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&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Elementos de proceso o control&lt;/span&gt;: son los que se van a programar, recibirán datos de los elementos de entrada para decidir que realizar con los elementos de salida. En nuestro caso es Arduino.&lt;/li&gt;
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&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Elementos de salida&lt;/span&gt;: van a ser los actuadores, los que va a decidir nuestro programa poner en funcionamiento y de que manera o parar, como: diodos leds, zumbadores, motores, etc.&lt;/li&gt;
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&lt;p&gt;No hay una realimentación, lo que significa el controlador da una orden de puesta en marcha a los actuadores sin que se vigile en ningún momento la señal de los sensores (elementos de entrada).&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/lazo_abierto_01.png&quot; alt=&quot;esquema lazo abierto&quot; width=&quot;408&quot; height=&quot;164&quot; style=&quot;float: left; margin-right: 2px; margin-left: 2px;&quot; /&gt;&lt;img src=&quot;resources/lazo_abierto_02.png&quot; alt=&quot;conexionado lazo abierto&quot; width=&quot;302&quot; height=&quot;400&quot; style=&quot;margin-right: 2px; margin-left: 2px;&quot; /&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Lazo Cerrado&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;hay realimentación, lo que quiere decir que el sistema de control siempre está vigilando los sensores (elementos de entrada) para realizar una acción u otra en función del estado de los mismos.&lt;/p&gt;
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&lt;ul&gt;
&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Hardware libre&lt;/span&gt;: los diseñadores han puesto a disposición de todo el mundo los circuitos físicos de la placa para poder fabricarla y/o modificarla.&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Software libre&lt;/span&gt;: el software que controla la placa también está puesto a disposición de todo el mundo para compartirlo e incluso modificarlo.&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Comunidad&lt;/span&gt;: hay una gran cantidad personas compartiendo, proyectos, código y soluciones por internet. El soporte de proyectos, dispositivos e información es muy amplio.&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Precio&lt;/span&gt;: muy económico.&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Simplicidad&lt;/span&gt;: se pueden realizar soluciones de control y robóticca de una manera sencilla.&lt;/li&gt;
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&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Pines digitales (0 a 13, 5V 40mA) (6 Salidas PWM 8 bits)&lt;/span&gt;: una señal es digital cuando sólo puede tomar dos valores (1 o 0, encendido o apagado, on off, etc). Sirven para conectar tanto salidas (actuadores) digitales (diodos led, motores, zumbadores, etc), como entradas (sensores) digitales (interruptores, pulsadores, finales de carrera, etc). Estos pines cuando se usan como salidas podemos decirles que estén conectados o no, que tengan voltaje (5V) o no (0V). Cuando se usan como entrada detectan cuando los elementos de entrada están cerrados o no. Cuando son de salida dan como máximo 5V y 40 mA.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Pines de alimentación o zona power&lt;/span&gt;: tenemos los pines gnd (ground tierra), sirven para cerrar el circuito, son el polo negativo de nuestra alimentación. Tenemos un gnd en la fila de los pines digitales y dos gnd más en la zona de alimentación (power). Además tenemos pines de alimentacón de 5V, 3,3V, y Vin. Este último sirve para dar alimentación externa a Arduino.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Entradas analógicas (A0 a A5, 0-5V 10 bits)&lt;/span&gt;: sirven para leer de sensores (entradas) datos que pueden tomar muchos valores y por tanto no son digitales, como temperaturas (con ntc), luz (con ldr), etc.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Microcontrolador (ATMEGA 328P, 8 bit, 16Mhz, 32KB flash, 1KB EEPROM, 2KB SRAM)&lt;/span&gt;: es el dispositivo dónde se guarda el programa y hace que se ejecute, así como controla todos los elementos de la placa. Sólo tiene almacenado un programa en memoria que se sobreescribe cuando se le sube otro.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Usb&lt;/span&gt;: es el puertor usb que sirve para dar alimentación a la placa y además comunicarse con el ordenador. A través de él subimos los programas a la placa.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Alimentación externa&lt;/span&gt;: conector que sirve para alimentar arduino con un elemento externo y que no se alimente por el PC (cargador, pila de 9v, etc). Soporta de 7 a 12V.&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;Botón de reset&lt;/span&gt;: cuando se pulsa reinicia el programa que tiene en memoria.&lt;/p&gt;
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              <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;La placa TDR-Steam es un Shield diseñado por ROBOLOT Team, que se conecta a los pines de un Arduino Uno. Esta placa trae integrados una serie de sensores y actuadores que permiten aprender a programar un sistema de control Arduino, con un conexionado ya establecido y por tanto sencillo.&lt;/p&gt;
&lt;p&gt;ES importante conocer los elementos de TDR-STeam, así como los pines a los que están conectados (pinout) para poder configurar posteriormente nuestros programas. &lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; style=&quot;float: right;&quot; /&gt;&lt;/p&gt;
&lt;table style=&quot;width: 36.8555%; height: 271px;&quot; border=&quot;1&quot;&gt;
&lt;tbody&gt;
&lt;tr style=&quot;height: 43px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 43px;&quot;&gt;&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; text-align: center; height: 43px;&quot;&gt;&lt;strong&gt;Sensor/Actuador/Módulo&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 43px; text-align: center;&quot;&gt;&lt;strong&gt;Pin de conexión&lt;/strong&gt;&lt;/td&gt;
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&lt;tr style=&quot;height: 43px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 43px;&quot;&gt;1&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 43px;&quot;&gt;Dos pulsadores (SW1,SW2)&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 43px; text-align: center;&quot;&gt;D2, D7&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;2&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Dos leds (Azul y Rojo)&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D13, D12&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;3&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;led RGB&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D6-D9-D10&lt;/td&gt;
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&lt;tr style=&quot;height: 10px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;4&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Módulo DHT11 Sensor de temperatura y humedad&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D4&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 10px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;5&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Zumbador o Piezo eléctrico&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D8&lt;/td&gt;
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&lt;tr style=&quot;height: 0px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;6&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Dos puertos (Entradas/Salidas) digitales&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D3 y D5&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;7&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Módulo receptor de infrarrojos (IR)&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;D11&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;8&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 10px;&quot;&gt;Módulo potenciómetro giratorio&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;A0&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 10px;&quot;&gt;9&lt;/td&gt;
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&lt;td style=&quot;width: 21.931%; height: 10px; text-align: center;&quot;&gt;A1&lt;/td&gt;
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&lt;td style=&quot;width: 2.60417%; height: 21px;&quot;&gt;10&lt;/td&gt;
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&lt;td style=&quot;width: 21.931%; height: 21px; text-align: center;&quot;&gt;A2&lt;/td&gt;
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&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 21px;&quot;&gt;11&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 21px;&quot;&gt;Interface I2C compatible con sensores y módulos Keyestudio&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 21px; text-align: center;&quot;&gt;
&lt;p&gt;SDA-A4&lt;/p&gt;
&lt;p&gt;SCL-A5&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 21px;&quot;&gt;12&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 21px;&quot;&gt;Puerto entrada analógico&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 21px; text-align: center;&quot;&gt;A3&lt;/td&gt;
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&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 21px;&quot;&gt;13&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 21px;&quot;&gt;Conexión de comunicaciones Bluetooth y Wifi (Switch On/Off)&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; height: 21px; text-align: center;&quot;&gt;Rx-Tx&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 2.60417%; height: 21px;&quot;&gt;14&lt;/td&gt;
&lt;td style=&quot;width: 27.7295%; height: 21px;&quot;&gt;Botón de reinicio&lt;/td&gt;
&lt;td style=&quot;width: 21.931%; text-align: center; height: 21px;&quot;&gt;-&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
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&lt;p&gt;&lt;img src=&quot;resources/arduinoblocks_entorno.png&quot; alt=&quot;arduinoblocks&quot; width=&quot;1289&quot; height=&quot;631&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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&lt;p&gt;Estos pines cuando se usan como salidas podemos decirles que estén conectados (valor HIGH o 1) o no (valor LOW o 0),  que tengan voltaje (5V) o no (0V). Cuando son de salida dan como máximo 5V y 40 mA.&lt;/p&gt;
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&lt;p&gt;En el shield tenemos conectadas las siguientes salidas digitales:&lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; style=&quot;float: right;&quot; /&gt;&lt;/p&gt;
&lt;table style=&quot;width: 32.2623%; height: 372px;&quot; border=&quot;1&quot;&gt;
&lt;tbody&gt;
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&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;&lt;strong&gt; &lt;/strong&gt;&lt;/td&gt;
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&lt;td style=&quot;width: 13.6493%; height: 43px; text-align: center;&quot;&gt;&lt;strong&gt;Pin de Conexión&lt;/strong&gt;&lt;/td&gt;
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&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;2&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 21px; text-align: center;&quot;&gt;Led Azul&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 21px; text-align: center;&quot;&gt;D13&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;2&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 21px; text-align: center;&quot;&gt;Led Rojo&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 21px; text-align: center;&quot;&gt;D12&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;3&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 21px; text-align: center;&quot;&gt;Led RGB&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 21px; text-align: center;&quot;&gt;D6-D9-D10&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 43px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;5&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 43px; text-align: center;&quot;&gt;Zumbador o Piezo eléctrico&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 43px; text-align: center;&quot;&gt;D8&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 64px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;6&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 64px; text-align: center;&quot;&gt;Dos puertos (entradas/salidas) digitales&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 64px; text-align: center;&quot;&gt;D3 y D5&lt;/td&gt;
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="114_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="36"></reference>
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                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
                 <list></list>
                 <string role="key" value="anchors_linked_from_fields"></string>
                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en iluminar de manera intermitente el led azul de TDR-Steam, que está asociado al pin digital 13. El led estará encendido durante 250 ms y se apagará durante 250 ms, de forma ininterrumpida.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Familiarizarse con el entorno de programación.&lt;/li&gt;
&lt;li&gt;Conocer la estructuras principales de un programa con Arduinoblocks.&lt;/li&gt;
&lt;li&gt;Conocer y controlar un led,&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código :&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto01.png&quot; alt=&quot;reto01&quot; width=&quot;353&quot; height=&quot;334&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <string role="key" value="htmlTag"></string>
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                 <string role="key" value="images"></string>
                 <instance class="exe.engine.galleryidevice.GalleryImages">
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                   <string role="key" value=".listitems"></string>
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                    <instance class="exe.engine.galleryidevice.GalleryImage">
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                       <dictionary>
                        <string role="key" value="_id"></string>
                        <int value="2419"></int>
                        <string role="key" value="_idevice"></string>
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                      <string role="key" value="_id"></string>
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                        <string role="key" value="_idevice"></string>
                        <reference key="36"></reference>
                        <string role="key" value="_package"></string>
                        <reference key="2"></reference>
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                        <string value="reto01.png"></string>
                        <string role="key" value="_userName"></string>
                        <string value="/tmp/tmpCSHmoe/reto01.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="5a398ec6e8e8820d808eda82e054de92"></string>
                        <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                        <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
                        <int value="2"></int>
                        <string role="key" value="warningMsg"></string>
                        <string value=""></string>
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                      <string role="key" value="_parent"></string>
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                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
                      <int value="3"></int>
                      <string role="key" value="makeThumbnail"></string>
                      <bool value="0"></bool>
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                   <string role="key" value="idevice"></string>
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                 <string role="key" value="intlinks_to_anchors"></string>
                 <dictionary></dictionary>
                 <string role="key" value="nextImageId"></string>
                 <int value="51"></int>
                 <string role="key" value="parentNode"></string>
                 <reference key="38"></reference>
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              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="10"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
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              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
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              <string role="key" value="userResources"></string>
              <list>
               <reference key="39"></reference>
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              <string role="key" value="version"></string>
              <int value="0"></int>
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            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="40">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="edit"></string>
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              <string role="key" value="emphasis"></string>
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              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
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               <instance class="exe.engine.extendedfieldengine.FileField" reference="41">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="1255"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="40"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
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                   <string role="key" value="_id"></string>
                   <int value="1256"></int>
                   <string role="key" value="_idevice"></string>
                   <reference key="41"></reference>
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                   <string value=""></string>
                   <string role="key" value="_name"></string>
                   <string value="Description"></string>
                   <string role="key" value="content"></string>
                   <unicode value="reto01_led_parpadeante.abp"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
                 <instance class="exe.engine.resource.Resource" reference="43">
                  <dictionary>
                   <string role="key" value="_idevice"></string>
                   <reference key="40"></reference>
                   <string role="key" value="_package"></string>
                   <reference key="2"></reference>
                   <string role="key" value="_storageName"></string>
                   <string value="reto01_led_parpadeante.abp"></string>
                   <string role="key" value="_userName"></string>
                   <string value="/tmp/tmpCSHmoe/reto01_led_parpadeante.abp"></string>
                   <string role="key" value="checksum"></string>
                   <string value="8872c9e41c33fea3d699c9819b8a095a"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
                   <int value="2"></int>
                   <string role="key" value="warningMsg"></string>
                   <string value=""></string>
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               </instance>
              </list>
              <string role="key" value="fileAttachmentsDesc"></string>
              <list></list>
              <string role="key" value="icon"></string>
              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="15"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="42">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
                <reference key="40"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Instructions"></string>
                <string role="key" value="_name"></string>
                <string value="Instructions"></string>
                <string role="key" value="anchor_names"></string>
                <list></list>
                <string role="key" value="anchors_linked_from_fields"></string>
                <dictionary></dictionary>
                <string role="key" value="content_w_resourcePaths"></string>
                <unicode content="true" value=""></unicode>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
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                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
                  <string role="key" value="idevice"></string>
                  <reference key="42"></reference>
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                </instance>
                <string role="key" value="intlinks_to_anchors"></string>
                <dictionary></dictionary>
                <string role="key" value="nextImageId"></string>
                <int value="0"></int>
                <string role="key" value="parentNode"></string>
                <reference key="38"></reference>
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              </instance>
              <string role="key" value="lastIdevice"></string>
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              <string role="key" value="message"></string>
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              <string role="key" value="originalicon"></string>
              <string value=""></string>
              <string role="key" value="parentNode"></string>
              <reference key="38"></reference>
              <string role="key" value="showDesc"></string>
              <instance class="exe.engine.extendedfieldengine.ChoiceField">
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                <string role="key" value="_id"></string>
                <int value="81"></int>
                <string role="key" value="_idevice"></string>
                <reference key="40"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Show Description"></string>
                <string role="key" value="_name"></string>
                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="options"></string>
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                  <string value="Yes"></string>
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              <string role="key" value="userResources"></string>
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               <reference key="43"></reference>
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              <string role="key" value="version"></string>
              <int value="0"></int>
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           <string role="key" value="_id"></string>
           <unicode value="5"></unicode>
           <string role="key" value="_package"></string>
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           <list></list>
           <string role="key" value="exe.engine.node.Node.persistenceVersion"></string>
           <int value="2"></int>
           <string role="key" value="exportType"></string>
           <string value="website"></string>
           <string role="key" value="last_full_node_path"></string>
           <string value="exe-node:Sistemas%20de%20control%20autom%C3%A1ticos%20programados%20con%20Arduino%20%2B%20TDR-Steam%20%2B%20Arduinoblocks:Salidas%20digitales%20y%20bucles:Reto%2001%20Led%20parpadeante"></string>
           <string role="key" value="parent"></string>
           <reference key="33"></reference>
           <string role="key" value="top_anchors_linked_from_fields"></string>
           <list></list>
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          </dictionary>
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         <instance class="exe.engine.node.Node" reference="46">
          <dictionary>
           <string role="key" value="_title"></string>
           <unicode value="Reto 02 Dos Leds parpadeantes alternativos. Variables"></unicode>
           <string role="key" value="idevices"></string>
           <list>
            <instance class="exe.engine.jsidevice.JsIdevice" reference="44">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="Variables"></unicode>
              <string role="key" value="_attributes"></string>
              <list>
               <tuple>
                <string value="title"></string>
                <list>
                 <string value="Title"></string>
                 <int value="0"></int>
                 <int value="0"></int>
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                 <int value="1"></int>
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               <tuple>
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                 <string value="CSS class"></string>
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                 <int value="2"></int>
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               <tuple>
                <string value="icon"></string>
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                 <string value="Icon"></string>
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                 <int value="3"></int>
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              <string value=""></string>
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                 <unicode value="114_2"></unicode>
                 <string role="key" value="_idevice"></string>
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                 <string role="key" value="anchor_names"></string>
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                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;Las variables son una reserva de memoria de nuestro programa para guardar un dato en nuestro microcontrolador, para posteriormente ser utilizado y/o modificado.&lt;/p&gt;
&lt;p&gt;En función del tipo de dato a guardar tenemos de varios tipos en Arduinoblocks:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Numéricas: sólo pueden tomar valores numéricos.&lt;/li&gt;
&lt;li&gt;Texto (alfanuméricas): sólo toman valores de texto o cadenas de texto.&lt;/li&gt;
&lt;li&gt;Booleanas: sólo pueden tomar valores Verdadero o Falso.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&quot;resources/variables.png&quot; alt=&quot;variables&quot; width=&quot;432&quot; height=&quot;209&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                        <string role="key" value="_userName"></string>
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                      <string role="key" value="makeThumbnail"></string>
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                 <string role="key" value="nextImageId"></string>
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              <string role="key" value="id"></string>
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              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
              <int value="3"></int>
              <string role="key" value="originalicon"></string>
              <string value=""></string>
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                 <int value="1"></int>
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                 <int value="2"></int>
                </list>
               </tuple>
               <tuple>
                <string value="icon"></string>
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                 <int value="3"></int>
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              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
              <string value="pbl-tools"></string>
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               <instance class="exe.engine.field.TextAreaField" reference="49">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="114_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="48"></reference>
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                 <string value=""></string>
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                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en realizar el encendido alternativo de los dos leds, cuando se enciende uno se debe apagar el otro, el tiempo de encendido y apagado debe ser de 250 ms . El tiempo de encendido y apagado lo tomaremos de una variable entera. &lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Familiarizarse con el entorno de programación.&lt;/li&gt;
&lt;li&gt;Utilizar variables.&lt;/li&gt;
&lt;li&gt;Repaso de control de leds.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código :&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto02.png&quot; alt=&quot;reto02&quot; width=&quot;758&quot; height=&quot;325&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <string role="key" value="htmlTag"></string>
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                   <string role="key" value=".listitems"></string>
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                       <dictionary>
                        <string role="key" value="_id"></string>
                        <int value="2447"></int>
                        <string role="key" value="_idevice"></string>
                        <none></none>
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                      <unicode value="116_114_2.53"></unicode>
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                        <reference key="48"></reference>
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                        <string value="reto02.png"></string>
                        <string role="key" value="_userName"></string>
                        <string value="/tmp/tmpCSHmoe/reto02.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="c19fb3cb2a92826ee9a21e67d57c4dda"></string>
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                        <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
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                      <string role="key" value="_parent"></string>
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                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
                      <int value="3"></int>
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                 <string role="key" value="nextImageId"></string>
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                 <reference key="46"></reference>
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              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="116"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
              <int value="3"></int>
              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
              <reference key="46"></reference>
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              <list></list>
              <string role="key" value="undo"></string>
              <bool value="1"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="50"></reference>
              </list>
              <string role="key" value="version"></string>
              <int value="0"></int>
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            </instance>
            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="51">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
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              <string role="key" value="emphasis"></string>
              <int value="1"></int>
              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
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               <instance class="exe.engine.extendedfieldengine.FileField" reference="52">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="1303"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="51"></reference>
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                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
                  <dictionary>
                   <string role="key" value="_id"></string>
                   <int value="1304"></int>
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                   <reference key="52"></reference>
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                   <string role="key" value="content"></string>
                   <unicode value="reto02_intermitencia_2leds_alterna.abp"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
                 <instance class="exe.engine.resource.Resource" reference="54">
                  <dictionary>
                   <string role="key" value="_idevice"></string>
                   <reference key="51"></reference>
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                   <string role="key" value="_storageName"></string>
                   <string value="reto02_intermitencia_2leds_alterna.abp"></string>
                   <string role="key" value="_userName"></string>
                   <string value="/tmp/tmpCSHmoe/reto02_intermitencia_2leds_alterna.abp"></string>
                   <string role="key" value="checksum"></string>
                   <string value="11aa389173d68436c081d23b7f08f463"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
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              <string role="key" value="fileAttachmentsDesc"></string>
              <list></list>
              <string role="key" value="icon"></string>
              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="117"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="53">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
                <reference key="51"></reference>
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                <string value="Instructions"></string>
                <string role="key" value="_name"></string>
                <string value="Instructions"></string>
                <string role="key" value="anchor_names"></string>
                <list></list>
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                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                <int value="2"></int>
                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
                  <string role="key" value="idevice"></string>
                  <reference key="53"></reference>
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                <string role="key" value="intlinks_to_anchors"></string>
                <dictionary></dictionary>
                <string role="key" value="nextImageId"></string>
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                <string role="key" value="_id"></string>
                <int value="81"></int>
                <string role="key" value="_idevice"></string>
                <reference key="51"></reference>
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                <string role="key" value="_name"></string>
                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="options"></string>
                <list>
                 <list>
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               <reference key="54"></reference>
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           <unicode value="7"></unicode>
           <string role="key" value="_package"></string>
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           <list></list>
           <string role="key" value="exe.engine.node.Node.persistenceVersion"></string>
           <int value="2"></int>
           <string role="key" value="exportType"></string>
           <string value="website"></string>
           <string role="key" value="last_full_node_path"></string>
           <string value="exe-node:Sistemas%20de%20control%20autom%C3%A1ticos%20programados%20con%20Arduino%20%2B%20TDR-Steam%20%2B%20Arduinoblocks:Salidas%20digitales%20y%20bucles:Reto%2002%20Dos%20Leds%20parpadeantes%20alternativos.%20Variables"></string>
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         <instance class="exe.engine.node.Node" reference="57">
          <dictionary>
           <string role="key" value="_title"></string>
           <unicode value="Reto 03 Repeticiones con leds parpadeantes"></unicode>
           <string role="key" value="idevices"></string>
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            <instance class="exe.engine.jsidevice.JsIdevice" reference="55">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="Task"></unicode>
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              <string value=""></string>
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                 <unicode value="114_2"></unicode>
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                 <reference key="55"></reference>
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                 <string value=""></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Trata de realizar cuatro repeticiones de intermitencias en el led rojo (pin 12)  y una sola repetición en el led azul (pin 13). Las intermitencias tienen un tiempo de encendido y de apagado de 250 ms.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Familiarizarse con el entorno de programación.&lt;/li&gt;
&lt;li&gt;Conocer y trabajar con bucle repetir.&lt;/li&gt;
&lt;li&gt;Repaso de control de led.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código :&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto3.png&quot; alt=&quot;reto03&quot; width=&quot;694&quot; height=&quot;410&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;El zumbador que tenemos en el shield es pasivo, por tanto para que funcione tenemos que darle o pasarle datos comos frecuencia de funcionamiento y duración. De esta manera podemos realizar notas musicales. Las frecuencias de las notas musicales son:&lt;/p&gt;
&lt;table border=&quot;1&quot; style=&quot;width: 28.7568%; height: 226px;&quot;&gt;
&lt;tbody&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; text-align: center; height: 18px;&quot;&gt;&lt;strong&gt;Nota&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; text-align: center; height: 18px;&quot;&gt;&lt;strong&gt;Frecuencia (Hz)&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;do (control)&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;261.6&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;do#&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;277.2&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;re#&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;293.7&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;mi&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;329.6&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;fa&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;349.2&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;fa#&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;370&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px; text-align: center;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px;&quot;&gt;sol&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px;&quot;&gt;392&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px; text-align: center;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px;&quot;&gt;sol#&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px;&quot;&gt;415.3&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 10px; text-align: center;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 10px;&quot;&gt;la&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 10px;&quot;&gt;440&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px; text-align: center;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px;&quot;&gt;la#&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px;&quot;&gt;466.2&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px; text-align: center;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px;&quot;&gt;si&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px;&quot;&gt;493.2&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 18px;&quot;&gt;
&lt;td style=&quot;width: 12.5946%; height: 18px; text-align: center;&quot;&gt;do&lt;/td&gt;
&lt;td style=&quot;width: 16.1622%; height: 18px; text-align: center;&quot;&gt;523.3&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <string value=""></string>
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              <string role="key" value="fields"></string>
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               <instance class="exe.engine.field.TextAreaField" reference="67">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="114_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="66"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value=""></string>
                 <string role="key" value="_name"></string>
                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en hacer sonar las notas musicales do y re en el zumbador (pin digital 8), con una separación entre ambas de 1 segundo, cada nota durará 100ms.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Familiarizarse con el entorno de programación.&lt;/li&gt;
&lt;li&gt;Control de zumbador.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código :&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto04.png&quot; alt=&quot;reto04&quot; width=&quot;455&quot; height=&quot;323&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <int value="58"></int>
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                 <reference key="65"></reference>
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              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="125"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
              <int value="3"></int>
              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
              <reference key="65"></reference>
              <string role="key" value="systemResources"></string>
              <list></list>
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              <bool value="1"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="68"></reference>
              </list>
              <string role="key" value="version"></string>
              <int value="0"></int>
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            </instance>
            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="69">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="edit"></string>
              <bool value="0"></bool>
              <string role="key" value="emphasis"></string>
              <int value="1"></int>
              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
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               <instance class="exe.engine.extendedfieldengine.FileField" reference="70">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="2178"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="69"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
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                   <string role="key" value="_id"></string>
                   <int value="2179"></int>
                   <string role="key" value="_idevice"></string>
                   <reference key="70"></reference>
                   <string role="key" value="_instruc"></string>
                   <string value=""></string>
                   <string role="key" value="_name"></string>
                   <string value="Description"></string>
                   <string role="key" value="content"></string>
                   <unicode value="reto04_zumbador_01.abp"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                   <int value="4"></int>
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                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
                 <instance class="exe.engine.resource.Resource" reference="72">
                  <dictionary>
                   <string role="key" value="_idevice"></string>
                   <reference key="69"></reference>
                   <string role="key" value="_package"></string>
                   <reference key="2"></reference>
                   <string role="key" value="_storageName"></string>
                   <string value="reto04_zumbador_01.abp"></string>
                   <string role="key" value="_userName"></string>
                   <string value="/tmp/tmpCSHmoe/reto04_zumbador_01.abp"></string>
                   <string role="key" value="checksum"></string>
                   <string value="e8edf0bb98ebcf12555aad2ce078df72"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
                   <int value="2"></int>
                   <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
                   <int value="2"></int>
                   <string role="key" value="warningMsg"></string>
                   <string value=""></string>
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                </dictionary>
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              <string role="key" value="fileAttachmentsDesc"></string>
              <list></list>
              <string role="key" value="icon"></string>
              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="126"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="71">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
                <reference key="69"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Instructions"></string>
                <string role="key" value="_name"></string>
                <string value="Instructions"></string>
                <string role="key" value="anchor_names"></string>
                <list></list>
                <string role="key" value="anchors_linked_from_fields"></string>
                <dictionary></dictionary>
                <string role="key" value="content_w_resourcePaths"></string>
                <unicode content="true" value=""></unicode>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                <int value="2"></int>
                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
                  <string role="key" value="idevice"></string>
                  <reference key="71"></reference>
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                <string role="key" value="intlinks_to_anchors"></string>
                <dictionary></dictionary>
                <string role="key" value="nextImageId"></string>
                <int value="0"></int>
                <string role="key" value="parentNode"></string>
                <reference key="65"></reference>
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              <string role="key" value="message"></string>
              <string value=""></string>
              <string role="key" value="originalicon"></string>
              <string value=""></string>
              <string role="key" value="parentNode"></string>
              <reference key="65"></reference>
              <string role="key" value="showDesc"></string>
              <instance class="exe.engine.extendedfieldengine.ChoiceField">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="81"></int>
                <string role="key" value="_idevice"></string>
                <reference key="69"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Show Description"></string>
                <string role="key" value="_name"></string>
                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="options"></string>
                <list>
                 <list>
                  <string value="yes"></string>
                  <string value="Yes"></string>
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                 <list>
                  <string value="no"></string>
                  <string value="No"></string>
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              <string role="key" value="systemResources"></string>
              <list></list>
              <string role="key" value="undo"></string>
              <bool value="0"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="72"></reference>
              </list>
              <string role="key" value="version"></string>
              <int value="0"></int>
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           <unicode value="9"></unicode>
           <string role="key" value="_package"></string>
           <reference key="2"></reference>
           <string role="key" value="anchor_fields"></string>
           <list></list>
           <string role="key" value="exe.engine.node.Node.persistenceVersion"></string>
           <int value="2"></int>
           <string role="key" value="exportType"></string>
           <string value="website"></string>
           <string role="key" value="last_full_node_path"></string>
           <string value="exe-node:Sistemas%20de%20control%20autom%C3%A1ticos%20programados%20con%20Arduino%20%2B%20TDR-Steam%20%2B%20Arduinoblocks:Salidas%20digitales%20y%20bucles:Reto%2004%20Notas%20musicales%20%28zumbador%29"></string>
           <string role="key" value="parent"></string>
           <reference key="33"></reference>
           <string role="key" value="top_anchors_linked_from_fields"></string>
           <list></list>
           <string role="key" value="children"></string>
           <list></list>
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         <instance class="exe.engine.node.Node" reference="75">
          <dictionary>
           <string role="key" value="_title"></string>
           <unicode value="Reto 05 Escala con zumbador"></unicode>
           <string role="key" value="idevices"></string>
           <list>
            <instance class="exe.engine.jsidevice.JsIdevice" reference="73">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="Task"></unicode>
              <string role="key" value="_attributes"></string>
              <list>
               <tuple>
                <string value="title"></string>
                <list>
                 <string value="Title"></string>
                 <int value="0"></int>
                 <int value="0"></int>
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               <tuple>
                <string value="category"></string>
                <list>
                 <string value="Category"></string>
                 <int value="0"></int>
                 <int value="1"></int>
                </list>
               </tuple>
               <tuple>
                <string value="css-class"></string>
                <list>
                 <string value="CSS class"></string>
                 <int value="0"></int>
                 <int value="2"></int>
                </list>
               </tuple>
               <tuple>
                <string value="icon"></string>
                <list>
                 <string value="Icon"></string>
                 <int value="0"></int>
                 <int value="3"></int>
                </list>
               </tuple>
              </list>
              <string role="key" value="_author"></string>
              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
              <string value="pbl-tools"></string>
              <string role="key" value="_purpose"></string>
              <string value=""></string>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="_valid"></string>
              <bool value="1"></bool>
              <string role="key" value="class_"></string>
              <unicode value="pbl"></unicode>
              <string role="key" value="edit"></string>
              <bool value="0"></bool>
              <string role="key" value="emphasis"></string>
              <int value="1"></int>
              <string role="key" value="exe.engine.jsidevice.JsIdevice.persistenceVersion"></string>
              <int value="1"></int>
              <string role="key" value="fields"></string>
              <list>
               <instance class="exe.engine.field.TextAreaField" reference="74">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="130_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="73"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value=""></string>
                 <string role="key" value="_name"></string>
                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
                 <list></list>
                 <string role="key" value="anchors_linked_from_fields"></string>
                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en dar una escala musical con el zumbador de TDR-Steam, la duración de cada nota debe ser de 100 ms y el tiempo entre nota y nota de 100 ms. La escala sólo debe sonar una vez.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repasar entorno de programación&lt;/li&gt;
&lt;li&gt;Conocer y trabajar con el zumbador&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto05.png&quot; alt=&quot;reto05&quot; width=&quot;513&quot; height=&quot;505&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <int value="2"></int>
                 <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                 <int value="3"></int>
                 <string role="key" value="htmlTag"></string>
                 <string value="div"></string>
                 <string role="key" value="images"></string>
                 <instance class="exe.engine.galleryidevice.GalleryImages">
                  <dictionary>
                   <string role="key" value=".listitems"></string>
                   <list>
                    <instance class="exe.engine.galleryidevice.GalleryImage">
                     <dictionary>
                      <string role="key" value="_caption"></string>
                      <instance class="exe.engine.field.TextField">
                       <dictionary>
                        <string role="key" value="_id"></string>
                        <int value="2448"></int>
                        <string role="key" value="_idevice"></string>
                        <none></none>
                        <string role="key" value="_instruc"></string>
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                        <string role="key" value="content"></string>
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                        <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                      <string role="key" value="_id"></string>
                      <unicode value="25_130_2.46"></unicode>
                      <string role="key" value="_imageResource"></string>
                      <instance class="exe.engine.resource.Resource" reference="76">
                       <dictionary>
                        <string role="key" value="_idevice"></string>
                        <reference key="73"></reference>
                        <string role="key" value="_package"></string>
                        <reference key="2"></reference>
                        <string role="key" value="_storageName"></string>
                        <string value="reto05.png"></string>
                        <string role="key" value="_userName"></string>
                        <string value="/tmp/tmpCSHmoe/reto05.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="7ec6da6f4fcb8ca4720c6aaded0c6dd8"></string>
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                        <int value="2"></int>
                        <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
                        <int value="2"></int>
                        <string role="key" value="warningMsg"></string>
                        <string value=""></string>
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                      <string role="key" value="_parent"></string>
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                      <string role="key" value="_thumbnailResource"></string>
                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
                      <int value="3"></int>
                      <string role="key" value="makeThumbnail"></string>
                      <bool value="0"></bool>
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                   <string role="key" value="idevice"></string>
                   <reference key="74"></reference>
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                 <dictionary></dictionary>
                 <string role="key" value="nextImageId"></string>
                 <int value="47"></int>
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                 <reference key="75"></reference>
                </dictionary>
               </instance>
              </list>
              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="25"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
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              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
              <reference key="75"></reference>
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              <list></list>
              <string role="key" value="undo"></string>
              <bool value="1"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="76"></reference>
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              <string role="key" value="version"></string>
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            </instance>
            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="77">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="edit"></string>
              <bool value="0"></bool>
              <string role="key" value="emphasis"></string>
              <int value="1"></int>
              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
              <list>
               <instance class="exe.engine.extendedfieldengine.FileField" reference="78">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="2181"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="77"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
                  <dictionary>
                   <string role="key" value="_id"></string>
                   <int value="2182"></int>
                   <string role="key" value="_idevice"></string>
                   <reference key="78"></reference>
                   <string role="key" value="_instruc"></string>
                   <string value=""></string>
                   <string role="key" value="_name"></string>
                   <string value="Description"></string>
                   <string role="key" value="content"></string>
                   <unicode value="reto05_zumbador_02.abp"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                   <int value="4"></int>
                  </dictionary>
                 </instance>
                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
                 <instance class="exe.engine.resource.Resource" reference="80">
                  <dictionary>
                   <string role="key" value="_idevice"></string>
                   <reference key="77"></reference>
                   <string role="key" value="_package"></string>
                   <reference key="2"></reference>
                   <string role="key" value="_storageName"></string>
                   <string value="reto05_zumbador_02.abp"></string>
                   <string role="key" value="_userName"></string>
                   <string value="/tmp/tmpCSHmoe/reto05_zumbador_02.abp"></string>
                   <string role="key" value="checksum"></string>
                   <string value="5387d22fa23a192c813c4b82ac6222c8"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
                   <int value="2"></int>
                   <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
                   <int value="2"></int>
                   <string role="key" value="warningMsg"></string>
                   <string value=""></string>
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                </dictionary>
               </instance>
              </list>
              <string role="key" value="fileAttachmentsDesc"></string>
              <list></list>
              <string role="key" value="icon"></string>
              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="26"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="79">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
                <reference key="77"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Instructions"></string>
                <string role="key" value="_name"></string>
                <string value="Instructions"></string>
                <string role="key" value="anchor_names"></string>
                <list></list>
                <string role="key" value="anchors_linked_from_fields"></string>
                <dictionary></dictionary>
                <string role="key" value="content_w_resourcePaths"></string>
                <unicode content="true" value=""></unicode>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                <int value="2"></int>
                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
                  <string role="key" value="idevice"></string>
                  <reference key="79"></reference>
                 </dictionary>
                </instance>
                <string role="key" value="intlinks_to_anchors"></string>
                <dictionary></dictionary>
                <string role="key" value="nextImageId"></string>
                <int value="0"></int>
                <string role="key" value="parentNode"></string>
                <reference key="75"></reference>
               </dictionary>
              </instance>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="message"></string>
              <string value=""></string>
              <string role="key" value="originalicon"></string>
              <string value=""></string>
              <string role="key" value="parentNode"></string>
              <reference key="75"></reference>
              <string role="key" value="showDesc"></string>
              <instance class="exe.engine.extendedfieldengine.ChoiceField">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="81"></int>
                <string role="key" value="_idevice"></string>
                <reference key="77"></reference>
                <string role="key" value="_instruc"></string>
                <string value="Show Description"></string>
                <string role="key" value="_name"></string>
                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
                <int value="3"></int>
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&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repasar entorno de trabajo.&lt;/li&gt;
&lt;li&gt;Conocer y usar melodías RTTTL.&lt;/li&gt;
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&lt;p&gt;&lt;img src=&quot;resources/reto06.png&quot; alt=&quot;reto06&quot; width=&quot;608&quot; height=&quot;239&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <int value="1"></int>
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                <string value="css-class"></string>
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                 <string value="CSS class"></string>
                 <int value="0"></int>
                 <int value="2"></int>
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                <string value="icon"></string>
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                 <string value="Icon"></string>
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                 <int value="3"></int>
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              <string role="key" value="_author"></string>
              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
              <string value="pbl-tools"></string>
              <string role="key" value="_purpose"></string>
              <string value=""></string>
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="127_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="93"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value=""></string>
                 <string role="key" value="_name"></string>
                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <string role="key" value="anchors_linked_from_fields"></string>
                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Con el zumbador de TDR-Steam (pin digital 8) debemos dar una señal sonora de socorro en código morse (pitidos largos/cortos) especificando una palabra, en nuestro caso SOS. la letra S en morse son tres pitidos de corta duración y la O tres pitidos de larga duración. También se puede hacer con señales luminosas y un led.&lt;/p&gt;
&lt;p&gt;Los pitidos cortos tendrán una duración de 100 ms y los largos 300 ms. Entre letra y letra debe pasar un tiempo de 300 ms y entre SOS (entre palabras) debe haber un tiempo de 1000 ms.&lt;/p&gt;
&lt;p&gt;Nota: Debes usar variables para guardar los tiempos y utilizar una función por cada letra.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de variables.&lt;/li&gt;
&lt;li&gt;Conocer y usar funciones.&lt;/li&gt;
&lt;li&gt;Repaso de zumbador.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto07.png&quot; alt=&quot;reto07&quot; width=&quot;871&quot; height=&quot;365&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
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              <string role="key" value="fileAttachmentFields"></string>
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                 <string value="File Field Help"></string>
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        <unicode value="Entradas digitales. Condicionales"></unicode>
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              <unicode value="112_2"></unicode>
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              <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;Como ya sabemos los pines digitales se pueden utilizar como salidas (conectando actuadores) y como entradas (conectando sensores). En TDR-Steam tenemos dos pulsadores conectados a los pines digitales 2 (SW1) y 7 (SW2). Estos dispositivos darán en su lectura si están pulsados HIGH o Verdadero y si no lo están LOW o Falso. Al ser digitales sólo disponen de dos estados en sus lecturas.&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/arduino_uno_digitales.png&quot; alt=&quot;entradas digitales arduino uno&quot; width=&quot;477&quot; height=&quot;338&quot; /&gt;&lt;/p&gt;
&lt;p&gt;En TDR-Steam tenemos conectadas las siguientes entradas digitales:&lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; style=&quot;float: right;&quot; /&gt;&lt;/p&gt;
&lt;table style=&quot;width: 32.2623%; height: 372px;&quot; border=&quot;1&quot;&gt;
&lt;tbody&gt;
&lt;tr style=&quot;height: 43px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;&lt;strong&gt; &lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 43px; text-align: center;&quot;&gt;&lt;strong&gt;Actuador&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 43px; text-align: center;&quot;&gt;&lt;strong&gt;Pin de Conexión&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;1&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 21px; text-align: center;&quot;&gt;Microinterruptor 1 (SW1)&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 21px; text-align: center;&quot;&gt;D2&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 21px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;1&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 21px; text-align: center;&quot;&gt;Microinterruptor 2 (SW2)&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 21px; text-align: center;&quot;&gt;D7&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 64px;&quot;&gt;
&lt;td style=&quot;width: 4.21997%; text-align: center;&quot;&gt;6&lt;/td&gt;
&lt;td style=&quot;width: 2.4307%; height: 64px; text-align: center;&quot;&gt;Dos puertos (entradas/salidas) digitales&lt;/td&gt;
&lt;td style=&quot;width: 13.6493%; height: 64px; text-align: center;&quot;&gt;D3 y D5&lt;/td&gt;
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&lt;p&gt;En Arduinoblocks podemos encontrar estas estructuras en las herramientas de &lt;em&gt;Lógica&lt;/em&gt;:&lt;/p&gt;
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&lt;p&gt;&lt;img src=&quot;resources/logica.png&quot; alt=&quot;logica&quot; width=&quot;282&quot; height=&quot;522&quot; /&gt;&lt;code&gt;&lt;/code&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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&lt;p&gt;Objetivos:&lt;/p&gt;
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&lt;li&gt;Conocer y usar condicionales&lt;/li&gt;
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              <unicode value="61"></unicode>
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                 <int value="1"></int>
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                 <int value="2"></int>
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                <string value="icon"></string>
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                 <string value="Icon"></string>
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              <string value=""></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de encender y apagar el led azul (pin digital 13), pulsando sólo el pulsador SW1 (pin digital 2). Cada vez que se pulse SW1 cambia de estado el led, de apagado a encendido o de encendido a apagado.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Trabajo con variables boolenas y operadores lógicos.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto10a.png&quot; alt=&quot;reto10a&quot; width=&quot;821&quot; height=&quot;337&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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&lt;ul&gt;
&lt;li&gt;Repaso de variables booleanas.&lt;/li&gt;
&lt;li&gt;Trabajo con operadores lógicos.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
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&lt;p&gt;&lt;img src=&quot;resources/reto10b.png&quot; alt=&quot;reto10b&quot; width=&quot;897&quot; height=&quot;290&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;En arduino UNO tenemos una serie de pines digitales (3, 5, 6, 9, 10, y 11), que cuando se usan como salidas pueden tener modulación de ancho de pulso (PWM). La modulación de ancho de pulso, o&lt;img src=&quot;resources/Pwm_5steps.gif&quot; alt=&quot;pwm&quot; width=&quot;326&quot; height=&quot;357&quot; style=&quot;float: right; margin: 8px;&quot; /&gt; PWM, sirve para obtener resultados analógicos con medios digitales. Las salidas digitales se utilizan para crear una onda cuadrada, una señal que se activa y desactiva con una frecuencia en el tiempo. En función del porcentaje de tiempo que está señal está a HIGH (5V) frente a LOW (0V) obtendremos una tensión en la salida entre 0 y 5 Voltios. Este porcentaje de tiempo se da pasando un valor comprendido entre 0 (0% por ciento del tiempo encendido) y 255 (100% del tiempo encendido). En el gráfico de la derecha se muestra un ejemplo, si damos la orden &lt;em&gt;analogWrite (pin,0)&lt;/em&gt; estaría el 0% del tiempo a 5V y por tanto estaría siempre apagado, en el segundo caso dando la orden &lt;em&gt;analogWrite (pin,64)&lt;/em&gt; estaría el 25% del tiempo a 5V y por tanto mostraría la salida un valor de tensión media baja (5V/4), con la orden &lt;em&gt;analogWrite (pin,127)&lt;/em&gt; estaría el 50% del tiempo a 5V y por tanto mostraría la salida un valor de tensión media (5V/2), y así hasta la orden &lt;em&gt;analogWrite (pin,255)&lt;/em&gt; que estaría el 100% del tiempo a 5V.&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/arduino_uno_salidas_pwm.png&quot; alt=&quot;arduino uno pwm&quot; width=&quot;381&quot; height=&quot;270&quot; /&gt;&lt;/p&gt;
&lt;p&gt; En el Shield tenemos conectadas las siguientes salidas PWM:&lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; style=&quot;float: right;&quot; /&gt;&lt;/p&gt;
&lt;table border=&quot;1&quot; style=&quot;width: 27.9684%; height: 56px;&quot;&gt;
&lt;tbody&gt;
&lt;tr style=&quot;height: 36px;&quot;&gt;
&lt;td style=&quot;width: 4.84845%; height: 36px;&quot;&gt;&lt;/td&gt;
&lt;td style=&quot;width: 12.9292%; height: 36px; text-align: center;&quot;&gt;&lt;strong&gt;Sensor/Actuador/Módulo&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;width: 10.1906%; height: 36px; text-align: center;&quot;&gt;&lt;strong&gt;Pin de conexión&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 10px;&quot;&gt;
&lt;td style=&quot;width: 4.84845%; height: 10px; text-align: center;&quot;&gt;3&lt;/td&gt;
&lt;td style=&quot;width: 12.9292%; height: 10px;&quot;&gt;led RGB&lt;/td&gt;
&lt;td style=&quot;width: 10.1906%; height: 10px; text-align: center;&quot;&gt;D6-D9-D10&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;height: 10px;&quot;&gt;
&lt;td style=&quot;width: 4.84845%; height: 10px; text-align: center;&quot;&gt;6&lt;/td&gt;
&lt;td style=&quot;width: 12.9292%; height: 10px;&quot;&gt;Dos puertos (Entradas/Salidas) digitales&lt;/td&gt;
&lt;td style=&quot;width: 10.1906%; height: 10px; text-align: center;&quot;&gt;D3 y D5&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
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        <string value="exe-node:Sistemas%20de%20control%20autom%C3%A1ticos%20programados%20con%20Arduino%20%2B%20TDR-Steam%20%2B%20Arduinoblocks:Salidas%20PWM%20%28anal%C3%B3gicas%29"></string>
        <string role="key" value="parent"></string>
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        <string role="key" value="top_anchors_linked_from_fields"></string>
        <list></list>
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         <instance class="exe.engine.node.Node" reference="148">
          <dictionary>
           <string role="key" value="_title"></string>
           <unicode value="Reto 11 Encender led RGB"></unicode>
           <string role="key" value="idevices"></string>
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            <instance class="exe.engine.jsidevice.JsIdevice" reference="146">
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              <string role="key" value="_title"></string>
              <unicode value="Led RGB"></unicode>
              <string role="key" value="_attributes"></string>
              <list>
               <tuple>
                <string value="title"></string>
                <list>
                 <string value="Title"></string>
                 <int value="0"></int>
                 <int value="0"></int>
                </list>
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               <tuple>
                <string value="category"></string>
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                 <string value="Category"></string>
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                 <int value="1"></int>
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               <tuple>
                <string value="css-class"></string>
                <list>
                 <string value="CSS class"></string>
                 <int value="0"></int>
                 <int value="2"></int>
                </list>
               </tuple>
               <tuple>
                <string value="icon"></string>
                <list>
                 <string value="Icon"></string>
                 <int value="0"></int>
                 <int value="3"></int>
                </list>
               </tuple>
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              <string role="key" value="_author"></string>
              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
              <string value="text"></string>
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              <int value="1"></int>
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="167_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="146"></reference>
                 <string role="key" value="_instruc"></string>
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                 <string role="key" value="_name"></string>
                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <string role="key" value="anchors_linked_from_fields"></string>
                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;El Led RGB, está compuesto por tres leds que pueden lucir a la vez, pudiendo estar conectados a pines de salida PWM&lt;img src=&quot;resources/led_rgb.svg&quot; alt=&quot;led RGB&quot; width=&quot;76&quot; height=&quot;257&quot; style=&quot;float: right; margin-right: 5px; margin-left: 5px;&quot; /&gt; (analógicos). Las siglas RGB se corresponden a los colores luz &lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;Red&lt;/span&gt;&lt;/strong&gt; (pin digital 6  en TDR-Steam) , &lt;span style=&quot;color: #008000;&quot;&gt;&lt;strong&gt;Green&lt;/strong&gt;&lt;/span&gt; (pin digital 9 en TDR-Steam) y &lt;span style=&quot;color: #0000ff;&quot;&gt;&lt;strong&gt;Blue&lt;/strong&gt;&lt;/span&gt; (pin digital 10 en TDR-Steam). Con este dispositivo y haciendo lucir a más o menos voltaje cada uno de los tres colores primarios luz puedo obtener una coloración distinta del led RGB.&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <string role="key" value="htmlTag"></string>
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                   <string role="key" value=".listitems"></string>
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                 <int value="0"></int>
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              <string value=""></string>
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              <string value="pbl-tools"></string>
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              <string value=""></string>
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="168_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="150"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value=""></string>
                 <string role="key" value="_name"></string>
                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Consiste en hacer una secuencia de colores en el led RGB (Rojo, azul y verde), siempre con máxima saturación de color (tope de color de cada) y una duración de cada color de 1 segundo. Recordar que el led rojo del RGB está conectado al pin 6, el azul al 10 y el verde al 9.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Conocer y usar pines PWM.&lt;/li&gt;
&lt;li&gt;Conocer y usar led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto11.png&quot; alt=&quot;reto11&quot; width=&quot;688&quot; height=&quot;493&quot; /&gt;&lt;/p&gt;
&lt;p&gt;Código b:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto11b.png&quot; alt=&quot;reto11b&quot; width=&quot;638&quot; height=&quot;423&quot; /&gt;&lt;/p&gt;
&lt;p&gt;Código c:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto11c.png&quot; alt=&quot;reto11c&quot; width=&quot;780&quot; height=&quot;415&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                        <string value="reto11b.png"></string>
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                        <string value="/tmp/tmpCSHmoe/reto11b.png"></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de encender y apagar progresivamente de menos a más y luego de más a menos cualquiera de los colores en el led RGB de TDR-Steam.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Conocer y usar bucle contar (for).&lt;/li&gt;
&lt;li&gt;Repasar led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
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                 <int value="2282"></int>
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                 <string value="File Field Help"></string>
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                 <string value=""></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Cada vez que se pulsa el pulsador SW1 (pin digital 2) se incrementa la luminosidad del led RGB (en el color que quieras) en 32 unidades. Si el led llega a su luminosidad máxima y se sigue pulsando bajará su luminosidad en 32 unidades hasta que llegue a la luminosidad mínima. Si el led llega a su luminosidad mínima y se sigue pulsando subirá su luminosidad en 32 unidades hasta que llegue a la luminosidad máxima.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de condicionales&lt;/li&gt;
&lt;li&gt;Repaso de pulsadores&lt;/li&gt;
&lt;li&gt;Repaso de led RGB&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto13.png&quot; alt=&quot;reto13&quot; width=&quot;761&quot; height=&quot;573&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <unicode value="File Attachments"></unicode>
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              <unicode value="Toughra Technologies FZ LLC."></unicode>
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                        <string value="/tmp/tmpCSHmoe/enteros_aleatorios.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="0d980e2ae8ef63c91b7d08b968723a79"></string>
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                 <string role="key" value="nextImageId"></string>
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                 <reference key="181"></reference>
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              <unicode value="Task"></unicode>
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                 <int value="0"></int>
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                 <int value="1"></int>
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                 <string value="CSS class"></string>
                 <int value="0"></int>
                 <int value="2"></int>
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                <string value="icon"></string>
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                 <string value="Icon"></string>
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                 <int value="3"></int>
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              <string role="key" value="_author"></string>
              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
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              <string role="key" value="fields"></string>
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               <instance class="exe.engine.field.TextAreaField" reference="184">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="169_2"></unicode>
                 <string role="key" value="_idevice"></string>
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                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <dictionary></dictionary>
                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30:00&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de ofrecer un color aleatorio en el led RGB de TDR-Steam, el color va cambiando a intervalos de 1 segundo. Para realizar el color en el led llama a una función.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Trabajo con números aleatorios.&lt;/li&gt;
&lt;li&gt;Trabajar con funciones pasando parámetros.&lt;/li&gt;
&lt;li&gt;Repaso de led RGB.&lt;/li&gt;
&lt;li&gt;Trabajo con variables locales.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto14.png&quot; alt=&quot;reto14&quot; width=&quot;705&quot; height=&quot;507&quot; /&gt;&lt;/p&gt;
&lt;p&gt;Código b sin usar funciones:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto14b.png&quot; alt=&quot;reto14b&quot; width=&quot;931&quot; height=&quot;352&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
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                 <string role="key" value="htmlTag"></string>
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                 <string role="key" value="images"></string>
                 <instance class="exe.engine.galleryidevice.GalleryImages">
                  <dictionary>
                   <string role="key" value=".listitems"></string>
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                      <string role="key" value="_caption"></string>
                      <instance class="exe.engine.field.TextField">
                       <dictionary>
                        <string role="key" value="_id"></string>
                        <int value="2425"></int>
                        <string role="key" value="_idevice"></string>
                        <none></none>
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                      <string role="key" value="_id"></string>
                      <unicode value="43_169_2.49"></unicode>
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                      <instance class="exe.engine.resource.Resource" reference="185">
                       <dictionary>
                        <string role="key" value="_idevice"></string>
                        <reference key="183"></reference>
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                        <reference key="2"></reference>
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                        <string value="reto14.png"></string>
                        <string role="key" value="_userName"></string>
                        <string value="/tmp/tmpCSHmoe/reto14.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="8753a5bbc19989db9a13d959eda07170"></string>
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                      <string role="key" value="_parent"></string>
                      <reference key="184"></reference>
                      <string role="key" value="_thumbnailResource"></string>
                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
                      <int value="3"></int>
                      <string role="key" value="makeThumbnail"></string>
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                    </instance>
                    <instance class="exe.engine.galleryidevice.GalleryImage">
                     <dictionary>
                      <string role="key" value="_caption"></string>
                      <instance class="exe.engine.field.TextField">
                       <dictionary>
                        <string role="key" value="_id"></string>
                        <int value="2438"></int>
                        <string role="key" value="_idevice"></string>
                        <none></none>
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                      <string role="key" value="_id"></string>
                      <unicode value="43_169_2.50"></unicode>
                      <string role="key" value="_imageResource"></string>
                      <instance class="exe.engine.resource.Resource" reference="186">
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                        <reference key="183"></reference>
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                        <reference key="2"></reference>
                        <string role="key" value="_storageName"></string>
                        <string value="reto14b.png"></string>
                        <string role="key" value="_userName"></string>
                        <string value="/tmp/tmpCSHmoe/reto14b.png"></string>
                        <string role="key" value="checksum"></string>
                        <string value="f2707fe5927c0c49d8d9538f3fe05900"></string>
                        <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                        <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
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                      <string role="key" value="_parent"></string>
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                      <string role="key" value="_thumbnailResource"></string>
                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
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                      <string role="key" value="makeThumbnail"></string>
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                   <string role="key" value="idevice"></string>
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                 <string role="key" value="intlinks_to_anchors"></string>
                 <dictionary></dictionary>
                 <string role="key" value="nextImageId"></string>
                 <int value="51"></int>
                 <string role="key" value="parentNode"></string>
                 <reference key="181"></reference>
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              <unicode value="activity"></unicode>
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              <unicode value="43"></unicode>
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              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
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            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="187">
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              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
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              <unicode value="File Attachments Idevice."></unicode>
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              <string role="key" value="fileAttachmentFields"></string>
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="2289"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="187"></reference>
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                 <string value="File Field Help"></string>
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                 <string value="File Field"></string>
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                 <none></none>
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                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
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                   <string role="key" value="_id"></string>
                   <int value="2290"></int>
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                   <unicode value="reto14_rgb_04.abp"></unicode>
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                   <int value="4"></int>
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                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
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                   <string role="key" value="_idevice"></string>
                   <reference key="187"></reference>
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                   <string value="reto14_rgb_04.abp"></string>
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                 <string value="File Field"></string>
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                 <instance class="exe.engine.field.TextField">
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                   <int value="2292"></int>
                   <string role="key" value="_idevice"></string>
                   <reference key="189"></reference>
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                 <string role="key" value="fileInstruc"></string>
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                 <instance class="exe.engine.resource.Resource" reference="192">
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                   <reference key="187"></reference>
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                   <string value="reto14b_rgb_04.abp"></string>
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                   <string value="/tmp/tmpCSHmoe/reto14b_rgb_04.abp"></string>
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                   <string value="7f318d0ac53680d0cc52789377d5976c"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                   <string value=""></string>
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                 </instance>
                </dictionary>
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              </list>
              <string role="key" value="fileAttachmentsDesc"></string>
              <list></list>
              <string role="key" value="icon"></string>
              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="65"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="190">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
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                <string value="Instructions"></string>
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                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
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                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
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                  <reference key="190"></reference>
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              <string value=""></string>
              <string role="key" value="parentNode"></string>
              <reference key="181"></reference>
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              <instance class="exe.engine.extendedfieldengine.ChoiceField">
               <dictionary>
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                <int value="81"></int>
                <string role="key" value="_idevice"></string>
                <reference key="187"></reference>
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                <string value="Show Description"></string>
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                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                <int value="4"></int>
                <string role="key" value="options"></string>
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                  <string value="Yes"></string>
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                  <string value="No"></string>
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              <string role="key" value="userResources"></string>
              <list>
               <reference key="191"></reference>
               <reference key="192"></reference>
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&lt;p&gt; En TDR-Steam tenemos disponibles las siguientes entradas analógicas:&lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; style=&quot;float: right;&quot; /&gt;&lt;/p&gt;
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&lt;p&gt;SDA-A4&lt;/p&gt;
&lt;p&gt;SCL-A5&lt;/p&gt;
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&lt;p&gt;Las instrucciones para comunicación serie aparecen en el bloque de herramientas &lt;em&gt;Comunicaciones &amp;gt; Puerto Serie.&lt;/em&gt;&lt;/p&gt;
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                <string value="icon"></string>
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              <string role="key" value="_author"></string>
              <string value=""></string>
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              <string value="pbl-tools"></string>
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                <dictionary>
                 <string role="key" value="_id"></string>
                 <unicode value="170_2"></unicode>
                 <string role="key" value="_idevice"></string>
                 <reference key="203"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value=""></string>
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                 <string value=""></string>
                 <string role="key" value="anchor_names"></string>
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                 <string role="key" value="anchors_linked_from_fields"></string>
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                 <string role="key" value="content_w_resourcePaths"></string>
                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de encender o apagar en nuestro caso el led RGB (pines 6, 9 y 10) en función si se supera o no el valor de un umbral de cantidad de luz medida con la ldr de TDR-Steam (pin A1). En concreto se encenderá si la cantidad de luz baja de 512 y se apagará si el valor de luz es igual o mayor a 512. En todo momento podremos ver los valores de luz de la LDR por la consola serie.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Comunicaciones serie.&lt;/li&gt;
&lt;li&gt;Lecturas de LDR.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Repaso de led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto15.png&quot; alt=&quot;reto15&quot; width=&quot;789&quot; height=&quot;550&quot; /&gt;&lt;/p&gt;
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                      <string role="key" value="_parent"></string>
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                      <string role="key" value="_thumbnailResource"></string>
                      <none></none>
                      <string role="key" value="exe.engine.galleryidevice.GalleryImage.persistenceVersion"></string>
                      <int value="3"></int>
                      <string role="key" value="makeThumbnail"></string>
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                 <dictionary></dictionary>
                 <string role="key" value="nextImageId"></string>
                 <int value="37"></int>
                 <string role="key" value="parentNode"></string>
                 <reference key="199"></reference>
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              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="47"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
              <int value="3"></int>
              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
              <reference key="199"></reference>
              <string role="key" value="systemResources"></string>
              <list></list>
              <string role="key" value="undo"></string>
              <bool value="1"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="205"></reference>
              </list>
              <string role="key" value="version"></string>
              <int value="0"></int>
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            </instance>
            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="206">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="edit"></string>
              <bool value="0"></bool>
              <string role="key" value="emphasis"></string>
              <int value="1"></int>
              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
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               <instance class="exe.engine.extendedfieldengine.FileField" reference="207">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="2295"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="206"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
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                   <string role="key" value="_id"></string>
                   <int value="2296"></int>
                   <string role="key" value="_idevice"></string>
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                   <unicode value="reto15_ldr_01.abp"></unicode>
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                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
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                   <string value="/tmp/tmpCSHmoe/reto15_ldr_01.abp"></string>
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              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="66"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="208">
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                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
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                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
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                <string role="key" value="htmlTag"></string>
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                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
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                <int value="81"></int>
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                <reference key="206"></reference>
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                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
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           <string value="website"></string>
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           <unicode value="Reto 16 Interruptor crepuscular progresivo"></unicode>
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              <unicode value="Task"></unicode>
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                <string value="icon"></string>
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                 <string value="Icon"></string>
                 <int value="0"></int>
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              <string value=""></string>
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              <string value="pbl-tools"></string>
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                 <string role="key" value="_id"></string>
                 <unicode value="168_2"></unicode>
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                 <string value=""></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de encender el led RGB (pines 6, 9 y 10) más o menos en función de la cantidad de luz que incida en la LDR (A1). A mayor cantidad de luz en la LDR menos tiene que lucir el LED RGB, y viceversa. Todo ello tiene que ser de forma progresiva y proporcional.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Cambio de escala en variables (mapeo).&lt;/li&gt;
&lt;li&gt;Repaso comunicaciones serie.&lt;/li&gt;
&lt;li&gt;Repaso de lectura de LDR.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Repaso de led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;&lt;span style=&quot;font-size: 1.05em;&quot;&gt;Código:&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto16.png&quot; alt=&quot;reto16&quot; width=&quot;904&quot; height=&quot;531&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                        <int value="2435"></int>
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                 <dictionary></dictionary>
                 <string role="key" value="nextImageId"></string>
                 <int value="37"></int>
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                 <reference key="212"></reference>
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              <string role="key" value="icon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="id"></string>
              <unicode value="48"></unicode>
              <string role="key" value="ideviceCategory"></string>
              <unicode value="Text and Tasks"></unicode>
              <string role="key" value="lastIdevice"></string>
              <bool value="0"></bool>
              <string role="key" value="nextFieldId"></string>
              <int value="3"></int>
              <string role="key" value="originalicon"></string>
              <unicode value="activity"></unicode>
              <string role="key" value="parentNode"></string>
              <reference key="212"></reference>
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              <string role="key" value="undo"></string>
              <bool value="1"></bool>
              <string role="key" value="userResources"></string>
              <list>
               <reference key="213"></reference>
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              <string role="key" value="version"></string>
              <int value="0"></int>
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            <instance class="exe.engine.fileattachidevice.FileAttachIdeviceInc" reference="214">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="File Attachments"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="File Attachments Idevice."></unicode>
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              <int value="1"></int>
              <string role="key" value="exe.engine.fileattachidevice.FileAttachIdeviceInc.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="fileAttachmentFields"></string>
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               <instance class="exe.engine.extendedfieldengine.FileField" reference="215">
                <dictionary>
                 <string role="key" value="_id"></string>
                 <int value="2298"></int>
                 <string role="key" value="_idevice"></string>
                 <reference key="214"></reference>
                 <string role="key" value="_instruc"></string>
                 <string value="File Field Help"></string>
                 <string role="key" value="_name"></string>
                 <string value="File Field"></string>
                 <string role="key" value="alwaysNameTo"></string>
                 <none></none>
                 <string role="key" value="exe.engine.extendedfieldengine.FileField.persistenceVersion"></string>
                 <int value="5"></int>
                 <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                 <int value="4"></int>
                 <string role="key" value="fileDescription"></string>
                 <instance class="exe.engine.field.TextField">
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                   <string role="key" value="_id"></string>
                   <int value="2299"></int>
                   <string role="key" value="_idevice"></string>
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                   <string role="key" value="content"></string>
                   <unicode value="reto16_ldr_02.abp"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                 <string role="key" value="fileInstruc"></string>
                 <string value="Upload a file"></string>
                 <string role="key" value="fileResource"></string>
                 <instance class="exe.engine.resource.Resource" reference="217">
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                   <string role="key" value="_idevice"></string>
                   <reference key="214"></reference>
                   <string role="key" value="_package"></string>
                   <reference key="2"></reference>
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                   <string role="key" value="_userName"></string>
                   <string value="/tmp/tmpCSHmoe/reto16_ldr_02.abp"></string>
                   <string role="key" value="checksum"></string>
                   <string value="04b08267d7583b42dcb22f4c399fbf2d"></string>
                   <string role="key" value="exe.engine.resource.Resource.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.resource._Resource.persistenceVersion"></string>
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              <string role="key" value="fileAttachmentsDesc"></string>
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              <string value="assignment"></string>
              <string role="key" value="id"></string>
              <unicode value="67"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="216">
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                <string role="key" value="_id"></string>
                <int value="82"></int>
                <string role="key" value="_idevice"></string>
                <reference key="214"></reference>
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                <string value="Instructions"></string>
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                <unicode content="true" value=""></unicode>
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                <int value="2"></int>
                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                <int value="3"></int>
                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
                  <string role="key" value="idevice"></string>
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              <reference key="212"></reference>
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                <string role="key" value="_id"></string>
                <int value="81"></int>
                <string role="key" value="_idevice"></string>
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                <string value="Show description and link"></string>
                <string role="key" value="content"></string>
                <unicode value="yes"></unicode>
                <string role="key" value="exe.engine.extendedfieldengine.ChoiceField.persistenceVersion"></string>
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                <int value="4"></int>
                <string role="key" value="options"></string>
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           <unicode value="Reto 17 Control de leds con potenciómetro"></unicode>
           <string role="key" value="idevices"></string>
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              <string role="key" value="_title"></string>
              <unicode value="Task"></unicode>
              <string role="key" value="_attributes"></string>
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                <string value="css-class"></string>
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                 <string value="CSS class"></string>
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                 <int value="2"></int>
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                <string value="icon"></string>
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                 <string value="Icon"></string>
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              <string value=""></string>
              <string role="key" value="_iDeviceDir"></string>
              <string value="pbl-tools"></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en encender el led rojo (salida digital 12) o azul (salida digital 13) en función de la posición del potenciómetro (entrada analógica 0, A0). De la mitad hacia la izquierda de la posición del cursor del potenciómetro encenderá el led azul pin 13 (valores de 0 a 512) y de la mitad a la derecha el rojo pin 12 (valores de 512 a 1023). Además mostrará en el monitor serie el valor de lectura analógica del potenciómetro.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso comunicaciones serie.&lt;/li&gt;
&lt;li&gt;Conocer y trabajar con potenciómetro.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto17.png&quot; alt=&quot;reto17&quot; width=&quot;606&quot; height=&quot;613&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <int value="1815"></int>
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                 <string value="File Field Help"></string>
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                 <string value="File Field"></string>
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                 <none></none>
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              <unicode value="68"></unicode>
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&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de mapeo de valores.&lt;/li&gt;
&lt;li&gt;Repaso comunicaciones serie.&lt;/li&gt;
&lt;li&gt;Repaso de Potenciómetro.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Repaso de led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto18.png&quot; alt=&quot;reto18&quot; width=&quot;901&quot; height=&quot;544&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <unicode value="File Attachments"></unicode>
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              <unicode value="Toughra Technologies FZ LLC."></unicode>
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                 <int value="2301"></int>
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                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;Estas pantallas LCD (Liquid Crystal Display), son actuadores que sirven para mostrar datos. Suele haber dos tipos la 16x2 (16&lt;img src=&quot;resources/16x2_lcd_with_iicmodule.png&quot; alt=&quot;lcd&quot; width=&quot;300&quot; height=&quot;300&quot; style=&quot;float: right; margin-right: 5px; margin-left: 5px;&quot; /&gt; columnas y dos filas) y las 20x4 (20 columnas y 4 filas). La conexión de estas pantallas con arduino suele ser por el puerto o bus I2C, en TDR-Steam tenemos una conexión a tal efecto (conector 11), con pines Vcc, GND, SDA y SCL. En la parte trasera de la pantalla tenemos los mismos pines para ser conectados con los pines del conector 11 de TDR-Steam.&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/tdr-steam.png&quot; alt=&quot;tdr-steam&quot; width=&quot;500&quot; height=&quot;382&quot; /&gt;&lt;/p&gt;
&lt;p&gt;Las instrucciones de Arduinoblocks para controlar pantallas LCD se encuentran en las herramientas de &lt;em&gt;Visualización &amp;gt; Pantalla LCD (I2C)&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/arduinoblocks_lcd.png&quot; alt=&quot;arduinoblocks lcd&quot; width=&quot;665&quot; height=&quot;574&quot; /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de un control de turno, para ello tenemos dos pulsadores SW1 (entrada digital 2) y SW2 (entrada digital 7) y una pantalla LCD 16x2 (16 columnas y 2 filas) para mostrar el turno actual. Si se pulsa el pulsador SW1 el turno avanza en uno, si se pulsa el pulsador SW2 el turno retrocede en uno. El turno no puede ser un número negativo.&lt;/p&gt;
&lt;p&gt; Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Conocer y usar pantalla LCD.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Repaso de pulsadores.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto19.png&quot; alt=&quot;reto19&quot; width=&quot;541&quot; height=&quot;585&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <unicode value="70"></unicode>
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                <int value="82"></int>
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                <int value="81"></int>
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              <string role="key" value="_title"></string>
              <unicode value="Task"></unicode>
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                 <int value="1"></int>
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                 <string value="CSS class"></string>
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                 <int value="2"></int>
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                 <int value="3"></int>
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               <instance class="exe.engine.field.TextAreaField" reference="251">
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                 <unicode value="168_2"></unicode>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;15&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;El reto consiste en hacer un scroll de texto de izquierda a derecha y luego de derecha a izquierda a través de la pantalla de la LCD 16x2.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de bucles contar (for).&lt;/li&gt;
&lt;li&gt;Repaso de pantalla LCD.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto20.png&quot; alt=&quot;reto20&quot; width=&quot;619&quot; height=&quot;518&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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              <string role="key" value="_author"></string>
              <unicode value="Toughra Technologies FZ LLC."></unicode>
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                 <int value="2308"></int>
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                 <instance class="exe.engine.field.TextField">
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                 <string value="Upload a file"></string>
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              <unicode value="85"></unicode>
              <string role="key" value="introHTML"></string>
              <instance class="exe.engine.field.TextAreaField" reference="256">
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                <int value="82"></int>
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                <string value="Instructions"></string>
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                <string value="Instructions"></string>
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                  <list></list>
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                  <reference key="256"></reference>
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              <instance class="exe.engine.extendedfieldengine.ChoiceField">
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                <int value="81"></int>
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                <unicode value="yes"></unicode>
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&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de pantalla LCD.&lt;/li&gt;
&lt;li&gt;Realizar símbolos para LCD.&lt;/li&gt;
&lt;li&gt;Conocer y usar sensor LM35.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
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                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;El DHT11 es un sensor que permite realizar la medición simultánea de temperatura y humedad.&lt;img src=&quot;resources/dht11.jpg&quot; alt=&quot;dht11&quot; width=&quot;289&quot; height=&quot;289&quot; style=&quot;float: right; margin-right: 4px; margin-left: 4px;&quot; /&gt;&lt;/p&gt;
&lt;p&gt;Estos sensores disponen de un microprocesador que realiza la medición, dando su valor mediante una señal digital, no como el LM35, por tanto es menos sensible al ruido. Al ser una señal digital es muy sencillo adquirir esta información por Arduino. Para adquirir esta información lo haremos a través de instrucciones que forman parte de una librería. En el caso de Arduinoblocks estas librerías ya vienen integradas en el bloque que controla al sensor.&lt;/p&gt;
&lt;p&gt;Las precisión y capacidades de medición del DHT11 son pobres:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Medición de temperatura entre 0 a 50, con una precisión de 2ºC&lt;/li&gt;
&lt;li&gt;Medición de humedad entre 20 a 80%, con precisión del 5%&lt;/li&gt;
&lt;li&gt;Frecuencia de muestreo de 1 muestras por segundo (1 Hz)&lt;/li&gt;
&lt;/ul&gt;
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                 <string value=""></string>
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de adquirir del sensor DHT11 (conectado a entrada digital 4 de TDR-Steam) el valor de humedad y temperatura cada segundo y mostrarlo en la pantalla LCD 16x2. Además a través de comunicación serie (Serial plotter) se representarán las gráficas de los valores de humedad y temperatura.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de pantalla LCD.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Conocer y usar Serial plotter.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
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                 <unicode content="true" value="&lt;dl class=&quot;pbl-task-info&quot;&gt;&lt;dt class=&quot;pbl-task-duration&quot;&gt;&lt;span&gt;Duración:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-duration&quot;&gt;30&lt;/dd&gt;&lt;dt class=&quot;pbl-task-participants&quot;&gt;&lt;span&gt;Agrupamiento:&lt;/span&gt;&lt;/dt&gt;&lt;dd class=&quot;pbl-task-participants&quot;&gt;1&lt;/dd&gt;&lt;/dl&gt;&lt;div class=&quot;pbl-task-description&quot;&gt;&lt;p&gt;Se trata de cambiar el color del led RGB (pines digitales 6, 9 y 10) en función de la temperatura del sensor LM35. Si la temperatura está por debajo de 0 ºC se encenderá en color azul intenso. Si la temperatura está entre 0ºC y 20ºC tendrá tonalidades verdes (nada de verde en 0ºC y muy verde en 20ºC). Si la temperatura está entre 20ºC y 40ºC tendrá tonalidades rojas (nada de rojo en 20ºC y muy rojo en 40ºC). Si la temperatura supera los 40ºC se encenderá con color rojo intenso. La temperatura también debe aparecer en la pantalla LCD.&lt;/p&gt;
&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de pantalla LCD.&lt;/li&gt;
&lt;li&gt;Repaso de sensor LM35.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
&lt;li&gt;Repaso de funciones.&lt;/li&gt;
&lt;li&gt;Repaso de led RGB.&lt;/li&gt;
&lt;/ul&gt;&lt;/div&gt;&lt;div class=&quot;iDevice_buttons feedback-button js-required&quot;&gt;&lt;input type=&quot;button&quot; class=&quot;feedbackbutton&quot; value=&quot;Mostrar retroalimentación&quot; /&gt;&lt;/div&gt;&lt;div class=&quot;feedback js-feedback js-hidden&quot;&gt;&lt;p&gt;Código:&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/reto23.png&quot; alt=&quot;reto23&quot; width=&quot;1014&quot; height=&quot;640&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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&lt;p&gt;Objetivos:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Repaso de variables.&lt;/li&gt;
&lt;li&gt;Repaso de condicionales.&lt;/li&gt;
&lt;li&gt;Repaso de comunicación serie.&lt;/li&gt;
&lt;li&gt;Repaso de diodo Led.&lt;/li&gt;
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                 <unicode content="true" value="&lt;div class=&quot;exe-text&quot;&gt;&lt;p&gt;La multitarea consiste en realizar varias tareas a la vez, cada ejecución de una tarea se llama hilo de trabajo. En microcontroladores más potentes que los que lleva arduino es posible porque pueden soportar más de un hilo de trabajo, pero en el de arduino no es posible de forma real, ya que sólo soporta un hilo de trabajo.&lt;/p&gt;
&lt;p&gt;Para conseguir esta multitarea lo que hacemos (a través de una librería) es repartir el tiempo de proceso del microcontrolador en varias tareas, mientra se ejecuta una se paraliza la otra a muy breves espacios de tiempo. De esta manera se da la sensación de multitarea. No debemos olvidar que el microcontrolador de Arduino es muy modesto y no funcioanará correctamente con muchas tareas.&lt;/p&gt;
&lt;p&gt;Esta funcionalidad como todo el entorno de Arduinoblocks se lo debemos a &lt;strong&gt;&lt;em&gt;Juanjo López&lt;/em&gt;&lt;/strong&gt;.&lt;/p&gt;
&lt;p&gt;En el entorno de Arduinoblocks encontramos esta funcionalidad en las herramientas &lt;em&gt;Tiempo &amp;gt; Multi-Tarea&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;&lt;img src=&quot;resources/arduinoblocks_multitarea.png&quot; alt=&quot;multitarea&quot; width=&quot;649&quot; height=&quot;574&quot; /&gt;&lt;/p&gt;&lt;/div&gt;"></unicode>
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         <string value="LOMv1.0"></string>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="uniqueElementName"></string>
      <string value="metaMetadata"></string>
     </dictionary>
    </instance>
    <string role="key" value="relation"></string>
    <list></list>
    <string role="key" value="rights"></string>
    <instance class="exe.engine.lom.lomsubs.rightsSub">
     <dictionary>
      <string role="key" value="access"></string>
      <none></none>
      <string role="key" value="copyrightAndOtherRestrictions"></string>
      <instance class="exe.engine.lom.lomsubs.copyrightAndOtherRestrictionsSub">
       <dictionary>
        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="source"></string>
        <instance class="exe.engine.lom.lomsubs.sourceValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="string"></string>
          <list></list>
          <string role="key" value="uniqueElementName"></string>
          <string value="source"></string>
          <string role="key" value="valueOf_"></string>
          <string value="LOMv1.0"></string>
         </dictionary>
        </instance>
        <string role="key" value="uniqueElementName"></string>
        <string value="copyrightAndOtherRestrictions"></string>
        <string role="key" value="value"></string>
        <instance class="exe.engine.lom.lomsubs.copyrightAndOtherRestrictionsValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <none></none>
          <string role="key" value="uniqueElementName"></string>
          <string value="value"></string>
          <string role="key" value="value"></string>
          <none></none>
          <string role="key" value="valueOf_"></string>
          <string value="yes"></string>
         </dictionary>
        </instance>
       </dictionary>
      </instance>
      <string role="key" value="cost"></string>
      <none></none>
      <string role="key" value="description"></string>
      <none></none>
      <string role="key" value="uniqueElementName"></string>
      <none></none>
     </dictionary>
    </instance>
    <string role="key" value="technical"></string>
    <none></none>
   </dictionary>
  </instance>
  <string role="key" value="lomEs"></string>
  <instance class="exe.engine.lom.lomsubs.lomSub">
   <dictionary>
    <string role="key" value="__index__"></string>
    <dictionary></dictionary>
    <string role="key" value="__oldchild__"></string>
    <none></none>
    <string role="key" value="annotation"></string>
    <list></list>
    <string role="key" value="classification"></string>
    <list></list>
    <string role="key" value="educational"></string>
    <list>
     <instance class="exe.engine.lom.lomsubs.educationalSub">
      <dictionary>
       <string role="key" value="cognitiveProcess"></string>
       <list></list>
       <string role="key" value="context"></string>
       <list>
        <instance class="exe.engine.lom.lomsubs.contextSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <instance class="exe.engine.lom.lomsubs.sourceValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="string"></string>
            <list></list>
            <string role="key" value="uniqueElementName"></string>
            <string value="source"></string>
            <string role="key" value="valueOf_"></string>
            <string value="LOM-ESv1.0"></string>
           </dictionary>
          </instance>
          <string role="key" value="value"></string>
          <instance class="exe.engine.lom.lomsubs.contextValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="source"></string>
            <none></none>
            <string role="key" value="uniqueElementName"></string>
            <string value="value"></string>
            <string role="key" value="value"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="presencial"></string>
           </dictionary>
          </instance>
         </dictionary>
        </instance>
        <instance class="exe.engine.lom.lomsubs.contextSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <instance class="exe.engine.lom.lomsubs.sourceValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="string"></string>
            <list></list>
            <string role="key" value="uniqueElementName"></string>
            <string value="source"></string>
            <string role="key" value="valueOf_"></string>
            <string value="LOM-ESv1.0"></string>
           </dictionary>
          </instance>
          <string role="key" value="value"></string>
          <instance class="exe.engine.lom.lomsubs.contextValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="source"></string>
            <none></none>
            <string role="key" value="uniqueElementName"></string>
            <string value="value"></string>
            <string role="key" value="value"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="classroom"></string>
           </dictionary>
          </instance>
         </dictionary>
        </instance>
       </list>
       <string role="key" value="description"></string>
       <list></list>
       <string role="key" value="difficulty"></string>
       <none></none>
       <string role="key" value="intendedEndUserRole"></string>
       <list>
        <instance class="exe.engine.lom.lomsubs.intendedEndUserRoleSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <instance class="exe.engine.lom.lomsubs.sourceValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="string"></string>
            <list></list>
            <string role="key" value="uniqueElementName"></string>
            <string value="source"></string>
            <string role="key" value="valueOf_"></string>
            <string value="LOM-ESv1.0"></string>
           </dictionary>
          </instance>
          <string role="key" value="value"></string>
          <instance class="exe.engine.lom.lomsubs.intendedEndUserRoleValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="source"></string>
            <none></none>
            <string role="key" value="uniqueElementName"></string>
            <string value="value"></string>
            <string role="key" value="value"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="learner"></string>
           </dictionary>
          </instance>
         </dictionary>
        </instance>
       </list>
       <string role="key" value="interactivityLevel"></string>
       <none></none>
       <string role="key" value="interactivityType"></string>
       <none></none>
       <string role="key" value="language"></string>
       <list>
        <instance class="exe.engine.lom.lomsubs.LanguageIdSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="valueOf_"></string>
          <string value="es"></string>
         </dictionary>
        </instance>
       </list>
       <string role="key" value="learningResourceType"></string>
       <list></list>
       <string role="key" value="semanticDensity"></string>
       <none></none>
       <string role="key" value="typicalAgeRange"></string>
       <list></list>
       <string role="key" value="typicalLearningTime"></string>
       <none></none>
      </dictionary>
     </instance>
    </list>
    <string role="key" value="general"></string>
    <instance class="exe.engine.lom.lomsubs.generalSub">
     <dictionary>
      <string role="key" value="aggregationLevel"></string>
      <instance class="exe.engine.lom.lomsubs.aggregationLevelSub">
       <dictionary>
        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="source"></string>
        <instance class="exe.engine.lom.lomsubs.sourceValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="string"></string>
          <list></list>
          <string role="key" value="uniqueElementName"></string>
          <string value="source"></string>
          <string role="key" value="valueOf_"></string>
          <string value="LOM-ESv1.0"></string>
         </dictionary>
        </instance>
        <string role="key" value="uniqueElementName"></string>
        <string value="aggregationLevel"></string>
        <string role="key" value="value"></string>
        <instance class="exe.engine.lom.lomsubs.aggregationLevelValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <none></none>
          <string role="key" value="uniqueElementName"></string>
          <string value="value"></string>
          <string role="key" value="value"></string>
          <none></none>
          <string role="key" value="valueOf_"></string>
          <string value="2"></string>
         </dictionary>
        </instance>
       </dictionary>
      </instance>
      <string role="key" value="coverage"></string>
      <list></list>
      <string role="key" value="description"></string>
      <list></list>
      <string role="key" value="identifier"></string>
      <list>
       <instance class="exe.engine.lom.lomsubs.identifierSub">
        <dictionary>
         <string role="key" value="catalog"></string>
         <instance class="exe.engine.lom.lomsubs.catalogSub">
          <dictionary>
           <string role="key" value="uniqueElementName"></string>
           <string value="catalog"></string>
           <string role="key" value="valueOf_"></string>
           <unicode value="My Catalog"></unicode>
          </dictionary>
         </instance>
         <string role="key" value="entry"></string>
         <instance class="exe.engine.lom.lomsubs.entrySub">
          <dictionary>
           <string role="key" value="uniqueElementName"></string>
           <string value="entry"></string>
           <string role="key" value="valueOf_"></string>
           <unicode value="4a7d755e-34a5-410a-a7d4-601881136623"></unicode>
          </dictionary>
         </instance>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="keyword"></string>
      <list></list>
      <string role="key" value="language"></string>
      <list>
       <instance class="exe.engine.lom.lomsubs.LanguageIdSub">
        <dictionary>
         <string role="key" value="extensiontype_"></string>
         <none></none>
         <string role="key" value="valueOf_"></string>
         <string value="es"></string>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="structure"></string>
      <none></none>
      <string role="key" value="title"></string>
      <instance class="exe.engine.lom.lomsubs.titleSub">
       <dictionary>
        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="string"></string>
        <list>
         <instance class="exe.engine.lom.lomsubs.LangStringSub">
          <dictionary>
           <string role="key" value="language"></string>
           <string value="es"></string>
           <string role="key" value="valueOf_"></string>
           <string value="Sistemas de control autom\xc3\xa1ticos programados con Arduino + TDR-Steam + Arduinoblocks"></string>
          </dictionary>
         </instance>
        </list>
        <string role="key" value="uniqueElementName"></string>
        <none></none>
       </dictionary>
      </instance>
      <string role="key" value="uniqueElementName"></string>
      <string value="general"></string>
     </dictionary>
    </instance>
    <string role="key" value="lifeCycle"></string>
    <instance class="exe.engine.lom.lomsubs.lifeCycleSub">
     <dictionary>
      <string role="key" value="contribute"></string>
      <list>
       <instance class="exe.engine.lom.lomsubs.contributeSub">
        <dictionary>
         <string role="key" value="date"></string>
         <instance class="exe.engine.lom.lomsubs.dateSub">
          <dictionary>
           <string role="key" value="dateTime"></string>
           <instance class="exe.engine.lom.lomsubs.DateTimeValueSub">
            <dictionary>
             <string role="key" value="uniqueElementName"></string>
             <string value="dateTime"></string>
             <string role="key" value="valueOf_"></string>
             <string value="2021-11-26T21:21:45.00+01:00"></string>
            </dictionary>
           </instance>
           <string role="key" value="description"></string>
           <instance class="exe.engine.lom.lomsubs.LanguageStringSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="string"></string>
             <list>
              <instance class="exe.engine.lom.lomsubs.LangStringSub">
               <dictionary>
                <string role="key" value="language"></string>
                <string value="es"></string>
                <string role="key" value="valueOf_"></string>
                <string value="Fecha de creaci\xc3\xb3n de los metadatos"></string>
               </dictionary>
              </instance>
             </list>
            </dictionary>
           </instance>
           <string role="key" value="extensiontype_"></string>
           <none></none>
           <string role="key" value="uniqueElementName"></string>
           <none></none>
           <string role="key" value="valueOf_"></string>
           <none></none>
          </dictionary>
         </instance>
         <string role="key" value="entity"></string>
         <list>
          <instance class="exe.engine.lom.lomsubs.entitySub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="BEGIN:VCARD VERSION:3.0 FN:Pedro Ruiz Fern\xc3\xa1ndez EMAIL;TYPE=INTERNET: ORG: END:VCARD"></string>
           </dictionary>
          </instance>
         </list>
         <string role="key" value="role"></string>
         <instance class="exe.engine.lom.lomsubs.roleSub">
          <dictionary>
           <string role="key" value="extensiontype_"></string>
           <none></none>
           <string role="key" value="source"></string>
           <instance class="exe.engine.lom.lomsubs.sourceValueSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="string"></string>
             <list></list>
             <string role="key" value="uniqueElementName"></string>
             <string value="source"></string>
             <string role="key" value="valueOf_"></string>
             <string value="LOM-ESv1.0"></string>
            </dictionary>
           </instance>
           <string role="key" value="uniqueElementName"></string>
           <string value="role"></string>
           <string role="key" value="value"></string>
           <instance class="exe.engine.lom.lomsubs.roleValueSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="source"></string>
             <none></none>
             <string role="key" value="uniqueElementName"></string>
             <string value="value"></string>
             <string role="key" value="value"></string>
             <none></none>
             <string role="key" value="valueOf_"></string>
             <string value="author"></string>
            </dictionary>
           </instance>
          </dictionary>
         </instance>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="status"></string>
      <none></none>
      <string role="key" value="uniqueElementName"></string>
      <none></none>
      <string role="key" value="version"></string>
      <none></none>
     </dictionary>
    </instance>
    <string role="key" value="metaMetadata"></string>
    <instance class="exe.engine.lom.lomsubs.metaMetadataSub">
     <dictionary>
      <string role="key" value="contribute"></string>
      <list>
       <instance class="exe.engine.lom.lomsubs.contributeMetaSub">
        <dictionary>
         <string role="key" value="date"></string>
         <instance class="exe.engine.lom.lomsubs.dateSub">
          <dictionary>
           <string role="key" value="dateTime"></string>
           <instance class="exe.engine.lom.lomsubs.DateTimeValueSub">
            <dictionary>
             <string role="key" value="uniqueElementName"></string>
             <string value="dateTime"></string>
             <string role="key" value="valueOf_"></string>
             <string value="2021-10-29T08:00:04.00+02:00"></string>
            </dictionary>
           </instance>
           <string role="key" value="description"></string>
           <instance class="exe.engine.lom.lomsubs.LanguageStringSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="string"></string>
             <list>
              <instance class="exe.engine.lom.lomsubs.LangStringSub">
               <dictionary>
                <string role="key" value="language"></string>
                <string value="es"></string>
                <string role="key" value="valueOf_"></string>
                <string value="Fecha de creaci\xc3\xb3n de los metadatos"></string>
               </dictionary>
              </instance>
             </list>
            </dictionary>
           </instance>
           <string role="key" value="extensiontype_"></string>
           <none></none>
           <string role="key" value="uniqueElementName"></string>
           <none></none>
           <string role="key" value="valueOf_"></string>
           <none></none>
          </dictionary>
         </instance>
         <string role="key" value="entity"></string>
         <list>
          <instance class="exe.engine.lom.lomsubs.entitySub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="BEGIN:VCARD VERSION:3.0 FN:Pedro Ruiz Fern\xc3\xa1ndez EMAIL;TYPE=INTERNET: ORG: END:VCARD"></string>
           </dictionary>
          </instance>
         </list>
         <string role="key" value="role"></string>
         <instance class="exe.engine.lom.lomsubs.roleSub">
          <dictionary>
           <string role="key" value="extensiontype_"></string>
           <none></none>
           <string role="key" value="source"></string>
           <instance class="exe.engine.lom.lomsubs.sourceValueSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="string"></string>
             <list></list>
             <string role="key" value="uniqueElementName"></string>
             <string value="source"></string>
             <string role="key" value="valueOf_"></string>
             <string value="LOM-ESv1.0"></string>
            </dictionary>
           </instance>
           <string role="key" value="uniqueElementName"></string>
           <string value="role"></string>
           <string role="key" value="value"></string>
           <instance class="exe.engine.lom.lomsubs.roleValueSub">
            <dictionary>
             <string role="key" value="extensiontype_"></string>
             <none></none>
             <string role="key" value="source"></string>
             <none></none>
             <string role="key" value="uniqueElementName"></string>
             <string value="value"></string>
             <string role="key" value="value"></string>
             <none></none>
             <string role="key" value="valueOf_"></string>
             <string value="creator"></string>
            </dictionary>
           </instance>
          </dictionary>
         </instance>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="identifier"></string>
      <list></list>
      <string role="key" value="language"></string>
      <instance class="exe.engine.lom.lomsubs.LanguageIdSub">
       <dictionary>
        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="valueOf_"></string>
        <string value="es"></string>
       </dictionary>
      </instance>
      <string role="key" value="metadataSchema"></string>
      <list>
       <instance class="exe.engine.lom.lomsubs.metadataSchemaSub">
        <dictionary>
         <string role="key" value="valueOf_"></string>
         <string value="LOM-ESv1.0"></string>
        </dictionary>
       </instance>
      </list>
      <string role="key" value="uniqueElementName"></string>
      <string value="metaMetadata"></string>
     </dictionary>
    </instance>
    <string role="key" value="relation"></string>
    <list></list>
    <string role="key" value="rights"></string>
    <instance class="exe.engine.lom.lomsubs.rightsSub">
     <dictionary>
      <string role="key" value="access"></string>
      <instance class="exe.engine.lom.lomsubs.accessSub">
       <dictionary>
        <string role="key" value="accessType"></string>
        <instance class="exe.engine.lom.lomsubs.accessTypeSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <instance class="exe.engine.lom.lomsubs.sourceValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="string"></string>
            <list></list>
            <string role="key" value="uniqueElementName"></string>
            <string value="source"></string>
            <string role="key" value="valueOf_"></string>
            <string value="LOM-ESv1.0"></string>
           </dictionary>
          </instance>
          <string role="key" value="uniqueElementName"></string>
          <string value="accessType"></string>
          <string role="key" value="value"></string>
          <instance class="exe.engine.lom.lomsubs.accessTypeValueSub">
           <dictionary>
            <string role="key" value="extensiontype_"></string>
            <none></none>
            <string role="key" value="source"></string>
            <none></none>
            <string role="key" value="uniqueElementName"></string>
            <string value="value"></string>
            <string role="key" value="value"></string>
            <none></none>
            <string role="key" value="valueOf_"></string>
            <string value="universal"></string>
           </dictionary>
          </instance>
         </dictionary>
        </instance>
        <string role="key" value="description"></string>
        <instance class="exe.engine.lom.lomsubs.LanguageStringSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="string"></string>
          <list>
           <instance class="exe.engine.lom.lomsubs.LangStringSub">
            <dictionary>
             <string role="key" value="language"></string>
             <string value="en"></string>
             <string role="key" value="valueOf_"></string>
             <unicode value="Default"></unicode>
            </dictionary>
           </instance>
          </list>
         </dictionary>
        </instance>
        <string role="key" value="uniqueElementName"></string>
        <string value="access"></string>
       </dictionary>
      </instance>
      <string role="key" value="copyrightAndOtherRestrictions"></string>
      <instance class="exe.engine.lom.lomsubs.copyrightAndOtherRestrictionsSub">
       <dictionary>
        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="source"></string>
        <instance class="exe.engine.lom.lomsubs.sourceValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="string"></string>
          <list></list>
          <string role="key" value="uniqueElementName"></string>
          <string value="source"></string>
          <string role="key" value="valueOf_"></string>
          <string value="LOM-ESv1.0"></string>
         </dictionary>
        </instance>
        <string role="key" value="uniqueElementName"></string>
        <string value="copyrightAndOtherRestrictions"></string>
        <string role="key" value="value"></string>
        <instance class="exe.engine.lom.lomsubs.copyrightAndOtherRestrictionsValueSub">
         <dictionary>
          <string role="key" value="extensiontype_"></string>
          <none></none>
          <string role="key" value="source"></string>
          <none></none>
          <string role="key" value="uniqueElementName"></string>
          <string value="value"></string>
          <string role="key" value="value"></string>
          <none></none>
          <string role="key" value="valueOf_"></string>
          <string value="creative commons: attribution - share alike"></string>
         </dictionary>
        </instance>
       </dictionary>
      </instance>
      <string role="key" value="cost"></string>
      <none></none>
      <string role="key" value="description"></string>
      <none></none>
      <string role="key" value="uniqueElementName"></string>
      <string value="rights"></string>
     </dictionary>
    </instance>
    <string role="key" value="technical"></string>
    <none></none>
   </dictionary>
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