{"id":3553,"date":"2021-05-12T21:28:02","date_gmt":"2021-05-12T21:28:02","guid":{"rendered":"https:\/\/blogs.etsii.urjc.es\/dseytr\/?p=3553"},"modified":"2021-05-12T21:28:04","modified_gmt":"2021-05-12T21:28:04","slug":"dispensador-de-gel-automatico-con-arduino","status":"publish","type":"post","link":"https:\/\/blogs.etsii.urjc.es\/dseytr\/dispensador-de-gel-automatico-con-arduino\/","title":{"rendered":"Dispensador de gel autom\u00e1tico con Arduino"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"567\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image.png\" alt=\"\" class=\"wp-image-3555\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image.png 378w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-200x300.png 200w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Introducci\u00f3n<\/h2>\n\n\n\n<p class=\"has-text-align-left\">El objetivo de esta pr\u00e1ctica es dise\u00f1ar e implementar un sistema empotrado y de tiempo real.<\/p>\n\n\n\n<p class=\"has-text-align-left\">Para cumplir dicho objetivo, nuestro equipo ha dise\u00f1ado e implementado un dispensador de jab\u00f3n autom\u00e1tico. La idea surge a partir de la situaci\u00f3n actual relativa a la pandemia provocada por el COVID-19, ya que nos parece deseable que existan este tipo de dispensadores autom\u00e1ticos que no obligan a que las personas deban presionarlo y mantener un contacto con el mismo que pueda suponer un riesgo de contagio (sobre todo, si el dispensador est\u00e1 colocado en un sitio p\u00fablico).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Descripci\u00f3n del proyecto<\/h2>\n\n\n\n<p>Nuestro proyecto consiste en una estructura que act\u00faa como soporte de un dispensador de jab\u00f3n l\u00edquido. Puede ser un dispensador cualquiera siempre y cuando cumpla con las dimensiones del soporte. Dicho soporte cuenta con un circuito incorporado que automatiza el funcionamiento de un pist\u00f3n que presiona autom\u00e1ticamente la boquilla del dispensador cuando los sensores detectan que una persona acerca sus manos para recibir gel. Adem\u00e1s, el soporte cuenta con dos luces LED, una verde y otra roja, que indican cu\u00e1ndo el mecanismo est\u00e1 listo para funcionar y expulsar gel (verde) o cu\u00e1ndo hay que esperar (rojo).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Materiales empleados<\/h2>\n\n\n\n<p>A continuaci\u00f3n, se proporcionan fotograf\u00edas de algunos de los materiales destacados empleados:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Tablero, bote de jab\u00f3n, pist\u00f3n, tap\u00f3n PVC<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"336\" height=\"387\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-1.png\" alt=\"\" class=\"wp-image-3557\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-1.png 336w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-1-260x300.png 260w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/a><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Rel\u00e9s<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"315\" height=\"363\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-2.png\" alt=\"\" class=\"wp-image-3559\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-2.png 315w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-2-260x300.png 260w\" sizes=\"auto, (max-width: 315px) 100vw, 315px\" \/><\/a><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Tubo de PVC de 160 mm de di\u00e1metro<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"196\" height=\"405\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-3.png\" alt=\"\" class=\"wp-image-3561\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-3.png 196w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-3-145x300.png 145w\" sizes=\"auto, (max-width: 196px) 100vw, 196px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Herramientas empleadas<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>TACKLIFE Mini Amoladora (mini dremel)<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-4.png\"><img loading=\"lazy\" decoding=\"async\" width=\"506\" height=\"433\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-4.png\" alt=\"\" class=\"wp-image-3562\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-4.png 506w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-4-300x257.png 300w\" sizes=\"auto, (max-width: 506px) 100vw, 506px\" \/><\/a><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Pistola de calor<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"377\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-5.png\" alt=\"\" class=\"wp-image-3563\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-5.png 566w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-5-300x200.png 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/a><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Segueta, soldador de esta\u00f1o, alicates<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-6.png\"><img loading=\"lazy\" decoding=\"async\" width=\"498\" height=\"384\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-6.png\" alt=\"\" class=\"wp-image-3565\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-6.png 498w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-6-300x231.png 300w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/><\/a><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Serrucho, pistola de silicona caliente, papel de lija, lija el\u00e9ctrica<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-7.png\"><img loading=\"lazy\" decoding=\"async\" width=\"497\" height=\"428\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-7.png\" alt=\"\" class=\"wp-image-3566\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-7.png 497w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-7-300x258.png 300w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Presupuesto<\/h2>\n\n\n\n<p>Los materiales que ya pose\u00edamos no se han contabilizado en el presupuesto, aunque s\u00ed que se enumeran.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Herramientas<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Unidades<\/strong><\/td><td><strong>Nombre del producto<\/strong><\/td><td><strong>Precio (\u20ac\/unidad)<\/strong><\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Soldador de esta\u00f1o tipo l\u00e1piz de 30W<\/td><td>8,90<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>TACKLIFE Mini Amoladora (mini dremel)<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Segueta<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Alicates<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Serrucho<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Pistola de calor<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Papel de lija<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Lija el\u00e9ctrica<\/td><td>&#8211;<\/td><\/tr><tr><td><\/td><td>Total<\/td><td>8,90<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Materiales<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Unidades<\/strong><\/td><td><strong>Nombre del producto<\/strong><\/td><td><strong>Precio (\u20ac\/unidad)<\/strong><\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Placa Arduino UNO<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Sensor de ultrasonidos<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Led verde<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Led rojo<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>2<\/strong><\/td><td>Resistencia (220K\u03a9)<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>2<\/strong><\/td><td>Breadboard (peque\u00f1o)<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Actuador lineal: Hilitand 35mm Stroke Heavy Duty 1000N Actuador el\u00e9ctrico Motor de elevaci\u00f3n el\u00e9ctrico DC 12V Empuje el\u00e9ctrico Rod<\/td><td>28,99<\/td><\/tr><tr><td><strong>2<\/strong><\/td><td>Rel\u00e9 de un canal de 5V<\/td><td>2,90<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Tubo de esta\u00f1o (20 g)<\/td><td>2,00<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Tubo PVC multicapa (\u00d8160 mm)<\/td><td>15,90<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Limpiador desengrasante tuber\u00edas PVC (500 ml)<\/td><td>3,80<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Adhesivo PVC para pl\u00e1sticos r\u00edgidos (125 ml)<\/td><td>1,55<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Tap\u00f3n PVC ciego (\u00d8160 mm)<\/td><td>2,45<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>mtn Spray Hardcore azul avatar (400 ml)<\/td><td>5,95<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>mtn Spray Hardcore blanco divinidad (400 ml)<\/td><td>5,95<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>Tablero contrachapado 80 cm x 40 cm x 5 mm<\/td><td>4,89<\/td><\/tr><tr><td><strong>&#8211;<\/strong><\/td><td>Componentes reciclados varios<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>&#8211;<\/strong><\/td><td>Cinta de doble cara<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>&#8211;<\/strong><\/td><td>Cinta de carrocero<\/td><td>&#8211;<\/td><\/tr><tr><td><strong>&nbsp;<\/strong><\/td><td>Total<\/td><td>77,28<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Total: 86,18 \u20ac<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dise\u00f1o del circuito<\/h2>\n\n\n\n<p>El circuito se plante\u00f3 en dos partes: por una parte, tenemos el sensor de distancia que tomar\u00e1 la distancia hasta el objeto m\u00e1s cercano y los LEDs que indicar\u00e1n la disponibilidad del sistema (si est\u00e1 disponible o no para expulsar jab\u00f3n); por otra parte, tenemos el circuito del actuador: cuenta con dos rel\u00e9s que nos permiten invertir la polaridad de los cables del pist\u00f3n para que se contraiga o se extienda seg\u00fan se detecta o no un objeto a menos distancia de la determinada.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-8.png\"><img loading=\"lazy\" decoding=\"async\" width=\"419\" height=\"383\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-8.png\" alt=\"\" class=\"wp-image-3575\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-8.png 419w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-8-300x274.png 300w\" sizes=\"auto, (max-width: 419px) 100vw, 419px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-9.png\"><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"189\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-9.png\" alt=\"\" class=\"wp-image-3576\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-9.png 378w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-9-300x150.png 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Montaje del soporte<\/h2>\n\n\n\n<p>En esta secci\u00f3n se mostrar\u00e1n los pasos seguidos para montar la estructura del dispensador de gel de forma resumida, el montaje del soporte se describe m\u00e1s detalladamente en el v\u00eddeo.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">0. Planteamiento inicial<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-10.png\"><img loading=\"lazy\" decoding=\"async\" width=\"441\" height=\"670\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-10.png\" alt=\"\" class=\"wp-image-3582\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-10.png 441w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-10-197x300.png 197w\" sizes=\"auto, (max-width: 441px) 100vw, 441px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">1. Construcci\u00f3n de la base y la estructura exterior<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-11.png\"><img loading=\"lazy\" decoding=\"async\" width=\"341\" height=\"267\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-11.png\" alt=\"\" class=\"wp-image-3585\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-11.png 341w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-11-300x235.png 300w\" sizes=\"auto, (max-width: 341px) 100vw, 341px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-12.png\"><img loading=\"lazy\" decoding=\"async\" width=\"235\" height=\"418\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-12.png\" alt=\"\" class=\"wp-image-3586\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-12.png 235w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-12-169x300.png 169w\" sizes=\"auto, (max-width: 235px) 100vw, 235px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13.png\"><img loading=\"lazy\" decoding=\"async\" width=\"303\" height=\"306\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13.png\" alt=\"\" class=\"wp-image-3587\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13.png 303w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13-297x300.png 297w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13-150x150.png 150w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-13-80x80.png 80w\" sizes=\"auto, (max-width: 303px) 100vw, 303px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-14.png\"><img loading=\"lazy\" decoding=\"async\" width=\"290\" height=\"373\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-14.png\" alt=\"\" class=\"wp-image-3588\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-14.png 290w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-14-233x300.png 233w\" sizes=\"auto, (max-width: 290px) 100vw, 290px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-15.png\"><img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"792\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-15.png\" alt=\"\" class=\"wp-image-3590\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-15.png 446w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-15-169x300.png 169w\" sizes=\"auto, (max-width: 446px) 100vw, 446px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">2. Incorporaci\u00f3n del circuito<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-16.png\"><img loading=\"lazy\" decoding=\"async\" width=\"454\" height=\"241\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-16.png\" alt=\"\" class=\"wp-image-3592\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-16.png 454w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-16-300x159.png 300w\" sizes=\"auto, (max-width: 454px) 100vw, 454px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-17.png\"><img loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"933\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-17.png\" alt=\"\" class=\"wp-image-3593\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-17.png 525w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-17-169x300.png 169w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">3. Agujeros y mecanizados<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-18.png\"><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"297\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-18.png\" alt=\"\" class=\"wp-image-3595\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-18.png 378w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-18-300x236.png 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-19.png\"><img loading=\"lazy\" decoding=\"async\" width=\"344\" height=\"365\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-19.png\" alt=\"\" class=\"wp-image-3597\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-19.png 344w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-19-283x300.png 283w\" sizes=\"auto, (max-width: 344px) 100vw, 344px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-20.png\"><img loading=\"lazy\" decoding=\"async\" width=\"313\" height=\"412\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-20.png\" alt=\"\" class=\"wp-image-3598\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-20.png 313w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-20-228x300.png 228w\" sizes=\"auto, (max-width: 313px) 100vw, 313px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">4. Pegado<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-21.png\"><img loading=\"lazy\" decoding=\"async\" width=\"355\" height=\"549\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-21.png\" alt=\"\" class=\"wp-image-3600\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-21.png 355w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-21-194x300.png 194w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-22.png\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"790\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-22.png\" alt=\"\" class=\"wp-image-3601\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-22.png 566w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-22-215x300.png 215w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-23.png\"><img loading=\"lazy\" decoding=\"async\" width=\"406\" height=\"731\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-23.png\" alt=\"\" class=\"wp-image-3602\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-23.png 406w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-23-167x300.png 167w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-25.png\"><img loading=\"lazy\" decoding=\"async\" width=\"522\" height=\"810\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-25.png\" alt=\"\" class=\"wp-image-3608\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-25.png 522w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-25-193x300.png 193w\" sizes=\"auto, (max-width: 522px) 100vw, 522px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">5. Montaje del pulsador<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-26.png\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"215\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-26.png\" alt=\"\" class=\"wp-image-3610\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-26.png 566w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-26-300x114.png 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-27.png\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"330\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-27.png\" alt=\"\" class=\"wp-image-3611\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-27.png 566w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-27-300x175.png 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/a><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">6. Pintura<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-28.png\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"318\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-28.png\" alt=\"\" class=\"wp-image-3613\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-28.png 566w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-28-300x169.png 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-29.png\"><img loading=\"lazy\" decoding=\"async\" width=\"549\" height=\"933\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-29.png\" alt=\"\" class=\"wp-image-3614\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-29.png 549w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-29-177x300.png 177w\" sizes=\"auto, (max-width: 549px) 100vw, 549px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-30.png\"><img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"879\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-30.png\" alt=\"\" class=\"wp-image-3616\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-30.png 567w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-30-194x300.png 194w\" sizes=\"auto, (max-width: 567px) 100vw, 567px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-31.png\"><img loading=\"lazy\" decoding=\"async\" width=\"430\" height=\"290\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-31.png\" alt=\"\" class=\"wp-image-3617\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-31.png 430w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-31-300x202.png 300w\" sizes=\"auto, (max-width: 430px) 100vw, 430px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-32.png\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"407\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-32.png\" alt=\"\" class=\"wp-image-3618\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-32.png 250w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-32-184x300.png 184w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-33.png\"><img loading=\"lazy\" decoding=\"async\" width=\"247\" height=\"407\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-33.png\" alt=\"\" class=\"wp-image-3620\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-33.png 247w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-33-182x300.png 182w\" sizes=\"auto, (max-width: 247px) 100vw, 247px\" \/><\/a><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-34.png\"><img loading=\"lazy\" decoding=\"async\" width=\"437\" height=\"700\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2021\/05\/image-34.png\" alt=\"\" class=\"wp-image-3621\" srcset=\"https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-34.png 437w, https:\/\/blogs.etsii.urjc.es\/dseytr\/wp-content\/uploads\/sites\/8\/2021\/05\/image-34-187x300.png 187w\" sizes=\"auto, (max-width: 437px) 100vw, 437px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3digo<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>#define PIN_TRIG 12\n#define PIN_ECHO 11\nconst int pinRelayA = 8;\nconst int pinRelayB = 9;\nconst int ledRojo = 4;\nconst int ledVerde = 6;\nlong duracion,cm;\n\n\/\/Encender el relay A y apagar el B\n\/\/esto extender\u00e1 el actuador\nvoid extendActuator()\n{\n   digitalWrite(pinRelayB, LOW);\n   delay(250);\n   digitalWrite(pinRelayA, HIGH);\n}\n\/\/Apagar el relay A y encender el B \n\/\/esto retraer\u00e1 el actuador \nvoid retractActuator()\n{\n   digitalWrite(pinRelayA, LOW);\n   delay(250);\n   digitalWrite(pinRelayB, HIGH);\n}\n\/\/Apagar ambos relays\n\/\/Esto frena el actuador\nvoid stopActuator()\n{\n   digitalWrite(pinRelayA, LOW);\n   digitalWrite(pinRelayB, LOW);\n}\n\nvoid setup(){\n  Serial.begin(9600);\/\/Se habilita el monitor serie\n  pinMode(PIN_TRIG,OUTPUT);\/\/Se define el puerto de salida hacia el HC SR 04\n  pinMode(PIN_ECHO,INPUT);\/\/Se define el puerto de entrada desde el HC SR 04\n\n     \/\/ establecer los pines de los relays\n   pinMode(pinRelayA, OUTPUT);\n   pinMode(pinRelayB, OUTPUT);\n   \/\/ establecer los relays a LOW\n   digitalWrite(pinRelayA, LOW);\n   digitalWrite(pinRelayB, LOW);\n   \/\/ inicializar leds\n   pinMode(ledVerde, OUTPUT);\n   pinMode(ledRojo, OUTPUT);\n   digitalWrite(ledRojo, LOW);\n   digitalWrite(ledVerde, HIGH);\n}\n\nvoid loop(){\n  digitalWrite(PIN_TRIG,LOW);\n  delayMicroseconds(5);\n  digitalWrite(PIN_TRIG,HIGH); \/\/ Se lanza una r\u00e1faga de ultrasonidos por el sensor de ultrasonidos\n  delayMicroseconds(10);\n  digitalWrite(PIN_TRIG,LOW); \n  duracion = pulseIn(PIN_ECHO,HIGH); \/\/ Devuelve el tiempo que ha tardado en volver la r\u00e1faga\n  cm = (duracion\/2)\/29.1; \/\/ Convertir el tiempo en distancia hasta el objeto cercano\n  Serial.println(cm); \/\/ Mostramos la distancia por el monitor serie para hacer pruebas\n  if(cm &lt;= 5){ \n    \/\/ Se ha detectado una mano cerca\n    digitalWrite(ledVerde, LOW); \/\/ apagar el led verde\n    digitalWrite(ledRojo, HIGH); \/\/ encender el led rojo: el sistema est\u00e1 funcionando\n    retractActuator(); \/\/ El pist\u00f3n se contrae y aprieta el bote \n    delay(15000); \/\/ Tiempo que tarda en contraerse el actuador hasta la posici\u00f3n deseada\n    stopActuator(); \/\/ El pist\u00f3n deja de contraerse\n    extendActuator(); \/\/ El pist\u00f3n se extiende para volver a su posici\u00f3n inicial \n    delay(17000); \/\/ Tiempo que tarda en extenderse el actuador\n    stopActuator();\n    delay(1000);\n    digitalWrite(ledRojo, LOW); \/\/ apagar el led rojo\n    digitalWrite(ledVerde, HIGH); \/\/ encender el led verde: el sistema est\u00e1 listo de nuevo\n  }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Posibles mejoras<\/h2>\n\n\n\n<p>Debido a las limitaciones encontradas en lo relativo a la capacidad de Arduino UNO para incorporar un gran n\u00famero de componentes, nos hemos visto obligados a descartar algunas funcionalidades de nuestro proyecto. Estas ideas se enumerar\u00e1n a continuaci\u00f3n a modo de posible mejora en un proyecto futuro que contase con una placa m\u00e1s avanzada (por ejemplo, la placa Arduino MEGA 2560):<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Circuito con un contador incorporado que contase la cantidad de veces que se ha accionado el mecanismo y cu\u00e1ntas veces m\u00e1s se puede accionar sin que el contenido del dispensador se vac\u00ede. Adem\u00e1s, se podr\u00eda incorporar un peque\u00f1o altavoz o zumbador que avisasen cuando esto pasase.<\/li><\/ul>\n\n\n\n<p>Adem\u00e1s, la estructura y funcionamiento del sistema tambi\u00e9n se puede mejorar incorporando los siguientes cambios:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Conseguir un pist\u00f3n m\u00e1s peque\u00f1o y fuerte para presionar m\u00e1s r\u00e1pido el disipador.<\/li><li>Conseguir componentes espec\u00edficos, circuitos integrados personalizados o ASICs de tal forma que se pueda reducir el espacio que ocupan los circuitos en nuestro proyecto actual, y que el tama\u00f1o general de la estructura sea menor.<\/li><li>Mejorar el sistema de ventilaci\u00f3n.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00eddeo<\/h2>\n\n\n\n<p>En este v\u00eddeo, describimos en profundidad el proyecto: circuito, software y montaje. 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Para cumplir dicho objetivo, nuestro equipo ha dise\u00f1ado e implementado un dispensador de jab\u00f3n autom\u00e1tico. La idea&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3553","post","type-post","status-publish","format-standard","hentry","category-proyectos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dispensador de gel autom\u00e1tico con Arduino - Proyectos con Arduino.<\/title>\n<meta name=\"description\" content=\"El objetivo de esta pr\u00e1ctica es dise\u00f1ar e implementar un SEyTR. 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