{"id":7119,"date":"2022-11-28T01:47:15","date_gmt":"2022-11-28T01:47:15","guid":{"rendered":"https:\/\/rogerbit.com\/wprb\/?p=7119"},"modified":"2022-11-28T01:47:15","modified_gmt":"2022-11-28T01:47:15","slug":"decodificador-dtmf","status":"publish","type":"post","link":"https:\/\/rogerbit.com\/wprb\/2022\/11\/decodificador-dtmf\/","title":{"rendered":"Decodificador DTMF con circuitos integrados (Incluye circuito impreso)"},"content":{"rendered":"

<\/iframe><\/p>\n<hr \/>\n<p>PCB barato y r\u00e1pido, impresi\u00f3n 3D, mecanizado CNC y servicios de fabricaci\u00f3n de PCBWay: <a href=\"https:\/\/www.pcbway.com\/setinvite.aspx?inviteid=318610\">https:\/\/www.pcbway.com\/setinvite.aspx?inviteid=318610<\/a><\/p>\n<p>En este tutorial veremos como hacer un control de luces, motores o bombas de agua, por radiofrecuencia con handy, y circuitos integrados como el mt8870 y el dm74ls154n Mediante tonos dtmf que ser\u00e1n transmitidos al pulsar una tecla del handy, est\u00e1 ser\u00e1 decodificada por el circuito integrado mt8870 y el circuito integrado dm74ls154n. Todo esto lo vamos a armar en un circuito impreso (PCB).<\/p>\n<p>En este video vamos a ver el decodificador DTMF con circuitos integrados, el cual si bien est\u00e1 hecho a medida, es posible encontrarlo en PCBWay.es. El decodificador es un perfecto ejemplo de c\u00f3mo poder integrar circuitos el\u00e9ctricos en un mismo PCB, algo que podr\u00edamos llamar una soluci\u00f3n “integral” a la hora de montar un decodificador DTMF.<\/p>\n<p>No te pierdas ning\u00fan video m\u00e1s suscr\u00edbete a nuestro canal de telegram <a href=\"https:\/\/t.me\/carlosvolt_electronica_robotica\">https:\/\/t.me\/carlosvolt_electronica_robotica<\/a><\/p>\n<hr \/>\n<p style=\"text-align: left;\">Tal vez pueda interesarte proyectos en arduino, pic, rob\u00f3tica, telecomunicaciones, suscribete en\u00a0<a href=\"http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1\">http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1<\/a>\u00a0mucho videos con c\u00f3digo fuentes completos y diagramas<\/p>\n<p style=\"text-align: left;\"><div id=\"ubm-banners-rotation-n1\" data-interval=\"4000\" class=\"ubm_banners_rotation\" style=\"overflow: hidden; width: 200px; height: 150px;\"><div id=\"3_ubm_banner\" class=\"ubm_rotating_banner\"><a href=\"https:\/\/bit.ly\/3aXRDAu\" target=\"_blank\" rel=\"dofollow\"><img src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/useful_banner_manager_banners\/3-2-logo youtube.png\" width=\"100%\" height=\"100%\" alt=\"SUSCRIBETE A NUESTRO CANAL DE YOUTUBE, TUTORIALES GRATIS\" \/><\/a><\/div><\/div><\/p>\n<hr \/>\n<p><strong>Componentes electr\u00f3nicos<\/strong><\/p>\n<p><strong>Un cristal de 3,58 MHz<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7120 size-medium\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/3.58mhz-240x300.png\" alt=\"\" width=\"240\" height=\"300\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/3.58mhz-240x300.png 240w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/3.58mhz.png 464w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><\/p>\n<hr \/>\n<p><strong>Dos resistores de 100 Kohm<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7121 size-thumbnail\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/100k-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/100k-150x150.jpg 150w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/100k-300x300.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/100k.jpg 700w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/p>\n<hr \/>\n<p><strong>Dos capacitores de disco cer\u00e1mico de 0,1 uF<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7122 size-thumbnail\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/104-1-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/104-1-150x150.jpg 150w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/104-1-300x300.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/104-1.jpg 500w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/p>\n<hr \/>\n<p><strong>Un resistor de 330 Kohm o de 300 Kohm<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7124 \" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/330k-300x157.jpg\" alt=\"\" width=\"224\" height=\"117\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/330k-300x157.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/330k.jpg 500w\" sizes=\"(max-width: 224px) 100vw, 224px\" \/><\/p>\n<hr \/>\n<p><strong>Un resistor de 470 Ohm<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7125 size-thumbnail\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/470-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/p>\n<hr \/>\n<p><strong>Circuito integrado DM75LS154N<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-6835\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/dm74ls154n.jpg\" sizes=\"(max-width: 225px) 100vw, 225px\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/dm74ls154n.jpg 225w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/dm74ls154n-150x150.jpg 150w\" alt=\"\" width=\"225\" height=\"225\" \/><\/p>\n<p><strong>Pinout<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-6836\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/pinout.png\" sizes=\"(max-width: 391px) 100vw, 391px\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/pinout.png 391w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/pinout-300x266.png 300w\" alt=\"\" width=\"391\" height=\"347\" \/><\/p>\n<p>Chip 74LS154 Cada uno de estos decodificadores de 4 l\u00edneas a 16 l\u00edneas utiliza circuitos TTL para decodificar 4 c\u00f3digos binarios (entradas) en uno de 16 mutuamente exclusivas (salidas) cuando ambas luces de entrada, G1 y G2, son BAJOS. La funci\u00f3n de demultiplexor esta presentada usando las 4 l\u00edneas de entrada para dirigir la l\u00ednea de salida, pasando datos desde una de las luces de salida con otra de luz de entrada baja. Cuando cualquiera de las dos luces de entrada son ALTAS. Estos demultiplexores son piezas ideales para implementar memoria decodifica de funci\u00f3n alta Todas las estradas son frenadas y los diodos de entrada sujetados son previstos para minimizar efectos de l\u00ednea de transmisi\u00f3n y de ese modo simplificar el sistema de dise\u00f1o.<\/p>\n<p><strong>Ejemplo de aplicaci\u00f3n<\/strong><br \/>\n74LS154 (Decodificador de 4 l\u00edneas a 16 l\u00edneas)Este componente es capaz de decodificar 4 entradas proporcionando 16 distintas salidas. Est\u00e1 compuesto de dos decodificadores octales unidos en Paralelo. Siendo A, B, C, D las cuatro entradas.<\/p>\n<p><strong>Caracteristicas:<\/strong><\/p>\n<ul>\n<li>Tipo l\u00f3gico: Decodificador \/ demultiplexor<\/li>\n<li>N \u00ba de salidas: 16<\/li>\n<li>Voltaje: 4.5 V a 5.5 V<\/li>\n<li>Rango de temperatura de funcionamiento: -40 \u00b0 C a +125 \u00b0 C<\/li>\n<li>N \u00ba de circuitos: 1<\/li>\n<li>Familia: LS<\/li>\n<li>Encapsulado DIP 24 pines<\/li>\n<\/ul>\n<p><strong>Hoja de datos<\/strong><\/p>\n<p>Descargar \u2013>\u00a0<a href=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/05\/74ls154-1.pdf\">74ls154<\/a><\/p>\n<hr \/>\n<h4>Circuito integrado MT8870de<\/h4>\n<p><img loading=\"lazy\" class=\"alignnone size-large wp-image-6691\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/mt8870de.jpg\" sizes=\"(max-width: 355px) 100vw, 355px\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/mt8870de.jpg 355w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/mt8870de-300x139.jpg 300w\" alt=\"\" width=\"355\" height=\"164\" \/><\/p>\n<p><strong>Pinout del MT8870DE<\/strong><\/p>\n<p><img src=\"https:\/\/encrypted-tbn0.gstatic.com\/images?q=tbn:ANd9GcQr8zJH_QF4PP0ysAFG3KZn9SwhOaEhjr5_NfO63rp2RF_jX1rZ\" alt=\"Resultado de imagen para mt8870de pinout\" \/><\/p>\n<p><strong>Hoja de datos<\/strong><\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2017\/06\/mt8870d-datasheet-oct2006.pdf\">mt8870d-datasheet<\/a><\/p>\n<hr \/>\n<h4>Dos handy baofeng o similar<\/h4>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-6687\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/handy.jpg\" sizes=\"(max-width: 374px) 100vw, 374px\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/handy.jpg 800w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/handy-300x300.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/handy-150x150.jpg 150w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2021\/12\/handy-768x768.jpg 768w\" alt=\"\" width=\"374\" height=\"374\" \/><\/p>\n<hr \/>\n<p><strong>16 Led de 3 mm<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7126 \" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/leds3mm-300x110.jpg\" alt=\"\" width=\"338\" height=\"124\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/leds3mm-300x110.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/leds3mm-768x281.jpg 768w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/leds3mm-820x300.jpg 820w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/leds3mm.jpg 875w\" sizes=\"(max-width: 338px) 100vw, 338px\" \/><\/p>\n<hr \/>\n<p><strong>Pines macho<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7127 size-medium\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho-300x300.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho-150x150.jpg 150w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho-768x768.jpg 768w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho-820x820.jpg 820w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pinesmacho.jpg 1000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<hr \/>\n<p><strong>Un z\u00f3calo de 18 pines para el circuito integrado MT8870de<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7128 size-medium\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo18-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo18-300x225.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo18.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<hr \/>\n<p><strong>Un z\u00f3calo de 24 pines para el circuito integrado DM74LS154N<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-7129 size-medium\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo24-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo24-300x300.jpg 300w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo24-150x150.jpg 150w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/zocalo24.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<hr \/>\n<p><strong>Un PCB<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-7130\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pcb-1.png\" alt=\"\" width=\"649\" height=\"411\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pcb-1.png 649w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/pcb-1-300x190.png 300w\" sizes=\"(max-width: 649px) 100vw, 649px\" \/><\/p>\n<p>Descargar archivo gerber –> <a href=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/PCB_dtmf.zip\">PCB_dtmf<\/a><\/p>\n<hr \/>\n<p><strong>Circuito<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-7133\" src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/circuito-2.png\" alt=\"\" width=\"754\" height=\"416\" srcset=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/circuito-2.png 754w, https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2022\/11\/circuito-2-300x166.png 300w\" sizes=\"(max-width: 754px) 100vw, 754px\" \/><\/p>\n<hr \/>\n<div class=\"page-sidebar widget\" id=\"donation_buttons\"><form action=\"https:\/\/www.paypal.com\/cgi-bin\/webscr\" method=\"post\" target=\"_blank\" ><input type=\"hidden\" name=\"business\" value=\"donacion@rogerbit.com\"><input type=\"hidden\" name=\"bn\" value=\"mbjtechnolabs_SP\"><input type=\"hidden\" name=\"cmd\" value=\"_donations\"><input type=\"hidden\" name=\"item_name\" value=\"Ayuda a RogerBit.com\"><input type=\"hidden\" name=\"item_number\" value=\"www.rogerbit.com\"><input type=\"hidden\" class=\"set_donation_button_amount\" name=\"amount\" value=\"1\"><table ><tbody><tr><td><label for=\"rogerBit necesita de tu ayuda para seguir existiendo :-)\">rogerBit necesita de tu ayuda para seguir existiendo :-)<\/label><\/td><\/tr><\/tbody><\/table><table ><tbody><tr><td><input style=\"margin-top:10px;\" type=\"image\" name=\"submit\" border=\"0\" src=\"https:\/\/www.paypal.com\/en_US\/i\/btn\/btn_donateCC_LG.gif\" alt=\"PayPal - The safer, easier way to pay online\"><\/td><\/tr><\/tbody><\/table><input type=\"hidden\" name=\"currency_code\" value=\"USD\"><input type=\"hidden\" name=\"notify_url\" value=\"https:\/\/rogerbit.com\/wprb\/?Donation_Button&action=ipn_handler\"><\/form><\/div>\n<hr \/>\n<p><strong>PROYECTO RECOMENDADO<\/strong><\/p>\n<p><iframe loading=\"lazy\" title=\"Decodificador DTMF para handy con arduino, control a varios kil\u00f3metros PCBWay.es\" width=\"1160\" height=\"653\" src=\"https:\/\/www.youtube.com\/embed\/_aOdfdYjFEQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PCB barato y r\u00e1pido, impresi\u00f3n 3D, mecanizado CNC y servicios de fabricaci\u00f3n de PCBWay: https:\/\/www.pcbway.com\/setinvite.aspx?inviteid=318610 En este tutorial veremos como hacer un control de luces, motores o bombas de agua, por radiofrecuencia con handy, y circuitos integrados como el mt8870 y el dm74ls154n Mediante tonos dtmf que ser\u00e1n transmitidos al pulsar una tecla del handy, […]<\/p>\n","protected":false},"author":1,"featured_media":7132,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[510],"tags":[181,486,906,717,1520,1521,1381,1319,1524,1523,1519,1522,624,436,1066,917,1459,31,687],"_links":{"self":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/7119"}],"collection":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/comments?post=7119"}],"version-history":[{"count":3,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/7119\/revisions"}],"predecessor-version":[{"id":7136,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/7119\/revisions\/7136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media\/7132"}],"wp:attachment":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media?parent=7119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/categories?post=7119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/tags?post=7119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}