{"id":2711,"date":"2023-06-16T20:22:52","date_gmt":"2023-06-17T01:22:52","guid":{"rendered":"https:\/\/www.electroallweb.com\/?p=2711"},"modified":"2023-06-17T21:38:41","modified_gmt":"2023-06-18T02:38:41","slug":"como-usar-un-teclado-de-4x4-sin-arduino-mm72c922","status":"publish","type":"post","link":"https:\/\/www.electroallweb.com\/index.php\/2023\/06\/16\/como-usar-un-teclado-de-4x4-sin-arduino-mm72c922\/","title":{"rendered":"COMO USAR un TECLADO DE 4X4 SIN ARDUINO (MM72C922)"},"content":{"rendered":"<section class=\"l-section wpb_row height_medium\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row type_default valign_top\"><div class=\"vc_col-sm-10 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-socials align_center style_default color_brand index_1\" style=\"font-size:30px;\"><div class=\"w-socials-list\"><div class=\"w-socials-item facebook\">\r\n\t\t\t\t<a class=\"w-socials-item-link\" target=\"_blank\" href=\"https:\/\/www.facebook.com\/ELECTROALL.ELECTRONICA\/\">\r\n\t\t\t\t\t<span class=\"w-socials-item-link-hover\"><\/span>\r\n\t\t\t\t\t<span class=\"w-socials-item-link-title\">Facebook<\/span>\r\n\t\t\t\t<\/a>\r\n\t\t\t\t<div class=\"w-socials-item-popup\">\r\n\t\t\t\t\t<span>Facebook<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div><div class=\"w-socials-item youtube\">\r\n\t\t\t\t<a class=\"w-socials-item-link\" target=\"_blank\" href=\"https:\/\/www.youtube.com\/c\/ELECTROALL\">\r\n\t\t\t\t\t<span class=\"w-socials-item-link-hover\"><\/span>\r\n\t\t\t\t\t<span class=\"w-socials-item-link-title\">YouTube<\/span>\r\n\t\t\t\t<\/a>\r\n\t\t\t\t<div class=\"w-socials-item-popup\">\r\n\t\t\t\t\t<span>YouTube<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div><div class=\"w-socials-item instagram\">\r\n\t\t\t\t<a class=\"w-socials-item-link\" target=\"_blank\" href=\"https:\/\/www.instagram.com\/electroall_\/\">\r\n\t\t\t\t\t<span class=\"w-socials-item-link-hover\"><\/span>\r\n\t\t\t\t\t<span class=\"w-socials-item-link-title\">Instagram<\/span>\r\n\t\t\t\t<\/a>\r\n\t\t\t\t<div class=\"w-socials-item-popup\">\r\n\t\t\t\t\t<span>Instagram<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div><div class=\"w-socials-item github\">\r\n\t\t\t\t<a class=\"w-socials-item-link\" target=\"_blank\" href=\"https:\/\/github.com\/ELECTROALL\">\r\n\t\t\t\t\t<span class=\"w-socials-item-link-hover\"><\/span>\r\n\t\t\t\t\t<span class=\"w-socials-item-link-title\">GitHub<\/span>\r\n\t\t\t\t<\/a>\r\n\t\t\t\t<div class=\"w-socials-item-popup\">\r\n\t\t\t\t\t<span>GitHub<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div><\/div><\/div>\r\n\t<div class=\"wpb_text_column  vc_custom_1686961978305\">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<h5><span id=\"ESPECIFICACIONES_TECNICAS\">INTRODUCCI\u00d3N<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-265 alignnone\" src=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png\" alt=\"\" width=\"1080\" height=\"36\" srcset=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png 300w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-1024x33.png 1024w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-768x25.png 768w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores.png 1624w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/span><\/h5>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n\r\n\t<div class=\"wpb_text_column \">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<p style=\"text-align: justify;\">Tal vez muchos no sab\u00edan de las existencia del circuito integrado MM74C922, en realidad yo tampoco no lo conoc\u00eda, y en cuanto me entere me pareci\u00f3 muy interesante ya que puede leer un teclado matricial de 4*4 y en su salida me proporciona 4 bits de acuerdo a la teclado pulsado. Y bueno para demostrar el funcionamiento vamos usar un decodificador para display de 7 segmentos.<\/p>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<div class=\"w-image\"><div class=\"w-image-h\"><a href=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922.png\" ref=\"magnificPopup\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"714\" src=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922-1024x714.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922-1024x714.png 1024w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922-300x209.png 300w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922-768x536.png 768w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922-600x418.png 600w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2023\/06\/demo-funcionamiento-MM74C922.png 1269w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/div><\/div>\r\n\t<div class=\"wpb_text_column \">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<p><span style=\"color: #ff6600;\"><strong>En la imagen mostrado se a pulsado el numero 5<\/strong><\/span><\/p>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><\/div><\/div><div class=\"vc_col-sm-2 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_medium\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row type_default valign_top\"><div class=\"vc_col-sm-10 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\r\n\t<div class=\"wpb_text_column  vc_custom_1686965073523\">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<h5><span id=\"ESPECIFICACIONES_TECNICAS\">DESCARGAS<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-265 alignnone\" src=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png\" alt=\"\" width=\"1080\" height=\"36\" srcset=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png 300w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-1024x33.png 1024w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-768x25.png 768w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores.png 1624w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/span><\/h5>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<div class=\"w-btn-wrapper align_left\"><a class=\"w-btn style_solid color_primary icon_none\" href=\"https:\/\/github.com\/ELECTROALL\/circuito-integrado-MM74C922\/blob\/main\/MM74C922%20y%2074LS48.pdsprj\"><span class=\"w-btn-label\">DESCARGAR SIMULACION EN PROTEUS 8.15<\/span><\/a><\/div><div class=\"w-btn-wrapper align_left\"><a class=\"w-btn style_solid color_primary icon_none\" href=\"https:\/\/github.com\/ELECTROALL\/circuito-integrado-MM74C922\/blob\/main\/MM74C922%20y%2074LS48.PDF\"><span class=\"w-btn-label\">DESCARGAR ESQUEMA PDF<\/span><\/a><\/div><div class=\"w-btn-wrapper align_left\"><a class=\"w-btn style_solid color_primary icon_none\" href=\"https:\/\/github.com\/ELECTROALL\/circuito-integrado-MM74C922\/blob\/main\/MM74C922%20DATASHEET.pdf\"><span class=\"w-btn-label\">Descargar Datasheet<\/span><\/a><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-2 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_medium\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row type_default valign_top\"><div class=\"vc_col-sm-10 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\r\n\t<div class=\"wpb_text_column  vc_custom_1686965350818\">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<h5><span id=\"ESPECIFICACIONES_TECNICAS\">VIDEO<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-265 alignnone\" src=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png\" alt=\"\" width=\"1080\" height=\"36\" srcset=\"https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-300x10.png 300w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-1024x33.png 1024w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores-768x25.png 768w, https:\/\/www.electroallweb.com\/wp-content\/uploads\/2019\/11\/linea-electroall-de-colores.png 1624w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/span><\/h5>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<div class=\"w-video ratio_16x9\"><div class=\"w-video-h\"><iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/kHqEjXBSo6I?rel=0\" allowfullscreen><\/iframe><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-2 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Facebook Facebook YouTube YouTube Instagram Instagram GitHub GitHub INTRODUCCI\u00d3N Tal vez muchos no sab\u00edan de las existencia del circuito integrado MM74C922, en realidad yo tampoco no lo conoc\u00eda, y en cuanto me entere me pareci\u00f3 muy interesante ya que puede leer un teclado matricial de 4*4 y en su salida me proporciona 4 bits de...","protected":false},"author":2,"featured_media":2716,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[22],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/posts\/2711"}],"collection":[{"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/comments?post=2711"}],"version-history":[{"count":9,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/posts\/2711\/revisions"}],"predecessor-version":[{"id":2722,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/posts\/2711\/revisions\/2722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/media\/2716"}],"wp:attachment":[{"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/media?parent=2711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/categories?post=2711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electroallweb.com\/index.php\/wp-json\/wp\/v2\/tags?post=2711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}