{"id":3529,"date":"2014-02-01T11:35:44","date_gmt":"2014-02-01T10:35:44","guid":{"rendered":"http:\/\/bitacora.eniac2000.com\/?p=3529"},"modified":"2014-02-01T11:35:44","modified_gmt":"2014-02-01T10:35:44","slug":"rele-casero-para-el-reloj-de-riego","status":"publish","type":"post","link":"https:\/\/bitacora.eniac2000.com\/?p=3529","title":{"rendered":"Rel\u00e9 casero para el reloj de riego"},"content":{"rendered":"<p>El avance que traigo en este art\u00edculo es peque\u00f1o. He ensamblado un rel\u00e9 casero, destinado a miniaturizar el sistema de control del reloj de riego. Hasta ahora estaba haciendo uso de la placa de 4 rel\u00e9s que compr\u00e9 en DX (<a href=\"http:\/\/bitacora.eniac2000.com\/?p=3408\" title=\"Control de rel\u00e9s con una Raspberry Pi\"><\/a>, pero es demasiado grande y aparatoso. Esto es lo que he perge\u00f1ado:<\/p>\n<p><a href=\"http:\/\/bitacora.eniac2000.com\/wp-content\/uploads\/2014\/02\/rele-casero.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/bitacora.eniac2000.com\/wp-content\/uploads\/2014\/02\/rele-casero-377x400.jpg\" alt=\"Rel\u00e9 casero\" title=\"Rel\u00e9 casero\" width=\"377\" height=\"400\" class=\"aligncenter size-medium wp-image-3530\" \/><\/a><\/p>\n<p>Un poco chapucero, pero funciona. <img src=\"https:\/\/bitacora.eniac2000.com\/wp-includes\/images\/smilies\/mrgreen.png\" alt=\":mrgreen:\" class=\"wp-smiley\" style=\"height: 1em; max-height: 1em;\" \/> He dejado algo de espacio en la placa PCB para poder instalar un chip Attiny85, as\u00ed como los pines para conectar el m\u00f3dulo de rf.<\/p>\n<p>Otra de las razones para cambiar el rel\u00e9 que ven\u00eda usando hasta ahora es que la placa de rel\u00e9s de DX era activa a baja (active low). Esto quiere decir que estaba encendido cuando el voltaje era de 0 voltios, y pasivo cuando el voltaje era negativo. Esto no era especialmente pr\u00e1ctico para controlar el sistema desde Arduino (aunque facilitaba la vida en el caso de la Raspberry), as\u00ed que he montado un sistema de rel\u00e9 activo en alta (active high), lo que me dar\u00e1 menos guerra cuando monte todo el sistema con el Attiny.<\/p>\n<p>Seguiremos informando. <img src=\"https:\/\/bitacora.eniac2000.com\/wp-includes\/images\/smilies\/mrgreen.png\" alt=\":mrgreen:\" class=\"wp-smiley\" style=\"height: 1em; max-height: 1em;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El avance que traigo en este art\u00edculo es peque\u00f1o. He<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[13],"tags":[133,168,1410],"series":[],"class_list":["post-3529","post","type-post","status-publish","format-standard","hentry","category-informatica","tag-arduino","tag-attiny85","tag-rele"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts\/3529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3529"}],"version-history":[{"count":0,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts\/3529\/revisions"}],"wp:attachment":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3529"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=3529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}