{"id":4474,"date":"2017-03-03T17:53:43","date_gmt":"2017-03-03T16:53:43","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/tarragones\/?p=4474"},"modified":"2019-04-30T10:20:32","modified_gmt":"2019-04-30T08:20:32","slug":"jmcantons","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/jmcantons\/","title":{"rendered":"Dispensador de menjar autom\u00e0tic"},"content":{"rendered":"<p><em><strong><span style=\"color: #808080;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-6418\" src=\"http:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-content\/uploads\/usu549\/2017\/03\/Josep-Maria-Cantons-P\u00e9rez.jpg\" alt=\"Josep Maria Cantons P\u00e9rez\" width=\"177\" height=\"236\" \/>T\u00edtol:<\/span> <\/strong><\/em><strong>Dispensador de menjar autom\u00e0tic<\/strong><br \/>\n<span style=\"color: #808080;\"><em><strong>Autor: <\/strong><\/em><\/span><strong>Josep Maria Cantons P\u00e9rez<\/strong><br \/>\n<em><strong><span style=\"color: #808080;\">Tutor:<\/span> <\/strong><\/em>Josep Maria Cantons Rafel<br \/>\n<em><strong><span style=\"color: #808080;\">Modalitat:<\/span> <\/strong><\/em>Ci\u00e8ncies i tecnologia<br \/>\n<span style=\"color: #808080;\"><em><strong>\u00c0rea curricular: <\/strong><\/em><\/span>Tecnologia Industrial<br \/>\n<span style=\"color: #808080;\"><em><strong>Centre: <\/strong><\/em><\/span>Ins Sant Pere i Sant Pau<br \/>\n<em><strong><span style=\"color: #808080;\">Localitat:<\/span>\u00a0<\/strong><\/em>Tarragona<\/p>\n<h6><strong>Objectius:<\/strong><\/h6>\n<p style=\"text-align: justify;\">Construir\u00a0 un dispensador de menjar autom\u00e0tic \u00a0per tal de, poder donar una quantitat\u00a0 de menjar a una hora determinada\u00a0 cada 12 h o 24 h i que es pugui programar manualment o mitjan\u00e7ant una aplicaci\u00f3 de m\u00f2bil.<\/p>\n<h6 style=\"text-align: justify;\"><strong>Hip\u00f2tesis:<\/strong><\/h6>\n<p style=\"text-align: justify;\">La idea de realitzar aquest treball va sorgir d\u2019un problema que vam tenir amb el nostre gat quan li van detectar que tenia sucre i per tant, segons el veterinari, li hav\u00edem de donar una quantitat de 80 grams de menjar especial una vegada al dia \u00a0i sempre a la mateixa hora. Quan ja va estar recuperat ens va dir el veterinari que li hav\u00edem de donar de menjar dues vegades al dia la quantitat de 40 grams i sempre a la mateixa hora. \u00a0Com que moltes vegades a la tarda no pod\u00edem estar a l\u2019hora determinada, em va sorgir la idea de construir el dispensador autom\u00e0tic.<\/p>\n<h6 style=\"text-align: justify;\"><strong>El proc\u00e9s:<\/strong><\/h6>\n<p style=\"text-align: justify;\">Primer de tot vaig pensar en les <strong><em>especificacions<\/em><\/strong> que havia de tenir el <strong><em>dispensador<\/em><\/strong>. Com que el dispensador el podrem programar manualment o mitjan\u00e7ant una aplicaci\u00f3 de tel\u00e8fon m\u00f2bil vaig haver de pensar en el que necessitaria. I vaig decidir els components b\u00e0sics que havia de tenir. Aquests van ser: quatre polsadors, una pantalla LCD, m\u00f2dul bluetooth, tres leds, un brunzidor,\u00a0 un servomotor i el m\u00f2dul de comunicacions per poder programar el microcontrolador. En aquest cas vaig elegir el microcontrolador picaxe 20 m2 per la seva facilitat de programaci\u00f3 en basic i configuraci\u00f3 dels seus pins.<\/p>\n<p style=\"text-align: justify;\">Un cop decidit qu\u00e8 havia de tenir el dispensador i el microcontrolador a utilitzar, vaig realitzar l\u2019<strong><em>esquema electr\u00f2nic de la placa<\/em><\/strong> centrant el microcontrolador al centre i incorporant els diferents elements descrits anteriorment. Aix\u00f2 em va servir per fer un llistat dels components que havia de comprar i com connectar-los.<\/p>\n<p style=\"text-align: justify;\">Abans de fer la placa definitiva vaig fer un <strong><em>prototip<\/em><\/strong> amb dues plaques perforades per aprendre a soldar i poder programar en aquesta de prova; d\u2019aquesta manera quan tingu\u00e9s la definitiva el programa ja serviria. Una vegada acabat el prototip vaig comen\u00e7ar a fer una s\u00e8rie de programes per veure si funcionaven correctament els diferents m\u00f2duls.<\/p>\n<p style=\"text-align: justify;\">Seguidament vaig comen\u00e7ar a fer la <strong><em>placa PCB definitiva<\/em><\/strong> i una vegada acabada vaig comen\u00e7ar a realitzar els diferents programes. Com per utilitzar el programa de m\u00f2bil necessitava una aplicaci\u00f3 de m\u00f2bil la vaig realitzar amb l\u2019<strong><em>App Inventor <\/em><\/strong>de Google, tot i les dificultats que vaig tenir amb el seu funcionament, finalment va funcionar.<\/p>\n<p style=\"text-align: justify;\">Despr\u00e8s vaig comen\u00e7ar a fer el <strong><em>dispensador final<\/em><\/strong> amb fusta, aquest es dividia en dues parts, el <strong><em>mecanisme per donar menjar<\/em><\/strong> i l\u2019estructura per subjectar les plaques, el menjar i el mecanisme.<\/p>\n<p style=\"text-align: justify;\">Finalment quan ja vaig tenir el dispensador acabat amb les plaques ja col\u00b7locades vaig fer els \u00faltims retocs i proves dels programes, tant el manual com l\u2019App del m\u00f2bil.<\/p>\n<div id='gallery-1' class='gallery galleryid-4474 gallery-columns-2 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/jmcantons\/attachment\/proto-2\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-content\/uploads\/usu549\/2017\/03\/proto-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-4497\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4497'>\n\t\t\t\tPrototip de la placa\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/jmcantons\/attachment\/forat-2\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-content\/uploads\/usu549\/2017\/03\/forat-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-4494\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4494'>\n\t\t\t\tPlaca PCB foradant\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/jmcantons\/attachment\/disp-final\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-content\/uploads\/usu549\/2017\/03\/disp-final-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-4493\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4493'>\n\t\t\t\tDispensador final\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/jmcantons\/attachment\/g-menjant\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-content\/uploads\/usu549\/2017\/03\/g-menjant-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-4495\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4495'>\n\t\t\t\tGat menjant del dispensador\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<h6><strong>Conclusions:<\/strong><\/h6>\n<p style=\"text-align: justify;\">Per concloure puc dir que s\u2019ha complert l\u2019objectiu ja que he pogut fer el dispensador de menjar autom\u00e0tic tot i les dificultats. Aquestes han sorgit ja que ha estat la primera vegada que he treballat amb plaques PCB i des de 4t d\u2019ESO no programava encara que aquest sistema de PICAXE ha estat nou des del principi per a mi.<\/p>\n<h6><strong>Bibliografia:<\/strong><\/h6>\n<ul>\n<li>Informaci\u00f3 de Picaxe amb el seu manual: <a href=\"http:\/\/www.picaxe.com\/docs\/picaxe_manual1.pdf\" target=\"_blank\" rel=\"noopener\">http:\/\/www.picaxe.com\/docs\/picaxe_manual1.pdf<\/a><\/li>\n<li>Tipus de micros Picaxe:<a href=\"http:\/\/www.picaxe.com\/What-is-PICAXE\/PICAXE-Chip-Labels\/\" target=\"_blank\" rel=\"noopener\"> http:\/\/www.picaxe.com\/What-is-PICAXE\/PICAXE-Chip-Labels\/<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Ins Sant Pere i Sant Pau<\/p>\n","protected":false},"author":1,"featured_media":6065,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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