{"id":77,"date":"2017-11-03T11:18:53","date_gmt":"2017-11-03T11:18:53","guid":{"rendered":"http:\/\/jagumiel.xyz\/blog\/?p=77"},"modified":"2025-03-03T23:08:47","modified_gmt":"2025-03-03T23:08:47","slug":"voltimetro-grafico","status":"publish","type":"post","link":"https:\/\/jagumiel.xyz\/blog\/2017\/11\/03\/voltimetro-grafico\/","title":{"rendered":"Medidor de voltaje: Crea tu volt\u00edmetro gr\u00e1fico"},"content":{"rendered":"<h2>Introducci\u00f3n<\/h2>\n<p>Mientras experimentaba con MatLab y su sistema de adquisici\u00f3n de se\u00f1ales, descubr\u00ed un paquete de soporte para Arduino que permite interactuar f\u00e1cilmente con la placa. Aprovechando esto, decid\u00ed crear un medidor de voltaje que representara gr\u00e1ficamente los datos en la pantalla del ordenado, es decir, un volt\u00edmetro gr\u00e1fico.<\/p>\n<p>Utilizando una entrada anal\u00f3gica de la tarjeta Arduino, logr\u00e9 visualizar los valores de voltaje en tiempo real. A continuaci\u00f3n, te explico el esquema y los pasos para construir tu propio volt\u00edmetro gr\u00e1fico.<\/p>\n<h2>Desarrollo del volt\u00edmetro gr\u00e1fico<\/h2>\n<div id=\"attachment_27\" style=\"width: 641px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-27\" class=\"alignnone size-full wp-image-79\" src=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2.png\" alt=\"\" width=\"631\" height=\"468\" srcset=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2.png 631w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2-300x223.png 300w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2-150x111.png 150w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><p id=\"caption-attachment-27\" class=\"wp-caption-text\">Imagen 1. Esquema de conexionado.<\/p><\/div>\n<p>El montaje ha sido muy sencillo. Se ha conectado el Arduino al PC a trav\u00e9s de un cable USB. Con una peque\u00f1a protoboard se ha conectado un potenci\u00f3metro y se han conectado los pines siguiendo el esquema de la imagen anterior. Aqu\u00ed se ve el resultado:<\/p>\n<div id=\"attachment_27\" style=\"width: 1290px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-27\" class=\"alignnone size-full wp-image-80\" src=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652.jpg\" alt=\"\" width=\"1280\" height=\"960\" srcset=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652.jpg 1280w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652-300x225.jpg 300w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652-768x576.jpg 768w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652-1024x768.jpg 1024w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652-150x113.jpg 150w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><p id=\"caption-attachment-27\" class=\"wp-caption-text\">Imagen 2. Montaje, se alimenta el potenci\u00f3metro y se conecta a la entrada anal\u00f3gica.<\/p><\/div>\n<p>En MATLAB se ha creado un objeto de tipo arduino para interactuar con la placa. Es necesario tener el paquete de Arduino instalado en MATLAB. Se ha dise\u00f1ado el espacio donde saldr\u00e1n reflejados los datos y posteriormente se ha creado un bucle de unos 50 segundos de duraci\u00f3n que consiste en realizar la lectura del voltaje y dibujarla en la gr\u00e1fica.<\/p>\n<h2>Demostraci\u00f3n<\/h2>\n<p>Para hacer las pruebas, durante la ejecuci\u00f3n del programa, se ha jugado con el potenci\u00f3metro, haciendo que el voltaje var\u00ede. Esto se ve reflejado en la siguiente imagen, que es la gr\u00e1fica que ha creado MATLAB:<\/p>\n<div id=\"attachment_78\" style=\"width: 570px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-78\" class=\"wp-image-78 size-full\" src=\"http:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt.png\" alt=\"Volt\u00edmetro gr\u00e1fico en funcionamiento.\" width=\"560\" height=\"420\" srcset=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt.png 560w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt-300x225.png 300w, https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt-150x113.png 150w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/a><p id=\"caption-attachment-78\" class=\"wp-caption-text\">Imagen 3. Resultados obtenidos, el gr\u00e1fico cambia acorde con el voltaje generado.<\/p><\/div>\n<p>En los siguientes enlaces est\u00e1 el acceso al c\u00f3digo utilizado y al repositorio de adquisici\u00f3n de datos:<\/p>\n<p><a href=\"https:\/\/github.com\/jagumiel\/Data-Acquisition\">Repositorio de adquisici\u00f3n de datos<\/a><br \/>\n<a href=\"https:\/\/github.com\/jagumiel\/Data-Acquisition\/blob\/master\/Matlab\/Graph_Voltimeter\/Graph_Voltimeter.m\">C\u00f3digo del volt\u00edmetro gr\u00e1fico<\/a><\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-77 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/jagumiel.xyz\/blog\/2017\/11\/03\/voltimetro-grafico\/graph_volt\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/graph_volt-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/jagumiel.xyz\/blog\/2017\/11\/03\/voltimetro-grafico\/circuito_voltimetro2\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/circuito_voltimetro2-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/jagumiel.xyz\/blog\/2017\/11\/03\/voltimetro-grafico\/photo6044177961378228652\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/jagumiel.xyz\/blog\/wp-content\/uploads\/2017\/11\/photo6044177961378228652-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Aprende a construir un volt\u00edmetro gr\u00e1fico con esta gu\u00eda detallada. Sigue los pasos y consejos para crear tu propio dispositivo de medici\u00f3n visual.<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/jagumiel.xyz\/blog\/2017\/11\/03\/voltimetro-grafico\/\">Continue reading<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":78,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[7,5,6],"tags":[14,38],"class_list":["post-77","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adquisicion-de-datos","category-hardware","category-sieav","tag-hardware","tag-matlab"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/posts\/77","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/comments?post=77"}],"version-history":[{"count":5,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/posts\/77\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/posts\/77\/revisions\/525"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/media\/78"}],"wp:attachment":[{"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/media?parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/categories?post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jagumiel.xyz\/blog\/wp-json\/wp\/v2\/tags?post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}