{"id":6024,"date":"2020-11-19T03:00:31","date_gmt":"2020-11-19T03:00:31","guid":{"rendered":"http:\/\/rogerbit.com\/wprb\/?p=6024"},"modified":"2020-11-19T03:00:31","modified_gmt":"2020-11-19T03:00:31","slug":"home-inductive-sensor-for-arduino-metal-detector","status":"publish","type":"post","link":"https:\/\/rogerbit.com\/wprb\/2020\/11\/home-inductive-sensor-for-arduino-metal-detector\/","title":{"rendered":"Home Inductive Sensor for Arduino (Metal Detector)"},"content":{"rendered":"

<\/iframe><\/p>\n<p>In this video we will see how to make an inductive sensor for Arduino. We’ll start by looking at the electronic components we’re going to use, then step together the circuit, also explain the source code in detail, and finally test how the whole system works.<\/p>\n<hr \/>\n<p>You may be interested in projects in Arduino, pic, robotics, telecommunications,\u00a0<a href=\"http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1\">subscribe http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1<\/a>\u00a0videos with full source code and diagrams<\/p>\n<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>\n<hr \/>\n<h4>Materials<\/h4>\n<p>Two 2.2 uF electrolytic capacitors<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5373\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf.jpg\" sizes=\"(max-width: 181px) 100vw, 181px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf.jpg 800w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf-280x300.jpg 280w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf-768x822.jpg 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/2.2uf-600x642.jpg 600w\" alt=\"\" width=\"181\" height=\"194\" \/><\/a><\/p>\n<p>A 10 uF capacitor<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/10uf.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5374\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/10uf.jpg\" sizes=\"(max-width: 206px) 100vw, 206px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/10uf.jpg 505w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/10uf-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/10uf-300x300.jpg 300w\" alt=\"\" width=\"206\" height=\"206\" \/><\/a><\/p>\n<p>A 47K resistor<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/47k.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5375\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/47k.jpg\" sizes=\"(max-width: 210px) 100vw, 210px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/47k.jpg 400w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/47k-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/47k-300x300.jpg 300w\" alt=\"\" width=\"210\" height=\"210\" \/><\/a><\/p>\n<p>An integrated circuit 555<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/555.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5376\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/555.jpg\" sizes=\"(max-width: 196px) 100vw, 196px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/555.jpg 342w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/555-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/555-300x300.jpg 300w\" alt=\"\" width=\"196\" height=\"196\" \/><\/a><\/p>\n<p>A printed circuit<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector_metales.png\"><img loading=\"lazy\" class=\"alignnone wp-image-5377\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector_metales.png\" sizes=\"(max-width: 342px) 100vw, 342px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector_metales.png 580w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector_metales-300x183.png 300w\" alt=\"\" width=\"342\" height=\"209\" \/><\/a><\/p>\n<p>Download gerber file \u2014>\u00a0<a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/Gerber_detector_metales_20200220215310.zip\">Gerber_detector_metales<\/a><\/p>\n<p>A 6800 uH inductor<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/inductor.jpg\"><img loading=\"lazy\" class=\"alignnone size-large wp-image-5378\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/inductor.jpg\" sizes=\"(max-width: 320px) 100vw, 320px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/inductor.jpg 320w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/inductor-300x225.jpg 300w\" alt=\"\" width=\"320\" height=\"240\" \/><\/a><\/p>\n<p>Male pins<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/pines.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5379\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/pines.jpg\" sizes=\"(max-width: 270px) 100vw, 270px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/pines.jpg 696w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/pines-300x200.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/pines-600x400.jpg 600w\" alt=\"\" width=\"270\" height=\"180\" \/><\/a><\/p>\n<p>An 8-pin socket<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/zocalo8.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5380\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/zocalo8.jpg\" sizes=\"(max-width: 202px) 100vw, 202px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/zocalo8.jpg 225w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/zocalo8-150x150.jpg 150w\" alt=\"\" width=\"202\" height=\"202\" \/><\/a><\/p>\n<h4>Source<\/h4>\n<div id=\"crayon-5fb5dd0be63f0787000677\" class=\"crayon-syntax crayon-theme-classic crayon-font-monaco crayon-os-pc print-yes notranslate\" data-settings=\" minimize scroll-mouseover\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<pre class=\"lang:default decode:true \">#include <FreqCount.h>\/\/Debemos incluir esta librer\u00eda para el conteo de la frecuencia\r\n\/\/Variables\r\nint led2=2;\r\nint led3=3;\r\nint led4=4;\r\nunsigned long count = 0;\r\nvoid setup() {\r\n Serial.begin(9600);\/\/Velocidad del puerto serial\r\n FreqCount.begin(1000);\r\n \/\/pin 2, 3 y 4 se configuran como salidas\r\n pinMode(led2, OUTPUT);\r\n pinMode(led3, OUTPUT);\r\n pinMode(led4, OUTPUT);\r\n}\r\nvoid loop() {\r\n if (FreqCount.available()) {\/\/Devuelve verdadero cuando hay una nueva medida disponible\r\n count = FreqCount.read();\/\/Devuelve la medici\u00f3n m\u00e1s reciente, la medici\u00f3n se hace por defecto en el pin numero 5 del arduino\r\n Serial.println(count);\/\/Imprime el valor de la frecuencia obtenida en el monitor serial\r\n\/\/Comparamos si el valor de la frecuencia es menor a 2800 encendemos el led \r\n if(count<2800){\r\n digitalWrite(led2, HIGH);\r\n }else{\r\n digitalWrite(led2, LOW);\r\n }\r\n\/\/Comparamos si el valor de la frecuencia es menor a 2700 encendemos el led \r\n if(count<2700){\r\n digitalWrite(led3, HIGH);\r\n }else{\r\n digitalWrite(led3, LOW);\r\n }\r\n\/\/Comparamos si el valor de la frecuencia es menor a 2600 encendemos el led \r\n if(count<2600){\r\n digitalWrite(led4, HIGH);\r\n }else{\r\n digitalWrite(led4, LOW);\r\n }\r\n}\r\n}<\/pre>\n<h4>Diagram<\/h4>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/diagrama.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5383\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/diagrama.png\" sizes=\"(max-width: 446px) 100vw, 446px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/diagrama.png 446w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/diagrama-280x300.png 280w\" alt=\"\" width=\"446\" height=\"478\" \/><\/a><\/p>\n<p>Inductive sensor mounted on a protoboard, with an arduino mini pro and source for powered protoboard, the whole circuit with 5 volts.<\/p>\n<p>You can also see that it is connected a serial USB cable, which allows us to see in the Arduino ide which frequency you are reading.\u00a0<a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales.jpg\"><img loading=\"lazy\" class=\"alignnone size-large wp-image-5385\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales.jpg\" sizes=\"(max-width: 960px) 100vw, 960px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales.jpg 960w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales-300x225.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales-768x576.jpg 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales-600x450.jpg 600w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/02\/detector-de-metales-820x615.jpg 820w\" alt=\"\" width=\"960\" height=\"720\" \/><\/a><\/p>\n<p>SUBSCRIBE TO OUR NEWSLETTERS, RECEIVE IN YOUR EMAIL THE MOST OUTSTANDING NEWS, JUST BY ENTERING YOUR EMAIL<\/p>\n<p style=\"text-align: left;\">[wysija_form id=”1″]<\/p>\n<hr \/>\n<p style=\"text-align: left;\"><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><\/p>\n<hr \/>\n<p style=\"text-align: left;\"><strong>RECOMMENDED PROJECT<\/strong><\/p>\n<p><iframe loading=\"lazy\" width=\"1160\" height=\"653\" src=\"https:\/\/www.youtube.com\/embed\/vxBG_bew2Eg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>In this video we will see how to make an inductive sensor for Arduino. We’ll start by looking at the electronic components we’re going to use, then step together the circuit, also explain the source code in detail, and finally test how the whole system works. You may be interested in projects in Arduino, pic, […]<\/p>\n","protected":false},"author":1,"featured_media":6025,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[648],"tags":[45,913,977,966,984,985,7,542,986],"_links":{"self":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6024"}],"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=6024"}],"version-history":[{"count":1,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6024\/revisions"}],"predecessor-version":[{"id":6026,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6024\/revisions\/6026"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media\/6025"}],"wp:attachment":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media?parent=6024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/categories?post=6024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/tags?post=6024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}