{"id":2586,"date":"2018-01-15T20:44:32","date_gmt":"2018-01-15T20:44:32","guid":{"rendered":"https:\/\/www.chatteris.biz\/blog\/?p=2586"},"modified":"2022-04-16T11:08:48","modified_gmt":"2022-04-16T10:08:48","slug":"sonoff-basic-voltage-free-relay-changeover-modification","status":"publish","type":"post","link":"https:\/\/www.chatteris.biz\/blog\/sonoff-basic-voltage-free-relay-changeover-modification\/","title":{"rendered":"Sonoff Basic Voltage Free Relay Changeover Modification"},"content":{"rendered":"\n<h6 class=\"wp-block-heading\">What is Sonoff &#8211;<\/h6>\n\n\n\n<p>Home automation is &#8220;The Internet of Things&#8221;. It simply means the way all devices or appliances are networked together to provide customers with a seamless control over their home equipment.<\/p>\n\n\n\n<p>Sonoff is an affordable device that provides users with smart home control. It is a WiFi based wireless switch that can connect to a wide range of appliances. Sonoff transmits data to a cloud platform through the WiFi router, which enables users to remotely control all the connected appliances, via the mobile application eWeLink. The cloud server of Sonoff is Amazon AWS global server.<\/p>\n\n\n\n<p>Sonoff makes all home appliances smart. As long as the mobile has network, users can remotely control the appliances from anywhere at any time. Another feature available is to set timing schedules for the appliances, which can include countdown, scheduled on\/off, and can thus, help users maintain an easy life.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"316\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Ewelinkappdownload.jpg\" alt=\"ios\" class=\"wp-image-2576\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Ewelinkappdownload.jpg 500w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Ewelinkappdownload-300x190.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"283\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Sonoff_and_Slampher_Global_Cloud_Server.jpg\" alt=\"wifi\" class=\"wp-image-2577\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Sonoff_and_Slampher_Global_Cloud_Server.jpg 500w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/500px-Sonoff_and_Slampher_Global_Cloud_Server-300x170.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2009-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2009-Medium-768x1024.jpg\" alt=\"sonoff\" class=\"wp-image-2578\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2009-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2009-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>The unit I needed to modify was the <a href=\"https:\/\/www.itead.cc\/wiki\/Sonoff\" target=\"_blank\" rel=\"noopener\">Sonoff Basic<\/a>, this is a simple WiFi enabled unit which will switch 230v on or off, however, the application I needed was for it to switch a set of voltage free contacts, as these cost less that \u00a36.00 each, its worth a go with the soldering iron.<\/p>\n\n\n\n<p>The unit is very compact and before starting, I paired it with my mobile phone and checked that it worked correctly.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2011-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2011-Medium-768x1024.jpg\" alt=\"Sonoff open\" class=\"wp-image-2580\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2011-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2011-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>The top simply clips off the base and the PCB comes apart without any fixings after cutting the paper security seal.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2012-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2012-Medium-768x1024.jpg\" alt=\"top\" class=\"wp-image-2581\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2012-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2012-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2013-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2013-Medium-768x1024.jpg\" alt=\"bottom\" class=\"wp-image-2582\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2013-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2013-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<p>The relay has the Sonoff sticker on it and the mains is switched through the relay, <strong>the board uses double sided tracks for this.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2014-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2014-Medium-768x1024.jpg\" alt=\"Removed\" class=\"wp-image-2583\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2014-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2014-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>The relay was desoldered and removed from the PCB, this then allowed access to the tracks which were cut with a Dremel.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2016-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2016-Medium-768x1024.jpg\" alt=\"bottom cut\" class=\"wp-image-2585\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2016-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2016-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>The picture shows the bottom of the PCB with the tracks cut from the 230v input and a shorting link to complete the relay switching circuit.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2015-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2015-Medium-768x1024.jpg\" alt=\"top cut\" class=\"wp-image-2584\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2015-Medium.jpg 768w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2015-Medium-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>This shows the relay back in place and the top tracks cut, the modification now allows a voltage free changeover which will be used to bring on my low voltage triggered external lighting.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium-1024x768.jpg\" alt=\"Lighting Sonoff\" class=\"wp-image-2630\" srcset=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium.jpg 1024w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium-300x225.jpg 300w, https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>Sonoff installed and connected to controller.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is Sonoff &#8211; Home automation is &#8220;The Internet of Things&#8221;. It simply means the way all devices or appliances are networked together to provide customers with a seamless control over their home equipment. Sonoff is an affordable device that provides users with smart home control. It is a WiFi based wireless switch that can &hellip; <a href=\"https:\/\/www.chatteris.biz\/blog\/sonoff-basic-voltage-free-relay-changeover-modification\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Sonoff Basic Voltage Free Relay Changeover Modification<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[336],"tags":[156,143,155],"class_list":["post-2586","post","type-post","status-publish","format-standard","hentry","category-electronics","tag-relay-modification","tag-sonoff","tag-sonoff-basic"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sonoff Basic Voltage Free Relay Changeover Modification - My Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.chatteris.biz\/blog\/sonoff-basic-voltage-free-relay-changeover-modification\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sonoff Basic Voltage Free Relay Changeover Modification - My Blog\" \/>\n<meta property=\"og:description\" content=\"What is Sonoff &#8211; Home automation is &#8220;The Internet of Things&#8221;. It simply means the way all devices or appliances are networked together to provide customers with a seamless control over their home equipment. Sonoff is an affordable device that provides users with smart home control. It is a WiFi based wireless switch that can &hellip; Continue reading Sonoff Basic Voltage Free Relay Changeover Modification &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.chatteris.biz\/blog\/sonoff-basic-voltage-free-relay-changeover-modification\/\" \/>\n<meta property=\"og:site_name\" content=\"My Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/search\/top\/?q=chatterisweather\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/search\/top\/?q=chatterisweather\" \/>\n<meta property=\"article:published_time\" content=\"2018-01-15T20:44:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-16T10:08:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.chatteris.biz\/blog\/wp-content\/uploads\/2018\/01\/IMG_2078-Medium-1024x768.jpg\" \/>\n<meta name=\"author\" content=\"Ian\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@chatterisdotbiz\" \/>\n<meta name=\"twitter:site\" content=\"@chatterisdotbiz\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ian\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/\"},\"author\":{\"name\":\"Ian\",\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/#\\\/schema\\\/person\\\/8c24a0b1bf9624c7f930fe2f3a5b5f37\"},\"headline\":\"Sonoff Basic Voltage Free Relay Changeover Modification\",\"datePublished\":\"2018-01-15T20:44:32+00:00\",\"dateModified\":\"2022-04-16T10:08:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/\"},\"wordCount\":363,\"commentCount\":50,\"publisher\":{\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/#\\\/schema\\\/person\\\/8c24a0b1bf9624c7f930fe2f3a5b5f37\"},\"image\":{\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/01\\\/IMG_2078-Medium-1024x768.jpg\",\"keywords\":[\"Relay modification\",\"Sonoff\",\"Sonoff Basic\"],\"articleSection\":[\"Electronics\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/\",\"url\":\"https:\\\/\\\/www.chatteris.biz\\\/blog\\\/sonoff-basic-voltage-free-relay-changeover-modification\\\/\",\"name\":\"Sonoff Basic Voltage Free Relay Changeover Modification - 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