Take a look here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"Over on his blog, Eric is doing a great line in simple examples for controlling the GPIO pins of the Pi. This time, he covers PWM on the Pi by giving an example of an LED which changes brightness depending…<\/p>\n
Read more →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[50,39,51],"tags":[],"class_list":["post-12198","post","type-post","status-publish","format-standard","hentry","category-making","category-programming","category-tutorials"],"yoast_head":"\nSimple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod<\/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.recantha.co.uk\/blog\/?p=12198\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Simple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Over on his blog, Eric is doing a great line in simple examples for controlling the GPIO pins of the Pi. This time, he covers PWM on the Pi by giving an example of an LED which changes brightness depending…Read more →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\" \/>\n<meta property=\"og:site_name\" content=\"Raspberry Pi Pod\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/recantha\/\" \/>\n<meta property=\"article:published_time\" content=\"2015-03-13T09:29:28+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png\" \/>\n<meta name=\"author\" content=\"Michael Horne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@recantha\" \/>\n<meta name=\"twitter:site\" content=\"@recantha\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Horne\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Simple code and diagram to control PWM on the Raspberry Pi\",\"datePublished\":\"2015-03-13T09:29:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\"},\"wordCount\":59,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage\"},\"thumbnailUrl\":\"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png\",\"articleSection\":[\"Making\",\"Programming\",\"Tutorials\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\",\"name\":\"Simple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage\"},\"thumbnailUrl\":\"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png\",\"datePublished\":\"2015-03-13T09:29:28+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=12198\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage\",\"url\":\"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png\",\"contentUrl\":\"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=12198#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.recantha.co.uk\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Simple code and diagram to control PWM on the Raspberry Pi\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#website\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/\",\"name\":\"Raspberry Pi Pod\",\"description\":\"Experiences with the Raspberry Pi micro computer and microcontroller\",\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.recantha.co.uk\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\",\"name\":\"Raspberry Pi Pod\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/03\/cropped-PiPod-Logo-v3.png?fit=800%2C337&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/03\/cropped-PiPod-Logo-v3.png?fit=800%2C337&ssl=1\",\"width\":800,\"height\":337,\"caption\":\"Raspberry Pi Pod\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/recantha\/\",\"https:\/\/x.com\/recantha\",\"https:\/\/www.linkedin.com\/in\/recantha\/\",\"https:\/\/www.youtube.com\/channel\/UCK4F9blabxzmk8Inzhs8tpg\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\",\"name\":\"Michael Horne\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/479778b0677caadde0ceb54c4129804ef674914607e3ed0998808148357d10d8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/479778b0677caadde0ceb54c4129804ef674914607e3ed0998808148357d10d8?s=96&d=mm&r=g\",\"caption\":\"Michael Horne\"},\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Simple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.recantha.co.uk\/blog\/?p=12198","og_locale":"en_US","og_type":"article","og_title":"Simple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod","og_description":"Over on his blog, Eric is doing a great line in simple examples for controlling the GPIO pins of the Pi. This time, he covers PWM on the Pi by giving an example of an LED which changes brightness depending…Read more →","og_url":"https:\/\/www.recantha.co.uk\/blog\/?p=12198","og_site_name":"Raspberry Pi Pod","article_publisher":"https:\/\/www.facebook.com\/recantha\/","article_published_time":"2015-03-13T09:29:28+00:00","og_image":[{"url":"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png","type":"","width":"","height":""}],"author":"Michael Horne","twitter_card":"summary_large_image","twitter_creator":"@recantha","twitter_site":"@recantha","twitter_misc":{"Written by":"Michael Horne"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#article","isPartOf":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198"},"author":{"name":"Michael Horne","@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263"},"headline":"Simple code and diagram to control PWM on the Raspberry Pi","datePublished":"2015-03-13T09:29:28+00:00","mainEntityOfPage":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198"},"wordCount":59,"commentCount":0,"publisher":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#organization"},"image":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage"},"thumbnailUrl":"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png","articleSection":["Making","Programming","Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.recantha.co.uk\/blog\/?p=12198#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198","url":"https:\/\/www.recantha.co.uk\/blog\/?p=12198","name":"Simple code and diagram to control PWM on the Raspberry Pi - Raspberry Pi Pod","isPartOf":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage"},"image":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage"},"thumbnailUrl":"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png","datePublished":"2015-03-13T09:29:28+00:00","breadcrumb":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.recantha.co.uk\/blog\/?p=12198"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#primaryimage","url":"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png","contentUrl":"http:\/\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=12198#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.recantha.co.uk\/blog"},{"@type":"ListItem","position":2,"name":"Simple code and diagram to control PWM on the Raspberry Pi"}]},{"@type":"WebSite","@id":"https:\/\/www.recantha.co.uk\/blog\/#website","url":"https:\/\/www.recantha.co.uk\/blog\/","name":"Raspberry Pi Pod","description":"Experiences with the Raspberry Pi micro computer and microcontroller","publisher":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.recantha.co.uk\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.recantha.co.uk\/blog\/#organization","name":"Raspberry Pi Pod","url":"https:\/\/www.recantha.co.uk\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/03\/cropped-PiPod-Logo-v3.png?fit=800%2C337&ssl=1","contentUrl":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/03\/cropped-PiPod-Logo-v3.png?fit=800%2C337&ssl=1","width":800,"height":337,"caption":"Raspberry Pi Pod"},"image":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/recantha\/","https:\/\/x.com\/recantha","https:\/\/www.linkedin.com\/in\/recantha\/","https:\/\/www.youtube.com\/channel\/UCK4F9blabxzmk8Inzhs8tpg"]},{"@type":"Person","@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263","name":"Michael Horne","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/479778b0677caadde0ceb54c4129804ef674914607e3ed0998808148357d10d8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/479778b0677caadde0ceb54c4129804ef674914607e3ed0998808148357d10d8?s=96&d=mm&r=g","caption":"Michael Horne"},"url":"https:\/\/www.recantha.co.uk\/blog\/?author=1"}]}},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2RsaV-3aK","jetpack-related-posts":[{"id":3248,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=3248","url_meta":{"origin":12198,"position":0},"title":"Controlling servo motors on the #RaspberryPi","author":"Michael Horne","date":"28 March 2013","format":false,"excerpt":"As part of my \"SpacePi\" Raspberry Pi astronomy project, I want to be able to control the orientation of the camera module remotely. I want to be able to sit away from the camera rig and control where it is pointing using a web interface and (optionally, and because I\u2026","rel":"","context":"In "Camera module"","block_context":{"text":"Camera module","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=8"},"img":{"alt_text":"Better PWM on the Raspberry Pi","src":"\/blog\/wp-content\/uploads\/2013\/03\/PanTilt-1L1.jpg","width":350,"height":200},"classes":[]},{"id":6064,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=6064","url_meta":{"origin":12198,"position":1},"title":"Software PWM on a #RaspberryPi","author":"Michael Horne","date":"23 September 2013","format":false,"excerpt":"Mark Williams has been looking at how to generate signals to create PWM-like effects on the Pi. This lets him control the brightness of LEDs without using the PWM pin, albeit in a simulated kind of way. I'll let him explain it on his blog. His sample code is in\u2026","rel":"","context":"In "Programming"","block_context":{"text":"Programming","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=39"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3267,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=3267","url_meta":{"origin":12198,"position":2},"title":"Guzunty Pi for the #RaspberryPi reviewed by RasPi.TV","author":"Michael Horne","date":"29 March 2013","format":false,"excerpt":"Alex Eames over at RasPi.TV has reviewed the Guzunty Pi board from Derek Cambpbell. This low-cost, low-footprint board powered by an Xilinx chip has loads of digital input\/outputs and PWM pins. It looks like I could have another alternative for my PWM requirements. Read the review at RasPi.TV.","rel":"","context":"In "GPIO boards"","block_context":{"text":"GPIO boards","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=20"},"img":{"alt_text":"Guzunty Pi \u2013 Open Source CPLD board for the Raspberry Pi \u00bb RasPi.TV","src":"\/blog\/wp-content\/uploads\/2013\/03\/DSC_3860cropped-1024x8541.jpg","width":350,"height":200,"srcset":"\/blog\/wp-content\/uploads\/2013\/03\/DSC_3860cropped-1024x8541.jpg 1x, \/blog\/wp-content\/uploads\/2013\/03\/DSC_3860cropped-1024x8541.jpg 1.5x, \/blog\/wp-content\/uploads\/2013\/03\/DSC_3860cropped-1024x8541.jpg 2x"},"classes":[]},{"id":10249,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=10249","url_meta":{"origin":12198,"position":3},"title":"Access PWM on the #RaspberryPi using C++","author":"Michael Horne","date":"7 July 2014","format":false,"excerpt":"Hussam Al-Hertani has blogged a C++ class he's written to access pin 18 on the Raspberry Pi. This is the only hardware PWM pin on the Pi.\u00a0Read about it here.","rel":"","context":"In "Programming"","block_context":{"text":"Programming","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=39"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":13012,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=13012","url_meta":{"origin":12198,"position":4},"title":"Raspberry Pi add-on board RasPiO Duino gets new PWM video","author":"Michael Horne","date":"24 July 2015","format":false,"excerpt":"Alex Eames has been busy creating a new video for owners of the excellent RasPiO Duino board. This one takes you through experiments you can do with the PWM pins on the Duino and helps you to create a colour-fading ball display using a ping-pong ball as a diffuser. You\u2026","rel":"","context":"In "GPIO boards"","block_context":{"text":"GPIO boards","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=20"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2015\/07\/duino-pwm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2015\/07\/duino-pwm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2015\/07\/duino-pwm.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":2141,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=2141","url_meta":{"origin":12198,"position":5},"title":"PWM with the #RaspberryPi","author":"Michael Horne","date":"10 February 2013","format":false,"excerpt":"Over at RaspiRobot, Peter Mansvelder has used an L298N H bridge module to generate PWM signals from the Pi Read his article here \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/i.ebayimg.com\/t\/Dual-H-Bridge-DC-Stepper-Motor-Drive-Controller-Board-Module-Arduino-L298N-\/00\/s\/NDUzWDUwMA%3D%3D\/%24T2eC16h%2C%21y0E9s2S9K11BP5tsrv0DQ~~60_12.JPG?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/12198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12198"}],"version-history":[{"count":1,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/12198\/revisions"}],"predecessor-version":[{"id":12199,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/12198\/revisions\/12199"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"https:\/\/i0.wp.com\/3.bp.blogspot.com\/-sN4Rqyili_g\/VQH4w8JQ6hI\/AAAAAAAAMg4\/iQPblj-TtCg\/s1600\/GPIO_21_LED_Button.png?resize=560%2C382\")
<\/p>\n