{"id":2474,"date":"2013-02-26T07:10:50","date_gmt":"2013-02-26T07:10:50","guid":{"rendered":"http:\/\/178.62.14.192\/?p=2474"},"modified":"2013-02-26T07:10:50","modified_gmt":"2013-02-26T07:10:50","slug":"bicolour-led-square-pixel-matrix-with-i2c-backpack","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=2474","title":{"rendered":"Bicolour LED Square Pixel Matrix with I2C Backpack"},"content":{"rendered":"<p style=\"text-align: center;\"><a href=\"http:\/\/www.phenoptix.com\/collections\/new-products\/products\/bicolour-led-square-pixel-matrix-with-i2c-backback-by-adafruit-902\"><img src='\/blog\/wp-content\/uploads\/2013\/02\/id902_lrg_medium1.jpg' alt='Bicolour LED Square Pixel Matrix with I2C Backback by Adafruit 902 | phenoptix' \/><\/a><\/p>\n<p>Adafruit have created this lovely little LED matrix which would be a great addition to any bits box!<\/p>\n<p><a href=\"http:\/\/www.phenoptix.com\/collections\/new-products\/products\/bicolour-led-square-pixel-matrix-with-i2c-backback-by-adafruit-902\">Phenoptix are stocking this and you can buy one for a not-unreasonable \u00a314.89.<\/a><\/p>\n<p>It&#8217;s driven by I2C and a built-in driver chip so only needs 4 pins from your Pi, and I expect two of them are power and ground, so it&#8217;s really a very neat, efficient package.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adafruit have created this lovely little LED matrix which would be a great addition to any bits box! Phenoptix are stocking this and you can buy one for a not-unreasonable \u00a314.89. It&#8217;s driven by I2C and a built-in driver chip&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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":[22,20],"tags":[],"class_list":["post-2474","post","type-post","status-publish","format-standard","hentry","category-geeky-techiness","category-gpio-boards"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bicolour LED Square Pixel Matrix with I2C Backpack - 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=2474\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bicolour LED Square Pixel Matrix with I2C Backpack - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Adafruit have created this lovely little LED matrix which would be a great addition to any bits box! Phenoptix are stocking this and you can buy one for a not-unreasonable \u00a314.89. It&#8217;s driven by I2C and a built-in driver chip&hellip;Read more &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\" \/>\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=\"2013-02-26T07:10:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2013\/02\/id902_lrg_medium1.jpg\" \/>\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=2474#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Bicolour LED Square Pixel Matrix with I2C Backpack\",\"datePublished\":\"2013-02-26T07:10:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\"},\"wordCount\":76,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"articleSection\":[\"Geeky Techiness\",\"GPIO boards\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=2474#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=2474\",\"name\":\"Bicolour LED Square Pixel Matrix with I2C Backpack - 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One of\u2026","rel":"","context":"In &quot;Blinkies&quot;","block_context":{"text":"Blinkies","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=80"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/03\/11x7_matrix_breakout_2_of_4_1024x1024.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/03\/11x7_matrix_breakout_2_of_4_1024x1024.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/03\/11x7_matrix_breakout_2_of_4_1024x1024.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/03\/11x7_matrix_breakout_2_of_4_1024x1024.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2582,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=2582","url_meta":{"origin":2474,"position":3},"title":"Installing and enabling I2C on the #RaspberryPi running Raspbian","author":"Michael Horne","date":"2 March 2013","format":false,"excerpt":"I'm rather cheekily taking most of this from ThinkBowl.com as it's a brilliant, simple walk-through that I'd hate to lose if the site disappeared! 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The main board is HAT-sized and hosts the following: a relay a buzzer a button an IR transmitter (IR LED) an IR receiver (IR photo\u2026","rel":"","context":"In &quot;Crowdfunding&quot;","block_context":{"text":"Crowdfunding","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=13"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/c1.iggcdn.com\/indiegogo-media-prod-cld\/image\/upload\/c_limit%2Cw_620\/v1477729672\/ormvkdmr2gvr4tkiac8k.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/c1.iggcdn.com\/indiegogo-media-prod-cld\/image\/upload\/c_limit%2Cw_620\/v1477729672\/ormvkdmr2gvr4tkiac8k.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/c1.iggcdn.com\/indiegogo-media-prod-cld\/image\/upload\/c_limit%2Cw_620\/v1477729672\/ormvkdmr2gvr4tkiac8k.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":19880,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=19880","url_meta":{"origin":2474,"position":5},"title":"Adventures in I2C: clock stretching on the Raspberry Pi","author":"Michael Horne","date":"4 January 2020","format":false,"excerpt":"This is a bit complicated, technically, but I've been asked to document the issue just in case someone comes across it. 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