{"id":16965,"date":"2017-06-22T11:30:50","date_gmt":"2017-06-22T10:30:50","guid":{"rendered":"http:\/\/www.recantha.co.uk\/blog\/?p=16965"},"modified":"2017-06-22T09:55:23","modified_gmt":"2017-06-22T08:55:23","slug":"automating-a-coral-reef-tank-with-a-raspberry-pi","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=16965","title":{"rendered":"Automating a coral reef tank with a Raspberry Pi"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16967\" src=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?resize=560%2C420&#038;ssl=1\" alt=\"\" width=\"560\" height=\"420\" srcset=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?resize=560%2C420&amp;ssl=1 560w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?resize=260%2C195&amp;ssl=1 260w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?resize=160%2C120&amp;ssl=1 160w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/a><\/p>\n<p>Ranjib Dey loves his salt water aquarium which is home to a miniature, living, coral reef. It takes a lot of expertise and monitoring to keep this fragile ecosystem alive and to do it he has decided to bring in a little bit of Raspberry Pi know-how. The system, called <em>reef-pi<\/em>, which comprises the Pi, some relays and an analogue-to-digital converter to grab sensor readings, is growing all the time and currently has the following features:<\/p>\n<ul>\n<li>AC 110\/220v equipment control (on demand and periodically based on timers)<\/li>\n<li>DC pump velocity and LED based light intensity control (using PCA9685 PWM driver)<\/li>\n<li>Dawn to dusk lighting setup<\/li>\n<li>Temperature and similar sensor (pH, ORP etc) integration using MCP3008 analog to digital converter<\/li>\n<li>Automated photo capture (using Raspberry Pi camera)<\/li>\n<li>Touch screen and web based interface (allows for directly controlling the Pi using touch screen or by accessing the web UI from mobile or tablet)<\/li>\n<li>Adafruit.io integration (temperature and similar data will be sent to <a href=\"http:\/\/adafruit.io\/\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?hl=en&amp;q=http:\/\/adafruit.io&amp;source=gmail&amp;ust=1497971651276000&amp;usg=AFQjCNEW-B9wTDI_x-zjBNojbpnrAdo7Iw\">adafruit.io<\/a>, where users can build their dashboard\/triggers etc)<\/li>\n<li>PID controller is integrated to allow for temperature regulation and other failsafe measures<\/li>\n<\/ul>\n<p>You can <a href=\"https:\/\/github.com\/ranjib\/reef-pi\" target=\"_blank\" rel=\"noopener\">read more about the system, which is written in Go, on his GitHub repository<\/a>: there&#8217;s a full bill-of-materials and all the code on there.<\/p>\n<p><a href=\"https:\/\/makezine.com\/2017\/06\/21\/automate-coral-reef-tank-raspberry-pi\/\" target=\"_blank\" rel=\"noopener\"><em>Thanks to Make for spotting this one<\/em><\/a><em>.<\/em><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16968\" src=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=560%2C514&#038;ssl=1\" alt=\"\" width=\"560\" height=\"514\" srcset=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=300%2C275&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=768%2C704&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=560%2C514&amp;ssl=1 560w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=260%2C238&amp;ssl=1 260w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_pi-1.jpg?resize=160%2C147&amp;ssl=1 160w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ranjib Dey loves his salt water aquarium which is home to a miniature, living, coral reef. It takes a lot of expertise and monitoring to keep this fragile ecosystem alive and to do it he has decided to bring in&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":16967,"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":[54,16,69,26,50,70,39,68,62],"tags":[409,410],"class_list":["post-16965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accessories","category-dsi-display","category-environment","category-internet-of-things","category-making","category-nature","category-programming","category-science","category-sensors","tag-coral-reef","tag-fish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Automating a coral reef tank with a 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=16965\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Automating a coral reef tank with a Raspberry Pi - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Ranjib Dey loves his salt water aquarium which is home to a miniature, living, coral reef. It takes a lot of expertise and monitoring to keep this fragile ecosystem alive and to do it he has decided to bring in&hellip;Read more &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\" \/>\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=\"2017-06-22T10:30:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i1.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?fit=640%2C480&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"480\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\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=16965#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Automating a coral reef tank with a Raspberry Pi\",\"datePublished\":\"2017-06-22T10:30:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\"},\"wordCount\":228,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16965#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/06\/reef_fish.jpg?fit=640%2C480&ssl=1\",\"keywords\":[\"coral reef\",\"fish\"],\"articleSection\":[\"Accessories\",\"DSI display\",\"Environment\",\"Internet of things\",\"Making\",\"Nature\",\"Programming\",\"Science\",\"Sensors\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=16965#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16965\",\"name\":\"Automating a coral reef tank with a Raspberry Pi - 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Let's start with Maplin. On their website, they are currently showing out-of-stock on three items of interest. I daresay they'll be back in stock\u2026","rel":"","context":"In &quot;Accessories&quot;","block_context":{"text":"Accessories","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=54"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maplin.co.uk\/images\/v3\/maplin-logo.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5783,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=5783","url_meta":{"origin":16965,"position":1},"title":"#RaspberryPi moisture sensor tutorial","author":"Michael Horne","date":"7 September 2013","format":false,"excerpt":"Jeremy Blythe has written an excellent, in-depth tutorial to help you read moisture levels using an analog sensor. Particularly of interest to me is the wiring up of a MCP3008 analog-to-digital converter. It will come in most useful when I decouple the Nwazet Key Lime Pi and replace it with\u2026","rel":"","context":"In &quot;Geeky Techiness&quot;","block_context":{"text":"Geeky Techiness","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=22"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9146,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9146","url_meta":{"origin":16965,"position":2},"title":"Cheap ultrasonic distance sensor for the #RaspberryPi available from @Phenoptix","author":"Michael Horne","date":"30 March 2014","format":false,"excerpt":"The fine folks over at Phenoptix have just started selling the SR-04 ultrasonic distance sensor for \u00a31.99. It comes with a couple of resistors to protect your Pi. All they need now is some instructions on using it with your Pi, but that's a fairly straightforward thing to do and,\u2026","rel":"","context":"In &quot;Robotics&quot;","block_context":{"text":"Robotics","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=45"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/cdn.shopify.com\/s\/files\/1\/0187\/3430\/products\/US1_-_Copy_large.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":19245,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=19245","url_meta":{"origin":16965,"position":3},"title":"New power board for the Raspberry Pi on Kickstarter is perfect for an in-car situation","author":"Michael Horne","date":"2 December 2018","format":false,"excerpt":"Good evening all. I just thought I'd share with you this Kickstarter for a Raspberry Pi power board. Designed to go in a car, and to take a 12V input and a signal from the ignition, the board sports the following features: 12V power input (reduced to 5V for the\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\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/12\/powerboard.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/12\/powerboard.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/12\/powerboard.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/12\/powerboard.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4911,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=4911","url_meta":{"origin":16965,"position":4},"title":"Picorder, version 2 &#8211; #RaspberryPi has sensor-y overload","author":"Michael Horne","date":"2 July 2013","format":false,"excerpt":"Pardon the pun in the title, couldn't resist. Here is a two-part video I've just shot of the Picorder version 2. I'm just about to work on version 3, so it seemed the perfect time to document my work so far. Part 1: Part 2 Here's a list of the\u2026","rel":"","context":"With 8 comments","block_context":{"text":"With 8 comments","link":"https:\/\/www.recantha.co.uk\/blog\/?p=4911#comments"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14892,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=14892","url_meta":{"origin":16965,"position":5},"title":"What&#8217;s inside the fridge? Using a Raspberry Pi to take stock","author":"Michael Horne","date":"14 June 2016","format":false,"excerpt":"Mike Moyer was tired of seeing Samsung commercials for the Family Hub refrigerator with the built-in camera and decided to make his own using a Raspberry Pi, a webcam\u00a0and a light sensor. Every time the fridge is opened, the Pi takes a picture of the contents. He used\u00a0a buck converter\u2026","rel":"","context":"In &quot;Internet of things&quot;","block_context":{"text":"Internet of things","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=26"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/06\/inourfridge.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/06\/inourfridge.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2016\/06\/inourfridge.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16965","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=16965"}],"version-history":[{"count":1,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16965\/revisions"}],"predecessor-version":[{"id":16969,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16965\/revisions\/16969"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/media\/16967"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}