{"id":14580,"date":"2016-04-18T16:38:31","date_gmt":"2016-04-18T15:38:31","guid":{"rendered":"http:\/\/www.recantha.co.uk\/blog\/?p=14580"},"modified":"2016-04-18T11:41:29","modified_gmt":"2016-04-18T10:41:29","slug":"calculate-pi-and-print-on-a-thermal-printer-from-a-raspberry-pi","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=14580","title":{"rendered":"Calculate Pi and print on a thermal printer from a Raspberry Pi"},"content":{"rendered":"<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/i0.wp.com\/cdn.instructables.com\/F35\/D4Z2\/IMKVQQ56\/F35D4Z2IMKVQQ56.MEDIUM.jpg?resize=560%2C361\" width=\"560\" height=\"361\" \/><\/p>\n<p>Billy has written an Instructable in which he explains how to calculate Pi in various ways before writing a method in Python code to do it. The result is then printed out on a <a href=\"https:\/\/www.adafruit.com\/products\/597\" target=\"_blank\">thermal printer from Adafruit<\/a>. The whole thing is controlled via buttons through the GPIO. <a href=\"http:\/\/www.instructables.com\/id\/PyPrintPi-on-a-Raspberry-Pi\/?ALLSTEPS\" target=\"_blank\">Read the tutorial here<\/a>\u00a0and see it working below:<\/p>\n<p><iframe loading=\"lazy\" title=\"Raspberry pi printing pi\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/b8lCvWcw3qk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Billy has written an Instructable in which he explains how to calculate Pi in various ways before writing a method in Python code to do it. The result is then printed out on a thermal printer from Adafruit. The whole&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\">Read more &rarr;<\/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":[54,50,49,51],"tags":[],"class_list":["post-14580","post","type-post","status-publish","format-standard","hentry","category-accessories","category-making","category-software","category-tutorials"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Calculate Pi and print on a thermal printer from 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=14580\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calculate Pi and print on a thermal printer from a Raspberry Pi - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Billy has written an Instructable in which he explains how to calculate Pi in various ways before writing a method in Python code to do it. The result is then printed out on a thermal printer from Adafruit. The whole&hellip;Read more &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\" \/>\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=\"2016-04-18T15:38:31+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/cdn.instructables.com\/F35\/D4Z2\/IMKVQQ56\/F35D4Z2IMKVQQ56.MEDIUM.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=14580#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Calculate Pi and print on a thermal printer from a Raspberry Pi\",\"datePublished\":\"2016-04-18T15:38:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\"},\"wordCount\":75,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=14580#primaryimage\"},\"thumbnailUrl\":\"http:\/\/cdn.instructables.com\/F35\/D4Z2\/IMKVQQ56\/F35D4Z2IMKVQQ56.MEDIUM.jpg\",\"articleSection\":[\"Accessories\",\"Making\",\"Software\",\"Tutorials\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=14580#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=14580\",\"name\":\"Calculate Pi and print on a thermal printer from a Raspberry Pi - 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It's sort of like a rubbish Polaroid, but it's more artistic than that. Using a piece of software called Draw\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.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/07\/cartoonify.jpg?fit=768%2C813&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/07\/cartoonify.jpg?fit=768%2C813&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/07\/cartoonify.jpg?fit=768%2C813&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/07\/cartoonify.jpg?fit=768%2C813&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":13527,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=13527","url_meta":{"origin":14580,"position":1},"title":"Raspberry Pi photo booth using a thermal printer","author":"Michael Horne","date":"10 October 2015","format":false,"excerpt":"Frederick\u00a0Vandenbosch\u00a0decided he wanted to make a photo booth. So, he took a thermal printer and connected it up to a\u00a0Raspberry Pi. Then he added the 7\" Raspberry Pi touch screen as a control interface and built a wooden surround for everything. It's a very neat set-up and he's written it\u2026","rel":"","context":"In &quot;Making&quot;","block_context":{"text":"Making","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=50"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/frederickvandenbosch.be\/wp-content\/uploads\/2015\/10\/merged-950x633.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/frederickvandenbosch.be\/wp-content\/uploads\/2015\/10\/merged-950x633.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/frederickvandenbosch.be\/wp-content\/uploads\/2015\/10\/merged-950x633.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/frederickvandenbosch.be\/wp-content\/uploads\/2015\/10\/merged-950x633.jpg?resize=700%2C400 2x"},"classes":[]},{"id":19121,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=19121","url_meta":{"origin":14580,"position":2},"title":"Create and print dynamic mazes using a Raspberry Pi and a thermal printer","author":"Michael Horne","date":"23 August 2018","format":false,"excerpt":"Mattias Jahnke (aka YouTube's Engineerish) has built this lovely project from a thermal printer\u00a0and a Raspberry Pi. Enclosed in a hand-modified box (gotta love a bit of Dremelling!), the Pi creates mazes using a technique known as recursive backtracking\u00a0and then sends them to the printer for printing. A button controls\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.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/08\/maze_printer.png?fit=1200%2C1190&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/08\/maze_printer.png?fit=1200%2C1190&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/08\/maze_printer.png?fit=1200%2C1190&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/08\/maze_printer.png?fit=1200%2C1190&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/08\/maze_printer.png?fit=1200%2C1190&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":14756,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=14756","url_meta":{"origin":14580,"position":3},"title":"Create an instant camera with a thermal printer and a Raspberry Pi","author":"Michael Horne","date":"15 May 2016","format":false,"excerpt":"Phillip Burgess has developed an instant camera using a Raspberry Pi, with camera module, plus a mini thermal printer from Adafruit (if you're in the UK, take a look for the same product at Makersify). It looks like a nice fun project, and nice bit of cardboard wrangling. So, if\u2026","rel":"","context":"In &quot;Camera module&quot;","block_context":{"text":"Camera module","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=8"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/cdn-learn.adafruit.com\/assets\/assets\/000\/032\/316\/medium800\/camera_Banner.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/cdn-learn.adafruit.com\/assets\/assets\/000\/032\/316\/medium800\/camera_Banner.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/cdn-learn.adafruit.com\/assets\/assets\/000\/032\/316\/medium800\/camera_Banner.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/cdn-learn.adafruit.com\/assets\/assets\/000\/032\/316\/medium800\/camera_Banner.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":16364,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=16364","url_meta":{"origin":14580,"position":4},"title":"Thermal-printing camera with a Raspberry Pi Zero","author":"Michael Horne","date":"8 February 2017","format":false,"excerpt":"Over on Hackaday.io, Pierre Muth has documented his build of a Raspberry Pi Zero-based camera that prints\u00a0photographs on an internal thermal printer. Called the\u00a0PolaPi-Zero, it uses an Adafruit Nano Thermal Printer\u00a0and some other parts as well as a 3D-printed case. The case files can be found here\u00a0and the code for\u2026","rel":"","context":"In &quot;3D printing&quot;","block_context":{"text":"3D printing","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=2"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/02\/polapi.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/02\/polapi.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/02\/polapi.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/02\/polapi.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/02\/polapi.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":20588,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=20588","url_meta":{"origin":14580,"position":5},"title":"Carnegie Mellon student retrofits a Polaroid camera with a Raspberry Pi, camera module and thermal printer","author":"Michael Horne","date":"23 September 2020","format":false,"excerpt":"Sam Zeloof, who is currently studying electrical engineering at Carnegie Mellon University as an undergraduate has taken an old Polaroid camera and retro-fitted it with a Raspberry Pi W, a camera module and a thermal printer. He added two LiPo batteries to provide the 7-8 volts needed by the printer\u2026","rel":"","context":"In &quot;Camera module&quot;","block_context":{"text":"Camera module","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=8"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2020\/09\/MzY5MDM0MQ.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2020\/09\/MzY5MDM0MQ.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2020\/09\/MzY5MDM0MQ.jpeg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2020\/09\/MzY5MDM0MQ.jpeg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2020\/09\/MzY5MDM0MQ.jpeg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14580","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=14580"}],"version-history":[{"count":1,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14580\/revisions"}],"predecessor-version":[{"id":14581,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14580\/revisions\/14581"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}