{"id":7527,"date":"2014-01-21T12:36:27","date_gmt":"2014-01-21T12:36:27","guid":{"rendered":"http:\/\/178.62.14.192\/?p=7527"},"modified":"2014-01-21T12:36:27","modified_gmt":"2014-01-21T12:36:27","slug":"make-a-laser-engraver-out-of-two-dvd-drives-and-a-raspberrypi","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=7527","title":{"rendered":"Make a laser engraver out of two DVD drives and a #RaspberryPi"},"content":{"rendered":"<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone\" alt=\"\" src=\"https:\/\/i0.wp.com\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg?resize=299%2C400&#038;ssl=1\" width=\"299\" height=\"400\" \/><\/p>\n<p>Xiang Zhai has done just that. He ripped the two laser diodes out of a pair of drives and then put them together with some other cheap components, attached a Pi for control and lo and behold he&#8217;s ended up with a laser engraver!<\/p>\n<p><a href=\"http:\/\/funofdiy.blogspot.co.uk\/2013\/10\/a-raspberry-pi-controlled-mini-laser.html\">Read more about it here<\/a><\/p>\n<p>Ian Miller followed this tutorial and expanded it a bit and created his own version and <a href=\"https:\/\/github.com\/iandouglas96\/engravR\">published his code<\/a>:<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/xxQ33cNIXxU\" height=\"315\" width=\"560\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Xiang Zhai has done just that. He ripped the two laser diodes out of a pair of drives and then put them together with some other cheap components, attached a Pi for control and lo and behold he&#8217;s ended up&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\">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":[22,50,51],"tags":[],"class_list":["post-7527","post","type-post","status-publish","format-standard","hentry","category-geeky-techiness","category-making","category-tutorials"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Make a laser engraver out of two DVD drives and a #RaspberryPi - 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=7527\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Make a laser engraver out of two DVD drives and a #RaspberryPi - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Xiang Zhai has done just that. He ripped the two laser diodes out of a pair of drives and then put them together with some other cheap components, attached a Pi for control and lo and behold he&#8217;s ended up&hellip;Read more &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\" \/>\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=\"2014-01-21T12:36:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.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=7527#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Make a laser engraver out of two DVD drives and a #RaspberryPi\",\"datePublished\":\"2014-01-21T12:36:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\"},\"wordCount\":81,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage\"},\"thumbnailUrl\":\"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg\",\"articleSection\":[\"Geeky Techiness\",\"Making\",\"Tutorials\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\",\"name\":\"Make a laser engraver out of two DVD drives and a #RaspberryPi - Raspberry Pi Pod\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage\"},\"thumbnailUrl\":\"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg\",\"datePublished\":\"2014-01-21T12:36:27+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=7527\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage\",\"url\":\"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg\",\"contentUrl\":\"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=7527#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.recantha.co.uk\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Make a laser engraver out of two DVD drives and a #RaspberryPi\"}]},{\"@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":"Make a laser engraver out of two DVD drives and a #RaspberryPi - 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=7527","og_locale":"en_US","og_type":"article","og_title":"Make a laser engraver out of two DVD drives and a #RaspberryPi - Raspberry Pi Pod","og_description":"Xiang Zhai has done just that. He ripped the two laser diodes out of a pair of drives and then put them together with some other cheap components, attached a Pi for control and lo and behold he&#8217;s ended up&hellip;Read more &rarr;","og_url":"https:\/\/www.recantha.co.uk\/blog\/?p=7527","og_site_name":"Raspberry Pi Pod","article_publisher":"https:\/\/www.facebook.com\/recantha\/","article_published_time":"2014-01-21T12:36:27+00:00","og_image":[{"url":"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg","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=7527#article","isPartOf":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527"},"author":{"name":"Michael Horne","@id":"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263"},"headline":"Make a laser engraver out of two DVD drives and a #RaspberryPi","datePublished":"2014-01-21T12:36:27+00:00","mainEntityOfPage":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527"},"wordCount":81,"commentCount":1,"publisher":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#organization"},"image":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage"},"thumbnailUrl":"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg","articleSection":["Geeky Techiness","Making","Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.recantha.co.uk\/blog\/?p=7527#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527","url":"https:\/\/www.recantha.co.uk\/blog\/?p=7527","name":"Make a laser engraver out of two DVD drives and a #RaspberryPi - Raspberry Pi Pod","isPartOf":{"@id":"https:\/\/www.recantha.co.uk\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage"},"image":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage"},"thumbnailUrl":"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg","datePublished":"2014-01-21T12:36:27+00:00","breadcrumb":{"@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.recantha.co.uk\/blog\/?p=7527"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#primaryimage","url":"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg","contentUrl":"https:\/\/lh3.googleusercontent.com\/-NhET35e5HHE\/UmQ6XNquFGI\/AAAAAAAABlY\/1h6hy94DCJ4\/s400\/blogger-image-1422023181.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.recantha.co.uk\/blog\/?p=7527#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.recantha.co.uk\/blog"},{"@type":"ListItem","position":2,"name":"Make a laser engraver out of two DVD drives and a #RaspberryPi"}]},{"@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-1Xp","jetpack-related-posts":[{"id":5997,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=5997","url_meta":{"origin":7527,"position":0},"title":"Sensing a laser signal between the #RaspberryPi &#038; #Arduino","author":"Michael Horne","date":"18 September 2013","format":false,"excerpt":"Christian Perone has blogged about his experiments using a laser light emitted by an Arduino and a detection circuit using a light dependent resistor (LDR) with a Raspberry Pi. Raspberry Pi & Arduino: a laser pointer communication and a LDR voltage sigmoid | Pyevolve.","rel":"","context":"In &quot;Arduino&quot;","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"Raspberry Pi & Arduino: a laser pointer communication and a LDR voltage sigmoid | Pyevolve","src":"\/blog\/wp-content\/uploads\/2013\/09\/laser_ldr_on-300x1011.jpg","width":350,"height":200},"classes":[]},{"id":18216,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=18216","url_meta":{"origin":7527,"position":1},"title":"Running a laser cutter from a Raspberry Pi","author":"Michael Horne","date":"19 February 2018","format":false,"excerpt":"Alex Eames recently bought a laser cutter to add to his workspace. After playing with the toolchain for a bit, he discovered a piece of software, called K40 Whisperer, which could be installed on Linux and was compatible with his cutter. So, he installed the software and reduced the number\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\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/02\/k40.jpg?fit=700%2C394&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/02\/k40.jpg?fit=700%2C394&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/02\/k40.jpg?fit=700%2C394&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/02\/k40.jpg?fit=700%2C394&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":11844,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=11844","url_meta":{"origin":7527,"position":2},"title":"Raspberry Pi Wifi-Controlled Cat Laser Toy","author":"Michael Horne","date":"25 January 2015","format":false,"excerpt":"PLEASE READ THE NOTES OF CAUTION BELOW I wasn't going to feature this and then I thought I would with a note of caution. Here's an Adafruit tutorial in which you construct a remotely-operated laser-pointer cat toy. The project provides a web interface which you can use to control the\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\/learn.adafruit.com\/system\/assets\/assets\/000\/010\/946\/medium800\/raspberry_pi_setup2-resized.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/learn.adafruit.com\/system\/assets\/assets\/000\/010\/946\/medium800\/raspberry_pi_setup2-resized.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/learn.adafruit.com\/system\/assets\/assets\/000\/010\/946\/medium800\/raspberry_pi_setup2-resized.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/learn.adafruit.com\/system\/assets\/assets\/000\/010\/946\/medium800\/raspberry_pi_setup2-resized.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":13020,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=13020","url_meta":{"origin":7527,"position":3},"title":"DIY laser harp powered by a Raspberry Pi and RasPiO Duino","author":"Michael Horne","date":"25 July 2015","format":false,"excerpt":"Not much detail on this, but it's way too cool not to share. David Pride announced on Twitter that he has created a DIY laser harp. He uses a 50mW laser with a stepper motor to create beams of light and then LDR sensors detect beam breaks and the Pi\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":"https:\/\/i0.wp.com\/pbs.twimg.com\/media\/CKvu3G9W8AAUCOW.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/pbs.twimg.com\/media\/CKvu3G9W8AAUCOW.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/pbs.twimg.com\/media\/CKvu3G9W8AAUCOW.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":18984,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=18984","url_meta":{"origin":7527,"position":4},"title":"This Raspberry Pi-controlled laser pointer writes the weather out for you","author":"Michael Horne","date":"28 June 2018","format":false,"excerpt":"Please note: these types of lasers can damage your eyes - so please, use appropriate eye-protection. Tucker Shannon has taken a Raspberry Pi Zero and two stepper motor driver boards and then mounted a\u00a05mw, 405nm laser pointer on top. He's then programmed the Raspberry Pi to receive messages from\u00a0Google Assistant\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\/2018\/06\/laser_feature.gif?fit=800%2C450&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/06\/laser_feature.gif?fit=800%2C450&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/06\/laser_feature.gif?fit=800%2C450&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/06\/laser_feature.gif?fit=800%2C450&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":12787,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=12787","url_meta":{"origin":7527,"position":5},"title":"Raspberry Pi dog monitor &#8211; with lasers!","author":"Michael Horne","date":"18 June 2015","format":false,"excerpt":"Dave Young wanted to stop his dog from jumping up and taking food off the kitchen work surfaces (I can sympathise!) when he wasn't\u00a0in the room. So, he hooked up a laser detector circuit to a Raspberry Pi and programmed the Pi to play a recording of his voice to\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.element14.com\/community\/servlet\/JiveServlet\/downloadImage\/38-20252-223816\/401-226\/0528151441d.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\/7527","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=7527"}],"version-history":[{"count":0,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7527\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}