{"id":10073,"date":"2015-04-05T16:25:17","date_gmt":"2015-04-05T06:25:17","guid":{"rendered":"http:\/\/legoeng.local?p=10073&#038;preview_id=10073"},"modified":"2017-12-21T14:41:24","modified_gmt":"2017-12-21T03:41:24","slug":"building-with-rcxnxt-lamps-and-ev3-pieces","status":"publish","type":"post","link":"http:\/\/legoeng.local\/building-with-rcxnxt-lamps-and-ev3-pieces\/","title":{"rendered":"Building with RCX\/NXT lamps and EV3 pieces"},"content":{"rendered":"<figure id=\"attachment_10088\" aria-describedby=\"caption-attachment-10088\" style=\"width: 225px\" class=\"wp-caption alignright\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064236.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10088\" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064236-225x300.jpg\" alt=\"Traffic light assembly using RCX\/NXT lamps, coloured diffusers and wires, made with only EV3 Ed brick pieces\" width=\"225\" height=\"300\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064236-225x300.jpg 225w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064236.jpg 768w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064236-600x800.jpg 600w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><figcaption id=\"caption-attachment-10088\" class=\"wp-caption-text\">Traffic light assembly using RCX\/NXT lamps, coloured diffusers and wires, and built with EV3 Education pieces only<\/figcaption><\/figure>\n<p style=\"text-align: left;\"><em>On 27 February 2015, a small group of <a title=\"The EDGE\" href=\"http:\/\/legoeng.local\/about\/the-edge\/\">EDGErs<\/a> went to LEGOLAND for an EV3 Hackathon. This post documents one of the projects that came out of the event.<\/em><\/p>\n<p style=\"text-align: left;\">At the EV3 Hackathon, I was given the task of building a set of traffic lights to use on our Urban Network. It should have been relatively straight forward, right? However, limited LEGO bricks and options with the EV3 Education set made the task of fitting older generation lamps and their wires quite challenging.<\/p>\n<p>The problem came down to the simple fact that EV3 Education set (<a href=\"http:\/\/brickset.com\/inventories\/45544-1\" target=\"_blank\" rel=\"noopener\">45544<\/a>) does not come with any flat or regular &#8220;studded&#8221; LEGO bricks. Older generation sets came with such pieces, making it possible to easily attach to the square-shaped RCX\/NXT lamp wire module (<a href=\"http:\/\/brickset.com\/inventories\/8528-1\" target=\"_blank\" rel=\"noopener\">Converter Cable for Mindstorms NXT<\/a>) .<\/p>\n<p>One solution came down to simple bracing, front and back. Care was taken not to piggy back the wire-modules since the base and the top of each lamp had conductive points. Instead, lamp modules were fitted side-by-side. The following pictures show how the modules were packed together and braced on each side.<\/p>\n<figure id=\"attachment_10089\" aria-describedby=\"caption-attachment-10089\" style=\"width: 225px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064249.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10089\" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064249-225x300.jpg\" alt=\"Bracing from the rear\" width=\"225\" height=\"300\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064249-225x300.jpg 225w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064249.jpg 768w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064249-600x800.jpg 600w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><figcaption id=\"caption-attachment-10089\" class=\"wp-caption-text\">Bracing from the rear<\/figcaption><\/figure>\n<figure id=\"attachment_10087\" aria-describedby=\"caption-attachment-10087\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064217.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10087\" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064217-300x225.jpg\" alt=\"Rear bracing from another angle\" width=\"300\" height=\"225\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064217-300x225.jpg 300w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064217.jpg 1024w, http:\/\/legoeng.local\/wp-content\/uploads\/2015\/04\/IMG_20150228_064217-600x450.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-10087\" class=\"wp-caption-text\">Rear bracing from another angle<\/figcaption><\/figure>\n<p>The tops of each light assembly fitted into the round recesses of the side beam, and the brace behind the assembly kept the vertical beams together.<\/p>\n<p>The video below shows the traffic light working with a motion sensor.<\/p>\n<p><iframe loading=\"lazy\" title=\"Traffic lights\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/mg1STG44o64?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<div class=\"also-in-this-series\">\n<h3 class=\"series-title\">Also in <q>EDGE Hackathon 2015<\/q><\/h3>\n<ol start=\"1\">\n<li class=\"series-post\">\n\t\t\t<a href=\"http:\/\/legoeng.local\/boom-gate-intersection\/\" title=\"Boom-gate intersection (EV3 Hackathon 2015)\">Boom-gate intersection (EV3 Hackathon 2015)<\/a>\n\t\t<\/li>\n<li class=\"series-post\">\n\t\t\t<a href=\"http:\/\/legoeng.local\/building-with-rcxnxt-lamps-and-ev3-pieces\/\" title=\"Building with RCX\/NXT lamps and EV3 pieces\">Building with RCX\/NXT lamps and EV3 pieces<\/a>\n\t\t<\/li>\n<li class=\"series-post\">\n\t\t\t<a href=\"http:\/\/legoeng.local\/programming-bluetooth-on-ev3\/\" title=\"Programming Bluetooth on EV3\">Programming Bluetooth on EV3<\/a>\n\t\t<\/li>\n<\/ol>\n<p><a href=\"http:\/\/legoeng.local\/series\/edge-hackathon-2015\/\">View the entire series<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>On 27 February 2015, a small group of EDGErs went to LEGOLAND for an EV3 Hackathon. This post documents one of the projects that came out of the event. At the EV3 Hackathon, I was given the task of building a set of traffic lights to use on our Urban Network. It should have been [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":10085,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[159,502],"tags":[152,447,445],"_links":{"self":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/10073"}],"collection":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/comments?post=10073"}],"version-history":[{"count":0,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/10073\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media\/10085"}],"wp:attachment":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media?parent=10073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/categories?post=10073"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/tags?post=10073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}