{"id":26,"date":"2010-05-20T22:11:53","date_gmt":"2010-05-20T22:11:53","guid":{"rendered":"http:\/\/baulkolites.com\/wp\/?p=10"},"modified":"2010-05-20T22:11:53","modified_gmt":"2010-05-20T22:11:53","slug":"dmx-mega-break-out-pcb","status":"publish","type":"post","link":"http:\/\/mynoellights.com\/blog\/?p=26","title":{"rendered":"DMX Mega Break out PCB"},"content":{"rendered":"<p><em><strong>Why Bother?<\/strong><\/em><\/p>\n<p>When prototyping new DMX controllers a lot of the time is spent wiring up similar connections all the time, like the USART for RS-485 driver and an ISP connector, to program the uC.\u00a0 This is where my <em>DMX Mega B\/O<\/em> board came to light.\u00a0 I virtually got 25 of these for nothing.\u00a0 One of the PCB suppliers offered 25 PCBs, up 100 sq cm for a fixed price.\u00a0 By tagging them on to a production board, I was able to maximise the allocated area.<\/p>\n<div id=\"attachment_177\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/baulkolites.com\/wp\/wp-content\/uploads\/2010\/05\/mega-breakout1.jpg\"><img aria-describedby=\"caption-attachment-177\" loading=\"lazy\" class=\"size-medium wp-image-177\" title=\"mega breakout1\" src=\"http:\/\/baulkolites.com\/wp\/wp-content\/uploads\/2010\/05\/mega-breakout1-300x198.jpg\" alt=\"DMX Mega Break out module\" width=\"300\" height=\"198\" \/><\/a><p id=\"caption-attachment-177\" class=\"wp-caption-text\">DMX &amp; AVR Mega88 breakout module<\/p><\/div>\n<p>I choose to use completely leaded devices for the DMX Mega Breakout board so the components can be reused.<br \/>\n<em><strong>Basic Specification of DMX Mega B\/O:<\/strong><\/em><\/p>\n<ul>\n<li>Uses AVR ATMega 48, 88,168<\/li>\n<li>On-board DMX interface<\/li>\n<li>By directional DMX ( essential for RDM)<\/li>\n<li>On-board Ceramic resonator<\/li>\n<li>On-board ISP connector<\/li>\n<li>All unused I\/F ports are available as individual pins including SCK, MISO and MOSI.<\/li>\n<\/ul>\n<p><em><strong>So how does it perform?<\/strong><\/em><\/p>\n<p>Other than stuffing the pin out for the ISP, so far it works well.\u00a0 This minor stuff up is easily fixed with a custom ISP cable.<\/p>\n<p>So if you don&#8217;t mind wiring a custom cable PCBs will be available from my Webstore shortly.\u00a0 The next run will not have this problem.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Why Bother? When prototyping new DMX controllers a lot of the time is spent wiring up similar connections all the time, like the USART for RS-485 driver and an ISP connector, to program the uC.\u00a0 This is where my DMX &hellip; <a href=\"http:\/\/mynoellights.com\/blog\/?p=26\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,5],"tags":[12,13,14,15,26],"_links":{"self":[{"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/26"}],"collection":[{"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26"}],"version-history":[{"count":0,"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/26\/revisions"}],"wp:attachment":[{"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mynoellights.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}