{"id":124,"date":"2015-08-11T19:45:23","date_gmt":"2015-08-11T19:45:23","guid":{"rendered":"http:\/\/justanotherelectronicsblog.com\/?p=124"},"modified":"2015-08-11T21:11:03","modified_gmt":"2015-08-11T21:11:03","slug":"a-tiny-mbed-compatible-dev-board","status":"publish","type":"post","link":"https:\/\/justanotherelectronicsblog.com\/?p=124","title":{"rendered":"A tiny MBED compatible dev board"},"content":{"rendered":"<p>I like the MBED boards, they are small, fast and the libraries and community are great. The only downside is the price. The cheapest official MBED board is around 50 euro&#8217;s and some cheaper supported boards like the ST nucleo boards don&#8217;t fit in a breadboard. I wanted to make a small MBED compatible dev board that fits in my breadboard and costs a lot less then the real MBED boards so I can just leave them in a project without caring too much.<\/p>\n<p>I decided to use the LPC11U24 as this is one of the two microcontrollers that is also used for the real MBED boards. I have had some bad experiences with the MBED libraries for the ST microcontrollers so I&#8217;ll stick to the well supported NXP one.\u00a0 For the rest a SMPS 5V to 3.3V was something I&#8217;d wanted. A linear regulator would get a little bit too hot if more then 250mA of current would be requested from the 3.3V line. I also made everything SMD, including the pinheaders. It just feels a bit cleaner for me to have zero through hole parts :)<\/p>\n<p>The end product looks like this and I shall call it: the Tinycortex, because I suck at making names:<\/p>\n<p><a href=\"http:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-133 \" src=\"http:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009-1024x577.jpg\" alt=\"WP_20150805_009\" width=\"637\" height=\"359\" srcset=\"https:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009-1024x577.jpg 1024w, https:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009-300x169.jpg 300w, https:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009.jpg 1776w\" sizes=\"auto, (max-width: 637px) 100vw, 637px\" \/><\/a><\/p>\n<p>It is even a bit smaller then the real MBED, has 32 IO pins and looks cute. What more to wish for :)<\/p>\n<p>In the next post I will show the pinout and how to use it in case anyone makes one and for the people I gave one as a reference.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I like the MBED boards, they are small, fast and the libraries and community are great. The only downside is the price. The cheapest official MBED board is around 50 euro&#8217;s and some cheaper supported boards like the ST nucleo boards don&#8217;t fit in a breadboard. I wanted to make a small MBED compatible dev [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_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_post_was_ever_published":false},"categories":[11],"tags":[13,16,15],"class_list":["post-124","post","type-post","status-publish","format-standard","hentry","category-microcontrollers","tag-arm","tag-diy","tag-tinycortex"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A tiny MBED compatible dev board - jaeblog<\/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:\/\/justanotherelectronicsblog.com\/?p=124\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A tiny MBED compatible dev board - jaeblog\" \/>\n<meta property=\"og:description\" content=\"I like the MBED boards, they are small, fast and the libraries and community are great. 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I wanted to make a small MBED compatible dev [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/justanotherelectronicsblog.com\/?p=124\" \/>\n<meta property=\"og:site_name\" content=\"jaeblog\" \/>\n<meta property=\"article:published_time\" content=\"2015-08-11T19:45:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-08-11T21:11:03+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/justanotherelectronicsblog.com\/wp-content\/uploads\/2015\/08\/WP_20150805_009-1024x577.jpg\" \/>\n<meta name=\"author\" content=\"riktw\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"riktw\" \/>\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:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124\"},\"author\":{\"name\":\"riktw\",\"@id\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/#\\\/schema\\\/person\\\/d77e39721321c4a472b49909a8f1982b\"},\"headline\":\"A tiny MBED compatible dev board\",\"datePublished\":\"2015-08-11T19:45:23+00:00\",\"dateModified\":\"2015-08-11T21:11:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124\"},\"wordCount\":266,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/justanotherelectronicsblog.com\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/WP_20150805_009-1024x577.jpg\",\"keywords\":[\"arm\",\"diy\",\"tinycortex\"],\"articleSection\":[\"Microcontrollers\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124\",\"url\":\"https:\\\/\\\/justanotherelectronicsblog.com\\\/?p=124\",\"name\":\"A tiny MBED compatible dev board - 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