{"id":653,"date":"2015-11-02T22:20:28","date_gmt":"2015-11-03T05:20:28","guid":{"rendered":"http:\/\/zethus.ca\/wp\/?p=653"},"modified":"2015-11-02T22:20:28","modified_gmt":"2015-11-03T05:20:28","slug":"obdii","status":"publish","type":"post","link":"https:\/\/zethus.ca\/wp\/?p=653","title":{"rendered":"OBDII"},"content":{"rendered":"<p><a href=\"https:\/\/zethus.ca\/wp\/wp-content\/uploads\/2015\/11\/IMG_1417.jpg\"><img decoding=\"async\" src=\"https:\/\/zethus.ca\/wp\/wp-content\/uploads\/2015\/11\/IMG_1417.jpg\" alt=\"\" \/><\/a>\u00a0The next project is a set of car gauges. \u00a0I&#8217;ve taken apart an ELM327 mini obd2 adapter, and removed the bluetooth board. \u00a0For testing I have this hooked up to a cp2102 usb to serial breakout and am talking to it with a serial terminal. Power is soldered on to the board and provided by a 12V wall wart. The next step is to hook it up to an esp8266 (esp-12) that can drive a bunch of oled displays. (see the previous post). \u00a0I won&#8217;t be using the wifi on the esp board, but the module is just so handy that it seems a logical choice. \u00a0I get 3.3v off of the ELM327 dongle, so it it just four wires from the dongle to the gauges.<\/p>\n<p>The dongle talks at 38400, eg:<\/p>\n<pre>&gt;01\r\nSEARCHING... UNABLE TO CONNECT\r\n&gt;ATZ\r\nELM327 v1.5 \r\n&gt;atrv \r\n11.9<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0The next project is a set of car gauges. \u00a0I&#8217;ve taken apart an ELM327 mini obd2 adapter, and removed the bluetooth board. \u00a0For testing I have this hooked up to a cp2102 usb to serial breakout and am talking to &hellip; <a href=\"https:\/\/zethus.ca\/wp\/?p=653\">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":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-653","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/posts\/653","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=653"}],"version-history":[{"count":3,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/posts\/653\/revisions"}],"predecessor-version":[{"id":657,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=\/wp\/v2\/posts\/653\/revisions\/657"}],"wp:attachment":[{"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zethus.ca\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}