{"id":19,"date":"2013-05-01T14:43:47","date_gmt":"2013-05-01T14:43:47","guid":{"rendered":"https:\/\/ca.rstenpresser.de\/blag\/?p=19"},"modified":"2013-12-05T11:49:06","modified_gmt":"2013-12-05T11:49:06","slug":"building-a-quadcopter-electronics","status":"publish","type":"post","link":"https:\/\/ca.rstenpresser.de\/blag\/2013\/05\/building-a-quadcopter-electronics\/","title":{"rendered":"Building a quadcopter &#8211; Electronics"},"content":{"rendered":"<p><a href=\"https:\/\/ca.rstenpresser.de\/blag\/blog\/2013\/05\/01\/building-a-quadcopter-electronics\/img_0967-small\/\" rel=\"attachment wp-att-20\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-20\" title=\"Workspace\" src=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_-1024x490.jpg\" alt=\"\" width=\"450\" height=\"215\" srcset=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_-1024x490.jpg 1024w, https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_-300x143.jpg 300w, https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_.jpg 1600w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/a>This is how my Workspace looks after a few hours of debugging \ud83d\ude42<\/p>\n<p>I did some work on quadcopter-frames in the past, so inspired by the <a href=\"http:\/\/ng.uavp.ch\/FrontPage\" target=\"_blank\">NG-UAVP-Project<\/a> i decided to build my own quadcopter.<\/p>\n<p>Since those guys offer blank PCBs i ordered some and build a Flight-Controller (hw0.24-mini-r2) and a Quad-Brushless-Controller (ngblc-r2). After some trouble with customs\/taxes and missing parts i was finally able to assemble and test both boards. As always not everything works out of the box (soldering errors, missing parts, &#8230;).<\/p>\n<ul>\n<li>Make sure to populate R68\/R69. Those are current-limiting resistors for the backup battery for the Venus-GPS and the RTC. I left them open in the first place sind i didnt populate the battery. However, the Venus-GPS needs power at the Vbat-Pin to work. I spend about 3 hours searching for errors in the serial-communication :\/<\/li>\n<li>Check the supply voltages of each chip. The coil in the the LC-Filter for the MPU-Accellerometer was broken; however the MPU somehow still worked (eg got some supply current over clamping diodes), but did not answer SPI-requests correctly.<\/li>\n<li>Cabeling is also an issue. The picoblade connectors are nice and small, but sometimes dont give good contact. I had some issues with the external-i2c-sensor bus because one pin didnt provide good contact.<\/li>\n<\/ul>\n<p>There are still some open issues:<\/p>\n<ul>\n<li>The LIS3L-Accelerometer wont get recognized on the SPI-Bus<\/li>\n<li>On the ngblc there seems to be at least on misplaced part. On of the supply-voltages drops down because of overcurrent. I am still investigating this.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>As next steps i will finish the mechanical setup. Mount the motors to the frame and do some wiring.\n\t\t<div id='gallery-1' class='gallery galleryid-19 gallery-columns-3 gallery-size-thumbnail gallery1'><script type=\"text\/javascript\">\r\n\/\/ <![CDATA[\r\n\tjQuery(document).ready(function () {\r\n\t\tjQuery(\".gallery1 a\").attr(\"rel\",\"gallery1\");\t\r\n\t\tjQuery('a[rel=\"gallery1\"]').colorbox({maxWidth:\"95%\", maxHeight:\"95%\",title: function(){ return jQuery(this).children().attr(\"alt\"); }, });\r\n\t});\r\n\/\/ ]]>\r\n<\/script>\n<figure class=\"gallery-item\">\n<div class=\"gallery-icon\">\r\n<a href=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_.jpg\" title=\"\" rel=\"gallery1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/IMG_0967.small_-150x150.jpg\" width=\"150\" height=\"150\" alt=\"\" \/><\/a>\r\n<\/div><\/figure><figure class=\"gallery-item\">\n<div class=\"gallery-icon\">\r\n<a href=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/mpu6000-miso_and_cs.png\" title=\"\" rel=\"gallery1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/mpu6000-miso_and_cs-150x150.png\" width=\"150\" height=\"150\" alt=\"\" \/><\/a>\r\n<\/div><\/figure><figure class=\"gallery-item\">\n<div class=\"gallery-icon\">\r\n<a href=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/mini-ng-frame.jpg\" title=\"\" rel=\"gallery1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ca.rstenpresser.de\/wp-files\/2013\/05\/mini-ng-frame-150x150.jpg\" width=\"150\" height=\"150\" alt=\"\" \/><\/a>\r\n<\/div><\/figure>\r\n\t\t<\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is how my Workspace looks after a few hours of debugging \ud83d\ude42 I did some work on quadcopter-frames in the past, so inspired by the NG-UAVP-Project i decided to build my own quadcopter. Since those guys offer blank PCBs i ordered some and build a Flight-Controller (hw0.24-mini-r2) and a Quad-Brushless-Controller (ngblc-r2). After some trouble &hellip; <a href=\"https:\/\/ca.rstenpresser.de\/blag\/2013\/05\/building-a-quadcopter-electronics\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Building a quadcopter &#8211; Electronics<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[11,16,12,110,13,15],"_links":{"self":[{"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/posts\/19"}],"collection":[{"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":16,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":114,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/posts\/19\/revisions\/114"}],"wp:attachment":[{"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ca.rstenpresser.de\/blag\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}