{"id":575,"date":"2015-01-07T08:16:47","date_gmt":"2015-01-07T06:16:47","guid":{"rendered":"http:\/\/www.itluxembourg.lu\/site\/?page_id=575"},"modified":"2019-09-07T19:33:45","modified_gmt":"2019-09-07T17:33:45","slug":"ulrs-additional-channels","status":"publish","type":"page","link":"https:\/\/www.itluxembourg.lu\/site\/ulrs-additional-channels\/","title":{"rendered":"Ultimate LRS extension : 16 servo channels"},"content":{"rendered":"<h1><strong>Feature description<\/strong><\/h1>\n<p>Having more than 8 RC channels is more and more required especially for RC planes. It&#8217;s not unusual to have such a setup on an RC\u00a0plane :<\/p>\n<ul>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 1 : left aileron<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 2 : rudder<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 3 : throttle<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 4 : elevator<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 5 : right aileron<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 6 : camera tilt<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 7 : camera pan<\/span><\/li>\n<li style=\"padding-left: 30px;\"><span style=\"color: #000000;\">CH 8 : APM mode<\/span><\/li>\n<\/ul>\n<p>Which leaves no channels for additional functions such as flaps, airbrakes, landing gear, lights, parachute and so on.<\/p>\n<p>The beta version of Ultimate LRS provides the ability to use 16 channels rather than 8. Many RC transmitters such as FrSky Taranis or 9xr can send 16 or more RC channels.<\/p>\n<h1><strong>Hardware setup<\/strong><\/h1>\n<p>The 16 channels are available on the RX in different ways :<\/p>\n<ol>\n<li>ULRS provides a serial PPM for an APM or Pixhawk or any FC accepting serial PPM. This option is however limited by the ability of the flight controller to manage the additional channels, for example APM is limited to 11 channels.<\/li>\n<li>Using a PPM to servo converter such as this one.<\/li>\n<li><strong>Recommended option:\u00a0<\/strong>\n<ul>\n<li>Use an <strong><a href=\"https:\/\/www.adafruit.com\/products\/815\" target=\"_blank\" rel=\"noopener noreferrer\">Adafruit I\u00b2C to 16 servos module<\/a><\/strong><\/li>\n<li>Remark : requires\u00a0Ultimate LRS beta 2.30+<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h1><strong>Connection diagram<\/strong><\/h1>\n<p><a href=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram.png\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1200\" src=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram.png\" alt=\"adafruit-diagram\" width=\"1600\" height=\"1761\" srcset=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram.png 1600w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram-510x561.png 510w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram-273x300.png 273w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram-768x845.png 768w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/12\/adafruit-diagram-930x1024.png 930w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1384\" src=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225-1024x683.jpg\" alt=\"DSC_8225\" width=\"530\" height=\"354\" srcset=\"https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225-1024x683.jpg 1024w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225-510x340.jpg 510w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225-300x200.jpg 300w, https:\/\/www.itluxembourg.lu\/site\/wp-content\/uploads\/2015\/01\/DSC_8225-768x512.jpg 768w\" sizes=\"auto, (max-width: 530px) 100vw, 530px\" \/><\/a><\/p>\n<h1 style=\"text-align: left;\"><strong>Remarks<\/strong><\/h1>\n<ul>\n<li style=\"text-align: left;\">The Adafruit module must be connected before the ULRS is turned on (because of a specific initialization sequence sent at start-up)<\/li>\n<li style=\"text-align: left;\">This board is based on a PCA9685\u00a0chip (<a href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/PCA9685.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">datasheet<\/a>)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Feature description Having more than 8 RC channels is more and more required especially for RC planes. It&#8217;s not unusual to have such a setup on an RC\u00a0plane : CH<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":45,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-575","page","type-page","status-publish","hentry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/pages\/575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/comments?post=575"}],"version-history":[{"count":23,"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/pages\/575\/revisions"}],"predecessor-version":[{"id":3037,"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/pages\/575\/revisions\/3037"}],"wp:attachment":[{"href":"https:\/\/www.itluxembourg.lu\/site\/wp-json\/wp\/v2\/media?parent=575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}