{"id":10923,"date":"2023-03-01T23:07:30","date_gmt":"2023-03-01T15:07:30","guid":{"rendered":"http:\/\/www.mateksys.com\/?post_type=portfolio&#038;p=10923"},"modified":"2026-01-29T16:38:46","modified_gmt":"2026-01-29T08:38:46","slug":"can-l4-bm","status":"publish","type":"portfolio","link":"https:\/\/www.mateksys.com\/?portfolio=can-l4-bm","title":{"rendered":"AP_Periph CAN Digital Power Monitor, CAN-L4-BM"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lldpga00-7a4e175b1839b7fade9fa1893edf424e\">\n#top .av-special-heading.av-lldpga00-7a4e175b1839b7fade9fa1893edf424e{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lldpga00-7a4e175b1839b7fade9fa1893edf424e .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lldpga00-7a4e175b1839b7fade9fa1893edf424e .av-subheading{\nfont-size:16px;\n}\n<\/style>\n<div  class='av-special-heading av-lldpga00-7a4e175b1839b7fade9fa1893edf424e av-special-heading-h2 blockquote modern-quote modern-centered  avia-builder-el-0  el_before_av_slideshow  avia-builder-el-first  av-linked-heading'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >AP_Periph CAN Digital Power Monitor, CAN-L4-BM<\/h2><div class='av-subheading av-subheading_below'><p>Current 0~204.8A, Voltage 0~85V, CAN\/DroneCAN protocol<\/p>\n<\/div><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<div  class='avia-slideshow av-ler6tblp-54db08b860d73bea5da77c9853c3c1aa avia-slideshow-featured_large av_slideshow avia-slide-slider  avia-builder-el-1  el_after_av_heading  el_before_av_icon_box  av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 40%;'><li  class='avia-slideshow-slide av-ler6tblp-54db08b860d73bea5da77c9853c3c1aa__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-10924 avia-img-lazy-loading-not-10924\"  src='https:\/\/www.mateksys.com\/wp-content\/uploads\/2023\/03\/CAN-L4-BM_1.jpg' width='1500' height='600' title='CAN-L4-BM_1' alt=''  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><\/ul><\/div>\n<article  class='iconbox iconbox_left av-lxbsw1kg-1eddb91940c840e7c64510b010edd80a  avia-builder-el-2  el_after_av_slideshow  el_before_av_icon_box '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconbox_content\"><header class=\"entry-content-header\"><div class=\"iconbox_icon heading-color\" aria-hidden='true' data-av_icon='\ue83e' data-av_iconfont='entypo-fontello'><\/div><h3 class='iconbox_content_title '  itemprop=\"headline\" >NOTIFICATION<\/h3><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><p><strong>It has recently come to our attention that counterfeit CAN-L4-BM products are circulating in the market.<\/strong><\/p>\n<p>Please purchase our products from authorized dealers\u00a0<a href=\"https:\/\/www.mateksys.com\/?page_id=1212\" target=\"_blank\" rel=\"noopener\">https:\/\/www.mateksys.com\/?page_id=1212<\/a><\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article>\n<article  class='iconbox iconbox_left av-j7pn1n-750003beeceaf8a81bdc052a8e2aaa4a  avia-builder-el-3  el_after_av_icon_box  el_before_av_tab_container '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconbox_content\"><header class=\"entry-content-header\"><div class=\"iconbox_icon heading-color\" aria-hidden='true' data-av_icon='\ue827' data-av_iconfont='entypo-fontello'><\/div><h3 class='iconbox_content_title '  itemprop=\"headline\" >Tips<\/h3><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><p>Due to limitations by AP_Periph firmware, the fw AP_Periph V1.7.0 and older do not support current readings greater than 90A.\u00a0 You can update the fw to <a href=\"https:\/\/firmware.ardupilot.org\/AP_Periph\/latest\/MatekL431-BattMon\/\" target=\"_blank\" rel=\"noopener\">latest<\/a>.\u00a0 \u00a0then set AP_Periph parameters <strong>BATT_MAX_AMPS = 204.8<\/strong> and <strong>BATT_SHUNT = 0.0002<\/strong>.<\/p>\n<p><a href=\"https:\/\/github.com\/ArduPilot\/ardupilot\/pull\/26465\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/ArduPilot\/ardupilot\/pull\/26465<\/a><\/p>\n<div id=\"gtx-trans\" style=\"position: absolute; left: 256px; top: 45.5938px;\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article>\n<div  class='tabcontainer av-ler6wjrw-2da45c76ca42b1bcaf6e3a76757f6ed9 top_tab  avia-builder-el-4  el_after_av_icon_box  avia-builder-el-last ' role='tablist'>\n<section class='av_tab_section av_tab_section av-1le93d7-c603fc29ea9ced07aa89d1ba648637d9'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='tab active_tab' role='tab' tabindex='0' data-fake-id='#tab-id-1' aria-controls='tab-id-1-content'  itemprop=\"headline\" >Gallery<\/div><div id='tab-id-1-content' class='tab_content active_tab_content' aria-hidden=\"false\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10925\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2023\/03\/NIN_0050.jpg\" alt=\"\" width=\"1500\" height=\"600\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10926\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2023\/03\/CAN-L4-BM_3.jpg\" alt=\"\" width=\"1500\" height=\"600\" \/><\/p>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-lwxq4r-d723bd1fc11f56a43f3ecfb25f2d34e5'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='tab' role='tab' tabindex='0' data-fake-id='#tab-id-2' aria-controls='tab-id-2-content'  itemprop=\"headline\" >Specifications<\/div><div id='tab-id-2-content' class='tab_content' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><ul>\n<li>CAN-L4-BM is a ultra-precise digital\u00a0power monitor based on TI INA239 &amp; ArudPilot AP_Periph firmware.<\/li>\n<li>The resistance of this conductive path is 200 \u03bc\u03a9 typical, providing low power loss in the application.<\/li>\n<li>With this device,\u00a0No calibration required,\u00a0 flight controller that support DroneCAN protocol can easily get accurate current &amp; bus voltage readouts via CAN bus.<\/li>\n<\/ul>\n<h3><strong>Specifications<\/strong><\/h3>\n<ul>\n<li>MCU: STM32L431xC, 256KB Flash<\/li>\n<li>INA239 85-V, 16-Bit, High-Precision Power monitor IC With SPI Interface<\/li>\n<li>Battery Voltage sense input: 0~85V<\/li>\n<li>Current Sense Range:\u00a0 0~204.8A<\/li>\n<li>Load current on current sensing resistor:\u00a0 150A(Continuous),\u00a0 204.8A(Burst)<\/li>\n<li>Voltage accuracy: \u00b1 0.1%<\/li>\n<li>Current accuracy: \u00b1 2%<\/li>\n<li>Interface\n<ul>\n<li>CAN, DroneCAN Protocol<\/li>\n<li>UART2, spare, DFU<\/li>\n<li>ST debug, SWCLK &amp; SWDIO<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>LED\n<ul>\n<li>Blue, Fast blinking,\u00a0 Booting<\/li>\n<li>Blue, Slow blinking, working<\/li>\n<li>Red, 3.3V indicator<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>Power supply for CAN-L4-BM board : 4.5~5.5V\u00a0 @5V pad\/pin<\/li>\n<li>Power consumption: 10mA<\/li>\n<li><span data-slate-fragment=\"JTdCJTIyb2JqZWN0JTIyJTNBJTIyZG9jdW1lbnQlMjIlMkMlMjJkYXRhJTIyJTNBJTdCJTdEJTJDJTIybm9kZXMlMjIlM0ElNUIlN0IlMjJvYmplY3QlMjIlM0ElMjJibG9jayUyMiUyQyUyMnR5cGUlMjIlM0ElMjJwYXJhZ3JhcGglMjIlMkMlMjJpc1ZvaWQlMjIlM0FmYWxzZSUyQyUyMmRhdGElMjIlM0ElN0IlN0QlMkMlMjJub2RlcyUyMiUzQSU1QiU3QiUyMm9iamVjdCUyMiUzQSUyMnRleHQlMjIlMkMlMjJsZWF2ZXMlMjIlM0ElNUIlN0IlMjJvYmplY3QlMjIlM0ElMjJsZWFmJTIyJTJDJTIydGV4dCUyMiUzQSUyMk9wZXJhdGluZyUyMFRlbXBlcmF0dXJlcyUyMiUyQyUyMm1hcmtzJTIyJTNBJTVCJTVEJTdEJTVEJTdEJTVEJTdEJTVEJTdE\">Operating Temperatures: -40~85 \u00b0C<\/span><\/li>\n<\/ul>\n<ul>\n<li>Physical\n<ul>\n<li>Board Size: 30mm*22mm*3mm.\u00a0 4g<\/li>\n<li>3D file :\u00a0<a href=\"..\/Downloads\/other\/CAN-L4-BM_step.zip\" target=\"_blank\" rel=\"noopener\">CAN-L4-BM_STEP.zip<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>Firmware\n<ul>\n<li>ArduPilot AP_Periph\u00a0\u00a0<a href=\"https:\/\/firmware.ardupilot.org\/AP_Periph\/latest\/MatekL431-BattMon\/\" target=\"_blank\" rel=\"noopener\">MatekL431-BattMon<\/a><\/li>\n<li>Update via DroneCAN GUI Tool<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>Parameters\n<ul>\n<li>CAN_P1_DRIVER = 1 if attached to CAN bus1 port or CAN_P2_DRIVER = 1 if attached to CAN bus2 port<\/li>\n<li><strong>BATTx_MONITOR = 8<\/strong> (DroneCAN-BatteryInfo)<\/li>\n<li>BATTx_OPTIONS = 1<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><strong>Packing<\/strong><\/h3>\n<ul>\n<li>1x CAN-L4-BM board<\/li>\n<li>1x JST-GH-4P to JST-GH-4P 20cm silicon wire<\/li>\n<\/ul>\n<h3><strong>Tips<\/strong><\/h3>\n<ul>\n<li>The big pad on the bottom side is a dead pad. No any circuit network on it.<\/li>\n<li>Solder the positive wires as close as possible to both sides of the current sensing resistor.<\/li>\n<li>2 ears for mounting can be cut off if you don&#8217;t need it.<\/li>\n<li>If the CAN wires are too long, bridge the &#8220;120R&#8221; jumper.<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-195dlwr-eef9acdadcdad92a6b2a8d6a231ae5c9'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='tab' role='tab' tabindex='0' data-fake-id='#tab-id-3' aria-controls='tab-id-3-content'  itemprop=\"headline\" >Wiring<\/div><div id='tab-id-3-content' class='tab_content' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10927\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2023\/03\/CAN-L4-BM_Wiring.jpg\" alt=\"\" width=\"1500\" height=\"2257\" \/><\/p>\n<\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":10928,"comment_status":"closed","ping_status":"closed","template":"","tags":[179,171,101,202],"portfolio_entries":[175,221,226,246],"class_list":["post-10923","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","tag-ap_periph","tag-can","tag-current-sensor","tag-dronecan","portfolio_entries-ardupilot","portfolio_entries-dronecan","portfolio_entries-hv","portfolio_entries-sensors"],"_links":{"self":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/10923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/types\/portfolio"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10923"}],"version-history":[{"count":4,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/10923\/revisions"}],"predecessor-version":[{"id":13189,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/10923\/revisions\/13189"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/media\/10928"}],"wp:attachment":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10923"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10923"},{"taxonomy":"portfolio_entries","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fportfolio_entries&post=10923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}