{"id":9829,"date":"2022-02-22T20:38:25","date_gmt":"2022-02-22T12:38:25","guid":{"rendered":"http:\/\/www.mateksys.com\/?post_type=portfolio&#038;p=9829"},"modified":"2025-07-11T12:27:30","modified_gmt":"2025-07-11T04:27:30","slug":"crsf-sbus","status":"publish","type":"portfolio","link":"https:\/\/www.mateksys.com\/?portfolio=crsf-sbus","title":{"rendered":"ELRS CRSF to SBUS converter, 2pcs\/pkg"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-3e9b5e0a4f00fb7196497a81ab225a2f\">\n#top .av-special-heading.av-av_heading-3e9b5e0a4f00fb7196497a81ab225a2f{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-3e9b5e0a4f00fb7196497a81ab225a2f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-3e9b5e0a4f00fb7196497a81ab225a2f .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-3e9b5e0a4f00fb7196497a81ab225a2f av-special-heading-h2 blockquote modern-quote modern-centered  avia-builder-el-0  el_before_av_slideshow  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >ELRS CRSF to SBUS converter <\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<div  class='avia-slideshow av-kzy457jc-baa2d641a486346bddf839df17059629 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-kzy457jc-baa2d641a486346bddf839df17059629__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-9834 avia-img-lazy-loading-not-9834\"  src='https:\/\/www.mateksys.com\/wp-content\/uploads\/2022\/02\/CRSF-SBUS_1.jpg' width='1500' height='600' title='CRSF-SBUS_1' alt=''  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><\/ul><\/div>\n<article  class='iconbox iconbox_left av-l0xmkz9p-7c4654547b9d6a2b7a620bdab630fc28  avia-builder-el-2  el_after_av_slideshow  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='\ue83e' data-av_iconfont='entypo-fontello'><\/div><h3 class='iconbox_content_title '  itemprop=\"headline\" >Firmware Update<\/h3><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><p><strong>Pls update the CRSF-SBUS converter with firmware v1.1.0 when you receive the first batch of boards.<\/strong><\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article>\n<div  class='tabcontainer av-kzy44z0m-9a0f134b5e3e66fbd5c5e6bc3752957e top_tab  avia-builder-el-3  el_after_av_icon_box  avia-builder-el-last ' role='tablist'>\n<section class='av_tab_section av_tab_section av-36g5hh-fa1f5e16059a8069d7cced1cd04898df'  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\" >SKU: CRSF-SBUS<\/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-9832\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2022\/02\/CRSF-SBUS_2.jpg\" alt=\"\" width=\"1500\" height=\"1001\" \/><\/p>\n<h4><strong>Specifications<\/strong><\/h4>\n<ul>\n<li>Compatible with CRSF\/SBUS protocol receiver.<\/li>\n<li>Support CRSF to SBUS, or SBUS to CRSF conversion<\/li>\n<li>Battery voltage(RxBt) telemetry over CRSF protocol<\/li>\n<li>CRSF to SBUS latency &lt;7ms<\/li>\n<li>Rated voltage: 4~5.5V @5V pad,\u00a0 0~36V @VBAT pad<\/li>\n<li>No 5V regulator built-in,\u00a0 VBAT pad is just for battery voltage sensing.<\/li>\n<li>PCB size 15mm x 10mm,\u00a0 0.6g<\/li>\n<li>2pcs\/package<\/li>\n<\/ul>\n<h4><strong>LED status<\/strong><\/h4>\n<ul>\n<li>slow blinks: CRSF-SBUS board doesn&#8217;t receive CRSF or SBUS signal, e.g., receiver is not bound with transmitter, receiver is not connected to UART of CRSF-SBUS board.<\/li>\n<li>solid ON:\u00a0 CRSF-SBUS board and receiver are working normally.<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-2rtj5h-456f361fffce5cb83762d937ad8c7302'  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\" >Firmware update<\/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>Tool:\u00a0<a href=\"https:\/\/www.mateksys.com\/Downloads\/FC\/matek_configurator.exe\" target=\"_blank\" rel=\"noopener\">Matek Configurator<\/a><\/li>\n<li>Firmwares: <a href=\"https:\/\/www.mateksys.com\/downloads\/fw\/crsf_sbus_fw.zip\" target=\"_blank\" rel=\"noopener\">crsf_sbus_fw.zip<\/a><\/li>\n<li>Mar.19,2022,\u00a0 v1.1.0:\u00a0 Fixed a failsafe bug when CRSF-SBUS converter can&#8217;t get CRSF signal from receiver.<\/li>\n<\/ul>\n<div  class='hr av-2fix0x-e6de661829b74cabd18b2a385482c904 hr-full  avia-builder-el-4  avia-builder-el-no-sibling  hr-no-shadow'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<p><strong>Upgrade CRSF-SBUS via A or B<\/strong><\/p>\n<h4>A. USB-TTL modules,\u00a0 such as CP210x,\u00a0 FTDI<\/h4>\n<p>1. Wiring<\/p>\n<ul>\n<li>TX1\u00a0 &#8212;\u00a0 USB-TTL module RX<\/li>\n<li>RX1\u00a0 &#8212;\u00a0 USB-TTL module TX<\/li>\n<li>5V\u00a0 &#8212;\u00a0 USB-TTL module 5V<\/li>\n<li>G\u00a0 &#8212;\u00a0 USB-TTL module GND<\/li>\n<\/ul>\n<p>2. Bridge the jumper pad at bottom side with a drop of tin,\u00a0 or bridge it with tips of tweezer when powering on.<\/p>\n<p>3. Connect USB-TTL module to PC,<\/p>\n<p>Blue LED on CRSF-SBUS board will blink fast,\u00a0 it means CRSF-SBUS board is working in boot mode.<\/p>\n<p>now you can remove the jumper or remove it after flashing.<\/p>\n<p><span style=\"color: #0000ff;\">4. Open Matek configurator,\u00a0\u00a0Select COM port of USB-TTL, Baud rate 115200,\u00a0 Click &#8220;Connect&#8221;<\/span><\/p>\n<p><span style=\"color: #0000ff;\">5. OpenFile &#8220;crsf_sbus_vx.x.x.bin&#8221;<\/span><\/p>\n<p><span style=\"color: #0000ff;\">6. Click &#8220;Upgrade&#8221;<\/span><\/p>\n<p>7. After update, remove the jumper.<\/p>\n<h4>B. INAV\/BF serial passthrough<\/h4>\n<p>1. Wiring<\/p>\n<ul>\n<li>TX1\u00a0 &#8212;\u00a0 FC any spare UART_RX<\/li>\n<li>RX1\u00a0 &#8212;\u00a0 FC any spare UART_TX<\/li>\n<li>5V\u00a0 &#8212;\u00a0 FC 5V or 4V5<\/li>\n<li>G\u00a0 &#8212;\u00a0 FC GND<\/li>\n<\/ul>\n<p>2. Bridge the jumper pad at bottom side with a drop of tin,\u00a0 or bridge it with tips of tweezer when powering on.<\/p>\n<p>3. Connect FC USB to PC<\/p>\n<p>Blue LED on CRSF-SBUS board will blink fast,\u00a0 it means CRSF-SBUS board is working in boot mode.<\/p>\n<p>now you can remove the jumper or remove it after flashing.<\/p>\n<p>4. open INAV\/BF configurator, connect FC to configurator<\/p>\n<p>5. click INAV\/BF configurator &#8220;CLI&#8221; tab, type &#8220;serialpassthrough x 115200&#8221;,\u00a0 x = UART number -1,\u00a0 e.g. CRSF-SBUS board connect to FC UART4,\u00a0 type &#8220;serialpassthrough 3 115200&#8221;.<\/p>\n<p>6. Disconnect FC from configurator, make sure USB is still plugged in FC and LED on CRSF-SBUS board is still blinking fast.<\/p>\n<p><span style=\"color: #0000ff;\">7. Open Matek configurator,\u00a0\u00a0Select COM port of Flight controler,\u00a0 Baud rate 115200,\u00a0 Click &#8220;Connect&#8221;<\/span><\/p>\n<p><span style=\"color: #0000ff;\">8. OpenFile &#8220;crsf_sbus_vx.x.x.bin&#8221;<\/span><\/p>\n<p><span style=\"color: #0000ff;\">9. Click &#8220;Upgrade&#8221;<\/span><\/p>\n<p>10. After update, remove the jumper.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10039\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2022\/02\/CRSF-sbus_upgrade.jpg\" alt=\"\" width=\"841\" height=\"1000\" \/><\/p>\n<\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":9833,"comment_status":"closed","ping_status":"closed","template":"","tags":[198,186,185,197],"portfolio_entries":[201],"class_list":["post-9829","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","tag-converter","tag-crsf","tag-expresslrs","tag-sbus","portfolio_entries-archiving"],"_links":{"self":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/9829","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=9829"}],"version-history":[{"count":0,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/9829\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/media\/9833"}],"wp:attachment":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9829"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9829"},{"taxonomy":"portfolio_entries","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fportfolio_entries&post=9829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}