{"product_id":"matek-mr900-30-tx-mlrs-mavlink-long-range-system-firmware-900mhz-lora-30-dbm-tx-module-kit","title":"Matek mR900-30-TX mLRS (MAVLink long range system) firmware 900MHz Lora 30 dBm TX Module KIT","description":"\u003cp\u003e\n Looking for a reliable 900MHz long-range communication module that won't fizzle out at the first sign of a faraway signal? Say hello to the\n \u003cstrong\u003e\n  Matek mR900-30-TX mLRS\n \u003c\/strong\u003e\n . Featuring LoRa technology, this transmitter operates in the 900 MHz band with a powerful 30 dBm RF output. Built for MAVLink protocol and fine-tuned for long-range performance, the Matek mLRS kit makes your RC communication smoother and more robust than your WiFi during a Netflix binge.\n\u003c\/p\u003e\n\u003cp\u003e\n But, before you rush off: note that the\n \u003cstrong\u003e\n  Matek mLRS system\n \u003c\/strong\u003e\n isn't interested in being best buds with ELRS or Frsky R9. Compatibility? Strictly limited to the SX126x and STM32WLE5xx chipsets.\n\u003c\/p\u003e\n\u003ch2\u003e\n Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Frequency\n  \u003c\/strong\u003e\n  : 900MHz (868MHz for EU, 915MHz for FCC)\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   RF Power\n  \u003c\/strong\u003e\n  : Adjustable from 21dBm up to a whopping 30dBm (1000mW)\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Chipset\n  \u003c\/strong\u003e\n  : LoRa SX1262 with STM32G431KB for optimal communication\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   MAVLink Firmware\n  \u003c\/strong\u003e\n  : Reliable, long-range communication\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Antenna Connection\n  \u003c\/strong\u003e\n  : IPEX MHF-1 to SMA or RP-SMA\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Bluetooth Built-in\n  \u003c\/strong\u003e\n  : HC-04 Bluetooth for configuration via AT commands\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   LED Indicators\n  \u003c\/strong\u003e\n  : Red, Green, and Blue LEDs for status (not mood lighting, sadly)\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Power Supply\n  \u003c\/strong\u003e\n  : 5-13V DC through JR_PIN3\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n Specifications\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   mR900-30\n  \u003c\/strong\u003e\n  \u003cul\u003e\n   \u003cli\u003e\n    STM32G431KB,  mLRS firmware\n   \u003c\/li\u003e\n   \u003cli\u003e\n    LoRa SX1262 with TCXO\n   \u003c\/li\u003e\n   \u003cli\u003e\n    PA\/LNA SKY68383-11\n   \u003c\/li\u003e\n   \u003cli\u003e\n    RF Frequency: 900MHz (868MHz, 915MHz FCC)\n   \u003c\/li\u003e\n   \u003cli\u003e\n    915MHz RF power: 21dBm(min) \/ 22dBm \/ 24dBm \/ 27dBm \/ 30dBm(1000mW)\n   \u003c\/li\u003e\n   \u003cli\u003e\n    868MHz RF power: 24dBm(min) \/ 24dBm \/ 24dBm \/ 27dBm \/ 30dBm(1000mW)\n   \u003c\/li\u003e\n   \u003cli\u003e\n    Antenna connector: IPEX MHF-1 to SMA\n   \u003c\/li\u003e\n  \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   mRx-Tx Adapter\n  \u003c\/strong\u003e\n  \u003cul\u003e\n   \u003cli\u003e\n    Built-in HC-04 Bluetooth module\n   \u003c\/li\u003e\n   \u003cli\u003e\n    Built-in 5V fan controller,  running if output power\u0026gt;=500mW\n   \u003c\/li\u003e\n   \u003cli\u003e\n    TX2: RC IN(CRSF)\n   \u003c\/li\u003e\n   \u003cli\u003e\n    one buttom for DFU mode and Bind\n   \u003c\/li\u003e\n   \u003cli\u003e\n    Red and Green LED for mLRS status\n   \u003c\/li\u003e\n   \u003cli\u003e\n    Blue LED for Bluetooth status\n   \u003c\/li\u003e\n   \u003cli\u003e\n    Power supply: 5-13V DC @ JR_PIN3 (VIN)\n   \u003c\/li\u003e\n  \u003c\/ul\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Packing\n  \u003c\/strong\u003e\n  :\n  \u003cul\u003e\n   \u003cli\u003e\n    1x mR900-30-TX,\n   \u003c\/li\u003e\n   \u003cli\u003e\n    1x IPEX MHF1 to SMA adapter cable 5cm,\n   \u003c\/li\u003e\n   \u003cli\u003e\n    1x IPEX MHF1 to RP-SMA adapter cable 5cm\n   \u003c\/li\u003e\n   \u003cli\u003e\n    1x 5V Fan (25*25*10mm) and some screws\n   \u003c\/li\u003e\n   \u003cli\u003e\n    no SMA antenna \u0026amp; 3D printed Case packed\n   \u003c\/li\u003e\n  \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Downloads\n  \u003c\/strong\u003e\n  :\n  \u003cul\u003e\n   \u003cli\u003e\n    \u003ca href=\"https:\/\/www.mateksys.com\/Downloads\/other\/Matek_mLRS_JRBay.zip\"\u003e\n     JR Bay Case 3D print (stl)\n    \u003c\/a\u003e\n   \u003c\/li\u003e\n   \u003cli\u003e\n    \u003ca href=\"https:\/\/www.mateksys.com\/Downloads\/other\/mRX-TX_step.zip\"\u003e\n     mRX-TX Adapter 3D (step)\n    \u003c\/a\u003e\n   \u003c\/li\u003e\n  \u003c\/ul\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n LED Status\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  [Red flashing 2Hz], not connected to transmitter\n \u003c\/li\u003e\n \u003cli\u003e\n  [Green flashing 1Hz], connected to transmitter\n \u003c\/li\u003e\n \u003cli\u003e\n  [Red and Green alternately ], Binding mode enabled\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n Binding\n\u003c\/h2\u003e\n\u003cul dir=\"auto\"\u003e\n \u003cli\u003e\n  After powering on,  press the bind button (for ca. 4 seconds) on the receiver. When in bind mode, the green and red LEDs will blink alternatively with ca 2.5 Hz.\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS-docu\/blob\/master\/docs\/BINDING.md\" rel=\"noopener\" target=\"_blank\"\u003e\n   https:\/\/github.com\/olliw42\/mLRS-docu\/blob\/master\/docs\/BINDING.md\n  \u003c\/a\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n Firmware\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  mLRS\n  \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/firmware\/pre-release-stm32\" rel=\"noopener\" target=\"_blank\"\u003e\n   https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/firmware\/pre-release-stm32\n  \u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Target:  tx-matek-mr900-30-g431kb-default\n  \u003c\/strong\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n Tips\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS\" rel=\"noopener\" target=\"_blank\"\u003e\n   mLRS Github\n  \u003c\/a\u003e\n  \u0026amp;\n  \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS-docu\/tree\/master\" rel=\"noopener\" target=\"_blank\"\u003e\n   Documentation\n  \u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/discord.com\/invite\/vwjzCD6ws5\" rel=\"noopener\" target=\"_blank\"\u003e\n   mLRS Discord\n  \u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/www.facebook.com\/groups\/mlrslink\/\" rel=\"noopener\" target=\"_blank\"\u003e\n   mLRS Facebook group\n  \u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  MATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz \u0026amp; Frsky R9 series using the SX127x. They will not bind with each other.\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n\u003ch2\u003e\n Routing and Layout\n\u003c\/h2\u003e\n\u003cp\u003e\n \u003cimg alt=\"\" class=\"alignnone size-full wp-image-700881\" height=\"600\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0914\/9972\/5181\/files\/mR900-30-TX_5-1.jpg?v=1754235063\" width=\"1500\"\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cimg alt=\"\" class=\"alignnone size-full wp-image-700883\" height=\"1287\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0914\/9972\/5181\/files\/mR900-30-TX_L-1.jpg?v=1754235066\" width=\"1931\"\u003e\n\u003c\/p\u003e\n\u003ch4\u003e\n \u003cstrong\u003e\n  Dip switch\n \u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Dip switch 1\/2\/3 all ON,  enable HC-04 communication with UART1 of STM32G431\n \u003c\/li\u003e\n \u003cli\u003e\n  Dip switch 3 ON,  1 \u0026amp; 2 OFF,   connect USB-TTL to G\/3v3\/BT-T\/BT-R to configure HC04 via AT command\n \u003c\/li\u003e\n \u003cli\u003e\n  Dip switch 1\/2\/3 all OFF,  you can connect other Bluetooth or WiFi module to G\/3v3\/Rx1\/Tx1\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\n Firmware and Flashing\n\u003c\/h2\u003e\n\u003cp\u003e\n Download STM32CubeProgrammer from ST website\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/www.st.com\/en\/development-tools\/stm32cubeprog.html\" rel=\"noopener\" target=\"_blank\"\u003e\n   https:\/\/www.st.com\/en\/development-tools\/stm32cubeprog.html\n  \u003c\/a\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n mLRS firmware:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/firmware\/pre-release-stm32\" rel=\"noopener\" target=\"_blank\"\u003e\n   https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/firmware\/pre-release-stm32\n  \u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  Targets:\n  \u003cstrong\u003e\n   tx-matek-mr900-30-g431kb-default\n  \u003c\/strong\u003e\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Make sure STM DFU driver has been installed. Check out \"Install DFU Drivers\" in\n \u003ca href=\"https:\/\/www.mateksys.com\/?p=5159#tab-id-1\" rel=\"noopener\" target=\"_blank\"\u003e\n  this page\n \u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Connect the TX module USB to computer while holding the boot button in.\n\u003c\/p\u003e\n\u003col\u003e\n \u003cli\u003e\n  Select USB\n \u003c\/li\u003e\n \u003cli\u003e\n  USB1 and click Refresh\n \u003c\/li\u003e\n \u003cli\u003e\n  Connect\n \u003c\/li\u003e\n \u003cli\u003e\n  select \"Erasing \u0026amp; Programming\"\n \u003c\/li\u003e\n \u003cli\u003e\n  Tick all sectors and click \"erase selected sectors\"\n \u003c\/li\u003e\n \u003cli\u003e\n  Browse firmware (hex or bin file) related to the hardware.\n \u003c\/li\u003e\n \u003cli\u003e\n  Click \"Start Programming\"\n \u003c\/li\u003e\n \u003cli\u003e\n  After programming, unplug USB and plug USB back in. If red LED blinks at 2Hz, the TX module is waiting for connecting with receiver.\n \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\n \u003cimg alt=\"\" class=\"alignnone size-full wp-image-700884\" height=\"789\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0914\/9972\/5181\/files\/mlRS_flashing_USB-1.jpg?v=1754235069\" width=\"1216\"\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n\u003ch2\u003e\n LUA\n\u003c\/h2\u003e\n\u003cp dir=\"auto\"\u003e\n \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/lua\" rel=\"noopener\" target=\"_blank\"\u003e\n  https:\/\/github.com\/olliw42\/mLRS\/tree\/main\/lua\n \u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\n The mLRS Lua script provides the most convenient way to change the Tx and Rx module's settings.\n\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\n The Lua script works on both OpenTx and EdgeTx radios but there are two different versions depending on the display of your radio:\n\u003c\/p\u003e\n\u003col dir=\"auto\"\u003e\n \u003cli\u003e\n  If your radio has a 480×272 color screen (e.g. Jumper T16, Radiomaster TX16S) then use the \"mLRS.lua\" file\n \u003c\/li\u003e\n \u003cli\u003e\n  If your radio has a black and white screen (e.g. Frsky Taranis X9E, Radiomaster Zorro) then use the \"mLRS-bw.lua\" file\n \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"auto\"\u003e\n Note: The mLRS script requires EdgeTx version 2.9.x or later.\n\u003c\/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\n \u003ch5 class=\"heading-element\" dir=\"auto\"\u003e\n  Setup\n \u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cp dir=\"auto\"\u003e\n Three things need to be done in order to use the Lua script:\n\u003c\/p\u003e\n\u003col dir=\"auto\"\u003e\n \u003cli\u003e\n  \u003cp dir=\"auto\"\u003e\n   The Tx module must be configured for CRSF or mBridge mode, by setting the parameter \"Tx Ch Source\" to \"crsf\" or \"mbridge\" respectively. Since firmware version v0.2.13 \"crsf\" is the default setting, so this will be already completed after an initial flash. If not, the CLI needs to be used to set this parameter accordingly, as described in\n   \u003ca href=\"https:\/\/github.com\/olliw42\/mLRS-docu\/blob\/master\/docs\/CLI.md\"\u003e\n    CLI Commands\n   \u003c\/a\u003e\n   .\n  \u003c\/p\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cp dir=\"auto\"\u003e\n   In EdgeTX\/OpenTX, navigate to MDL-\u0026gt;MODEL SETUP and configure the external RF module for CRSF or mBridge protocol with 400K baud rate.\n  \u003c\/p\u003e\n  \u003cul dir=\"auto\"\u003e\n   \u003cli\u003e\n    Note: mLRS only officially supports 400K baud rate.\n   \u003c\/li\u003e\n  \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cp dir=\"auto\"\u003e\n   The Lua script \"mLRS.lua\" or \"mLRS-bw.lua\" located in the \"lua\" folder of the repository needs to be copied to the \"SCRIPTS\/TOOLS\" folder of the radio's SD card. One can follow the common tutorials for how to do this.\n  \u003c\/p\u003e\n \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"auto\"\u003e\n You should then be able to run the Lua script by going to SYS-\u0026gt;TOOLS on the radio, and selecting \"mLRS Configurator\".\n\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\n \u003cimg alt=\"\" class=\"alignnone size-full wp-image-700885\" height=\"600\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0914\/9972\/5181\/files\/mR900-30-TX_lua-1.jpg?v=1754235072\" width=\"1500\"\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n\u003c\/p\u003e\n","brand":"Unmanned Tech","offers":[{"title":"Default Title","offer_id":54199948083464,"sku":"MR900-30-TX","price":26.65,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/9043\/4312\/files\/Materk-mR900-30-TX.jpg?v=1775721859","url":"https:\/\/bidnamic.store\/products\/matek-mr900-30-tx-mlrs-mavlink-long-range-system-firmware-900mhz-lora-30-dbm-tx-module-kit","provider":"Bidnamic Store","version":"1.0","type":"link"}