MATEKSYS mLRS MAVLink 900MHz TX Module Kit, mR900-30-TX

Specifications

• mR900-30
  • STM32G431KB,  mLRS firmware
  • LoRa SX1262 with TCXO
  • PA/LNA SKY68383-11
  • RF Frequency: 900MHz (868MHz, 915MHz FCC)
  • 915MHz RF power: 21dBm(min) / 22dBm / 24dBm / 27dBm / 30dBm(1000mW)
  • 868MHz RF power: 24dBm(min) / 24dBm / 24dBm / 27dBm / 30dBm(1000mW)
  • Antenna connector: IPEX MHF-1 to SMA
• mRx-Tx Adapter
  • Built-in HC-04 Bluetooth module
  • Built-in 5V fan controller,  running if output power>=500mW
  • TX2: RC IN(CRSF)
  • one buttom for DFU mode and Bind
  • Red and Green LED for mLRS status
  • Blue LED for Bluetooth status
  • Power supply: 5-13V DC @ JR_PIN3 (VIN)

• Packing:
  • 1x mR900-30-TX,
  • 1x IPEX MHF1 to SMA adapter cable 5cm,
  • 1x IPEX MHF1 to RP-SMA adapter cable 5cm
  • 1x 5V Fan (25*25*10mm) and some screws
  • no SMA antenna & 3D printed Case packed
• Downloads:
  • JR Bay Case 3D print (stl)
  • mRX-TX Adapter 3D (step)

LED Status

• [Red flashing 2Hz], not connected to transmitter
• [Green flashing 1Hz], connected to transmitter
• [Red and Green alternately ], Binding mode enabled

Binding

• 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.
• https://github.com/olliw42/mLRS-docu/blob/master/docs/BINDING.md

Firmware

• mLRS https://github.com/olliw42/mLRS/tree/main/firmware/pre-release-stm32
• Target:  tx-matek-mr900-30-g431kb-default

Tips

• mLRS Github  & Documentation
• mLRS Discord
• mLRS Facebook group
• MATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz & Frsky R9 series using the SX127x. They will not bind with each other.