mLRS MAVLink 900MHz Receiver, mR900-22

mLRS (MAVLink long range system) firmware, 900 MHz LoRa, 22 dBm RF power

Specifications

  • STM32WLE5CC with TCXO,  mLRS firmware
  • RF Frequency: 900MHz (868MHz, 915MHz FCC)
  • RF power: -9dBm(min) / 0dBm / 10dBm / 20dBm / 22dBm(158mW)
  • Antenna connector: IPEX MHF-1
  • TX2/RX2: Bi-directional Serial MAVLink
  • TX1: RC out(CRSF or SBUS)
  • 2x buttons for Boot mode and Bind
  • Power supply: 4-9V DC @ “V” Pad
  • Power dissipation:  Average 67mA/Peak 170mA@5V IN(31Hz, 22dbm)
  • PCB Size: 24 x 15.5 mm
  • Weight: 2.3g w/ antenna
  • Packing:
    • 1x mR900-22
    • 1x IPEX MHF1 dipole antenna. 8cm

LED Status

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

Binding

Firmware

Tips

  • mLRS Github  & Documentation
  • mLRS Discord
  • mLRS Facebook group
  • If set RF power >=500mW, It is recommended to attach the heatsink to the bottom side of PCB. The gaps between fins can be used for mounting with M3 screws
  • mR900-22 is NOT compatible with ELRS 900MHz / Frsky R9 series using the SX127x. They will not bind with each other.