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Matek mR900-22 mLRS (MAVLink long range system) firmware 22dBm RF power 900MHz Receiver

Matek mR900-22 mLRS (MAVLink long range system) firmware 22dBm RF power 900MHz Receiver

SKU N12-13560
Availability:
in stock
$16.99 - $16.99
$16.99
$16.99 - $16.99
$16.99


MATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz & Frsky R9 series using the SX127x. They will not bind with each other.

LoRa chip SX126x(e.g. mR900-30, E22) and STM32WLE5xx(e.g. mR900-22, WIO-E5, E77) are compatible with each other.

Experience unparalleled long-range connectivity with the Matek mR900-30 MAVLink long range system.

Equipped with MAVLink firmware and a 900 MHz LoRa band, the Matek mR900-22 receiver boasts 20 dBm RF power for optimal transmission strength. Stay connected with confidence and clarity.

 

Check out all our External Modules/Receivers Collection, and the rest of our Matek products!

 

Wiring:

Modes & Link Rate

Firmware Flashing:

Download STM32CubeProgrammer from ST website

mLRS firmware:

————————————————————————————————————

Connect the mR900-22 to USB-TTL module (e.g.CP210x, FTDI)

  • mR900-22 RX2  —  USB-TTL module TX
  • mR900-22 TX2  —  USB-TTL module RX
  • mR900-22  V   —  USB-TTL module 5V
  • mR900-22  G   —  USB-TTL module GND

Connect USB-TTL module to computer while holding the receiver boot button in.

  1. Select UART
  2. Select the COM port of USB-TTL module
  3. Connect
  4. select “Erasing & Programming”
  5. Tick all sectors and click “erase selected sectors”
  6. Browse firmware (hex or bin file) related to the hardware.
  7. Click “Start Programming”
  8. After programming, unplug USB and plug USB back in. If red LED blinks at 2Hz, the receiver is waiting for connecting with transmitter.


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:  67mA@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.

     

    Package Includes:

    • 1 x mR900-22
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