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Приёмник Matek mR900-30 mLRS (MAVLink) 900MHz

Артикул: 36602
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Приёмник Matek mR900-30 mLRS (MAVLink long range system) firmware, 900 MHz LoRa, 30 dBm RF power

MATEKSYS mLRS 900MHz series using SX126x/STM32WLE5 LoRa chip 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.

 

Specifications

  • STM32G431KB,  mLRS firmware
  • LoRa SX1262 with TCXO
  • PA/LNA SE2435L
  • 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
  • TX1/RX1: Bi-directional Serial MAVLink
  • TX2: RC out(CRSF or SBUS)
  • one buttom for DFU mode and Bind
  • Power supply: 4.5-13V DC @ “V” Pad
  • Power dissipation:  Average 340mA/Peak 850mA@5V IN(31Hz, 30dbm)
  • PCB Size: 29x21mm
  • Weight: 5.3g w/ antenna
  • Packing:
    • 1x mR900-30
    • 1x IPEX MHF1 dipole antenna. 8cm
    • 1x Heatsink 20*20*6mm

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

Routing and settings

Use mR24-30 as a TX module : tx-matek-mr900-30-g431kb-default-xxx

matek-mlrs-mavlink-900mhz-receiver-mr900-30-03.jpg

Use mR24-30 as a TX in SiKTelem mode : tx-matek-mr900-30-g431kb-siktelem-xxx

matek-mlrs-mavlink-900mhz-receiver-mr900-30-04.jpg

Modes & Link Rate

  50 Hz 31 Hz 19 Hz FLRC (111 Hz) FSK (50 Hz)
frequency bands 2.4 GHz 2.4 GHz 2.4 GHz 2.4 GHz  
/ 915/868 MHz 915/868 MHz / 915/868 MHz
/ 433 MHz/70 cm 433 MHz/70 cm / 433 MHz/70 cm
chip sets SX128x SX128x SX128x SX128x  
/ SX126x/LLCC68 SX126x/LLCC68 / SX126x/LLCC68
/ STM32WLE5 STM32WLE5 / STM32WLE5
/ / SX1276 /  
downlink serial rate 4100 Bytes/sec 2562 Bytes/sec 1547 Bytes/sec 9111 Bytes/sec 4100 Bytes/sec
uplink serial rate 3200 Bytes/sec 2000 Bytes/sec 1207 Bytes/sec 7111 Bytes/sec 3200 Bytes/sec
receiver sensitivity -105 dBm -108 dBm -112 dBm not for LR not for LR

 

Firmware flashing

Download STM32CubeProgrammer from ST website

mLRS firmware:

————————————————————————————————————

Make sure DFU driver has been installed. Check out “Install DFU Drivers” in this page

Connect the Receiver USB to computer while holding the boot button in.

  1. Select USB
  2. USB1 and click Refresh
  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.

matek-mlrs-mavlink-900mhz-receiver-mr900-30-05.jpg

*** You can also flash it via INAV or BetaFlight configurator, load firmware local,  just like flashing a flight crontroller.

 

COM/CLI commands

  • Install serial_port_utility
  • Firmware tx-matek-mr900-30-g431kb-default,  USB = COM/CLI, connect USB directly to computer, install STM VCP driver,  select STM32 COM port
  • Firmware tx-matek-mr900-30-g431kb-siktelem, LT1/LR1 = COM/CLI,  connect USB-TTL module to LT1/LR1, select USB-TTL COM port
  • more CLI commands details. 

matek-mlrs-mavlink-900mhz-receiver-mr900-30-06.jpg

Комплектация

  • Приёмник Matek mR900-30 mLRS (MAVLink) 900MHz - 1 шт

Сайт производителя: https://www.mateksys.com/?portfolio=mr900-30

Производитель: Matek
Тип: Приёмник
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