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)

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

• JR Bay Case 3D print (stl)
• mRX-TX Adapter 3D (step)

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.