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Manual: Link
Discussion: Link
Default OSD: Link
Features
Optimization for Cleanflight/Betaflight firmware - (flash as spracing target)
ARM Cortex-M4 core STM32F303CC with 32bit/72MHz/256K Flash/40K SRAM and hardware floating point unit
MPU6050 and BMP180 / BMP280 Sensors
Build-in 8MB flash for black box log recorder
On board OSD with absolutely original MAX7456EUI+ and standard FTDI debug port
Receiver connector with PPM/SBUS/SumD/DSM2/DSMX and RSSI input
Up to 3 serial ports and 8 PWM outputs
Multifunction connectors with SWD/UART2~3/Soft-serial/Buzzer/LED trip/Voltage detection
Multifunction OSD connectors with video_IN/ video_OUT/ICSP/debug port (UART1)
PDB connector with 5V input/Current and Voltage detection
Power input revers polarity protection
Specification
Power input: 5.0~5.5V
Dimension: 35x35x9mm
Fixing hole spacing: 30mm
Weight: 7.3g
PPM/RSSI/SBUS/SumD Receiver Cable
Camera/video-TX cable
Buzzer/LED strip/voltage detect cable
OSD debug port to FTDI adapter cable
If your Drones doesn't PDB, you can use BR-PDB, it is the best solution for BRF3:
