BrainFPV Radix Flight Controller

Technical Specifications

- Processor: STM32F446RET6, Coretx-M4, 32bit, 180MHz, 128kB RAM, 512kB Flash.
- IMU: Bosch Sensortec BMI160 running at 3.2kHz, connected using SPI.
- Baro: Bosch Sensortec BMP280 connected using SPI.
- OSD: Full-graphic, PAL/NTSC auto detect, adjustable black and white levels. Full Betaflight OSD support with extra graphical features. Support for side-by-side 3D when used with a 3D FPV camera.
- Memory: MicroSD card slot for logging.
- Motor Outputs: 6 outputs with full DSHOT (150/300/600/1200) and OneShot support.
- Receiver Support: PPM, S.Bus (inverter built-in), DSM, HoTT,  SRXL, CSRF, FPort ready. 5V or 3.3V supply for receiver. Receiver is powered from USB for easy and safe setup. 
- Telemetry Support: FrSKY Smart Port, FrSKY Sensor Hub, HoTT Telemetry, SRXL, CSRF, FPort ready. Built-in inverter for FrSKY telemetry.

- Serial Ports: 4 full serial ports (UARTs). UART3 and UART6 have inverters for S.Bus and SmartPort telemetry. Inverters are automatically enabled/disabled for maximum flexibility. 
- RGB LEDs: Dedicated RGB LED output.
- Camera Control: Dedicated output for accessing the camera menu to change camera settings.
- IR Emitter: Dedicated output for infrared based lap timing with multi-protocol support (I-Lap, Trackmate). Needs external IR LED and driver.
- Buzzer Port: Dedicated port for 5V (100mA max) buzzers.
- Analog Inputs: Voltage sensing up to 35V, current and RSSI inputs (3.3V max).
- Power: 4.5V to 5.5V, 120mA.
- Dimensions: 37mm x 37mm, 30.5mm hole spacing. 4.1mm holes for anti-vibration grommets.
- Weight: 6g