BrainFPV RADIX LI Flight Controller

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Introducing RADIX LI: The world's first 20 x 20 flight controller with a graphical OSD by BrainFPV


Processor STM32F446RET6, Coretx-M4, 32bit, 180MHz, 128kB RAM, 512kB Flash
IMU Bosch Sensortec BMI160 running at 3.2kHz, 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
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
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
RGB LEDs Dedicated RGB LED output
Camera Control Dedicated output for accessing the camera menu to change camera settings
Buzzer Port Dedicated port for 5V (100mA max) buzzers
Analog Inputs Voltage sensing  (VBAT), current input (3.3V max)
Power 3S - 6S (7.5V - 26V), 500mA BEC
Dimensions 26.5mm x 26.5mm, 20mm hole spacing. 4.1mm holes for anti-vibration grommets for M3 screws
Weight 4g


  • 1x RADIX LI flight controller
  • 1x Silicone anti-vibration grommets 4x
  • 1x BrainFPV 4-in-1 ESC cable kit (cables and connectors to make a cable that works with any 4-in-1 ESC with a JST-SH 7 pin, 8 pin, or 10 pin connector)
  • Shipping costs

     starting at 3,20€

    Europe starting at 5,25€

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  • Free shipping

    Luxembourg from 59€

    Belgium from 79€

    Netherlands from 79€

    France from 99€

    Germany from 99€

    Austria from 99€

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  • Support by email

  • Free return

    Under 14 days

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