HelioRC Spring IMU-F Flight Controller

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  • HelioRC Spring IMU-F Flight Controller
  • HelioRC Spring IMU-F Flight Controller

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Truly Freeing! Supported by multiple open source flight controller software including ButterFlight’s 3.3+ most current technologies.

Natively Fast! True 32khz processing without overclocking.

IMU-F Technology

  • Never before seen IMU-F system: An advanced inline discrete filtered gyro that is transparent to the flight controller.
  • With a super clean discrete filtered gyro, more processing power is available for flight controller logic and future feature updates without causing slowdown or issues during flight.

Helio Gyro

  • The hardware contains both an f3 (IMU-F) and an f4. The gyro is a IMU 20601.


  • Processors: F4 & F3, STM32F405 & STM32F301
  • IMU:  ICM 20601
  • OSD: Full Betaflight OSD support
  • Motor Outputs: Full DSHOT and MULTISHOT 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: 5 full serial ports (UARTs). UART1 and UART2 have inverters for S.Bus and SmartPort telemetry.
  • Buzzer Port: Dedicated port for 5V (100mA max) buzzers.
  • Analog Inputs: Voltage sensing up to 26V, current and RSSI inputs (3.3V max).
  • Power: VBAT up to 6s with voltage regulator 2.5A continuous 3.2A burst. Or 5v in (switchable with jumper pads)

HelioRC Wiring Diagram Schematic

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Additional Information

Mounting Pattern:
30.5 x 30.5
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