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Helio Spring IMU-F V2 Flight Controller (Features Discrete Filtered Gyro)


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SKU: 5673Tags: 30x30, Betaflight, Butterflight, F3, F4, Helio, Mini


Introducing the Helio Spring V2! The flight controller you know and love has gotten even better. 

Improvements over V1

  • No more jumpers! Simplicity is our motto.
  • Inductor is on top to account for faulty ESCs emitting substantial EMI.
  • LC filter on the OSD line
  • Filtered camera power.
  • New orange color!

Truly Freeing

  • Runs multiple multiple open source flight controller firmwares including the latest Butterflight, Betaflight, iNav, and others.

Natively Fast

  • True 32khz processing without overclocking
  • More than capable of 32khz pid-loop speeds even on an F4.

Helio's IMU-F

  • The IMU-F system is an advanced inline discretely filtered gyro that is transparent to the flight controller
  • More processing power is available for flight controller logic and future feature updates without causing slowdown or other issues during flight
  • The hardware contains both an f3 and an f4. The gyro is the ICM 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)



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