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Helio Spring 20x20mm IMU-F Flight Contoller

The Helio Spring Mini 20x20mm flight controller packs the high performance of its larger IMU-F brother into a smaller 20mm package.
Availability: Out of stock

Get the unparalleled high performance of the Helio Spring Flight Controller in a compact, mini 20x20 package today! Bring the smoothest flight experience on the market to your racer or freestyle quad. 

The Helio Spring IMU-F Flight Controller features an onboard F3 based co-processor chip which transparently filters the gyro signal at 32khz before passing it onto the flight controller in quaternion form at 16khz. This leaves more processing power available to the flight controller.


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

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.

- Mounting: 20x20MM
- 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)
- LC filter: Yes, on OSD line
- Filtered camera power: Yes


- 1x Helio Spring Mini 20x20mm IMU-F Flight Controller
- 1x JST-SH 8 Pin Cable