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. 

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.

IMU-F

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.

Specification:

20x20 form factor

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 the 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 on the OSD line

Filtered camera power

Package included:

1x HelioRC Spring Mini

4x Soft Mount Bobbins

1x 8pin Cable