Flywoo GOKU F405 HD 1S 5A AIO V2 Flight Controller ICM42688 with ELRS

Flywoo GOKU F405 HD 1S 5A AIO V2 Flight Controller ICM42688 with ELRS

Product description

The Flywoo GOKU F405 HD 1S 5A AIO V2 is an ultralight all-in-one flight controller for modern 1S HD FPV drones and was specifically designed for use with the DJI O4, Walksnail Avatar, and HDZero. With its powerful STM32F405BGA processor, the precise ICM42688P gyroscope, an integrated 5A 4-in-1 ESC, ExpressLRS 2.4 GHz with TCXO, and a specially developed 5V BEC for the DJI O4 Air Unit, it provides an excellent foundation for high-performance Tiny Whoop and Micro HD builds.

Compared to its predecessor, the V2 version has been specifically optimized for digital 1S systems. The integrated Flywoo O4 5V BEC reliably supplies power to the DJI O4 Air Unit and enables stable operation down to a battery voltage of 2.6 V. This ensures that video transmission remains reliable even when the battery is low. At the same time, the integrated TCXO-ELRS receiver (temperature-compensated crystal oscillator) ensures a particularly stable radio connection and low latency.

The flight controller features an exceptionally lightweight cross-shaped PCB design that is compatible with nearly all standard 1S frames. Despite weighing just 2.6 g, the board integrates a powerful flight controller, a 5A 4-in-1 ESC, an SPL06 barometer, and an 8 MB black box that allows flight data to be recorded directly and analyzed later. Pre-installed JST1.25 motor connectors simplify setup and allow for quick motor changes without soldering.

Features

• Specially developed for DJI O4, Walksnail, and HDZero
• Powerful STM32F405BGA flight controller
• Precise ICM42688P gyro sensor
• Integrated 5A 4-in-1 ESC
• Flywoo O4 5V BEC for DJI O4 Air Unit
• Operates the O4 Air Unit at battery voltages as low as 2.6 V
• Integrated ExpressLRS 2.4 GHz UART receiver with TCXO
• 8 MB black box for flight data recording
• SPL06 barometer
• Ultra-lightweight cross-layout for nearly all 1S frames
• Pre-installed JST1.25 motor connectors
• USB-C port
• Compatible with Betaflight

Technical Specifications

Flight Controller

• MCU: STM32F405BGA
• Gyroscope: ICM42688P
• Barometer: SPL06
• Black Box: 8 MB
• Firmware: FLYWOOF405S_AIO
• UARTs: UART3 (ELRS), UART4, UART5 (SBUS), UART6
• Supported Protocols: CRSF, SBUS, iBus, Spektrum

Receiver

• Integrated Flywoo TCXO ELRS 2.4 GHz Receiver
• ExpressLRS 3.x
• Temperature-Compensated Crystal Oscillator (TCXO)

BEC

• Output: 5 V / 3 A
• Optimized for DJI O4 Air Unit

ESC

• 4-in-1 ESC
• Input Voltage: 1S LiPo / LiHV
• Continuous current: 5 A
• Peak current: 8 A
• Firmware: Bluejay
• Supported Protocols: DShot300, DShot600

Connections

• Motor connectors: JST1.25
• Battery connector: A30
• USB-C

Dimensions & Weight

• Dimensions: 30.5 × 30.5 mm
• Mounting holes: 25.5 × 25.5 mm
• Weight: 2.6 g (without motor connector)

Compatibility

• DJI O4 Air Unit
• Walksnail Avatar
• HDZero
• Tiny Whoops
• 1S Micro Drones
• 65–85 mm Whoops
• Firefly16
• Firefly18