Flywoo GOKU F405 HD 3-4S 20A ELRS AIO

The GOKU F405 HD 3-4S 20A ELRS AIO is a compact all-in-one flight controller specifically designed for lightweight micro HD FPV drones. It features a powerful STM32F405BGA F405 processor, an integrated 20A 4-in-1 ESC, and built-in ExpressLRS 2.4GHz for reliable, low-latency control. The controller is designed for modern HD VTX configurations and offers a direct plug-and-play connection for DJI O4 / O4 Pro, a 16MB blackbox, a barometer, and a current sensor for precise telemetry. The ICM42688P gyroscope ensures clean flight performance, while the plug-in motor connectors and compact design simplify installation and maintenance.

The controller supports 3-4S LiPo and LiHV batteries and is ideal for compact HD FPV builds where low weight, high integration, and a clean setup are essential. With its ultra-lightweight construction at only 5.2g, integrated ELRS receiver with TCXO, and expansion ports for GPS or external blackbox modules, this AIO board is a strong choice for efficient micro HD builds. The GOKU F405 HD 3-4S 20A AIO offers a well-balanced combination of performance, easy installation, and modern HD compatibility.

Features

• Ultra-lightweight design: Compact 30 x 30mm form factor with a weight of only 5.2g, ideal for 3–4S micro HD drones.
• Powerful AIO configuration: F405 flight controller, 20A 4-in-1 ESC, ELRS 2.4GHz, 16MB blackbox, barometer, and current sensor on a single board.
• Plug-and-play O4 / O4 Pro connection: Direct connector for DJI O4 / O4 Pro VTX, reducing complex soldering work.
• Electronic VTX switch: Helps protect the HD VTX from overheating while on the ground.
• Flexible expansion options: Additional connectors for GPS and blackbox expansions allow easy integration of peripherals such as the Flywoo GM10 Nano GPS.

Specifications

Flight Controller

• BF Flight Controller Firmware: FLYWOOF405S_AIO
• INAV Firmware: FLYWOOF405HD
• MCU: STM32F405BGA
• BEC: 5V 2A
• Flash: 16M
• Barometer: SPL06
• Gyro: ICM42688P
• UARTs: UART1 (ELRS), UART2, UART3, UART4, UART5 (SBUS), UART6
• Protocols: CRSF, SBUS, iBus, Spektrum
• connector: Type-C
• OSD: NO
• Hole: 25.5*25.5-3mm
• Size: 30*30*10mm
• Weight: 5.2g

Onboard 4in1 ESC

• Built-in 3-4S 20A 4in1 ESC
• Support Dshot300, Dshot600
• Input Voltage: 3-4S Lipo
• Firmware: G_H_30_48KHz_Bluejay
• Motor Connectors: JST1.25
• Battery Connector: XT30

Onboard ELRS RX

• ESP8285 MCU
• SX1280IMLTRT RF Module
• Receiver: ELRS 2.4GHz mit TCXO
• Maximum receive refresh rate: 500Hz
• Minimum receiver refresh rate: 25Hz
• Serial: UART 1
• Firmware: Flywoo EL24P 2400 RX Version 3.X.X

Package Contents

• 1 x Flywoo GOKU F405 HD 3–4S 20A AIO
• 1 x Flywoo ELRS 2.4GHz Minimortal PCB T-Antenna UFL, 40mm
• 5 x M2 x 6.6 shock absorbers
• 1 x connection cable for Flywoo Blackbox / GM10 GPS Nano
• 4 x M2 x 10mm screws
• 1 x XT30 power cable
• 1 x connection cable for O4 / O4 Pro
• 1 x 220uF 25V capacitor
• 4 x 1.25mm 3-pin vertical straight sockets