Flywoo GOKU F405 HD 3-4S 20A AIO Flight Controller, ELRS 2.4G, O4/O4 Pro Plug&Play

Overview

The Flywoo GOKU F405 HD 3-4S 20A AIO is an AIO flight controller designed for 3S/4S micro HD drones. It integrates an STM32F405BGA MCU, a 20A 4-in-1 ESC, onboard ELRS 2.4G receiver (TCXO), 16MB black box, barometer, current meter, and an electronic switch. It also supports O4/O4 Pro VTX direct plug-in for a compact micro HD build.

Key Features

• O4/O4 Pro VTX plug-n-play: supports direct HD VTX plug-in with no extra power or soldering (for 4S, O4 needs 5V BEC).
• 5.2g ultra-light and compact design for 3S-4S micros; tailored for 2-3" 3S/4S micro racing drones.
• High-performance control: STM32F405BGA MCU + ICM42688P gyro for low-latency precise control.
• 20A 4-in-1 ESC for 3-4S output; ESC firmware listed as G_H_30_48KHz_Bluejay; DShot300/DShot600 supported.
• BAT electronic switch: supports remote power control via RC; enables VTX power on/off to help reduce VTX overheating and burnout risk.
• Expansion sockets for black box and GPS peripherals (e.g., GOKU GM10 Nano GPS, GOKU GM10 Nano V3 GPS w/ compass).
• Onboard ELRS 2.4G RX with stable range messaging: built-in TCXO ELRS RX, low drift, strong anti-interference.

For wiring, setup, or compatibility questions (including O4/O4 Pro cabling), contact support@rcdrone.top or visit https://rcdrone.top/.

Specifications

Flight Controller (AIO)

Onboard 4-in-1 ESC

Onboard ELRS 2.4G RX

What’s Included

• 1x GOKU F405 HD 3-4S 20A AIO
• 1x Flywoo ELRS 2.4g Minimortal PCB T Antenna UFL--40mm
• 5x M2*6.6 shock-absorbing ball
• 1x connector cable for Flywoo black box / GM10 GPS Nano
• 4x M2*10mm screws
• 1x XT30 power cable
• 1x connector cable for O4 / O4 Pro
• 1x 220u 25V capacitor
• 4x 1.25mm 3-pin vertical straight socket

Applications

• 3S/4S micro HD drones and 2-3" micro racing drone builds
• Compact HD VTX builds using O4 / O4 Pro direct plug-in

Manuals

• GOKU 3-4S 20A AIO Manual

Details