Flywoo GOKU F405 HD AIO Flight Controller V2 1-2S 12A ELRS Type-C 5V/9V BEC Plug&Play O4/O4 Pro

Overview

The Flywoo GOKU F405 HD 1-2S 12A ELRS AIO V2 is an AIO flight controller designed for 1-2S HD micro drone builds, integrating an STM32F405 BGA MCU, Type-C connection, onboard 4in1 ESC, and onboard sensors for HD VTX setups. It includes a built-in 9V 2A BEC intended to help prevent voltage drop issues when powering a digital air unit, plus features such as 8M flash (blackbox), barometer, and current sensing.

For wiring or firmware support, contact https://rcdrone.top/ or email support@rcdrone.top.

Key Features

• Type-C design for convenient and reliable connections
• Power system for HD VTX: 5V 2A / 9V 2A BEC
• Plug-and-play digital VTX connection (DJI O3 connection cable included)
• Motor socket design for faster motor replacement and upgrades
• Multifunction integration: serial ELRS 2.4G receiver (ELRS version), 8M flash blackbox, barometer, current sensor
• UART resources: reserves 2 full UARTs and 1 standard SBUS port for devices such as GPS, HD VTX, and external receivers
• Compatible with multiple HD VTX systems: DJI O3, Walksnail, HDZero, Vista

Specifications

Onboard 4in1 ESC

• Built-in 1S/2S 12A BL_S 4in1 ESC
• Supports Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
• Input Voltage: 1-2S Lipo
• Firmware: BLHELI_S
• Firmware: Z_H_30_REV16.7

ELRS 2.4G RX (optional)

• MCU: ESP8285
• RF Module: SX1280IMLTRT
• Frequency Range: 2400 MHz to 2500 MHz
• Maximum receive refresh rate: 500Hz
• Minimum receiver refresh rate: 25Hz
• Serial: UART 1
• Firmware: Flywoo EL24P 2400 RX
• Version: 3.X.X

Pad / Port Labels (silkscreen)

• Main power: VCC, GND
• UART6 / SBUS(5) group: 9V, GND, TX6, RX6, GND, SBUS(5)
• UART3 / SBUS(3) group: 4.5V, TX3, GND, RX3, SBUS(3)
• UART4 / I2C group: 4.5V, GND, SCL, TX4, SDA, RX4
• UART2 group: RX2, TX2, 3.3V, GND
• LED / buzzer / 5V group: LED, BZ-, GND, 5V
• Other marking: RX-BOOT

Firmware & Tools

• Betaflight FC firmware target: FLYWOOF405S_AIO
• INAV firmware: FLYWOOF405HD
• ESC Configurator: https://preview.esc-configurator.com/

Setup Notes

ESC firmware notes (Betaflight)

1. The ESC firmware defaults to Bluejay 0.19.2 48KHz.
2. Supports bidirectional D-shot and RPM filtering in Betaflight.
3. Upgrading to 96KHz is not recommended; it may cause errors in motor idle settings (motors not spinning when disarmed).
4. Do not flash the firmware with a shorter interval; this can increase the chance of stalling and flight controller damage.

Serial ELRS 2.4G RX notes

1. The Serial ELRS 2.4G RX uses the Crossfire serial protocol (CRSF protocol) to communicate between the receiver and the flight controller.
2. Binding:
   • Unplug and plug the power/data cable three times to enter binding mode.
   • The RX LED flashes rapidly twice when in binding mode.
   • Put the transmitter/module into binding mode.
   • A solid RX light indicates it is bound.
3. Upgrade (passthrough method):
   • Connect the FC to the computer but do not connect to Betaflight Configurator.
   • Select target: "FLYWOO 2.4Ghz EL24P" in ExpressLRS Configurator.
   • Use BetaflightPassthrough in ExpressLRS Configurator.

9V electronic switch

By controlling the switch of USER2, it is possible to control the 9V power supply, temporarily shutting off the video transmitter power to help reduce prolonged high-temperature exposure.

1. Connect the flight controller to Betaflight Configurator and open the Modes tab.
2. Find USER2, select Add Range, assign a switch on the radio controller, save, then activate USER2.

What’s Included

• 1x XT30 Power Cable
• 1x Flywoo ELRS 2.4G Minimortal PCB T Antenna UFL (only ELRS Version)
• 1x DJI O3 Connection Cable
• 1x PH 2.0 Battery Lead
• 1x Capacitor
• 4x JST Straight Socket
• 4x M2*10 screw
• 4x M2 nuts
• 4x M2 shock-absorbing ball

Applications

• 1-2S HD micro drone builds using an AIO flight controller with integrated 12A 4in1 ESC
• Digital FPV builds requiring 5V and 9V BEC outputs and Type-C connectivity
• Compact builds needing onboard blackbox (8M), barometer, and current sensing

Details

Clear pad labels for UARTs, power, and motor outputs plus an onboard boot button help simplify wiring and setup on the Flywoo GOKU F405 HD.

The Flywoo GOKU F405 HD AIO flight controller uses a compact layout with a side USB-C port and clearly marked M1–M4 motor connections for simpler wiring.

The Flywoo GOKU F405 HD 1–2S AIO V2 combines a USB-C connector and clearly labeled pads to simplify wiring on compact HD builds.

The GOKU F405 HD AIO combines an STM32F405 MCU, built-in ELRS 2.4G RX, a 9V 2A BEC pad, and a USB-C connector for convenient setup.

Clear pad labels for TX/RX, 5V, GND, SBUS, and LED make it easier to connect a receiver, GPS module, and other accessories during setup.

The GOKU F405 HD connects to a GPS/compass using TX/RX plus 5V, GND, SCL, and SDA wiring for clean integration.

The Flywoo GOKU F405 HD AIO pad layout labels 9V, 5V, 4.5V, GND, TX/RX, SBUS, and SDA/SCL connections to make wiring cleaner and faster.

Betaflight mode setup uses the Modes tab to assign USER2 switch ranges for controlling the 9V electronic switch output.

Receiver, Modes, and Adjustments menus provide quick access to core setup and switch mapping for the Flywoo GOKU F405 HD AIO flight controller.