GOKU GN405 Nano HD 20A Stack V3 w/ ELRS

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Miniaturise your build without sacrificing professional features using the Flywoo GOKU GN405 Nano HD 20A Stack V3. This ultra-compact 16x16mm stack combines a powerful F405 Flight Controller with a robust 20A ESC, creating the ultimate powertrain for high-performance micro drones, 2-inch cinewhoops, and ultralight 3-inch freestyle rigs.

The Micro Stack That Does It All

Gone are the days of compromising on micro builds. The upgraded GOKU GN405 Nano FC features a blazing-fast STM32F405 BGA MCU, delivering significantly more processing power than standard F411 boards. It comes fully equipped with a built-in TCXO ELRS 2.4GHz Receiver, ensuring a rock-solid control link with zero frequency drift, even during extreme temperature changes.

Digital HD Ready (DJI O3 & O4)

Designed for the modern era of FPV, this stack features a direct plug-and-play port for DJI O3 and O4 Air Units. This allows you to build a sub-250g HD micro drone with clean wiring and minimal solder points. With 6 complete UART ports, you have ample connectivity for GPS, external blackbox modules, or other peripherals.

Reliable 20A Power

The stack includes the GOKU BS 20A 4-in-1 ESC, capable of handling 2-4S LiPo input. Whether you are cruising smoothly or punching the throttle for a power loop, this ESC delivers consistent, efficient power to your motors. It is fully compatible with Bluejay firmware for RPM filtering and bidirectional DShot.

Key Features:

• Ultra-Compact: 16x16mm mounting pattern fits the tightest micro frames.

• Integrated Receiver: Built-in TCXO ELRS 2.4GHz for long-range reliability.

• HD Compatibility: Plug-and-play port for DJI O3/O4 Air Units.

• Pro Features: Built-in Barometer and 16MB Blackbox for logging.

• Modern I/O: Universal USB-C port and 6 UARTs.

• Powerful Core: F405 BGA MCU + ICM-42688P Gyro.

Specifications:

Flight Controller (GOKU GN405 Nano FC V3)

• MCU: STM32F405 BGA

• Gyro: ICM-42688P (SPI)

• Receiver: Built-in TCXO ELRS 2.4GHz

• Barometer: DP310

• Blackbox: 16MB

• UARTs: 6 (1, 2, 3, 4, 5, 6)

• BEC: 5V/2A, 3.3V/0.5A

• Mounting: 16x16mm (M2)

ESC (GOKU BS 20A)

• Continuous Current: 20A

• Input Voltage: 2-4S LiPo

• Firmware: BLHeli_S (Bluejay Ready)

• Mounting: 16x16mm

What’s in the Box?

• 1x GOKU GN405 Nano FC V3 (ELRS 2.4G)

• 1x GOKU BS 20A 4-in-1 ESC

• 1x Cable Connection Set (For O3/O4, Motors, etc.)

• 1x Mounting Hardware Kit