Flywoo GOKU HEX GN405 Nano 13A STACK (16*16)

The Flywoo GOKU HEX GN405 Nano 13A Stack is an ultra-compact, high-performance electronics system engineered specifically for micro FPV platforms like Whoops, Toothpicks, and ultralight builds. Built on a tiny 16x16mm footprint, this stack packs an STM32F405 processor, an upgraded ICM42688 gyroscope, a high-precision SPL06 barometer, and an onboard 16MB Blackbox flash chip.

Operating on a 2–4S LiPo power band, the stack delivers 13A of continuous current per channel. It is a brilliant option for micro pilots who want full-sized hardware features (like 6 hardware UARTs and a barometer) without sacrificing critical weight or frame space.

Features

Micro Footprint Layout: Tiny 16x16mm mounting profile designed specifically to fit minimal-clearance micro drone frames.

Pro-Tier Processing Core: Features an STM32F405 BGA processor to easily handle high PID loop frequencies and advanced filtering profiles.

Upgraded Telemetry Suite: Outfitted with an upgraded ICM42688 gyro for rock-solid stability alongside a premium SPL06 barometer for precise altitude tracking.

Expanded Connectivity: Offers 6 dedicated hardware UART ports—highly unusual for a nano stack—allowing simultaneous connection of GPS, serial receivers, and other peripherals.

Clean Power Infrastructure: Equipped with an onboard LC filter to minimize electrical noise and deliver stable, clean voltage to external components.

GOKU HEX GN405 Nano Flight Controller Specifications

MCU: STM32F405 BGA package

IMU: ICM42688 (SPI)

Barometer: SPL06

Blackbox: 16MB onboard Flash Memory

OSD: None

UART Ports: 6 hardware sets (UART1 - UART6)

BEC Output: 5V@2A and 3.3V@0.5A dual outputs

Input Voltage: 2–4S LiPo

Firmware Target: FLYWOOF405NANO (Supports Betaflight and iNav)

Dimensions: 22×22 mm

Mounting Pattern: 16×16 mm (M3 holes)

Weight: 2.3 g

BS13A 4-in-1 ESC Specifications

Model: BS13A BLHeli_S

Continuous Current: 13A

Input Voltage: 2–4S LiPo

Protocols Supported: Dshot150 / Dshot300 / Dshot600, Multishot, Oneshot

Firmware Target: BLHeli_S

Weight: 2.5 g

Receiver Compatibility

ExpressLRS (ELRS) / TBS Crossfire (via serial UART)

FrSky XM / XM+ / R-XSR

Futaba / FlySky

Spektrum (DSM2/DSMX)

General SBUS, IBUS, or serial-based radio links

Package Contents

1 x Flywoo GOKU HEX GN405 Nano Flight Controller board

1 x Flywoo BS13A 4-in-1 ESC board

1 x Power cable lead

4 x Mounting screws

4 x Soft vibration-damping rubber column grommets