Flywoo GOKU F405 HD 1S 5A AIO w/TXCO ELRS – Ultra-Compact 1S HD Drone Flight Controller
Revolutionary 1S AIO Solution for Precision Micro FPV & HD Flying
Designed for ultra-compact 1S HD drones, the GOKU F405 HD 1S 5A AIO combines high-performance computing with unmatched portability. Built around the aerospace-grade STM32F405 BGA MCU, this all-in-one (AIO) board delivers faster processing while weighing just 2.6g (excluding motor connectors). Its cross-shaped PCB ensures compatibility with all 1S frame kits, making it perfect for pilots who demand precision, reliability, and adaptability in micro HD builds.
Key Highlights
High-Speed Processing – STM32F405BGA MCU (68% faster than F411, 20% faster than G437)
ELRS 2.4GHz Receiver – Integrated Serial ELRS with TCXO crystal for superior signal stability
Premium Gyro & Blackbox – ICM-42688P gyro + 8MB Betaflight Blackbox flash memory
Ultra-Lightweight (2.6g!) – Industry’s lightest 1S AIO solution (without motor connectors)
1S HD Optimized – Perfect for Walksnail, HDZero, and DJI O4 systems
Cross-PCB Design – Seamless fit with all popular 1S frame kits
Pre-Soldered Motor Connectors – Ready-to-fly convenience
️ Specifications
Category Details
Product Name GOKU F405 HD 1S 5A AIO w/TCXO ELRS
MCU STM32F405BGA (Aerospace-grade)
IMU ICM-42688P (High-precision gyro)
Barometer SPL06 (Optional altitude hold)
Blackbox 8MB (Betaflight logging)
OSD Support No (Optimized for HD systems)
UART Ports UART3 (ELRS), UART4, UART5 (SBUS), UART (Main)
Protocols CRSF, SBUS, iBus, Spektrum
BEC 5V / 2.0A Max (With FLYWOO O4 1S 5V BEC: 5V/3A)
ELRS Receiver Flywoo TCXO EL24E 2400 RX (3.0.0)
FC Firmware FLYWOOF405S_AIO (Betaflight optimized)
Dimensions 30.5 x 30.5mm (Cross-shaped PCB)
Mounting Standard 25.5mm square holes (centered)
Weight 2.6g (No motor connectors) / 3.28g (With motor connectors)
Onboard 4-in-1 ESC (Included)
Spec Details
Power Input 1S Only
Current 5A Continuous / 8A Peak
Firmware Bluejay (O_H_5_48KHz_V0.19.hex) – Low-latency DShot support
Signal Protocols DShot300, DShot600
Motor Connector JST1.25
Battery Connector A30 (1S LiPo)
FLYWOO O4 1S 5V BEC Module (Included)
Spec Details
Input Voltage 2.65V - 5V (1S Battery)
Output 5V / 3A (Stable power for HD systems)
Dimensions 11mm x 8mm x 2.2mm (Tiny!)
Weight 0.4g
What’s in the Box?
1x GOKU F405 HD 1S 5A ELRS AIO (Pre-soldered motor connectors)
1x FLYWOO O4 1S 5V BEC Module (For stable 5V power)
1x Flywoo ELRS 2.4G Minimortal PCB T-Antenna (UFL, 40mm)
5x M2*6.6 Shock-Absorbing Balls (Vibration damping)
1x Shrink Film (Protection)
4x Silica Wires (Red/Black) (For power connections)
1x A30 Power Cable (Battery connector)
Why Choose the GOKU F405 HD 1S 5A AIO?
• Lightest 1S AIO on the market (2.6g!) – Perfect for micro HD builds
• ELRS + TCXO for rock-solid signal – No more interference issues
• Bluejay ESC firmware – Low-latency DShot for smooth throttle response
• 8MB Blackbox – Log flights for tuning & debugging
• Cross-PCB design – Fits all 1S frames effortlessly
Ideal for: 1S HD FPV, Micro Cinewhoops, Walksnail/O4/DJI setups, and ultra-light racing drones. 
