Flywoo GOKU F405 HD 1S 1S 5A ELRS AIO V2.0 For DJI O4 / Walksnail / HDZero This Flywoo GOKU F405 HD 1S 5A AIO V2 is tailored for ultra-micro 1S HD drones, building on V1’s strengths with key upgrades. At its core is the STM32F405 BGA micro MCU, delivering 168MHz high-frequency performance, low power consumption, and a mere 2.6g weight. Its innovative cross-shaped design fits all 1S frame kits. Key V2 upgrades: On-board Flywoo 1S O4 5V BEC supports a minimum operating voltage of 2.6V when paired with DJI O4 VTX. It matches V1 exactly in weight, performance, and shape for a seamless classic experience. Also integrated are an ELRS 2.4GHz receiver and TXCO (Temperature-Compensated Crystal Oscillator) for stable, low-latency signals. On-board ICM42688p gyro and 8MB Betaflight black box enable flight data recording and analysis—making it an ideal choice for both pros and beginners building ultra-micro 1S HD drones Product Highlights FLYWOO O4 1S 5V Onboard BEC module, it can achieve a minimum voltage of 2.6V. Integrated Serial ELRS 2.4GHz receiver (with TCXO crystal oscillator for superior precision and stability) STM32F405BGA aerospace-grade MCU (up to 68% faster processing vs. traditional F411 and 20% vs. G437) Equipped with ICM-42688P gyro and 8MB Betaflight Blackbox flash memory Ultra-compact, slim, cross-shaped PCB layout compatible with all popular 1S frames Specifically optimized for 1S HD drone setups, including Walksnail, HDZero, and DJI O4 systems Weighs just 2.6g without motor connectors—the industry’s lightest 1S AIO solution Pre-soldered motor connector Product Information Product Name GOKU F405 HD 1S 1S 5A AIO w/TCXO ELRS MCU STM32F405BGA IMU ICM42688P Barometer SPL06 Black Box 8M OSD Support No UART UART 3（For ELRS),UART4,UART5(SBUS),UART Protocols CRSF, SBUS, iBus, Spektrum BEC BEC:5V 3.0A MAX（Support DJI O4 Air Unit） RX Flywoo TCXO EL24E 2400 RX 3.0.0 FC Firmware FLYWOOF405S_AIO Dimensions 30.5 x 30.5mm Mounting Holes Standard 25.5/25.5mm square to center of holes Weight 2.6g Product Name Onboard 4in1 ESC Power input 1S Only Current 5A continuous, 8A peak ESC firmware O_H_5_48KHz_V0.19.hex Bluejay firmware Digital signal protocol DShot300, DShot600 Motor Connector JST1.25 Battery connector A30 In the box 1x GOKU F405 HD 1S 5A ELRS AIO (pre-soldered motor connectors) 1x Flywoo ELRS 2.4g Minimortal PCB T Antenna UFL–40mm 5x M2*6.6 Shock-absorbing ball 1x shrink film 4x Silica wire (Red/Black) 1x A30 Power cable ( You’re free to use a cable that suits your needs) More Information Wiring diagram Flywoo GOKU F405 HD
