The JHEMCU G474ELRS is a lightweight all-in-one flight controller designed for ultra-compact FPV builds using 1–2S power. Featuring an STM32G474 MCU and an integrated independent ELRS 2.4GHz receiver, it delivers reliable control, stable power delivery, and clean HD video support in a minimal footprint. With dual BEC outputs including a dedicated 9V boost circuit for HD video systems, this AIO eliminates HD black-screen issues on 2S setups while maintaining low weight and efficient power handling. Key Features: STM32G474 MCU running at 170MHz for responsive flight control Integrated independent ELRS 2.4GHz receiver (non-SPI) ICM-42688-P gyro for smooth and stable performance Built-in AT7456E OSD for Betaflight compatibility Integrated 12A ×4 AM32 ESCs for 1–2S micro builds Dedicated 9V / 2A boost BEC for HD video systems No HD black screen issues when running HD systems on 2S Ultra-lightweight design ideal for whoops and micro FPV drones Flight Controller Specifications: Brand: JHEMCU Model: G474ELRS MCU: STM32G474CE (170MHz, 512KB) Gyroscope: ICM-42688-P OSD Chip: AT7456E Barometer: No Blackbox: 8MB onboard Flight Firmware: Betaflight 4.5.2 (JHEG474 target) Power & BEC: Input Voltage: 1–2S LiPo 5V BEC: 5V / 1.5A (Buck-Boost) 9V BEC: 9V / 2A (Boost, for HD VTX) ESC Specifications: ESC Type: 4-in-1 AM32 Continuous Current: 12A ×4 ESC Firmware: BlueJay Z-H-30.HEX ESC Protocol: DShot600 (default) Current Sensor: Yes Receiver & Wireless: Receiver Type: ELRS (Independent, non-SPI) Frequency: 2.4GHz Signal Protocol: CRSF WiFi ELRS Firmware Update: Supported Connectivity & Interfaces: UARTs: UART1 (SBUS), UART2 (VTX), UART3 (Internal ELRS), UART4 (GPS / peripherals) I2C Interface: Supported Camera Input: Supported LED Programming: Supported Buzzer Output: Supported Physical Specifications: Board Size: 30 × 30mm Mounting Pattern: 25.5 × 25.5mm (M3) Weight: 4.6g Notes: When using 1S power, motor startup power may need to be increased in Betaflight if motors do not start reliably Package Includes: 1x JHEMCU G474 ELRS AIO Flight Controller 1x 220µF 16V Low-ESR Capacitor 1x IPEX 2.4GHz ELRS Antenna (Gray) 4x 3-Pin Connectors 4x M2×6.5mm Shock-Absorbing Silicone Grommets 2x 20AWG Power Wires 4x 1.4×5mm Cross Head Screws 1x XT30 Battery Connector
