JHEMCU G474ELRS AIO All-in-One 12A ESC Flight Controller w/ ELRS 2.4G Receiver

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