Matek G474-HLite RC Helicopter Flybarless Flight Controller 2-6S Rotorflight

The Matek G474-HLite Flybarless Flight Controller is a specialized flight controller designed for RC helicopters, offering robust performance with the Rotorflight firmware. With its powerful STM32G474CE MCU running at 170MHz and advanced IMU for precise flight stabilization, this flight controller is the perfect solution for 2-6S RC helicopters. It includes multiple features such as 6 PWM outputs for servos, motors, and RPM monitoring, making it an ideal choice for advanced hobbyists and professionals alike.

Specifications

• MCU: STM32G474CE, 170MHz Cortex-M4, 512KB Flash
• IMU: ICM42688-P for accurate flight data
• Barometer: SPL06 for altitude sensing
• Blackbox: 128MB Flash (1G-bit NAND) for data logging
• 3.5x UARTs (UART1, UART3, UART4, and UART2_RX)
• 6x PWM outputs (4x Servos, 1x Motor, RPM)
• 1x ADC for VBAT sensing
• USB Type-C (USB 2.0) for easy connectivity

Electrical Characteristics

• Input Voltage Range: 4.5V~14V on “Vx” pad
• BEC: 5V 1.5A output for FC components and peripherals
• Battery Voltage Divider: 1K:10K (Scale 110)
• Static Power: 60mA@5V
• No integrated current sensor

Physical Specifications

• Dimensions: 30 x 23 x 13 mm
• Mounting: 16 x 16mm, Φ4mm with Grommets Φ3mm for vibration damping
• Weight: 9g (without pins)

Included in the Package

• 1x G474-HLite Flight Controller
• 2x 20cm JST-GH-4P to JST-GH-4P cables
• Dupont 2.54 pins (board is shipped unsoldered)

Firmware and Configuration

• Firmware: Rotorflight (MATEKG474HELI preloaded)
• Configurator: Rotorflight Configurator 2.x
• Follow instructions on the Rotorflight Wiki for configuration
• For firmware updates, select "MATEKG474HELI" or "STM32G47X" in the Rotorflight Configurator

Tips for Optimal Use

• Includes silicone grommets for vibration damping; additional damping is not required.
• No UART2_Tx breakout on this board.
• No “M2” breakout pad. For helicopters with a motorized tail rotor, remap servo 4 to motor 2 using CLI command.
• No current sensor breakout pad; you can remap Rx2 or RPM pin for current sensing.
• Set current_meter to NONE if no external current sensor is used.
• If the flight controller is mounted backward, set gyro_1_sensor_align to CW0FLIP.
• Enable the RPM filter for bi-directional DShot ESCs using Rotorflight’s features.