Specifications
MCU: STM32G474CE, 170MHz Cortex-M4 , 512KB Flash
IMU: ICM42688-P
Baro: SPL06
Blackbox: 128MB Flash (1G-bit NAND)
3x UARTs (1, 2, 3)
1x I2C
8x PWM (4x Servos, 2x Motors, RPM, LED)
2x ADC (VBAT, Current)
USB Type-C(USB2.0)
Electrical characteristics
Input voltage range: 5.4V~30V (2~6S LiPo)
No current sensor integrated, support external 3.3V based current sensor.
Battery Voltage divider 1K:10K (Scale 110)
BEC 5V 2A for FC and peripherals
BEC Vx 5A cont. 8A Peak for servos (5V, 7.2V option)
3.3V 300mA
Firmware/config
Rotorflight / MATEKG474HELI
Physical
Mounting: 20 x 20mm, Φ4mm with Grommets Φ3mm
Dimensions: 38 x 26 x 13 mm
Weight: 15g (w/o pins)
3D step file
Including
1x G474-HELI
1x PicoBlade 1.25mm Servo adapter (M2/S2 servos)
1x 20cm JST-GH-4P to JST-GH-4P cable
1x 20cm JST-GH-6P to JST-GH-6P cable
Dupont 2.54 pins (Board is shipped unsoldered)
Rotorflight configurator 2.x https://github.com/rotorflight/rotorflight-configurator/releases
Rotorflight Wiki https://github.com/rotorflight/rotorflight/wiki
Flahing firmware
[Firmware preloaded in factory] rotorflight_4.3.0_MATEKG474HELI.hex (built from RF2 devel branch of Nov.1). Load firmware (local) –> Flash firmware.
[Flashing with latest RF2 fw] Select “MATEKG474HELI” target in Rotorflight configurator –> Load firmware (online) –> Flash firmware.
[Flashing with latest RF2 fw] Select “STM32G47X” target in Rotorflight configurator –> Load firmware (online) –> Flash firmware. After flashing and G474-HELI rebooting, connect G474-HELI to RF configurator, go into CLI mode, copy and paste all config lines into CLI, type “save”, press ENTER.
MATEKG474HELI.config
