Description What is RotorFlight? RotorFlight is a cutting-edge open-source flight control software project, designed specifically for helicopters. This project focuses on providing advanced flight control solutions, with an emphasis on performance, reliability, and adaptability. RotorFlight’s software is developed with the community in mind, encouraging contributions and modifications to suit a wide array of helicopter configurations and applications, from hobbyist projects to more sophisticated commercial drones. Based on Betaflight, it has a similar look and feel, easy to use, and has V2 coming soon. https://github.com/rotorflight Features of RotorFlight Optimized flight control algorithms for superior stability and responsiveness. Supports a wide range of hardware platforms for enhanced compatibility. Advanced tuning capabilities for customized flight characteristics. Robust safety features including rescue fail-safe options and real-time diagnostics. Open-source framework encouraging community innovation and collaboration. V2 coming soon! 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 Rotorflight configurator 2.x https://github.com/rotorflight/rotorflight-configurator/releases Rotorflight Wiki https://github.com/rotorflight/rotorflight/wiki Latest info: https://www.mateksys.com/?portfolio=g474-heli#tab-id-5 Tips If GPS, Receiver or other peripherals are connected to UART2(Tx2,Rx2) and these peripherals are powered ON while connecting USB. STM32G474 will not go into DFU mode. It is related to DFU protocol used in the STM32G474 bootloader. Pls unplug peripherals from UART2 before you try flashing the FC. There is no UART4 breakout on this board. If using Frsky SBUS SmartPort receivers. you may remap one of PWM pins to softserial_tx for SmartPort, e.g. LED pin, resource serial_tx 11 A15 , feature softserial . Due to leakage voltage on MCU I/O, there is floating current readout when no external current sensor connected. If you don’t use external current sensor. set current_meter = NONE . If the FC is mounted with arrow facing backward. set gyro_1_sensor_align = CW0FLIP Blheli bi-direction Dshot ESC, enabled RPM filter: feature rpm_filter Physical Mounting: 20 x 20mm, Φ4mm with Grommets Φ3mm Dimensions: 38 x 26 x 13 mm Weight: 15g (w/o pins) 3D step file for designing your own. STL for shell shown below: G474-HELI_shell 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)
