QuadFS is an open drone flight controller built from the ground up in embedded C on an STM32 microcontroller.
Every stage of the system is documented and explained so developers can understand how a complete flight controller works, from raw sensor data to stable flight.
Safety: ⚠️ Always remove the propellers during bench testing and follow appropriate safety procedures.
Work through these checks in order.
Do not attempt flight until the sensor readings, motor behaviour, radio input, and control directions have been verified.