dRonin

dRonin is an open-source autopilot and flight-controller firmware for hardware derived from the OpenPilot and Tau Labs ecosystems. It is designed for acrobatic flying, racing, autonomous flight, and vehicle research. The project supports a broad range of flight-control boards, including OpenPilot Revolution, BrainFPV, Sparky, Quanton, and several racing-oriented controllers. Its architecture combines embedded flight firmware with supporting ground-control and configuration software. Navigation-capable targets can support more advanced autonomous behavior, while lighter boards can be used for racing and manual flight. The project was released under the GPL and presented as production-ready during active development. It is primarily valuable today as a mature open-source reference for multirotor and aircraft flight-control software.