Betaflight
Betaflight is an open-source firmware for flight controllers used in multirotor drones, primarily in FPV racing and freestyle. It originated as a fork of Cleanflight by the Betaflight Team in the mid-2010s and has since grown into a widely used platform maintained by a global community of developers and pilots.
Key features include a configurable PID control system, multiple flight modes (Angle, Horizon, and Acro), advanced
Hardware and software: Betaflight runs on flight controllers with ARM Cortex-M MCUs (commonly STM32 F4/F7/H7) and
Impact and community: Betaflight is widely adopted in FPV racing and freestyle communities due to its performance