GAAS is an open-source program designed for fully autonomous VTOL(a.k.a flying cars) and drones. GAAS stands for Generalized Autonomy Aviation System.

Teensy/Arduino flight controller and stabilization for small-scale VTOL vehicles

DJI Onboard SDK Official Repository

Making an ESP32-based quadcopter from scratch

Flight controller software for hobbyist - build your own flight controller.

A quadcopter flight controller based on Arduino Uno

The most simple, but working, quadricopter flight controller from scratch, using Arduino Uno/Nano.

Geometric controllers developed at FDCL for UAVs

Raspberry Pi based drone flight controller and remote control

JSBSim bridge for PX4 SITL/HITL simulations

Flight controller for an autonomous quadcopter drone.

UAV Dynamics and Autonomous control (LQR, MPC, Adaptive, Non-linear, Geometric Control, Cascaded Control , Estimation/filtering )

A Flight Controller board for a quadcopter based on YMFC Joop Brokking's code.

Rocket stuff (amateur rcandy rockets). Mostly based on Arduino.

Complete code for the drone's flight controller, including the code for the PID controller, IMU support, filters, ESC modules, and more.

An Arduino/AVR based flight controller for RC fixed wing.

ESP32 Flight Controller for quadcopters

Flight controller firmware for micro brushed quadcopters based on the atmega32u4 chipset.

An Arduino-based flight control system for radio-controlled aircraft

Wi‑Fi quadcopter flight stack with browser UI