In this video, you will learn how you can stabilise your quadcopter drone using a PID controller. The controller that will be used will stabilise the drone based on its roll, pitch and yaw rotation rates The purpose of this video series is to learn the basics behind a quadcopter drone and enable you to build one yourself, by dividing this challenging project in several easy-to-understand parts. You use the capable Teensy 4.0 microcontroller together with the easy-to-use Arduino language. Full code available on GitHub: https://github.com/CarbonAeronautics