These tutorials have been written for 
Eirspace, a student club building model rockets and drones. Feel free to look at the projects we are working on!
License : 
Introduction to Arduino : What’s this ”Arduino” thing everyone’s talking about ?
Multicopers and drones : how do these things fly?
KiCad cheatsheet (Landscape version)
Version Control Systems : Comment organiser et partager proprement le code de vos projets