How Unmanned Aircraft Work: Lift, Control and Payload

How drones work, explained through the four forces of flight, the parts inside a small unmanned aircraft and the trade-offs between wings and rotors.

C Programming for Beginners: Variables, Loops and Functions

Learn the core of C programming for beginners: declaring variables, using for and while loops, and writing functions, with short examples you can compile.

How to Build a Line Follower Robot: Parts and Steps

A practical walkthrough of how to build a line follower robot with an Arduino, IR sensors and a motor driver, from wiring to tuning the turns.