To make something work using electricity there needs to be an electrical circuit; a circuit is a complete loop that electricity can move around. Electricity moves from the power source (the ...

If you’re going to attempt DIY electric wiring, you better be prepared to understand how to connect all these wires correctly. It’s not for the faint of heart.

The electronic version is also simple to make, and is a great introduction to the concept of circuits – the cornerstone of many maker projects and core knowledge for the budding robot-builder.