Most of us are familiar with the tools available to create circuit diagrams, as generally that’s the first step towards producing a custom PCB. But that about the cables and wiring harnesses … ...

The LED is a kind of semiconductor called “light-emitting diode”, which is an electronic device made from semiconducting materials (silicon, selenium, germanium, etc.). It has a anode and a cathode.

It used to be that this would take a lot of wire and bit of soldering (or some special Christmas lights), but the advent of affordable LED strips has really taken the guess-work out of it.