Teaching HTML to adult evening classes isn't usually a particularly difficult job. However I have found a major sticking point in teaching them to understand colour-mixing with Hex values. This is an important part of the course even at Level 1, so I had to find a way to teach it so that they could absorb the concept more quickly.

My first idea, as someone who will take any excuse to get their soldering iron out, was to go to my local electronics store and buy the parts with which to build a three-colour torch with a separate dial for each colour. I quickly realised however that this would cost over ’20 to build, and might not produce enough light to be effective. Solution? Build it in software instead!

Plans for version 2: