Yesterday 18th December saw 4 participants enjoy a hands-on day building a variety of handy but useful circuits. Next offering will be on 11th January (Friday) when I’ll be covering the PIGGYAXE system.
On the development front I have updated the Joule Thief PCB to take account of difficulties pupils found when assembling them and have also added an option for a tiny switch. Bu using this and reverse-mounting the parts (sort of surface mount, even though you use the holes) you can fix the PCB to the back of a single AA cell holder. Now you can’t make a product much smaller than that! Photos to follow in the Electronics that work section.