Improvements

As I make progress I'm finding more and more ways to improve the design, so I'm going to keep a list here.

• Make it smaller - kind of obvious really. Specific ways of addressing this are; smaller bluetooth module, smaller charge capacitor, smaller relay (replace with optical relay) and smaller flyback transformer - I know these exist, TDK electronics make them, I just couldn't get hold of them.
• Custom PCB.
• Different arrangement of components. Tricky because it took me ages just to get the present arrangement.

NOTE: iPhone support is not possible because Apple do not support the required bluetooth profiles.