Step 12: Further Improvements
A 4x5 matrix of 0805 LEDs would take up the same space as the existing 1206 array. I purchased several types of 0805 LEDs to try in future designs.
The previously mentioned temperature sensor could be added to make an advanced 'club-mode' upgrade package.
The PCB was designed for manufactur by Olimex as a double sided board (~$33). They work straight from Eagle files and panelize (make multiple smaller boards from one big board) for free. I haven't done this, but I would buy one if someone else had them made.
There is a lot of extra space on the PIC. A speedometer/odometer is planned. Games could be added.