Instructions/PCB don't say what the pot and second button do

[sowbug]

[gregsaul]

Hi, thanks for brining this to our attention. We'll try and make this more clear in the instructions.

Like all the inputs on Piccolo these are Configured in each Arduino sketch. In USBTether we use the pot for configuring the pen down or draw height and button 1 for triggering a start draw. But this changes depending on the sketch/program uploaded to Piccolo.