I’m a newbie, so apologies if I’m doing it all wrong. I’ve got my music shield several days ago and since then trying to figure what digital pins it uses and what’s left. I need to wire 6 buttons in my project which means I need at least 5 digital in’s. I was looking through the docs with board design pictures and at the board itself, but can’t figure what’s unused. There are some pins (1 and 10-13) that look vacant, but still labeled (10-13).
If it uses all of digital pins, is there a way I could share them somehow? Also, since I don’t need control buttons (volume, rew, play etc), could I hook on to them somehow?