Digispark USB Volume Knob (micro USB jack)

thingiverse

Here's how to build a USB volume knob using Digispark with micro USB port. To start, make sure you have a Digispark with a micro USB port. Since the case won't fit over the port, I modified the top and bottom of the case in SketchUp to accommodate it. To keep things simple, I also created separate standoffs for mounting the board instead of taking the time to incorporate them into the bottom. I redesigned the colored ring by adding a lip around the outside of the top to hide the gap between it and the case. Since my screws were a little too long for mounting the board, I made a pair of spacers as well.