Skip to content
No description, website, or topics provided.
  1. Other 100.0%
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.


When listening to music at work I find it really annoying to adjust the volume in my OS. Having seen a bunch of projects where they build an external volume knob, I thought why not make my own. I bought a couple off digispark clones a while ago and these seem the perfect solution for this. Add a rotary encoder plus a fancy knob and you have all the parts. I followed the adafruit tutorial (they use a trinket, essentially the same as a digispark) and made some changes to the code.

I now have the following controls using my know:

  • Single click: Pause/Play
  • Double click: Mute
  • Turn: Volume
  • Hold and turn right: Next track
  • Hold and turn left: Previous track

Now that the hardware worked I needed a case for it. In Amsterdam, where I live, there is a makerspace ZB45 where on Tuesdays you can use the laser cutter (and other stuff) for free. So that is what I used. I used it before to make a case for my WiFi Enabled Traffic Light, but this time I wanted the case round, so I came up with the following drawing.


I cut all the parts a couple off times and in two different thicknesses, ±3mm and ±5mm. Then I went home and started putting the puzzle together.


I ended up with the following configuration (bottom to top):

  • 1 in 3mm
  • 2 in 3mm
  • 2 in 5mm
  • 2 in 3mm
  • 4 in 3mm
  • 5 in 3mm


Next version needs to be heavier, or maybe I will add some lead pellets in this version, there is room for it in the bottom layers.

You can’t perform that action at this time.