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README.md
VolumeKnob.ino
case.png
case.svg
finished.jpg
puzzel.jpg

README.md

VolumeKnob

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.

case

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.

puzzle

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

finished

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.

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