Picture of Multimedia Keypad
I recently got a new keyboard from Das Keyboard and love it. However, one of the drawbacks is the lack of multimedia keys (volume, play, next song, etc...). I really didn't want to NOT use this keyboard, so I decided I'd make something to replace the lost functionality.

This is more of a story of what I did, rather than a full on how-to. Mistakes were made, tears were shed, but I got a very useful keypad out of the ordeal and I hope that this information might be useful to someone else.

Just as a disclaimer: The multimedia key functionality  of the Teensy doesn't work in Windows for some reason. All of the rest of it does, just not the multimedia keys...
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Step 1: Materials List

Picture of Materials List
For this build I used: And the tools:
  • Soldering Iron
  • 3D Printer (Not completely necessary... I just happened to have one)
  • A hand drill
  • Flush Wire cutters
  • Pliers
  • Misc clamps (I used a few large binder clips, also)
I'm almost sure I'm forgetting something...

Step 2: Design

Picture of Design
The design of this thing isn't really all that complicated at all... Thanks to the wonderful tutorials and documentation over at PJRC it was really just straight forward plug in the buttons and run the code (the rotary encoder was a little more involved, but only just).

Timekeepert4 months ago

Hey man/girl,

Awesome instructable, really had fun with this one.
Furthermore I enjoyed all the good puns :)

Keep up the good work!

chipper352 years ago
This is a good instructable....but I'll tell you what I'd love to see: a walkaround of your work bench and all the stuff that's on it!! I love bits about how people have their stuff set up/organized!