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USB Volume Control using Adafruit Rotary Trinkey

USB Volume Control Thumbnail

USB Volume Control

USB Volume Control
Adafruit Rotary Trinkey Thumbnail

Adafruit Rotary Trinkey

Adafruit Rotary Trinkey

Adafruit Rotary Trinkey is a cool, 30-minute DIY build project. And having a nice tactile USB volume control knob on your table is very convenient.

Also, I dig Circuit Python development approach: the device is recognized as a USB drive. To program it, you just edit file using any OS/editor. Changes applied immediately on save. Outputs on serial console. No development environment setup is needed! Nice, easy, and very refreshing.

  • Just enough circuitry for volume control
  • Computer sees device as HID. Simulates pressing keyboard media keys so compatible with any OS
    • Also can simulate mouse, for example for a scroll wheel
  • Play/pause on click
  • Extra touch button (for example for next track)
  • Fits in Airport Tick Tac box
  • Multi color RGB LED which you can use for current volume indicator or system notifications
  • Put in laptops USB port, USB hub, or using an extension cable to get gadget in convinient location
  • Source Code using (Circuit) Python is short
  • Requires tiny bit of soldering

Overall I had a lot of fun with this little gadget. Totally recommend!



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