USB Volume Control using 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 code.py 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!

#DIY #Adafruit

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