This kitchen timer is powered by a lipo battery with an Atmega 328p a 32kHz quarz to provide correct timing. I did a lot of primer filler and a lot of sanding to have a smooth surface. After sanding I used acrylic spray paint.

The wall hook for the case can be mounted with Tesa Powerstrips to the wall. The case has two small notch to fit into the hook.

The code is located at [https://github.com/hggh/kitchen-timer-round](https://github.com/hggh/kitchen-timer-round)

functions:

• warns at low battery
• display: MM:SS timer from 30 seconds to 90 minutes
• display a message if battery is fully loaded
• alarm time is configureable from 0,5 seconds to 20 seconds (beeping)