
Ever had an issue with people not sticking to their allocated presentation time at one of your events? I certainly do …
After another round of testing at our MQV Annual Meeting in Eichstätt in October, I put together a new version of my little timekeeping tool available at timekeeper.mehlhase.info.
I usually have it running on a Raspberry Pi using Chromium in kiosk mode and use chroma keying on an ATEM Mini Pro to overlay the presentation source with the timer display, all controlled by a tiny five-keys ‘keyboard’.



If you wanna give it a try, here’s the relevant keys:
- 1 – reset the timer (to last starting time)
- 2 – decrease time
- 3 – increase time
- 4 – start/pause time
- 5 – switch visibility (disappearing / always visible)
- 6 – switch visual punishment mode (for what happens after the time is up)
Let me know if you have any questions, comments or feature requests. Enjoy.