I admit many (if not most) of my projects have virtually no "practical" applications. This is different.

My wife and I play Super Big Boggle almost every day - it's good mental exercise and a great way to exercise and expand your vocabulary. (My skill is in building up a lexicon of  archaic vulgar words). (Note: said skill has not given me the edge. I usually lose ):

Now, after many hundreds of games, the little "hourglass" 3 minute egg timer has started to stick - kind of annoying when you finally notice after 4 minutes that the timer  hasn't moved.

The obvious solution might be to "buy a new timer," but not for me. I've got a lot of Circuit Playground Express devices (I REALLY like the CPX!) so it made sense to me to just program a timer with the CPX, so I did. 

The Makecode project is here

To use it,

1. download it to your CPX
2. press A to start the timer (or restart)
3. press B to pause/un-pause the timer
4. "Shake" the CPX to stop, clear the current timer and get it ready to start another 3 minutes

When running, a pixel blinks clockwise around the CPX, first Green, then Yellow and for the last minute Red. When it's done the "Magic Wand" sound plays.