Once upon a time, [Mike] bought an hourglass for his sister ... o’clock position relative to the current hour. This works out because the pockets on the outside of the bulb’s ring share ...

Tilt sensors are the user input to the hourglass, letting the Pi Pico know which end is up when it’s time to start a new 30-second countdown. [BitBlt_Korry] mentions that the hardest part of the ...