allowing the D1 to count the number of digits that have flipped over and thereby deduce the current state of the display. There’s plenty of fun to be had with classic flip clocks like this ...

Flip Clock ' is a free plug-in for OBS that displays ... You can use the timer function by changing 'Clock type' to 'Timer'. Enter the number of minutes you want to measure in 'Timer value ...

Earlier this year, we mentioned in a Hackaday Links article that [Spencer Hamblin] was in the process of building a seven-segment flip clock. Well, it’s finally finished, and it looks great!