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 ...

Earlier this year, we mentioned in a Hackaday Links article that [Spencer Hamblin] was in the process of building a seven-segment flip ... the clock face left to do: AM/PM and whether the alarm ...

Enter the number of minutes you want to measure ... However, the timer only measures the set time and does not have an alarm function. Flip Clock displays the time with a smooth animation of ...