You'd just set the main timer to 8, the interval timer to 12, and the repeat amount to 60. That may sound a little confusing, but once you use the app you'll find it is not.

The app offers available templates for HIIT, Tabata, and circuit training, as well as the ability to create custom templates and a compound editor where you can combine many interval timers into one.

When the timer with alarm circuit is connected with S1, the pulse from R4 and C2 common point will reset the counter and will start the counting. When it reaches 14 bit, the 13 pin passes in state H ...