maybe such a tool (or a vaguely similar one) already exists, but I don't know it and couldn't find one.
My idea: a simple tool with 2 settings:
- number of intervals
- duration each in seconds
It would then just display something on the screen (in a way that's visible from a distance, so maybe by using 50% of the screen size) that alternates every [duration each in seconds], as often as wanted ([number of intervals]).
Another option could be a sound being played every [duration each in seconds] in addition to what's on the screen, so that it works with exercises where one can't face the PC too.
Would love such a tool!
PS: 30 pushups, anyone? (Not me [yet?])