I rarely need an exact amount of time. In fact I generally leave it with the door ajar and a few minutes on the timer.
Even then, a knob works perfectly. It does not need to set the value linearly. The first quarter of the timer could be 5 second increments, and the second half minutes.
Even then, a knob works perfectly. It does not need to set the value linearly. The first quarter of the timer could be 5 second increments, and the second half minutes.