Accurate control of button repeat rate

Work in progress This article or section will be worked on in the upcoming hours or days. See history for the latest developments.

Background

Sometimes you might want to have control over the speed that a repeatable button works - maybe you want it to repeat exactly every 1.325 seconds, or you just want to slow it down. At the end of this article you will be shown how to use a button to set the frequency of a radio. This is certainly a time when the default (system) repeat rate of a button is too fast.