RTC sleep and interrupt callback clarification

[pythoncoder]

Fair point.

[dhylands]

Here's another good article I found on switch bounce including some simple external circuitry you can use to tame it:
http://www.allaboutcircuits.com/technic ... l-with-it/

[pythoncoder]

It's trivial in code if you're running a cooperative scheduler. If the pin state differs from the debounced output state, wait for a period and check again. If they still differ, change the debounced output state and optionally execute a callback. The key point being that during the wait, the processor gets on with other tasks. (I appreciate this is familiar territory to you, Dave )
e.g. https://github.com/peterhinch/Micropyth ... /switch.py