Unexpected electrical behavior of LM555 in printed PCB

[PerryBebbington]

@PerryBebbington

As @MarkT has pointed out you don't need to debounce rotary encoders, if you use a state based approach to reading them no debouncing is required.

I and others have made this comment often in questions about rotary encoders, but I've never seen anyone explain it. Here is my explanation: Reading rotary encoders as a state machine