I spent a fair amount of time a few weeks back looking at hardware debouncing for multiple quadrature encoder's inputs to a low power MCU. I didn't want to spend clock cycles working out if a mechanical encoder output was bouncing. I prototyped an R/C -> Schmitt trigger inverter circuit (after worki…

Debouncing many switches used for MCU input via a shift register

PaulRB November 6, 2017, 9:41pm 4

If you are using the Teensy, it has a 32bit MCU. So you can do your bitwise maths in 32 bit chunks.

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