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

Smajdalf November 7, 2017, 6:21am 5

Also consider multiplexing the buttons, it may make it a bit easier.

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