Recommended · for beginners
Debounce a Switch
Why people recommend it
A brief Texas Instruments explainer often cited for hardware switch debouncing, covering a resistor and capacitor filter followed by a Schmitt trigger inverter.
Watch for: One person found plain RC debouncing unreliable without the Schmitt stage
In their words
Here is a short video from TI (they should know) saying that you need the Schmitt trigger inverter here.
Gunther Schadow on electronics.stackexchange.com, Jun 2020. CC BY-SA.