I want to build a keypad matrix to interface to a microcontroller. In order to avoid constantly polling the switches I plan to utilize interrupts, which will require hardware debouncing (I believe).
My question is how to go about debouncing a keypad matrix (4x3) in hardware. I have googled this problem but have only found software debouncing.
Thanks in advance
My question is how to go about debouncing a keypad matrix (4x3) in hardware. I have googled this problem but have only found software debouncing.
Thanks in advance