Hi ( newbee here )
I am trying to make a reflex board game, consisting of many illuminated pushbuttons, organised in modules ( 9 modules ), every module is consisted of 8 pushbuttons. Those modules are daisy chained og connected at the end to an arduino.
The LED part of the illuminated button i going through a 74hc595
The Button part of the illuminated button is going through a 74hc165
at the end i have 7 outputs going to the arduino.
My question is would it be better to connect hc165 and hc595 together so i only use 4 pins ? or is it better to let them be separat ?
Thanks