Still new to Arduino and electronics. I have a simple project where I need 5 push buttons (left, right, up, down, reset), a relay for turning on a pico projector and a a Servo motor serving as a "shutter" for the pico projector.
I've tried these separately (except the relay) and they work as I expected.
Now I need to put it all together. This is where my poor electronics knowledge shows. 5 buttons and a relay, how should I make them work together without issues? Connecting all of them to GND or some basic electronics concept I'm missing here which will get me into trouble?