I'm working on a program on Arduino to control the Raspberry. My plan is using a button to make Raspberry Pi 4 switch on by pressed button (if i pressed a button for 3 seconds, raspberry will switch on). I want to use a Python script and use GPIO's to send status signals to Arduino, but when I was reading the GPIO signal from Raspberry on Serial Monitor on Arduino I have been able to see this:
A 0 and 1 party, how can i use a 0 or 1 stable signal from Raspberry? GPIO is imposible?
Thank you so much!