Please refer to File > Examples > 01.Basics > /DigitalReadSerial. I've wired my board exactly as specified. It's the same wiring as for Examples > Digital > Button, which works perfectly. Problem is, the serial monitor window does not update as the button is pressed. Yes, the baud is set for 9600. Yes the same wiring works fine wit the digital/ button example. Would an Arduino wizard please venture a remedy. Thanks so very much. Peter, still very much a novice.
You wired it exactly aa specified. ..
How do we know?