I have a shield, that I mentioned in a different thread. I have a button on IO pin 39, which if I watch with Logic Analyzer is pulled down to zero when I press the button. However my code is not detecting it. I will double check it again with Analyzer, but here is a simple test case: #define LED1 …

Button (digitalRead) not working on pin 39?

KurtE February 9, 2013, 8:38pm 13

Thanks,

That appears to help!

Kurt