I have a micro board attached to two separate buttons on a heat press. One wire on each of the buttons connect to A0 and A5, the other connects to a separate ground pin for each button. The buttons give off a constant 5v until pressed, they then drop to 0v. Heat press example: http://hotronix.com/hea…

Grounding Question

system May 2, 2013, 10:22pm 2

Read up on "pull-up resistors" - it may be a solution to your problem.

-br