So I need some help with a function that does not seem to be working as expected. I am trying to write something that will create a 4 digit pin number string. I want to use 4 buttons to do this: up, down, enter and back. The up and down buttons should increment or decement the digit and pressing ent…

button hell

jremington April 25, 2014, 3:13pm 2

Where do you set the input pin modes to INPUT_PULLUP?

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