grangemd:
So I initially had a 33 ohm resistor on my board but was told to remove this and us a internal pull up resistor. So what is the reason for using a external one over and internal one? Just curious.
You had an external resistor IN SERIES with the button (not a pull up resistor).
That does nothing when the button is not pressed.
A pull up resistor goes from pin to VCC.
That resistor pulls the pin up to VCC when the button is NOT pressed, to give the pin a well defined HIGH state.
A pull up resistor can be external (pin to VCC) or internal (with code).
The internal ones are weak, and only ok for short button wiring.
If you get false triggers, then add a 100n capacitor from pin to ground (near the Arduino).
If you still get false triggers, then add a low value external pull up resistor.
Leo..