uButton

simple button library with de-bounce

Features

Software debounce prevents trigging a response mutiple times on a single button press
Supports buttons that are connected ground or V+

uBotton yourButton( pinNumber, normalState );

The pin number can be any normal arduino pin.
The pin is configure by the library as an input.
The normal state is the HIGH or LOW state of the input when the button is not being depressed.
When the normal state is set to HIGH, the internal input pull-up resistor is enabled. This allows for a button that is attached to ground to with no other external components.
When the normal state is set to LOW, and external pull-down resistor must be used in addition to a switch attached to V+.

if( yourButton.check() ) // this will return TRUE once for evey button press
{
  executeYourCode();
}