As convenience stores have discovered, there’s an easier way to dole out pocket change, so this year [Nathan] created a change machine that dispenses coins ... used an Arduino, Serial shield ...

Quite an ambitious project for a high school student, but the result speaks for itself. Using an Arduino, coin acceptor ... [Mistablik] even used the vending machine to ask his girlfriend to ...

In Insert Coin, we look at an exciting ... something they could use on any project well into the future and on any board, not just the current rev of the Arduino or Raspberry Pi." ...