Whether you're saving up for a rainy day or you're adding that bit of realism to your mame arcade cabinet to handle those extra coins for credits, join the bald engineer as he adds capacitive sensing to organise and sort coins using Arduino and Texas Instruments microcontrollers helped out by an oscilloscope. Do you think it works better as a coin bank or useful in a vending machine? Let the team know how you've used capacitive sensing or coin returns on the element14 Community.