The Smell of Coffee in the Morning

The idea:
Everybody likes waking up to the smell of coffee. Nobody would want to wake up without it, given a choice. Now, with as little effort as possible, you can have this every day – Just buy an Arduino, a Raspberry Pi, a 16-key keypad, an PCD8544 based LCD, and some 5v relays... oh, and a coffee maker! You'll be waking up happy 'till the end of your days.

Development notice:
Moving from Arduino+Pi-based design to Pi-only design. To check out the (mostly working) work on Arduino, see the arduino branch.