Keypad input on one pin - Very cool
- http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1170140545/4
- http://www.avr-asm-tutorial.net/avr_en/keypad/keyboard.html#adc
Basically a resistor network - but a little more complicated to setup - worth it !
Keypad input on one pin - Very cool
Basically a resistor network - but a little more complicated to setup - worth it !