insanehadi:
Basically all I need is to connect a 4*4 keypad onto my arduino using the port from 8 to 13 that means that I have only 6 pins free on my arduino but I need 8 to connect the keypad. How can I do it :)? Also can I use pins 0 and 1 on my arduino since they are not being used by the lcd?
The first question that comes to mind is: "Do you realize that analog pins can be used as digital pins?"