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?

Connecting a 4*4 keypad

system May 1, 2014, 5:54pm 5

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