Hi i am an italian student and i'm working about a domotic home with an alarm and a keypad to generate a code and a lcd display, i want to know if this program is right....i have to control two magnetic sensor with arduino and a keypad 4x4 to switch off and on the alarm. The program isn't complete …

problem with a alarm program

system April 29, 2014, 8:54am 2

and a keypad

So, why are you NOT using the Keypad library?