vikrant verma
Newbie level 3
hi all,
I want to implement a keyapad same as used in cell phone and in mobile phones.
I interfaced 5x4 keypad with AT89s52 it is working fine, i mapped the key as 0,1,2,3......9 and A,B......H.
now i want it to work like cell phone keypad in which a single key is mapped to different values. like in our mobile phone key number 2 also displays a,b,c
key number 3 displays d,e,f and so on. all it depends on the time inbetween key is pressed.
so if any one is having code of like this please help me.
I want to implement a keyapad same as used in cell phone and in mobile phones.
I interfaced 5x4 keypad with AT89s52 it is working fine, i mapped the key as 0,1,2,3......9 and A,B......H.
now i want it to work like cell phone keypad in which a single key is mapped to different values. like in our mobile phone key number 2 also displays a,b,c
key number 3 displays d,e,f and so on. all it depends on the time inbetween key is pressed.
so if any one is having code of like this please help me.