digitalkim
Newbie level 6
![Newbie level 6](/styles/images/ranks/blevel3.gif)
can anybody suggest how can i interface 3×5 keypad with aat89s52 controller..
can i convert 20 key controller ic 74c923 to 15 key controller by connecting one of the x1,...x4 keys to permanently ground or vcc.
if yes wat shud i connect to that pin -vcc or gnd.?
thanks in advance...
can i convert 20 key controller ic 74c923 to 15 key controller by connecting one of the x1,...x4 keys to permanently ground or vcc.
if yes wat shud i connect to that pin -vcc or gnd.?
thanks in advance...