hi, i’m actually using a 4×4 | Miscellaneous › Others › Circuit diagram for 4*4 keypad interfaced with P89V51RD2 › hi, i’m actually using a 4×4 February 2, 2011 at 7:03 pm #5402 sudarshanParticipant hi, i’m actually using a 4×4 keypad…but den i thought d c code in d links u provided might work out, but wen i did, its really not working, d lcd is showing d values randomly (i.e. without any keypress)…plz hlp me
