• 8051 Keypad peripheral
    Anyone knows of a keypad peripheral for keil? I'm trying to emulate the hardware environment, and it will be very helpful to use one...
  • Keypad problem
    I use ATMEL 89c51 microcontroller with keypad 4x4. My problems is that my 1st row contain 1 2 3 A it display 1 2 3 A for every row i checked the code on proteus8 its working fine and also on 8051...
  • keypad
    hi,what is the driver for an 8 bit keypad?i need ur help,urgent.tnx
  • problem with keypad code
    Got another problem here... i am using 74c922 ic together with the keypad and i am using external interrupt for the keypad code. i want to store four different numbers into an array. when i...
  • Keypad Help
    Hey guys, I am currently trying to interface a 4x4 matrix keypad to 89c52. i have conntected the keypad to 89C52 column and row. Pin 12 is for column1, pin 13 for col 2, pin 14 for col 3, pin 15 for col...