• Problem with basic system keypad interface 4x3
    Hi All, I am trying to interface a simple 4x3 keypad i have never used 89C2051, i am using port 3. The pins i am using are p3.0,p3.1,p3.2,p3.3,p3.4,p3.5,p3.7 this is the basic code i am using...
  • LCD and Keypad
    Hi, Have anyone try connecting a LCD and keypad to the board before... Can you post your script online? Thanks..
  • problem with interfacing keypad
    Hey everoone! I'm using a lpc2138, And I wanna make a mini-project in this way that I have a keypad on port1(rows on P1.16 to P1.19)(columns on P1.20 to P1.23) and a lcd on port0, I want it that Once...
  • Keypad Interface
    Im doing project on ARM7 LPC21248 Board, in that i need to connect keypad and display. So that how can i get pin details for interfacing both keypad and display to the board. Thanks in advance!...
  • how to interface keypad in arm7
    how to interface a keypad in arm7. what is the programing code for it. my keypad using for notice led display