• 4x4 Matrix keypad help
    Hi, i am new to ucontroller programming. I wanted to make some password and 7-segment display projects using 4x4 matrix keyboard as input, in C. I just need some simple example links or sample code...
  • Matrix Keypad for Atmel AT89C51SND1
    Hi all, I'm quite new at this, so please bare with me. I have a question regarding Atmel AT89C51SND1. For my application I need 12 different keys. As i understadn the AT89C51.. has 4 interrupt driven...
  • Suggest changes to the code for matrix keypad
    I wrote this code for displaying the key on the LCD that is pressed in the matrix keypad. The program is not working in the hardware platform.Kindly suggest changes to the code: #include<reg51.h...
  • LPC2148 4x4 Matrix Keypad Issue
    i m a M.Sc Electronics Student and now i have been told to interface the keypad on the Dev kit the board is Called Spirit II from Oasis, it has a LPC2148. the keypad is a matrix keypad. now whats done...
  • keypad lcd
    i need source code of keypad, LCD, sent into my web site