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...
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...
Key de-bouncing in 4x4 matrix keypad

I'm using 4 x 4 keypad to send the output to 2 7-segment LED. problem: key de bouncing problem Summary problem: when I press key, it shows both digit on the left and right. For example, if I...
Key de-bouncing in 4x4 matrix keypad

I'm using 4 x 4 keypad to send the output to 2 7-segment LED. problem: key de bouncing problem Summary problem: when I press key, it shows both digit on the left and right. For example, if I...
Using an 8051/8052 microcontroller to decode a 4x4 matrix keypad

I want to know how to use a lookup table to decode a 4x4 matrix keypad e.g a Grayhill 96 series keypad in 8051/52 assembly language.Please, may you send me example assembly code used in this decoding...