LPC2148basic programming tutorial: In the following LPC2148 tutorial i used books to learn fundamental knowledge about Embedded system. After that i install Keil compiler and Proteus simulator tool to implement following basic LPC2148 programming tutorial:
Interfacing of keypad with LPC2148: In this tutorial keypad is interfaced with ARM(LPC2148) controller. You need to enter password "1234#", you can use this tutorial for security checking projects. If you want to learn more kindly see tutorial on youtube as well.
>> keypad interface with LPC2148 C Code: /* LCD Data lines-> P0.16-23 LCD CONTROL Lines-> P0.8-15 KEYPAD->P1.16-23