8051 basic programming tutorial: In the following 8051 tutorial i used books to learn fundamental knowledge about Embedded system. After that i install Kiel compiler and Proteus simulator tool to implement following basic 8051 programming tutorial:
Interfacing of keypad with 8051: In this tutorial keypad is interfaced with 8051(AT89C51) 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.