here i am sending you some of

[dagakshay]

here i am sending you some of the links which havn’t used counter but i may help you some where

http://www.engineersgarage.com/microcontroller/8051projects/Bidirectional-visitor-counter-AT89C51-circuit

http://www.engineersgarage.com/microcontroller/8051projects/clap-counter-using-8051-AT89C51-circuit