could you please post the ir sensor with 8051 microcontroller interfacing code.and which software should use. please give a little description. actualluy i have to send signal of ir sensor in laptop and for this i have 8051 , ir sensor and usb to serial converter rs232 .could u plz guide how i work ? actuallly i am trying to work on keil software ..is this a right option ? plz guide ……..