we are using ASK module RF transmitter and receiver and AT 89c51 controller..... i need to transmitt the data from PC to trnsmitter and receive it in the receiver side and display in LCD display... how the PC and transmitter is connected....by what means data is transmitted and received.what component is need to connect PC and transmitter.... can you please help me with source code and circuit diagram>.
If you already use the transmitter module, then it should be easy to look closer to find out how it is connected to the PC.
If you aren't using the transmitter module, but your school have given you an assignment, then it would be up to you to figure out how to electrically interface the transmitter to the PC, and the receiver to your microcontroller. Or did the school assign you with finding someone else on the net to do the hardware design and the programming? Wouldn't that be a school assignment in begging then? You plan to become a certified beggar, or a sw and/or hw developer?