I want to send a character 'A' from 8051 by rf transmitter to an arduino uno where rf receiver is connected, and an led will glow only when 'A' is received.
I don't want to use the tx and rx pins of arduino. (I was able to transfer data between two arduinos using Radio Head library through digital pins.)
I am using the tx pin of the 8051 to send 'A'. But I want any other pin than the rx pin to receive it.
I need help in programming the receiving part. The Radio Head library and Virtual Wire libraries won't work, the arduino is not detecting anything even when the receiver receives the signal.
Please anyone can you suggest any other library or any other way to receive and check the signal to be 'A'?