i connected a led to D13 on the arduino uno on a breadboard. next my code puts D13 high in the Setup(){}
so im not talking about the arduino uno wich transmits, but im talking about the arduino uno standalone wich should recive.
So, you are not talking about the power LED, and you still having nothing that sends data and nothing that receives data. And, you still can't understand why you can't turn the power LED off when data is received.
Did I miss something?