what i mean by connected with air, means that there are no wires wich connects them.
If there is nothing connecting them, how do you expect data to get from one to the other?
and about the power led.. it indicates that power is ON, but i want i to turn off when i recive data, this is the only way that i know that data is recived.
but since the powerled doesnt turn off, there is either no data recived or transmitted.
On my Arduino, the only way to turn the power LED off is to remove the power source. I suppose you could connect a relay, and disconnect the power to the Arduino, by toggling the relay when data is received, but that defeats the purpose of having received data, doesn't it?
Unless you are talking about some other LED, in which case it isn't the power LED.