Thanks Jack
I have made the changes advised:
int incomingByte = 0; // for incoming serial data
void setup()
{
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
void loop()
{
if (Serial.available() > 0) {
Serial.write(Serial.read());
}
}
When setting the Serial.available I presume there is no general preference between having it on an if or while?
After making the changes the sender is still sending hello (listed on COM7 putty session) but there is now no activity on the Coordinator COM8 session...
If that is the case and a statement has been added to only print when it's receiving something through Serial.read - am I correct in thinking I have either done something wrong or there is nothing coming through the serial to read and write?