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My receiver xbee is receiving data even if the transmitter is disconnected , so if i am sending the string hello world , the receiver will repeat this string .

void loop() {
    Serial.println("Hello");
    delay(1000);
}


void loop() {
     if(Serial.available()>0){
         Serial.print((char)Serial.read());
     }
} 
2
  • And what is the question?
    – Gerben
    Sep 17 '14 at 10:18
  • @Gerben there is no question there is a problem Sep 17 '14 at 16:14
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As @Garben mentioned, we do not know what is your question, problem or whatever... Provide some more information about wiring. I looked at your question 5 mins and still can't get what is wrong...

What are you doing here??? Sending from Arduino+XBEE to another Arduino+XBEE???

void loop() {
    Serial.println("Hello");
    delay(1000);
}

Here you are resending what you got

void loop() {
     if(Serial.available()>0){
         Serial.print((char)Serial.read());
     }
} 

So what is your problem? Or is this all your code??? Arduino has to have

void setup(){
//Set up your Arduino here
}
void loop(){
//Code here will run over and over and over...
}

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