Project help!! Arduino issue

[Nayana]

I am doing a project on farm monitoring.
It involves a network of zigbee routers (currently 2 routers). each with 3 sensor attached.
The coordinator is receiving i/o packets from these router, as checked on xctu.

I wanted to mount the coordinator on arduino, so that I can view packets received on serial monitor.
But I am not able to upload the code onto the board. It is getting compiled successfuly .

It shows issues /error messages like "com port busy" or "board can't be accessed" or some sync issue.

Both arduino and zigbee are at 9600 baud rate.

The code I wrote was:

void setup()
{ Serial.begin(9600);
}
void loop()
{
if(Serial.available()>=21)
{
for(int i=0;i<22;i++)
{
Serial.print(Serial.read,HEX);

/* I tried replacing this line with Serial.print(Serial.read());*/
/* I also tried
byte now= Serial.read();
Serial.print(now,BYTE);
*/
}
}
}

The connections I made were:

arunio vcc --> xbee vcc
arduino gnd --> xbee gnd
arduino tx -->xbee rx
arduino rx -->xbee tx

Please suggest what can be done to solve this issue.

 

[Harald Kapp]

Try uploading the code without the coordinator attached (bare Arduino). When succesfull, remove the connection to the PC and re-attach the coordinator. I think I rmember that the Arduino cannot serve both serial ports simultaneously.