Adafruit xbee adapter v1.1 to send and receive data

[Umar Khalid]

I am using xbee series 1 with adafruit xbee adapter v1.1. I have connected one adapter to the computer and other one is connected to Arduino Leonardo. When I use Arduino Serial Monitor to send data (“cool”), I can see it in x-ctu terminal as shown in the image below. But when I try to use x-ctu terminal to transmit data like ”writehere”. I cannot see anything in the serial monitor of the Arduino. I am using following code. Please can you help?

Code: Select all

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3);


void setup()  {
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  Serial.println("Goodnight moon!");
  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  mySerial.println("Hello, world?");
}



void loop()                     // run over and over again
{

  if (mySerial.available()) {
      Serial.print((char)mySerial.read());
  }
  if (Serial.available()) {
      mySerial.print((char)Serial.read());
  }
  delay(100);
}

[adafruit_support_bill]

How do you have the adapters connected to the computer and Leonardo? A photo(s) would be good.

Do you get the same behavior if you swap modules/adapters?

[Umar Khalid]

Yes I get the same behaviour when I switch the xbee modules. On the PC side I am using “USB XBee Adapter” and here is the photo of how I have connected Arduino to xbee module.

[adafruit_support_bill]

The wiring looks right, and if swapping modules doesn't change things then the modules themselves are OK. Post photos of the front and back of the adapter (module removed) and we'll check over the assembly.

[Umar Khalid]

Please have a look at the front and back photo of the module.

[adafruit_support_bill]

Assembly looks good. But the solder joint on the Tx wire (pink) looks like a cold joint. Touch that up and see if that helps.

[Umar Khalid]

I tried soldering the pink wire again but it does not work. when I send data from PC red led "turns on" on the adapter connected to arduino but I can not see anything on the serial monitor. I think may be the code I am using is not compatible with arduino Leonardo.

[adafruit_support_bill]

Aha - the Leonardo! That is likely your problem. You should be able to make it work on a different set of pins.

http://arduino.cc/en/Reference/SoftwareSerial

Not all pins on the Leonardo support change interrupts, so only the following can be used for RX: 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).

[Umar Khalid]

Thanks a lot. Now it is working!!!!!!!!!!!!!!!!! Adafruit products and customer support are the best in the world!!!!! Thanks thanks and thanks a lot again!