problems sending message through xbee shield

Development Boards Arduino
1

hi guys.

i currently have this set up

arduino uno + xbee sparkfun shield + xbee

and

xbee + xbee adaptor connected to my PC

code as follows:

#define THRESHOLD 100 // the threshold value
#define SENSOR_TIME 5000 // the amount of time (in milliseconds) that the sensor value has to stay below the threshold (or hold value)
int ledPin = 10; // The digital pin the LED is on
boolean triggered = false; // The "state" of the LED
unsigned long sensor_time; // The last millisecond that the sensor transitioned from being above the threshold and being below it (or the sensor's time stamp)
int sensorPin = 0; // The analog pin the sensor is on


void setup() { // Setup function
  pinMode(ledPin, OUTPUT); // Set the pin mode of the LED pin to output
  Serial.begin(9600); // Initialize the Serial port to a baud rate of 9600bps
}

void loop() { // Loop function
  int sensorValue = analogRead(sensorPin); // Read the value of the sensor

  if (sensorValue > THRESHOLD){ // If the value of the sensor is above the threshold value
    if (sensor_time == 0) { // If the sensor's time stamp hasn't been updated already
      sensor_time = millis(); // store the current millisecond into memory
    }
    else if (millis() - sensor_time > SENSOR_TIME){ // If the sensor's time stamp subtracted from the current millisecond is greater than the hold value
      digitalWrite(ledPin, HIGH); // Set the LED pin high (change to LOW for active low LEDs)
      Serial.print("THE BIN IS FULL");
        delay(10000);

      triggered = true; // Record that the LED has been triggered
    }
  }
  else {
    digitalWrite(ledPin, LOW); // Set the LED pin low (change to HIGH for active low LEDs)
    if(triggered) { // If the LED has already been triggered
      sensor_time = 0; // Reset the sensor's time stamp to 0
      triggered = false; // Reset the state of the LEDs triggered value
    }
    else {
      // Do nothing
    }
  }
}

both my xbees are configured properly.

but my problem i am facing now is that I cant get the xbee at the arduino to send the message to my xbee connected to the computer.

any advice?

2

What makes you so sure that the XBee setup is correct?

Instead of to the Arduino, connect that XBee RX and TX pins together to test the loopback route. Data received by the Arduino Shield Xbee goes from it’s RX pin into the XBee TX pin and through the air back to your PC Xbee. If the PC doesn’t receive back what is send earlier then then there is still something with the XBee setups or reception issues. Your code is an added level of complexity that you should avoid for a moment. Until you have ruled electronic and XBee setup issues out for sure.