I’m trying to use two Xbee pro 9b’s (http://www.digikey.com/product-search/e … vendor=602) for communication from an Arduino to a computer. I am using both Sparkfun explorer boards (https://www.sparkfun.com/products/11812) and (https://www.sparkfun.com/products/11373), and, based on the comments for those products, I removed the RSSI LED from both. Prior to removing it, I could not download firmware to the XBee Pros.
After firmware was downloaded, however, I have tried to use the example code from here: https://learn.sparkfun.com/tutorials/xb … ation-test (see below) to send simple characters. Every time, however, question mark or random (incorrect) characters are printed. Is there something wrong with the board, or setup? Both XBees are running the same firmware (#3114), and I don’t know what the issue could be.
/*****************************************************************
XBee_Serial_Passthrough.ino
Set up a software serial port to pass data between an XBee Shield
and the serial monitor.
Hardware Hookup:
The XBee Shield makes all of the connections you'll need
between Arduino and XBee. If you have the shield make
sure the SWITCH IS IN THE "DLINE" POSITION. That will connect
the XBee's DOUT and DIN pins to Arduino pins 2 and 3.
*****************************************************************/
// We'll use SoftwareSerial to communicate with the XBee:
#include <SoftwareSerial.h>
// XBee's DOUT (TX) is connected to pin 2 (Arduino's Software RX)
// XBee's DIN (RX) is connected to pin 3 (Arduino's Software TX)
SoftwareSerial XBee(2, 3); // RX, TX
void setup()
{
// Set up both ports at 9600 baud. This value is most important
// for the XBee. Make sure the baud rate matches the config
// setting of your XBee.
XBee.begin(9600);
Serial.begin(9600);
}
void loop()
{
if (Serial.available())
{ // If data comes in from serial monitor, send it out to XBee
XBee.write(Serial.read());
}
if (XBee.available())
{ // If data comes in from XBee, send it out to serial monitor
Serial.write(XBee.read());
}
}