Reference for XBee

The price of XBee Explorer Dongle is too expensive. $24

If you have a FTDI Basic Breakout($14) you can use it as a replacement. You can save $10.

To connect FTDI and XBee for PuTTY.

Connect

GND-GND

3.3V-VCC

TXO-DIN

TRI-DOUT

In the PuTTY terminal

type +++ without ENTER

XBee will return

OK