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
