The Arduino Nano XBee Board is an add-on module that allows you to interface with XBee wireless module using the Arduino Nano USB Microcontroller v3. You can use it for wireless communication and wireless firmware update. It includes breadboard friendliness for quick prototyping. It contains all of the circuitries you need to implement wireless communication using the popular XBee module. You can also update firmware on the Arduino Nano OTA. It works with XBee series 1 and Series 2.5, both Standard and Pro version. The serial UART pins on XBee (DIN and DOUT) connect to D1/TX and D0/RX on the Arduino Nano respectively. This board also features many status LEDs for ease of troubleshooting.