Summary
In this chapter, you have seen that an XBee module can be used by itself, without an Arduino connected. You can remotely change its configuration, read the digital and analog signals on its pins, and control the output voltages.
For simple applications, you can now include a standalone XBee module in your network thereby saving some costs, allowing for a smaller device, and saving power.
In the next chapter, you will look at making your modules battery-powered and exploring the techniques to radically reduce their power usage.