Adding GPS to your quadcopter
To complete the tasks in this chapter, you'll need a USB GPS device, one that connects through an interface supported by the GPIO of the Raspberry Pi. The following image is an example of a device that uses the USB interface:
The model number of the device in the preceding image is ND-100S from GlobalSat. It is small, inexpensive, and supports Windows, Mac OS X, and Linux, so your system should be able to interface with it. It is available on Amazon and other online electronics stores, so you should be able to get it almost anywhere. Now that you have your device, let's look at how to connect it to the Raspberry Pi so that you can start taking data.