We kicked off our final chapter with a few words of advice about taking your Pi outside the house. You learned that a battery pack is a good source of power for the Pi and that you can be very creative with your housing as long as the container is resistant to moisture.

As you wouldn't bring a router or access point with you outside, we looked at how to connect a laptop directly to the Pi using either a wired connection with static IP addressing or an ad hoc Wi-Fi network. Should you need to connect more than two computers, you also have the option of turning the Pi into a Wi-Fi access point with optional Internet sharing.

We then expanded our outdoor adventure with a GPS receiver and saw how to track the Pi's position in real time on Google Earth. You also learned how to log waypoints along the route so that the journey can be retraced on Google Earth at a later time and how to massage GPS data collected from Kismet into an access point map. Finally, we explored the GPS as an alternative...