We kicked off our final chapter with a few words of advice about taking your Pi outside the house. We 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.
We then expanded our outdoor adventure with a GPS receiver and learned how to track the Pi's position in real-time on Google Earth. We 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 time source for the Pi and how all the GPS features we've covered could be started at boot time with a simple script.
We moved over to our smartphone...