Data Hacking

28 Part I — Hardware Hacks
FIGURE 2-15: Testing before use
Don’t Want to Buy a Connector?
If you don’t want to buy a connector, can’t get one, or are in a hurry, you have another option
open to you if your GPS uses a flat connector, such as the Garmin eTrex.
You can use a piece of plastic (an old credit card is ideal), some small pieces of copper wire, and
a marker pen to fashion a simple connector as follows:
1. Cut the plastic card into a small rectangle exactly 18 mm by 10 mm, as shown in
Figure 2-16 (I’ve used diagrams here to make the process clearer).
18 mm
10 mm
Cut out
FIGURE 2-16: A corner off an old credit card is ideal for this.