Data Hacking

Chapter 2 — Building GPS Data Cables and Power Cords
2. Make three small holes down the middle of the plastic (along the long length). These
holes should be made at 3.5 mm, 7 mm, and 10.5 mm from one end, as shown in
Figure 2-17.
3.5 mm
FIGURE 2-17: Add three holes.
3. Insert small lengths of copper wire through these small holes, as shown in Figure 2-18.
FIGURE 2-18: Insert the
wires through the holes.
4. Solder these onto the wires from the 9-pin connector (in this setup, the wire coming out
of the hole closest to the edge of the plastic is pin 4).
5. Holding the connector in front of you and facing away, with the pin nearest the edge to
your left, write “TOP” along the top, as shown in Figure 2-19. This will help you orient
your homemade connector properly when fitting it to the GPS (because a store-bought
connector is keyed to prevent it being fitted the wrong way).
TOP
7 mm
FIGURE 2-19: You want
to know which side is
the top of the connector.
10.5 mm
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