Page 247 - Build Your Own Quadcopter_ Power Up Your Designs with the Parallax Elev-8

226 Bu il d Y o ur O w n Q u a d c o p t e r

Figure 8.29 Front of the XBee transmitter node.

increase the overall rigidity of the assembly. The GPS module is mounted to the back of the
vertical breadboard, as you can see in Figure 8.30.
The GPS is held in place by the double-sided tape that is normally attached to the bottom
of new breadboards. You should be aware that a vertically mounted GPS module with an
internal antenna is not as sensitive to satellite signals as a horizontally mounted one is. You
might want to initially hold the quadcopter on its side with the flat side of the GPS antenna
pointed to the sky until a signal is acquired. Once the receiver locks on to the satellite signal,

Figure 8.30 The back of the XBee transmitter node.