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Chapter 7: Ser v o Motors and Extending the Ser v o Control System 181
Figure 7.19 DX-8 Aux-1 (Flap) switch.
gate signals from the BOE, and eventually, from the QuickStart board. As I mentioned earlier
in the book, the BOE would be my development platform. I would use it to eventually port
all the control programs over to the QuickStart once I have confirmed that everything
functions as it should. Figure 7.20 is a picture of the QuickStart board that will be used as the
onboard lighting controller.
The following is a Spin program that I wrote to monitor the pulse width being received
on the Aux-1 channel, and then, to modify the LED lighting scheme in accordance with the
requirements. The transistor-driver circuit is contained in the header documentation; however,
Figure 7.20 Parallax QuickStart board.
