Chapter 11. Driving Servo Motors
Servos are an essential part of any small robot, and they’re literally tailor-made for running with logic-level signals. They’re so easy to drive with the AVR that they make the perfect introduction to microcontroller-driven movement. Figure 11-1 is a family portrait of a few servo motors that I had lying around.
In this chapter, we’ll use the servo’s reasonably accurate positioning to make a laser sundial—a laser dot that moves around your room that you can use to tell the time. Along the way, we’ll work on calibrating the AVR’s internal CPU clock ...
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