February 2009
Beginner
128 pages
2h 45m
English
We define complex sensors as those that produce a type of information that requires a bit more than a digitalRead() or an analogRead() function to be used. These usually are small circuits with a small microcontroller inside that preprocesses the information.
Some of the complex sensors available include ultrasonic rangers, infrared rangers, and accelerometers. You can find examples on how to use them on our website in the "Tutorials" section (www.arduino.cc/en/Tutorial/HomePage).
Tom Igoe's Making Things Talk (O'Reilly) has extensive coverage of these sensors and many other complex sensors.

Figure 5-7. A motor circuit for Arduino
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