Abstract
Sensor networks are no longer expensive industrial constructs. You can build a simple sensor network from easily procured, low-cost hardware. All you need are some simple sensors and a microcontroller or computer with input/output capabilities. Yes, your Arduino and Raspberry Pi are ideal platforms for building sensor networks. If you’ve worked with either platform and have ever wanted to monitor your garden pond, track movement in your home or office, monitor the temperature in your house, monitor the environment, or even build a low-cost security system, you’re halfway there!
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Notes
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It may be hard to imagine a 46,000-pound machine that resembles a medieval torture device being driven by a computer, but it’s true. Some of the most expensive combines have more sophisticated technology than your favorite sports sedan.
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Electronic filters are an absolute necessity for those of us with allergies living in areas with a high concentration of pollutants, both natural and manmade.
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Each pond I’ve built has eventually given birth to frogs. Where do they all come from?
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There is a special form of wired network that uses optical signals. The cables are made from glass fibers that use light waves instead of electrical signals.
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Shocking, isn’t it?
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Using the serial monitor feature of the Arduino IDE. See Chapter 3 for details on how to use the serial monitor.
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This depends on the width of the parallel buffer. An 8-bit buffer can communicate 1 byte at a time, a 16-bit buffer can communicate 2 bytes at a time, and so on.
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I for one can never tell which detector is beeping, so I replace the batteries in all of them.
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Accuracy may depend on environmental variables such as elevation, temperature, and so on.
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© 2013 Charles Bell
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Bell, C. (2013). Introduction to Sensor Networks. In: Beginning Sensor Networks with Arduino and Raspberry Pi. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-5825-4_1
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DOI: https://doi.org/10.1007/978-1-4302-5825-4_1
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4302-5824-7
Online ISBN: 978-1-4302-5825-4
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