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Beginning Sensor Networks with Arduino and Raspberry Pi by Charles Bell

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CHAPTER 3

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Arduino-Based Sensor Nodes

One of the greatest advances in physical computing has been the proliferation of microcontrollers. A microcontroller consists of a processor with a small instruction set,1 memory, and programmable input/output circuitry contained on a single chip. Microcontrollers are usually packaged with supporting circuitry and connections on a small printed circuit board.

Microcontrollers are used in embedded systems where small software programs can be tailored to control and monitor hardware devices, making them ideal for use in sensor networks. One of the most successful and most popular microcontrollers is the Arduino ...

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