Chapter 4. Sensors and the Raspberry Pi

Do you wish there was a $35 Linux computer with full HD display?

In this chapter, you will process sensor data using a Raspberry Pi, an inexpensive credit card-sized computer that runs Linux. The Pi is a great board to use as a multimedia server, a safe device to try random acts of programming on, and a fun gizmo to learn the Linux command line with.

Thanks to the Pi’s general-purpose input/output (GPIO) pins, you can also wire up your own custom circuits. Some of the benefits of Raspberry Pi are:

  • Cheap ($35 US)

  • Connects to a full HD display

  • Connects to the Internet

  • Runs Linux, the free operating system

  • Can run full versions of Apache web server and SSH server

Unlike Arduino, the Pi does ...

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