Chapter 7. Retrieving Data from the Real World with Sensors

In this chapter, we will work with a variety of sensors to retrieve data from the real world. We will cover the following topics:

  • Understanding sensors and their connection types
  • Learn the most important things we must consider when choosing sensors
  • Take advantage of the upm library with many different sensors
  • Measure the magnitude and direction of proper acceleration or g-force with an accelerometer
  • Work with a three axis analog accelerometer
  • Use a digital accelerometer that works with the I2C bus
  • Work with the mraa library and the I2C bus to control a digital accelerometer
  • Measure ambient temperature with an analog sensor
  • Use a digital temperature and humidity sensor that works with the I2

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