Book Image

BeagleBone Home Automation Blueprints

By : Rodolfo Giometti
Book Image

BeagleBone Home Automation Blueprints

By: Rodolfo Giometti

Overview of this book

BeagleBone is a microboard PC that runs Linux. It can connect to the Internet and can run OSes such as Android and Ubuntu. BeagleBone is used for a variety of different purposes and projects, from simple projects such as building a thermostat to more advanced ones such as home security systems. Packed with real-world examples, this book will provide you with examples of how to connect several sensors and an actuator to the BeagleBone Black. You’ll learn how to give access to them, in order to realize simple-to-complex monitoring and controlling systems that will help you take control of the house. You will also find software examples of implementing web interfaces using the classical PHP/HTML pair with JavaScript, using complex APIs to interact with a Google Docs account, WhatsApp, or Facebook. This guide is an invaluable tutorial if you are planning to use a BeagleBone Black in a home automation project.
Table of Contents (18 chapters)
BeagleBone Home Automation Blueprints
About the Author
About the Reviewers

The basics of functioning

In this project, I'm going to present a simple implementation of a plant monitor with the following two special features:

  • The first feature is the ability to measure and estimate the soil moisture according to a direct measurement of the moisture via a dedicated sensor and through the temperature difference between the external soil temperature and the internal soil temperature in the garden pot where the plant lives. This is because the internal resistance of the moisture sensor may change with the temperature; in fact, when the sun beats down on the soil and the soil warms up, the resistance changes and this effect will produce a false dry read. For this reason, we employ two different temperature probes in order to know if the soil is too hot with respect to the internal soil temperature and then we regulate the moisture level.

  • The second feature is the ability to add a webcam to take several pictures of our lovely plant at well-defined intervals and the possibility...