Book Image

Internet of Things with Python

By : Gaston C. Hillar
Book Image

Internet of Things with Python

By: Gaston C. Hillar

Overview of this book

Internet of Things (IoT) is revolutionizing the way devices/things interact with each other. And when you have IoT with Python on your side, you'll be able to build interactive objects and design them. This book lets you stay at the forefront of cutting-edge research on IoT. We'll open up the possibilities using tools that enable you to interact with the world, such as Intel Galileo Gen 2, sensors, and other hardware. You will learn how to read, write, and convert digital values to generate analog output by programming Pulse Width Modulation (PWM) in Python. You will get familiar with the complex communication system included in the board, so you can interact with any shield, actuator, or sensor. Later on, you will not only see how to work with data received from the sensors, but also perform actions by sending them to a specific shield. You'll be able to connect your IoT device to the entire world, by integrating WiFi, Bluetooth, and Internet settings. With everything ready, you will see how to work in real time on your IoT device using the MQTT protocol in python. By the end of the book, you will be able to develop IoT prototypes with Python, libraries, and tools.
Table of Contents (19 chapters)
Internet of Things with Python
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Controlling digital outputs with the wiring-x86 library


One of the great advantages of working with Python as our programming language to interact with the board is that we have plenty of packages available for Python. We have been using the mraa library to interact with the digital outputs. However, in the previous chapter, we also installed the wiring-x86 library. We can change just a few lines of our object-oriented code to replace the mraa library with the wiring-x86 one to turn on and off the LEDs.

The following lines shows the code for a Board class followed by the new version of the Led class that works with the wiring-x86 library instead of using mraa. The code file for the sample is iot_python_chapter_03_07.py.

from wiringx86 import GPIOGalileoGen2 as GPIO
import time


class Board:
    gpio = GPIO(debug=False)


class Led:
    def __init__(self, pin, position):
        self.pin = pin
        self.position = position
        self.gpio = Board.gpio
        self.gpio.pinMode(pin, self...