Book Image

Practical Python Programming for IoT

By : Gary Smart
Book Image

Practical Python Programming for IoT

By: Gary Smart

Overview of this book

The age of connected devices is here, be it fitness bands or smart homes. It's now more important than ever to understand how hardware components interact with the internet to collect and analyze user data. The Internet of Things (IoT), combined with the popular open source language Python, can be used to build powerful and intelligent IoT systems with intuitive interfaces. This book consists of three parts, with the first focusing on the "Internet" component of IoT. You'll get to grips with end-to-end IoT app development to control an LED over the internet, before learning how to build RESTful APIs, WebSocket APIs, and MQTT services in Python. The second part delves into the fundamentals behind electronics and GPIO interfacing. As you progress to the last part, you'll focus on the "Things" aspect of IoT, where you will learn how to connect and control a range of electronic sensors and actuators using Python. You'll also explore a variety of topics, such as motor control, ultrasonic sensors, and temperature measurement. Finally, you'll get up to speed with advanced IoT programming techniques in Python, integrate with IoT visualization and automation platforms, and build a comprehensive IoT project. By the end of this book, you'll be well-versed with IoT development and have the knowledge you need to build sophisticated IoT systems using Python.
Table of Contents (20 chapters)
1
Section 1: Programming with Python and the Raspberry Pi
6
Section 2: Practical Electronics for Interacting with the Physical World
9
Section 3: IoT Playground - Practical Examples to Interact with the Physical World

Reviewing PiGPIO – a low-level GPIO library

PiGPIO is considered one of the most complete GPIO library options for the Raspberry Pi in terms of features and performance. Its core is implemented in C, and there is an official port available for Python.

Architecturally, PiGPIO is comprised of two parts:

  • The pigpiod daemon service provides socket and pipe access to the underlying PiGPIO C library.
  • The PiGPIO client libraries interact with the pigpiod service using sockets or pipes. It's this design that makes Remote GPIO features over a network possible with PiGPIO.

Here are the key highlights of PiGPIO in a nutshell:

  • Description: An advanced low-level GPIO library
  • Pros: Number of features available
  • Cons: Additional setup necessary; simple documentation assumes knowledge of the underlying concepts
  • Website (Python Port): http://abyz.me.uk/rpi/pigpio/python.html

Before we move on to our next library, I want to draw your attention to a feature...