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

Running and testing the Python server

In this section, we will run and interact with a Python server program that will let us control our LED from a web browser by copying and pasting links. Once we have used the program to control our LED, we'll then delve into the mechanics of the code and how it works in the next section.

Here are the steps to follow:

  1. Run the chapter02/dweet_led.py program. You should see output similar to the following:
(venv) $ python dweet_led.py
INFO:main:Created new thing name a8e38712 # (1)
LED Control URLs - Try them in your web browser:
On : https://dweet.io/dweet/for/a8e38712?state=on # (2)
Off : https://dweet.io/dweet/for/a8e38712?state=off
Blink : https://dweet.io/dweet/for/a8e38712?state=blink

INFO:main:LED off
Waiting for dweets. Press Control+C to exit.

On line (1), the program has created a unique name for our thing to use with dweet.io. You'll notice this name in the URLs starting on...