- SPI (Serial Peripheral Interface Circuit). LED strips and matrices are common examples.
- You can refer to the device's official datasheet, or use the command-line tool i2cdetect, which lists the addresses of all connected I2C devices.
- Make sure you are using the correct pin numbering scheme expected by the library, and/or make sure you have configured the library to use the scheme you prefer if the library provides this option.
- The driver library is not built upon PiGPIO and therefore does not support remote GPIO.
- False. All GPIO pins are rated for 3.3 volts. Connecting any voltage higher than this can damage your Raspberry Pi.
- The library you are using to drive the servo is most likely using software PWM to generate the PWM signals for the servo. Software PWM signals can be distorted when the Raspberry Pi's CPU gets busy.
- If you are powering the servos from the 5-volt pin of your Raspberry Pi, it'll indicate that you are drawing too much power, effectively robbing...
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Practical Python Programming for IoT
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Practical Python Programming for IoT
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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)
Preface
Section 1: Programming with Python and the Raspberry Pi
Free Chapter
Setting Up your Development Environment
Getting Started with Python and IoT
Networking with RESTful APIs and Web Sockets Using Flask
Networking with MQTT, Python, and the Mosquitto MQTT Broker
Section 2: Practical Electronics for Interacting with the Physical World
Connecting Your Raspberry Pi to the Physical World
Electronics 101 for the Software Engineer
Section 3: IoT Playground - Practical Examples to Interact with the Physical World
Turning Things On and Off
Lights, Indicators, and Displaying Information
Measuring Temperature, Humidity, and Light Levels
Movement with Servos, Motors, and Steppers
Measuring Distance and Detecting Movement
Advanced IoT Programming Concepts - Threads, AsyncIO, and Event Loops
IoT Visualization and Automation Platforms
Tying It All Together - An IoT Christmas Tree
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