Mad With Love

Unleash the potential of IoT by creating weather indicators, information displays, alarm systems, and a vision recognition-enabled robot car Key Features Get to grips with the Raspberry Pi ecosystem and its role in IoT development Integrate cutting-edge technologies such as MQTT, LoRa, and ROS for advanced IoT applications Achieve superior control in your robot car with vision recognition and the power of ROS Book Description Renowned for its versatility, affordability, and active community support, Raspberry Pi is at the forefront of IoT development. Unlock the vast potential of Raspberry Pi and Raspberry Pi Pico by learning how to develop practical projects with this updated edition of Internet of Things Programming Projects. Written by an expert programmer who’s worked for some of Canada’s largest companies, this book starts with foundational concepts and practical exercises such as building a basic weather indicator, and gradually progressed toward more complex projects. You’ll get to grips with coding nuances and web service integrations that will help you create a sophisticated IoT robot car equipped with motor control, wireless communication, and sensor amalgamation. The book also explores LoRa technology, a game-changer for long-range, low-power communication in your projects, and delves into robot car development by implementing the Robot Operating System (ROS) for advanced control and coordination. Through clear, step-by-step instructions and insightful explanations, you’ll gain the skills and confidence to develop innovative IoT solutions for real-world applications. By the end of the book, you’ll have mastered the intricacies of IoT programming, from harnessing Raspberry Pi's capabilities to seamlessly integrating external components. What you will learn Integrate web services into projects for real-time data display and analysis Integrate sensors, motors, and displays to build smart IoT devices Build a weather indicator using servo motors and LEDs Create an autonomous IoT robot car capable of performing tasks Develop a home security system with real-time alerts and SMS notifications Explore LoRa and LoRaWAN for remote environmental monitoring Who this book is for This book is for beginners as well as experienced programmers, IoT developers, and Raspberry Pi enthusiasts. With just basic knowledge of IoT, you can dive right in and explore the projects with ease. Internet of Things Programming Projects Contributors About the author About the reviewers Preface Who this book is for What this book covers To get the most out of this book Download the example code files Conventions used Get in touch Share Your Thoughts Download a free PDF copy of this book Part 1: Setting Up the Raspberry Pi for IoT Development 1 Understanding the Raspberry Pi Technical requirements Exploring Raspberry Pi models Exploring alternatives to the Raspberry Pi Looking at the power of HATs Pibrella HAT The Raspberry Pi Sense HAT Investigating operating systems for the Raspberry Pi Using the Raspberry Pi for IoT Utilizing web services for IoT applications Re-introducing T.A.R.A.S. – an IoT-based robotics project Getting started with Raspberry Pi development Raspberry Pi development tools Raspberry Pi and Sense HAT development Summary 2 Harnessing Web Services with the Raspberry Pi Technical requirements Exploring web services Understanding approaches for web services Connecting to a web service with our Raspberry Pi and Sense HAT Creating a scrolling stock ticker application Getting an API key Writing web services client code Enhancing our application Developing weather display applications Getting an API key Creating a scrolling weather information ticker Scrolling weather information on Sense HAT Developing a GO-NO-GO application for decision-making Building other GO-NO-GO applications Summary 3 Building an IoT Weather Indicator Technical requirements Looking into servo motors Connecting the SG90 servo motor to our Raspberry Pi Understanding servo motors Exploring LEDs Connecting an LED to our Raspberry Pi Controlling servo motors and LEDs using Python Setting up our development environment Using GPIO Zero to control a servo Using GPIO Zero to control an LED Building the weather indicator stand Assembling the weather indicator stand Developing code for our application Calibrating the needle Creating the WeatherData class Creating the WeatherDashboard class Adding the updateDashboard() function and main methods Summary 4 Building an IoT Information Display Technical requirements Investigating displays compatible with our Raspberry Pi and exploring screen types Creating an IoT information display Setting up our development environment Creating a WeatherData class Creating a TrafficMap class Adding Dashboard and MyApp classes Running the IoT information display application Summary Part 2: Building an IoT Home Security Dashboard 5 Exploring the GPIO Technical requirements Introducing the GPIO on Raspberry Pi Exploring the Raspberry Pi GPIO pinout diagram Understanding GPIO pin communication protocols Understanding sensors, actuators, and indicators Setting up our development environment Exploring the PIR sensor Building a simple alarm system Summary 6 Building an IoT Alarm Module Technical requirements Investigating MQTT Understanding the publish-subscribe model in MQTT Understanding QoS in MQTT Exploring MQTT fundamentals with the MQTTHQ web client Using a Raspberry Pi Pico W with MQTT Introducing the RP2040 chip Configuring our alarm circuit Setting up our development environment Writing the alarm module client code Building an IoT alarm module case Identifying the parts of the custom case Building the alarm module case Summary 7 Building an IoT Button Technical requirements Introducing IoT buttons Utilizing IoT buttons Exploring various technologies in IoT button development Creating our IoT button using the M5Stack ATOM Matrix Exploring M5Stack devices Flashing the firmware to our ATOM Matrix Configuring the ATOM Matrix for programming Turning our ATOM Matrix into an IoT button Testing our IoT button Improving on our IoT button with the Raspberry Pi Pico W Setting up a CloudAMQP instance Modifying our alarm module code Building our Raspberry Pi Pico W IoT button Installing the components in a custom case Summary 8 Creating an IoT Alarm Dashboard Technical requirements Exploring IoT alarm dashboards Using IoT alarm dashboards for industrial processes Exploring the IoT security alarm dashboard Creating a Raspberry Pi 5 alarm dashboard Modifying the IoT alarm module code Writing the dashboard code Building the external alarm buzzer stand Identifying the parts Building the stand Running our application Summary Part 3: Creating a LoRa-Enabled IoT Monitoring Station 9 Understanding LoRa Technical requirements Exploring LoRa Practical uses for LoRa technology Investigating the radio frequency spectrum Understanding the LoRa SF Using LoRa with the Raspberry Pi Pico and Pico W Building a LoRa sensory transmitter Constructing our circuit Developing the code Installing the components in a custom case Building a LoRa receiver Wiring an LED to the Raspberry Pi Pico W Creating code to receive LoRa messages Testing our application Summary 10 Integrating LoRa with the Internet Technical requirements Connecting our LoRa receiver to the internet Installing the CircuitPython library for MQTT Creating a CloudAMQP instance for our application Adding MQTT functionality to the LoRa receiver Creating a new weather indicator Building the split stand Building the faceplate Configuring the RGB LED indicator Configuring the servo motor Programming our weather indicator Exploring other IoT communication protocols Summary Part 4: Building an IoT Robot Car 11 Introducing ROS Technical requirements Exploring ROS Reviewing our TurtleSim controller ROS application Understanding ROS node communication Investigating ROS project structure and organization Aligning ROS distributions with Ubuntu LTS versions Installing Ubuntu and ROS onto our Raspberry Pi Installing Ubuntu on our Raspberry Pi 4 Adding ROS to our Ubuntu installation Testing our ROS installation Running and controlling a simulated robot Launching and testing TurtleSim Creating an ROS workspace and package Modifying the generated Python code Updating package.xml Compiling and running our code Controlling our robot with an MQTT message Summary 12 Creating an IoT Joystick Technical requirements Understanding our IoT joystick application Wiring up our circuit Developing the code for our IoT joystick Setting up our Raspberry Pi Pico WH Creating a Joystick class Sending MQTT messages from our IoT joystick Creating a custom ROS node for our application Creating our custom robot_control node Controlling a ROS TurtleSim robot using our IoT joystick Constructing the IoT joystick case Summary 13 Introducing Advanced Robotic Eyes for Security (A.R.E.S.) Technical requirements Exploring our A.R.E.S. application Constructing A.R.E.S. Identifying the 3D-printed frame parts Identifying the components used to create A.R.E.S. Building A.R.E.S. Wiring up A.R.E.S. Software setup and configuration Installing Ubuntu onto our Raspberry Pi 3B+ Running the installation script Creating alarm code for the Pico H Testing and controlling the motors Testing communication between Pi and Pico Testing the ToF sensor Streaming video from A.R.E.S. Programming A.R.E.S. with ROS Summary 14 Adding Computer Vision to A.R.E.S. Technical requirements Exploring computer vision Introducing OpenCV Understanding YOLO and neural networks Exploring object detection Adding computer vision to A.R.E.S. Creating the DogTracker class Building a smart video streamer Sending out a text alert Setting up our Twilio account Adding text message functionality to A.R.E.S. Summary Index Why subscribe? Other Books You May Enjoy Packt is searching for authors like you Share Your Thoughts Download a free PDF copy of this book Apply modern architectural patterns and techniques to achieve scalable, resilient, and secure intelligent IoT solutions built for manufacturing, consumer, agriculture, smart cities, and other domainsKey FeaturesGet empowered to quickly develop IoT solutions using listed patterns and related guidanceLearn the applications of IoT architectural patterns in various domains through real-world case studiesExplore sensor and actuator selection, analytics, security, and emerging tools for architecting IoT systemsPurchase of the print or Kindle book includes a free PDF eBookBook DescriptionAs the Internet of Things (IoT) expands and moves to new domains, architectural patterns need to enable faster digital transformation and more uniform development. Through numerous use cases and examples, this book helps you conceptualize and implement IoT architectural patterns and use them in diverse contexts in real-world scenarios. The book begins by introducing you to a variety of IoT architectural patterns and then helps you understand how they are used in domains such as retail, smart manufacturing, consumer, smart cities, and smart agriculture. You'll also find out how cross-cutting concerns such as security require special considerations in the IoT context. As you advance, you'll discover all the nuances that are inherent in each layer of IoT reference architecture, including considerations related to analytics for edge/constrained devices, data visualizations, and so on. In the concluding chapters, you'll explore emerging technologies such as blockchain, 3D printing, 5G, generative AI, quantum computing, and large language models (LLMs) that enhance IoT capabilities to realize broader applications. By the end of this book, you'll have learned to architect scalable, secure, and unique IoT solutions in any domain using the power of IoT architectural patterns, and you will be able to avoid the pitfalls that typically derail IoT projects.What you will learnGet to grips with the essentials of different architectural patterns and anti-patternsDiscover the underlying commonalities in diverse IoT applicationsCombine patterns from physical and virtual realms to develop innovative applicationsChoose the right set of sensors and actuators for your solutionExplore analytics-related tools and techniques such as TinyML and sensor fusionOvercome the challenges faced in securing IoT systemsLeverage use cases based on edge computing and emerging technologies such as 3D printing, 5G, generative AI, and LLMsWho this book is forThis book is for IoT systems and solutions architects as well as other IoT practitioners, such as developers and both technical program and pre-sales managers who are interested in understanding how various IoT architectural patterns and techniques can be applied to developing unique and diverse IoT solutions. Prior knowledge of IoT fundamental concepts and its application areas is helpful but not mandatory. Leverage Python and Raspberry Pi to create complex IoT applications capable of creating and detecting movement and measuring distance, light, and a host of other environmental conditionsKey FeaturesLearn the fundamentals of electronics and how to integrate them with a Raspberry PiUnderstand how to build RESTful APIs, WebSocket APIs, and MQTT-based applicationsExplore alternative approaches to structuring IoT applications with PythonBook DescriptionThe 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.What you will learnUnderstand electronic interfacing with Raspberry Pi from scratchGain knowledge of building sensor and actuator electronic circuitsStructure your code in Python using Async IO, pub/sub models, and moreAutomate real-world IoT projects using sensor and actuator integrationIntegrate electronics with ThingSpeak and IFTTT to enable automationBuild and use RESTful APIs, WebSockets, and MQTT with sensors and actuatorsSet up a Raspberry Pi and Python development environment for IoT projectsWho this book is forThis IoT Python book is for application developers, IoT professionals, or anyone interested in building IoT applications using the Python programming language. It will also be particularly helpful for mid to senior-level software engineers who are experienced in desktop, web, and mobile development, but have little to no experience of electronics, physical computing, and IoT. Leverage Python and Raspberry Pi to create complex IoT applications capable of creating and detecting movement and measuring distance, light, and a host of other environmental conditions Key Features Learn the fundamentals of electronics and how to integrate them with a Raspberry Pi Understand how to build RESTful APIs, WebSocket APIs, and MQTT-based applications Explore alternative approaches to structuring IoT applications with Python Book Description 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. What you will learn Understand electronic interfacing with Raspberry Pi from scratch Gain knowledge of building sensor and actuator electronic circuits Structure your code in Python using Async IO, pub/sub models, and more Automate real-world IoT projects using sensor and actuator integration Integrate electronics with ThingSpeak and IFTTT to enable automation Build and use RESTful APIs, WebSockets, and MQTT with sensors and actuators Set up a Raspberry Pi and Python development environment for IoT projects Who this book is for This IoT Python book is for application developers, IoT professionals, or anyone interested in building IoT applications using t.. Unleash the potential of IoT by creating weather indicators, information displays, alarm systems, and a vision recognition-enabled robot carKey FeaturesGet to grips with the Raspberry Pi ecosystem and its role in IoT developmentIntegrate cutting-edge technologies such as MQTT, LoRa, and ROS for advanced IoT applicationsAchieve superior control in your robot car with vision recognition and the power of ROSPurchase of the print or Kindle book includes a free PDF eBookBook DescriptionRenowned for its versatility, affordability, and active community support, Raspberry Pi is at the forefront of IoT development. Unlock the vast potential of Raspberry Pi and Raspberry Pi Pico by learning how to develop practical projects with this updated edition of Internet of Things Programming Projects. Written by an expert programmer who's worked for some of Canada's largest companies, this book starts with foundational concepts and practical exercises such as building a basic weather indicator, and gradually progressed toward more complex projects. You'll get to grips with coding nuances and web service integrations that will help you create a sophisticated IoT robot car equipped with motor control, wireless communication, and sensor amalgamation. The book also explores LoRa technology, a game-changer for long-range, low-power communication in your projects, and delves into robot car development by implementing the Robot Operating System (ROS) for advanced control and coordination. Through clear, step-by-step instructions and insightful explanations, you'll gain the skills and confidence to develop innovative IoT solutions for real-world applications. By the end of the book, you'll have mastered the intricacies of IoT programming, from harnessing Raspberry Pi's capabilities to seamlessly integrating external components.What you will learnIntegrate web services into projects for real-time data display and analysisIntegrate sensors, motors, and displays to build smart IoT devicesBuild a weather indicator using servo motors and LEDsCreate an autonomous IoT robot car capable of performing tasksDevelop a home security system with real-time alerts and SMS notificationsExplore LoRa and LoRaWAN for remote environmental monitoringWho this book is forThis book is for beginners as well as experienced programmers, IoT developers, and Raspberry Pi enthusiasts. With just basic knowledge of IoT, you can dive right in and explore the projects with ease. Practical Python Programming for IoT is a practical guide to building electronic circuits and detailed code examples for advanced IoT applications using a Raspberry Pi and Python. It highlights key concepts such as GPIO interfacing, structuring Python-based IoT applications and alternative methods to control electronics over the internet.