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From basics to flows for sensors, automation, motors, MQTT, and cloud services This book is a learning guide and a reference. Use it to learn Node-RED, Raspberry Pi Pico W, and MicroPython, and add these state-of-the-art tools to your technology toolkit. It will introduce you to virtual machines, Docker, and MySQL in support of IoT projects based on Node-RED and the Raspberry Pi Pico W. This book combines several elements into a platform that powers the development of modern Internet of Things applications. These elements are a flow-based server, a WiFi-enabled microcontroller, a high-level programming language, and a deployment technology. Combining these elements gives you the tools you need to create automation systems at any scale. From home automation to industrial automation, this book will help you get started. Node-RED is an open-source flow-based development tool that makes it easy to wire together devices, APIs, and online services. Drag and drop nodes to create a flowchart that turns on your lights at sunset or sends you an email when a sensor detects movement. Raspberry Pi Pico W is a version of the Raspberry Pi Pico with added 802.11n Wi-Fi capability. It is an ideal device for physical computing tasks and an excellent match to the Node-RED. Quick book facts Project-based learning approach. Assumes no prior knowledge of flow-based programming tools. Learn to use essential infrastructure tools in your projects, such as virtual machines, Docker, MySQL and useful web APIs such as Google Sheets and OpenWeatherMap. Dozens of mini-projects supported by photographs, wiring schematics, and source code. Get these from the book GitHub repository. Step-by-step instructions on everything. All experiments are based on the Raspberry Pi Pico W. A Wi-Fi network is required for all projects. Hardware (including the Raspberry Pi Pico W) is available as a kit. Downloads GitHub

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This book details the use of the Arduino Uno and the Raspberry Pi 4 in practical CAN bus based projects. Using either the Arduino Uno or the Raspberry Pi with off-the-shelf CAN bus interface modules considerably ease developing, debugging, and testing CAN bus based projects. This book is written for students, practicing engineers, enthusiasts, and for everyone else wanting to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C and Python programming languages and programming the Arduino Uno using its IDE and Raspberry Pi will be useful, especially if the reader intends to develop microcontroller-based projects using the CAN bus. The book should be a useful source of reference material for anyone interested in finding answers to questions such as: What bus systems are available for the automotive industry? What are the principles of the CAN bus? How can I create a physical CAN bus? What types of frames (or data packets) are available in a CAN bus system? How can errors be detected in a CAN bus system and how dependable is a CAN bus system? What types of CAN bus controllers exist? How do I use the MCP2515 CAN bus controller? How do I create 2-node Arduino Uno-based CAN bus projects? How do I create 3-node Arduino Uno-based CAN bus projects? How do I set the acceptance masks and acceptance filters? How do I analyze data on the CAN bus? How do I create 2-node Raspberry Pi-based CAN bus projects? How do I create 3-node Raspberry Pi-based CAN bus projects?

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Vollständiger ESP32-Mikrocontroller-Lernkurs mit speziell entwickelter MCU-Erweiterungsplatine, praxisorientierten Projekten und einem umfassenden Online-Guide – ideal, um Hardware, Programmierung und Konnektivität Schritt für Schritt zu erlernen. Praktische Einführung in eingebettete Systeme mit dem ESP32 Dieser Kurs richtet sich an Einsteiger in die Welt der eingebetteten Systeme, die einen strukturierten, beispielorientierten Einstieg suchen. Falls Sie sich bereits mit allgemeiner Elektronik oder Arduino-basierten Materialien beschäftigt haben, diese aber als zu allgemein oder zu wenig praxisnah empfunden haben, bietet dieser Kurs eine fokussiertere Alternative. Mit dem "ESP32 by Example Kit" (EEK) – einem kompakten und kostengünstigen Komponentensatz mit LEDs, Sensoren, einem OLED-Display und einem Bewegungsprozessor – arbeiten Sie während des gesamten Kurses mit einem einheitlichen Hardware-Setup. Nach dem Zusammenbau bleibt das EEK weitgehend unverändert, sodass Sie sich ganz auf das Lernen und Experimentieren konzentrieren können, ohne ständig neu konfigurieren zu müssen. Themen: Verstehen und Programmieren des ESP32-Mikrocontrollers Programmieren und Ausführen von Code mit der Arduino IIDE Erkunden von cyber-physischen Systemen, abschließend zur grundlegenden Drohnensteuerung Vorkenntnisse in Arduino oder Embedded-Entwicklung sind nicht erforderlich. Jeder Abschnitt enthält praktische Beispiele und Miniprojekte, die die wichtigsten Konzepte festigen und zu einer tiefergehenden Auseinandersetzung anregen. Am Ende des Kurses können Sie die Beispiele des Buches nicht nur nachvollziehen, sondern auch mit eigenen Ideen und Anwendungen erweitern. Ob Sie sich für Embedded-Programmierung, interaktive Systeme oder die Grundlagen der Drohnensteuerung interessieren – dieser Kurs bietet einen klaren und praxisorientierten Einstieg. Was Sie lernen werden Eingebettete Programmierung mit dem ESP32 mithilfe der Arduino IDE Echtzeit-Sensoreingabe und -steuerung über Tasten, LEDs und Displays Gestenbasierte Interaktion mit dem Bewegungssensor MPU6050 Integration von Bluetooth-Gamepads und Drohnensteuerungssimulation WLAN- und UDP-Netzwerke, lokale Webserver und NTP MQTT-Kommunikation mit Cloud-Plattformen wie AWS und Arduino IoT Aufbau und Bereitstellung voll funktionsfähiger IoT-Systeme Perfekt für Studierende und Autodidakten, die sich mit eingebetteten Systemen beschäftigen Bastler und IoT-Begeisterte, die ihre Hardwarekenntnisse verbessern möchten Lehrkräfte und Dozenten, die nach sofort einsetzbarem Unterrichtsmaterial suchen Entwickler, die über die Grundlagen von Raspberry Pi oder Arduino hinausgehen möchten Support, wenn Sie ihn brauchen Zugang zu Kursleitern über die Elektor Academy Hilfreiche Community-Foren und wichtige Dokumentation Was ist in der Box (Kurs)? Neues 384-seitiges Buch: "ESP32 by Example" (Wert: 45 €) Elektor ESP32 by Example Kit (EEK): Mikrocontroller-Erweiterungsplatine mit 6 LEDs und 6 Tasten + OLED-Display, MPU6050 3-Achsen Beschleunigungsmesser und Gyroskop-Modul (Wert: 40 €) Adafruit HUZZAH32 – ESP32 Feather MCU Board (Wert: 30 €) ESP32 Cheap Yellow Display Board (Wert: 25 €) DHT11 Feuchtigkeitssensor & Temperatursensor Breadboard Jumperkabel USB-C-Kabel Zugang zum vollständigen Kurs auf der Elektor Academy Pro Lernplattform Lehrvideos Herunterladbare Arduino-Projektdateien für jedes Modul Lernmaterial (dieser Box) ▶  Klicken Sie hier zum Öffnen Module 1 – Getting Started with the ESP32 & EEK Module 2 – Digital Output – LEDs and GPIO Module 3 – Switches and Input Handling Module 4 – EEK and PWM Module 5 – OLED and Display Output Module 6 – Motion Sensing with the MPU6050 Module 7 – Capstone Project (EEK in Action) Module 8 – WiFi and Web Control with ESP32 Module 9 – Cloud Concepts using EEK Module 10 – Hands-on: Arduino IoT Cloud and EEK Module 11 – BlueTooth and EEK GamePad Integration Module 12 – Why Drones? Module 13 – Drone Simulator Concepts Module 14 – Simple Drone Flight Control Module 15 – Real-Time Drone Flight Control Module 16 – Drone Control Mini-Projects Module 17 – Middleware and Python Scripting Module 18 – Python Applications for Drone Control Module 19 – Capstone EEK Control Project and Presentation Über den Autor Dr. Jim Solderitsch ist Dozent, Softwarearchitekt, Systementwickler und Cybersicherheitsforscher mit Schwerpunkt auf cyber-physischen Systemen. Derzeit ist er als Lehrbeauftragter für Informatik an der Villanova University in Pennsylvania tätig. Was ist Elektor Academy Pro? Elektor Academy Pro bietet maßgeschneiderte Lernlösungen für Fachkräfte, Ingenieurteams und technische Experten in der Elektronik- und Embedded-Systems-Branche. Sie unterstützt Einzelpersonen und Organisationen dabei, ihr praktisches Know-how zu vertiefen, ihre Skills gezielt auszubauen und dank hochwertiger Inhalte und praxisnaher Tools stets einen Schritt voraus zu sein. Von realen Projekten und spezialisierten Kursen bis hin zu fundierten technischen Insights – Elektor versetzt Ingenieure in die Lage, aktuelle Herausforderungen der Branche erfolgreich zu meistern. Unser Bildungsportfolio umfasst Academy-Bücher, Pro-Boxen, Webinare, Konferenzen und B2B-Fachmagazine – alles mit Blick auf praxisnahe Weiterbildung und berufliches Wachstum. Ob Ingenieur, F&E-Spezialist oder technischer Entscheider: Elektor Academy Pro schlägt die Brücke zwischen Theorie und Praxis – und hilft Ihnen, neue Technologien zu beherrschen und Innovationen in Ihrem Unternehmen gezielt voranzutreiben.

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Program and Build Raspberry Pi 5 Based Ham Station Utilities with the RTL-SDR The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their very low cost and rich features. A basic system may consist of a USB based RTL-SDR device (dongle) with a suitable antenna, a Raspberry Pi 5 computer, a USB based external audio input-output adapter, and software installed on the Raspberry Pi 5 computer. With such a modest setup, it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is aimed at amateur radio enthusiasts and electronic engineering students, as well as at anyone interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is suitable for both beginners through experienced readers. Some knowledge of the Python programming language is required to understand and eventually modify the projects given in the book. A block diagram, a circuit diagram, and a complete Python program listing is given for each project, alongside a comprehensive description. The following popular RTL-SDR programs are discussed in detail, aided by step-by-step installation guides for practical use on a Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X The application of the Python programming language on the latest Raspberry Pi 5 platform precludes the use of the programs in the book from working on older versions of Raspberry Pi computers.

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ModbusRTU and ModbusTCP examples with the Arduino Uno and ESP8266 Introduction to PLC programming with OpenPLC, the first fully open source Programmable Logic Controller on the Raspberry Pi, and Modbus examples with Arduino Uno and ESP8266 PLC programming is very common in industry and home automation. This book describes how the Raspberry Pi 4 can be used as a Programmable Logic Controller. Before taking you into the programming, the author starts with the software installation on the Raspberry Pi and the PLC editor on the PC, followed by a description of the hardware. You'll then find interesting examples in the different programming languages complying with the IEC 61131-3 standard. This manual also explains in detail how to use the PLC editor and how to load and execute the programs on the Raspberry Pi. All IEC languages are explained with examples, starting with LD (Ladder Diagram) over ST (Structured Control Language) to SFC (Special Function Chart). All examples can be downloaded from the author's website. Networking gets thorough attention too. The Arduino Uno and the ESP8266 are programmed as ModbusRTU or ModbusTCP modules to get access to external peripherals, reading sensors and switching electrical loads. I/O circuits complying with the 24 V industry standard may also be of interest for the reader. The book ends with an overview of commands for ST and LD. After reading the book, the reader will be able to create his own controllers with the Raspberry Pi.

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Met de Raspberry Pi heeft u voor slechts een paar tientjes een complete computer in handen, waar op eenvoudige wijze allerlei elektronica aangesloten kan worden. In deze 2e herziene en uitgebreide versie gaan we in op een van de sterke kanten van de Raspberry Pi: de combinatie van programmeren en elektronica. Na een korte introductie van de Raspberry Pi wordt de benodigde software geïnstalleerd. Op de SD-kaart die u bij dit boek kunt aanschaffen, is die allemaal al aanwezig voor de Raspberry Pi. Aan de (optionele) Windows PC kant gebeurt dit met gratis software die u kunt downloaden. Daarna volgt een beknopte inleiding in het besturingssysteem Linux en gaan we programmeren in Bash, Python en JavaScript. De nadruk ligt hierbij op Python, maar in alle gevallen houden we het kort. We bespreken net voldoende zodat u de projecten kunt begrijpen en aan uw wensen aanpassen, en gaan dan aan de slag met leuke projecten. Maar liefst 45 spannende en interessante projecten worden in detail besproken en uitgelegd. Van wisselknipperlicht, aansluiten van een elektromotor, het verwerken en maken van analoge signalen tot lichtmeter en temperatuurregeling. Maar ook gecompliceerdere projecten zoals een motorsnelheidsregeling, webserver met CGI, client-server applicaties en Xwindows programma‘s. U kunt dit boek gebruiken als projecten boek en de projecten nabouwen en in de praktijk inzetten. Door de duidelijke uitleg, schema‘s en foto‘s van de opstellingen op een steekbord wordt het nabouwen een erg leuke bezigheid. RPi Alle software voor de RPi is voorgeïnstalleerd op een SD-kaart die u bij dit boek kunt aanschaffen. Dat wil zeggen dat alle software en drivers voor SSH, SPI, I²C, GPIO, PWM, muziek, Python Ontwikkelversie, wxPython, IdleX en de seriële verbinding gegarandeerd werken. Tevens staan alle broncodes van de projecten uitdit boek op deze kaart. Windows-PC In het gratis download-pakket dat bij dit boek hoort, vindt u de software die in dit boek gebruikt wordt op de Windows-PC handig bij elkaar in een enkel ZIP-bestand. Alle software is gratis. Tevens bevat het pakket een filmpje van de Nutteloze Doos (Useless Machine) van project 13.4. Software download-pakket WinOscillo Putty Xming WinSCP DiskImager Notepad2 IdleX Useless Box film

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40+ Projects using Arduino, Raspberry Pi and ESP32 This book is about developing projects using the sensor-modules with Arduino Uno, Raspberry Pi and ESP32 microcontroller development systems. More than 40 different sensors types are used in various projects in the book. The book explains in simple terms and with tested and fully working example projects, how to use the sensors in your project. The projects provided in the book include the following: Changing LED brightness RGB LEDs Creating rainbow colours Magic wand Silent door alarm Dark sensor with relay Secret key Magic light cup Decoding commercial IR handsets Controlling TV channels with IT sensors Target shooting detector Shock time duration measurement Ultrasonic reverse parking Toggle lights by clapping hands Playing melody Measuring magnetic field strength Joystick musical instrument Line tracking Displaying temperature Temperature ON/OFF control Mobile phone-based Wi-Fi projects Mobile phone-based Bluetooth projects Sending data to the Cloud The projects have been organized with increasing levels of difficulty. Readers are encouraged to tackle the projects in the order given. A specially prepared sensor kit is available from Elektor. With the help of this hardware, it should be easy and fun to build the projects in this book.

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The Raspberry Pi is a $35 credit-card sized computer with many applications, such as in desktop computing, audio and video playback, and as a controller in many industrial, commercial and domestic applications. This book is about the Raspberry Pi computer and its use in control applications. The book explains in simple terms, with examples, how to configure the RPi, how to install and use the Linux operating system, how to write programs using the Python programming language and how to develop hardware based projects. The book starts with an introduction to the Raspberry Pi computer and covers the topics of purchasing all the necessary equipment and installing/using the Linux operating system in command mode. Use of the user-friendly graphical desktop operating environment is explained using example applications. The RPi network interface is explained in simple steps and demonstrates how the computer can be accessed remotely from a desktop or a laptop computer. The remaining parts of the book cover the Python programming language, hardware development tools, hardware interface details, and RPi based hardware projects. All the 23 projects given in the book have been tested and are working. The following headings are given for each project: Project title Project description Project block diagram Project circuit diagram Project program description using the Program Description Language (PDL) Complete program listing Description of the program The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and hobbyists.

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The XIAO ESP32-C3 board combines the ultra-compact form factor of the XIAO series with the full capabilities of the ESP32-C3 chip, including integrated Wi-Fi and Bluetooth 5.0. This book is a comprehensive, hands-on guide to getting the most out of this powerful yet affordable development board. The author takes readers from the fundamentals to advanced projects. Starting with LED blinking and dimming, the book progresses to ADC and PWM for precise sensor interfacing and PWM-controlled lighting effects before moving on to building practical, real-world applications, including: A Wi-Fi weather station with an OLED display and real-time online weather data An ultrasonic parking assistant with audible feedback A refrigerator monitoring probe with climate sensing and Deep Sleep for years of battery operation A retro Pong game controlled by a touch-free sensor A microphone-based party app that responds to claps And much more: lighting control, reaction-time measurement, mains frequency analysis, soil moisture sensing, ambient LED lighting, and 7-segment displays

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AI Projects for the Raspberry Pi with the AI HAT+ Edge AI is transforming everyday devices by putting intelligence where it matters most: directly inside the hardware. With on-device inference, a camera can recognize a visitor instantly, a phone can translate speech without streaming audio to the cloud, and a wearable can detect anomalies in real time—fast, private, and reliable even when the network disappears. This book is your practical guide to building exactly those kinds of systems with the Raspberry Pi AI HAT+ and the Hailo-8L accelerator. You’ll start with clear foundations: core AI and machine-learning concepts, how neural networks work, and what truly distinguishes Edge AI from cloud AI—plus an honest look at ethical considerations and future impacts. Then it’s straight to hands-on physical computing. Step by step, you’ll set up Raspberry Pi OS, power and cooling, and develop in Python using the Thonny IDE. You’ll learn GPIO basics with lights and servos, mount the AI HAT+ hardware, install and verify the Hailo software stack, and connect the right camera—official modules or USB webcams, even multiple cameras. From your first pipeline to real projects, you’ll run person detection, pose estimation, segmentation, and depth estimation, then level up with YOLO object detection: smart alerts, guest counters, and custom extensions. You’ll even connect vision to motion by combining gesture recognition with servo-driven mechanisms, including a robotic arm. With troubleshooting tips, hardware essentials, and a practical Python refresher, this book turns Edge AI from buzzword into buildable reality.

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Ready to explore the world around you? By attaching the Sense HAT to your Raspberry Pi, you can quickly and easily develop a variety of creative applications, useful experiments, and exciting games. The Sense HAT contains several helpful environmental sensors: temperature, humidity, pressure, accelerometer, magnetometer, and gyroscope. Additionally, an 8x8 LED matrix is provided with RGB LEDs, which can be used to display multi-color scrolling or fixed information, such as the sensor data. Use the small onboard joystick for games or applications that require user input. In Innovate with Sense HAT for Raspberry Pi, Dr. Dogan Ibrahim explains how to use the Sense HAT in Raspberry Pi Zero W-based projects. Using simple terms, he details how to incorporate the Sense HAT board in interesting visual and sensor-based projects. You can complete all the projects with other Raspberry Pi models without any modifications. Exploring with Sense HAT for Raspberry Pi includes projects featuring external hardware components in addition to the Sense HAT board. You will learn to connect the Sense HAT board to the Raspberry Pi using jumper wires so that some of the GPIO ports are free to be interfaced to external components, such as to buzzers, relays, LEDs, LCDs, motors, and other sensors. The book includes full program listings and detailed project descriptions. Complete circuit diagrams of the projects using external components are given where necessary. All the projects were developed using the latest version of the Python 3 programming language. You can easily download projects from the book’s web page. Let’s start exploring with Sense HAT.

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A Practical Guide to AI, Python, and Hardware Projects Welcome to your BeagleY-AI journey! This compact, powerful, and affordable single-board computer is perfect for developers and hobbyists. With its dedicated 4 TOPS AI co-processor and a 1.4 GHz Quad-core Cortex-A53 CPU, the BeagleY-AI is equipped to handle both AI applications and real-time I/O tasks. Powered by the Texas Instruments AM67A processor, it offers DSPs, a 3D graphics unit, and video accelerators. Inside this handbook, you‘ll find over 50 hands-on projects that cover a wide range of topics—from basic circuits with LEDs and sensors to an AI-driven project. Each project is written in Python 3 and includes detailed explanations and full program listings to guide you. Whether you‘re a beginner or more advanced, you can follow these projects as they are or modify them to fit your own creative ideas. Here’s a glimpse of some exciting projects included in this handbook: Morse Code Exerciser with LED or BuzzerType a message and watch it come to life as an LED or buzzer translates your text into Morse code. Ultrasonic Distance MeasurementUse an ultrasonic sensor to measure distances and display the result in real time. Environmental Data Display & VisualizationCollect temperature, pressure, and humidity readings from the BME280 sensor, and display or plot them on a graphical interface. SPI – Voltmeter with ADCLearn how to measure voltage using an external ADC and display the results on your BeagleY-AI. GPS Coordinates DisplayTrack your location with a GPS module and view geographic coordinates on your screen. BeagleY-AI and Raspberry Pi 4 CommunicationDiscover how to make your BeagleY-AI and Raspberry Pi communicate over a serial link and exchange data. AI-Driven Object Detection with TensorFlow LiteSet up and run an object detection model using TensorFlow Lite on the BeagleY-AI platform, with complete hardware and software details provided.

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