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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. OBD2 Sensor DashboardOld Dials Sparked a Quest for Real Data OBD2: Add a Rev Counter and Gear Shift Indicator to Your CarRetro, but Super Useful LiDAR and Vision Sensors for Robotics Sensor+Test 2025 and PCIM 2025 Contact-Free E-Field Measurements (1)A Vibrating Membrane for Assessing DC Voltages or Static Electric Fields Wireless Mailbox NotifierFrom Optical Sensors to Radar, Exploring a Few Options Elektor Mini-WheelieA Self-Balancing Robot Solar CellsPeculiar Parts, the Series Getting Started With a Modern Radar SensorIs an Accurate Measurement on Your Radar? From Life’s ExperiencePaper Factory CybersecurityTough Times for Hackers Siglent Presents Next-Gen Multi-Channel OscilloscopesHigh-Performance Solutions for Modern Power and Embedded Systems Bluetooth 6.0 Brings Enhanced Distance-Ranging ApplicationsNew Version Offers Improved Device Positioning and Location Services Exploring Wireless Communication with BeagleY-AI Err-lectronicsCorrections, Updates, and Readers’ Letters Starting Out in Electronics……Concludes the Topic on Opamps A Powerful AI Code AssistantSpeed Up Your Development with Continue and Visual Studio Code Solar Charge Controller with MPPT (2)The Circuit Ultrasonic Obstacle DetectorA Simple Project to Help Those with Impaired Vision 2025: An AI OdysseyMid-Year Review Raspberry Pi Standalone MIDI Synthesizer (3)Making It Smarter and Adding a User Interface Meshtastic: A Demo ProjectAn Intelligent Mesh of LoRa Radios Analog Audio Frequency GeneratorHigh-Quality Adjustable Frequency Sine Wave Generator

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Knowledge for All! Super Servo TesterTest Up to Four Servos Stand-Alone or In-System Analog Signals and MicrocontrollersADCs, DACs, Current Measurement, and More embedded world 2023 Sub-Nyquist Sampling in PracticeReliably Capturing Higher Frequencies Using Subsampling Android Smartphone Here, ESP32 There?Practical Pproject Using the Android Wi-Fi API Active 1-kHz Filter for Distortion MeasurementBetter Measurements Through Optimization of the Measurement Signal Starting Out in Electronics......Multivibrating Cheerfully Further! Err-lectronicsCorrections, Updates and Readers’ Letters The New I3C ProtocolA Worthy Successor to I²C, or Just More Hot Air? BlueRC: IR Remote Control with Smartphone and ESP32Adaptive and Universal Microcontroller Documentation Explained (Part 2)Registers and Block Diagrams Automating Test and MeasurementProgramming Test Equipment to Do What You Want Infographics: Test and Measurement Overvoltage Protection for Safe OperationTransient Protection for Non-Isolated DC/DC Power Modules Wiha Measuring EquipmentReliable Electrical Testers and Meters Automating Testing and Collaborating on Test Results From Life’s ExperienceHigh-Level Electronics Energy LoggerMeasuring and Recording Power Consumption Assembling the 4tronix M.A.R.S. Rover Kit Parking Disk with E-Paper DisplayAn Innovative Digital Replacement eCO₂ Telegram botAir-Quality Measurement with Telegram Notification Behind the Scenes of DIY High-End AudioElektor’s Ton Giesberts Interviewed on the Fine Art of Analog Design HomeLab ToursWork in Progress... RFID Tag Reading and RFID Door LockSample Projects from the Elektor Arduino Experimenting Bundle Oscilloscope Current Probe for RFRF Current Measurements Made Easy Not for the Faint-Hearted: Robot Arm KitWith Raspberry Pi Pico and MicroPython Generative AIWho Made This Anyway? Hexadoku

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Projet d'E/S pour le PC (E-book)

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Program and build Arduino-based ham station utilities, tools, and instruments In addition to a detailed introduction to the exciting world of the Arduino microcontroller and its many variants, this book introduces you to the shields, modules, and components you can connect to the Arduino. Many of these components are discussed in detail and used in the projects included in this book to help you understand how these components can be incorporated into your own Arduino projects. Emphasis has been placed on designing and creating a wide range of amateur radio-related projects that can easily be built in just a few days. This book is written for ham radio operators and Arduino enthusiasts of all skill levels, and includes discussions about the tools, construction methods, and troubleshooting techniques used in creating amateur radio-related Arduino projects. The book teaches you how to create feature-rich Arduino-based projects, with the goal of helping you to advance beyond this book, and design and build your own ham radio Arduino projects. In addition, this book describes in detail the design, construction, programming, and operation of the following projects: CW Beacon and Foxhunt Keyer Mini Weather Station RF Probe with LED Bar Graph DTMF Tone Encoder DTMF Tone Decoder Waveform Generator Auto Power On/Off Bluetooth CW Keyer Station Power Monitor AC Current Monitor This book assumes a basic knowledge of electronics and circuit construction. Basic knowledge of how to program the Arduino using its IDE will also be beneficial.

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Ce cours complet de programmation de microcontrôleurs basé sur l’Arduino Uno comprend un manuel, un kit de composants, des projets pratiques ainsi qu’un cours en ligne complet avec simulations. Il est idéal pour apprendre pas à pas la programmation des systèmes embarqués avec Arduino grâce à une approche pratique. Une introduction pratique aux systèmes embarqués avec l’Arduino Uno Ce cours s’adresse aux débutants en systèmes embarqués recherchant une approche structurée et basée sur des exemples. Un kit de composants comprenant des LED et des résistances, des interrupteurs, des capteurs et actionneurs, des afficheurs, une breadboard et des fils est inclus. Ceux-ci sont utilisés dans le cours pour illustrer des applications concrètes. Aucune expérience préalable avec Arduino ou le développement embarqué n’est requise. Chaque section propose des exemples pratiques et des mini-projets conçus pour renforcer les concepts clés et encourager l’exploration. À la fin du cours, vous serez capable non seulement de reproduire les exemples, mais aussi de développer vos propres idées et applications. Que allez-vous apprendre ? Programmation de microcontrôleurs avec Arduino en utilisant la carte Uno R3 Utilisation des entrées/sorties numériques, lecture de boutons et encodeurs, commande de LED et relais Lecture des entrées analogiques, tensions et capteurs analogiques Génération de signaux analogiques et PWM Utilisation des communications série comme UART, I²C et SPI pour piloter des afficheurs et lire des capteurs numériques et cartes SD Gestion du temps Utilisation des interruptions Entrées capteurs en temps réel et contrôle via boutons, LED et afficheurs Commande d’actionneurs comme relais et servomoteurs À qui s’adresse ce cours ? Étudiants et autodidactes explorant les systèmes embarqués Makers et passionnés d’IoT souhaitant améliorer leurs compétences en hardware Formateurs et enseignants à la recherche de matériel pédagogique prêt à l’emploi Contenu de la boîte Accès au cours complet sur la plateforme Elektor Academy Pro Carte microcontrôleur Uno R3 + câble USB Livre : Programming Microcontrollers in C/C++ Using Arduino Fichiers de projet téléchargeables pour chaque module Boîte de composants : 2× LED, rouge, 5 mm LED, verte, 5 mm 3× résistance, 470 Ω, 0,25 W LDR Potentiomètre, 10 kΩ, linéaire Bouton-poussoir Module encodeur rotatif Module relais Capteur DHT22 (température & humidité) Afficheur 7 segments 4 digits compatible TM1637 MPU-6050 IMU avec connecteurs Afficheur OLED I²C compatible SSD1306 Adaptateur carte micro SD avec connecteur Buzzer Micro servo SG90 Écran TFT SPI 240×320 compatible ILI9341 20× fils jumper Breadboard Tous les cours de programmation (et différences de contenu) Cours Arduino Raspberry Pi Pico with Arduino C/C++ ESP32 with Arduino C/C++ Raspberry Pi Pico with MicroPython ESP32 with MicroPython Cours en ligne Access to Arduino Course Access to Pico with Arduino C/C++ Course Access to ESP32 with Arduino C/C++ Course Access to Pico with MicroPython Course Access to ESP32 with MicroPython Course Carte Uno R3 Raspberry Pi Pico ESP32 Raspberry Pi Pico ESP32 Livre Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in MicroPython Programming Microcontrollers in MicroPython Kit Boîte de composants (40 pièces) Boîte de composants (40 pièces) Boîte de composants (40 pièces) Boîte de composants (40 pièces) Boîte de composants (40 pièces)

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Réalisés par les créateurs du MagPi, le magazine officiel de Raspberry Pi Démarrez avec le Raspberry Pi 5, le dernier-né et le plus performant de la famille des nano-ordinateurs Raspberry Pi. Apprenez à coder et à réaliser des projets avec cet ordinateur étonnant. Dans ce manuel dédié au Raspberry Pi 5, nous vous proposons aussi de nombreuses idées de projets également réalisables avec le Raspberry Pi 4, le Raspberry Pi Zero 2 W et le Raspberry Pi Pico W. Avec des tutoriels, des projets pratiques, des essais techniques, des guides et bien plus encore, il s’agit de la ressource ultime pour le Raspberry Pi ! 228 pages sur le Raspberry Pi Tout ce que vous devez savoir sur le Raspberry Pi 5 Prise en main de tous les Raspberry Pi Amusez-vous et apprenez l’électronique avec le Pico W Des projets inspirants pour vous donner des idées de réalisations Apprenez μPython en construisant une mini-console Démarrez avec le module caméra Raspberry Pi Intelligence artificielle, codage de son propre agent ChatGP

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Projects with Thonny-IDE, uPyCraft-IDE, and ESP32 The 'Python' programming language has enjoyed an enormous upswing in recent years. Not least, various single-board systems such as the Raspberry Pi have contributed to its popularity. But Python has also found widespread use in other fields, such as artificial intelligence (AI) or machine learning (ML). It is obvious, therefore, to use Python or the 'MicroPython' variant for use in SoCs (Systems on Chip) as well. Powerful controllers such as the ESP32 from Espressif Systems offer excellent performance as well as Wi-Fi and Bluetooth functionality at an affordable price. With these features, the Maker scene has been taken by storm. Compared to other controllers, the ESP32 has a significantly larger flash and SRAM memory, as well as a much higher CPU speed. Due to these characteristics, the chip is not only suitable for classic C applications, but also for programming with MicroPython. This book introduces the application of modern one-chip systems. In addition to the technical background, the focus is on MicroPython itself. After the introduction to the language, the programming skills learned are immediately put into practice. The individual projects are suitable for use in the laboratory as well as for everyday applications. So, in addition to the actual learning effect, the focus is also on the joy of building complete and useful devices. By using laboratory breadboards, circuits of all kinds can be realized with little effort, turning the testing and debugging of the 100% homebrew projects into an instructive pleasure. The various applications, such as weather stations, digital voltmeters, ultrasound range finders, RFID card readers or function generators, make the projects presented ideally suited for practical courses or subject and study work in the natural sciences, or in science and technology classes.

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With Examples for Arduino UNO, Raspberry Pi Pico and ESP32 Programming small electronic systems has never been more accessible. Tasks that once demanded expensive tools, specialized hardware, and deep electrical engineering expertise can now be tackled with low-cost development boards and approachable software. At the centre of this shift is the Arduino environment, which provides a unified and familiar way to program a wide range of microcontroller platforms—from classic AVR boards like the Arduino UNO to modern ARM-based boards such as the Raspberry Pi Pico, and powerful Wi-Fi-enabled devices like the ESP32. This book introduces embedded programming through the core idea that defines all microcontrollers: reading inputs, processing information, and controlling outputs in a predictable loop. The Arduino environment abstracts much of the hardware complexity, allowing you to focus on behaviour rather than implementation details. With just a few lines of code, you can blink LEDs, read sensors, control motors, and communicate with other devices. While the Arduino UNO, Raspberry Pi Pico, and ESP32 boards differ greatly in performance and features, they share the same fundamental building blocks: digital and analog I/O, timers, serial communication, PWM, interrupts, and power management. Learning these concepts within the Arduino framework builds skills that transfer easily across platforms and scale toward more advanced applications. By exploring multiple boards while maintaining a consistent programming approach, this book helps you progress from simple experiments to confidently produce well-structured designs—showing that embedded development can be both practical and enjoyable.

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Practical Low-Cost Methods for Reliable PCB Production This book explains how to carry out reliable SMD assembly using affordable tools and small-scale equipment. It follows the complete workflow step by step, including tool selection, solder paste handling, stencil use, component placement, reflow methods, inspection, and rework. The focus is on bench-level and small-lab production rather than industrial assembly lines. It shows practical methods for building single and double-sided SMD boards with repeatable results. Topics include solder paste and flux, temperature profiles, hot air and hotplate techniques, small reflow ovens, inspection methods, and defect correction. Checklists and example workflows are included to help reduce errors and improve consistency. Key features: Tools and supplies for SMD assembly and rework Solder paste types, storage, and handling Stencils and paste application methods Pick and place workflow and component orientation Temperature profiles and reflow methods Hot air, hotplate, and reflow oven processes Inspection and quality control Common defects such as tombstoning and solder bridges Practical rework and component replacement Bench-level professional workflows and checklists This book is designed as a practical bench reference for anyone who wants to assemble and troubleshoot their own SMD boards with reliable results.

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Mastering the Language and the Development Platform Many people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs. In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming. In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises. Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them. The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Fertige und selbst aufgebaute Arduino-Knoten im TTN LoRaWAN hat sich als Kommunikationslösung im IoT hervorragend entwickelt. The Things Network (TTN) hat hierzu seinen Beitrag geleistet. Aktuell wird The Things Network auf The Things Stack Community Edition (TTS (CE)) aktualisiert. Die Cluster von TTN V2 werden gegen Ende 2021 geschlossen. Der Autor zeigt Ihnen die notwendigen Schritte, damit Sie in gewohnter Weise LoRaWAN-Knoten mit Hilfe von TTS (CE) betreiben und vielleicht auch das Netz der Gateways durch ein eigenes Gateway erweitern. Mittlerweile gibt es sogar für den mobilen Einsatz geeignete LoRaWAN-Gateways mit denen Sie über Ihr Mobiltelefon Verbindung zum TTN-Server aufbauen können. In diesem Buch werden eine Reihe kommerzieller und Arduino-basierter LoRaWAN-Knoten als auch neue, kostengünstige und für den Batteriebetrieb geeignete Hardware zum Aufbau autonomer LoRaWAN-Knoten vorgestellt. Die Registrierung von LoRaWAN-Knoten und Gateways im TTS (CE) sowie die Bereitstellung der erhobenen Daten über MQTT und die Visualisierung über Node-RED, Cayenne, Thingspeak und Datacake ermöglichen komplexe IoT-Projekte und völlig neue Anwendungen zu sehr geringen Kosten. Das vorliegende Buch versetzt Sie in die Lage, mit batteriebetriebenen Sensoren (LoRaWAN-Knoten) erfasste Daten drahtlos im Internet bereitzustellen und zu visualisieren. Sie lernen die Grundlagen für Smart-City- und IoT-Anwendungen, die beispielsweise die Messung von Luftqualität, Wasserständen, Schneehöhen, das Ermitteln von freien Parkfeldern (Smart Parking) und die intelligente Steuerung der Straßenbeleuchtung (Smart Lighting) u.a.m. ermöglichen.

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