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Principles, Design, and Real-World Applications of Modern Photonics Light shapes our world—from the glow of a simple LED to the precision of a laser beam and the immense power of the sun. LEDs, Lasers, and Sunlight – Principles, Design, and Real-World Applications of Modern Photonics is your comprehensive guide to understanding, designing, and applying modern light technologies. This book takes you on a journey from the fundamentals of photonics—covering the nature of light, optical laws, and color theory—to real-world engineering with today’s most important light sources. You’ll explore how LEDs work, how to design efficient lighting systems, and how to tackle practical challenges such as thermal management, power supply design, and optical performance. Beyond illumination, the book opens doors to specialized applications: horticultural lighting for plant growth, infrared and ultraviolet technologies, modern display systems from LCD to MicroLED, and the fascinating world of lasers—from their physics to their use in medicine, industry, and communication. It also connects light engineering to sustainability through solar energy and thermal radiation. Written with a strong practical focus, this book bridges theory and application. Whether you are an engineer, student, or advanced hobbyist, you’ll gain the tools to turn concepts into working solutions—from selecting components to building complete systems. If you want to understand light not just as a phenomenon, but as a powerful engineering tool, this book will illuminate the way.

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Projects Using Arduino IDE and the LVGL Graphics Library The ESP32 is probably one of the most popular microcontrollers used by many people, including students, hobbyists, and professional engineers. Its low cost, coupled with rich features makes it a popular device to use in many projects. Recently, a board called the ESP32 Cheap Yellow Display (CYD for short) is available from its manufacturers. The board includes a standard ESP32 microcontroller together with a 320x240 pixel TFT display. Additionally, the board provides several connectors for interfaces such as GPIO, serial port (TX/RX), power and Ground. The inclusion of a TFT display is a real advantage as it enables users to design complex graphics-based projects without resorting to an external LCD or graphics displays. The book describes the basic hardware of the ESP32 CYD board and provides details of its on-board connectors. Many basic, simple, and intermediate-level projects are given in the book based on the ESP32 CYD, using the highly popular Arduino IDE 2.0 integrated development environment. The use of both the basic graphics functions and the use of the popular LVGL graphics library are discussed in the book and projects are given that use both types of approaches. All the projects given in the book have been tested and are working. The block diagram, circuit diagram, and the complete program listings and program descriptions of all the projects are given with explanations. Readers can use the LVGL graphics library to design highly popular eye-catching full-color graphics projects using widgets such as buttons, labels, calendars, keypads, keyboards, message boxes, spinboxes, sliders, charts, tables, menus, bars, switches, drop-down lists, animations, and many more widgets.

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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Mini-zonnevoedingzon in, 3,3 V uit Solid-state stereo-audioschakelaarklikvrij en zonder bewegende onderdelen Grote RGB-digitmet through-hole WS2812 LED’s Microfoon-voorversterker met 48V-fantoomvoedingvoor podcasting en pro-audio Blokgolfgeneratoren met regelbare duty cycle en frequentiesimpele schakelingen met CMOS- en TTL-IC’s Eenvoudige dynamiekcompressorsofte aansturing, warm geluid Simpel elektronisch slot Actieve gelijkrichtervoor 2...40 V bij maximaal 3 A met tegenstroomonderdrukking Actieve boxen in- en uitschakelen Ongebalanceerd/gebalanceerd-convertermet RF-filter en DC-bescherming 2023: een AI-odysseewaar komt het vandaan en waar gaat het naar toe? Snelheidsregelaar voor ventilatormet handmatige en thermostaatmodus Laatste nieuwtjes van Arduino Project Hubnieuwe projecten uit de community Overbelastingsmonitorbewaakt netsnoeren Transistorloos knipperlicht in het donkeroscillator met alleen tweedraads onderdelen Morsecode-generatorvoor gebruik als baken of leermiddel! Programmeerbare video-DACvoor elk formaat tot RGB888 Kleintje klavierzonder bewegende onderdelen Dubbel-dobbel zonder microprocessordubbele dobbelsteen op een enkele print – plus enkele ontwerptrucs Elektronische vogelverschrikker Amusante, inspirerende en verbazingwekkende schakelingen LC/LP/HA-thermometernauwkeurige metingen en een binair display THD-generatorvervorming, maar dan opzettelijk Overtemperatuur-indicator met thyristorelektronische onderdelen ongebruikelijk gebruikt Een PTC-flipflop Sociale vogeleen tsjilpende Elektor Klassieker Neonlamp plus microcontroller Temperatuurgestabiliseerde IC-stroombronneutraliseer de temperatuurdrift van deze driebeners Regelbare tweede-orde hogetonen-boostergehoorsteuntje voor ouderen Edwin komt naar huisherinneringen na 53 jaar Eénarmige bandieteen eenvoudige, leuke, nostalgische en leerzame Elektor-klassieker! Eenvoudige digitaal gestuurde variabele weerstand Lekdetectorbeveiligt en alarmeert bij lekkages Eco-timer met automatische uitschakelingverbruikt niets in uitgeschakelde toestand! ChatGPT en Arduino Zenermetermeet de Z-spanning van Z-diodes ≤ 100 V Servotester ESP32 Windows-controller met gratis software Analoge en mixed-signal IC’s van Microchipzuinige signaalverwerking Interfacenormenfilter en overspanningsbeveiliging voor de I²C-bus Li-Ion accumonitorrestlading-indicator geeft visuele feedback PS/2-muis als draai-encoder (en meer...) Simpele schemerschakelaarvoor bestaande lampen of installaties Controller voor waterpompbereid je voor op hoogwater Kerstbal met FM-zonneradiomeer heb je voor de kerst niet nodig Trillingssensor met relaistik of schud om in te schakelen Doorgangstestergevoelig en niet storend In- en uitschakelen met een drukknop Regeling voor mini-boor (2023)een ontwerp uit 1980 herzien Digitale trillingssensorzet trillingen om in nauwkeurig getimede pulsen Ompoolbeveiliging met kleine spanningsval Goedkope frequentiestandaard Kleine DCF77-simulatornauwkeurige fake-tijdstandaard De Lilygo T-PicoC3combineert RP2040 en ESP32-C3 met een full-color TFT-display Hexadoku

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A Practical Guide to Tube Electronics Vacuum tubes continue to exert a special fascination. Their long-lasting operation, robustness, and characteristic behavior fundamentally distinguish them from modern semiconductor technology. Despite their age, tubes are by no means merely historical components; they are still used today in audio technology, measurement technology, and especially in hobbyist applications. This book is aimed at electronics enthusiasts and hobbyists who want to not only learn about and understand vacuum tubes in theory, but also use them in practice. It conveys the fundamentals of tube technology, explains the different designs and designations, shows typical circuits, and addresses power supplies, measurements, and safety-related aspects. The focus is on practical explanations and realistic examples from the workshop. Numerous tips help you avoid typical mistakes, build circuits, and understand tube devices and their construction. Basic knowledge of electronics is assumed. Vacuum Tubes: A Practical Guide to Tube Electronics offers an accessible and thorough introduction to tube technology – factual, comprehensible, and with a clear focus on practical applications.

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A Practical Guide to Tube Electronics Vacuum tubes continue to exert a special fascination. Their long-lasting operation, robustness, and characteristic behavior fundamentally distinguish them from modern semiconductor technology. Despite their age, tubes are by no means merely historical components; they are still used today in audio technology, measurement technology, and especially in hobbyist applications. This book is aimed at electronics enthusiasts and hobbyists who want to not only learn about and understand vacuum tubes in theory, but also use them in practice. It conveys the fundamentals of tube technology, explains the different designs and designations, shows typical circuits, and addresses power supplies, measurements, and safety-related aspects. The focus is on practical explanations and realistic examples from the workshop. Numerous tips help you avoid typical mistakes, build circuits, and understand tube devices and their construction. Basic knowledge of electronics is assumed. Vacuum Tubes: A Practical Guide to Tube Electronics offers an accessible and thorough introduction to tube technology – factual, comprehensible, and with a clear focus on practical applications.

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This bundle includes both volumes of "KiCad Like a Pro" (4th edition 2024). In Fundamentals and Projects (normal price: €39.95), you'll learn how to use KiCad through a practical approach, helping you quickly become productive and start designing your own boards. Advanced Projects and Recipes (normal price: €34.95) allows you to practice your new KiCad skills by challenging yourself with a series of real-world projects. The latest iteration of KiCad, the world’s best free-to-use Printed Circuit Board tool, is packed with features usually found only in expensive commercial CAD tools. This modern, cross-platform application suite built around schematic and design editors, with auxiliary applications is a stable and mature PCB tool. KiCad 8 is a perfect fit for electronic engineers and makers. Here are the most significant improvements and features in KiCad 8, both over and under the hood: Modern user interface, completely redesigned from earlier versions Improved and customizable electrical and design rule checkers Theme editor allowing you to customize KiCad on your screen Ability to import projects from Eagle, CADSTART, and more Python scripting API Improved integrated SPICE circuit simulator Multi-sheet schematics Filters define selectable elements Enhanced interactive router helps you draw single tracks and differential pairs with precision New or enhanced tools to draw tracks, measure distances, tune track lengths, etc. Advanced interactive router Built-in bill of materials generator Realistic ray-tracing capable 3D viewer Customizable teardrops Plug-in manager for quick installation of themes, libraries and functionalities such as autorouters and BOM generators The first book KiCad Like A Pro – Fundamentals and Projects will teach you to use KiCad through a practical approach. It will help you become productive quickly and start designing your own boards. Example projects illustrate the basic features of KiCad, even if you have no prior knowledge of PCB design. The author describes the entire workflow from schematic entry to the intricacies of finalizing the files for PCB production and offers sound guidance on the process. The second book KiCad Like A Pro – Advanced Projects and Recipes will help you to practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more.

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A Project-Based Introduction to Microcontrollers and Drone Control A Practical Introduction to Embedded Systems with the ESP32 This book is intended for readers who are new to embedded systems and looking for a structured, example-driven way to begin. If you’ve explored general-purpose electronics or Arduino-based resources but found them too broad or lacking in practical application, this guide offers a more focused alternative. With a small, affordable set of components – such as LEDs, sensors, an OLED screen and a motion sensor – you’ll build and work with the same hardware setup throughout the book. This allows you to focus on learning and experimenting without constant reconfiguration. Topics include: Understanding and programming the ESP32 microcontroller Using the Arduino IDE to write and deploy code Exploring cyber-physical systems, culminating in basic drone control No prior experience with Arduino or embedded development is required. Each section includes hands-on examples and mini-projects designed to reinforce core concepts and encourage deeper exploration. By the end, you’ll be equipped not only to reproduce the book’s examples, but also to extend them toward your own ideas and applications. Whether your interest is in learning embedded programming, building interactive systems, or exploring educational drone control, this book provides a clear and practical path to getting started.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Arduino Portenta Machine Control and Arduino Portenta H7A CAN-to-MQTT Gateway Demo Project Unboxing the Elektor LCR Meter with David Cuartielles MicroPython Enters the World of Arduino Connected Projects, SimplifiedDive Into the Arduino Cloud Introduction to TinyMLBig Is Not Always Better Arduino K-Way Writing Arduino Sketches Just Got Better Get to Know Arduino Getting Started with the Portenta X8Manage Software Securely with Containers Build, Deploy, and Maintain Scalable, Secure ApplicationsWith Arduino Portenta X8 Featuring NXP’s i.MX 8M Mini Applications Processor and EdgeLock SE050 Secure Element How I Automated My HomeArduino CEO Fabio Violante Shares Solutions Altair 8800 SimulatorHardware Simulation of a Vintage Computer MS-DOS on the Portenta H7Run Old-School Software on Contemporary Hardware Grow It YourselfA Digitally Controlled, Single-Box Solution for Indoor Farming Save the Planet With Home Automation?MQTT on the Arduino Nano RP2040 Connect Go Professional with Arduino Pro Smart Ovens Take a Leap Into the Future Tagvance Builds Safer Construction Sites with Arduino Santagostino Breathes Easywith Remote Monitoring that Leverages AI for Predictive Maintenance Security Flies High with RIoT Secure’s MKR-Based Solution Open-Source Brings a New Generation of Water Management to the World SensoDetect Deforestation with Sound Analysis The Mozzi Arduino Library for Sound SynthesisInsights from Tim Barrass The New Portenta X8 (with Linux!) and Max Carrier Redefine What’s Possible How Using Arduino Helps Students Build Future Skills Must-Haves for Your Electronics Workspace The Importance of Robotics in Education Dependable IoT Based Upon LoRa Unboxing the Portenta Machine Control 8-Bit Gaming with Arduboy Reducing Water Usage at Horseback Riding TracksAn IoT to Constantly Monitor Soil Humidity and Temperature Levels The Panettone ProjectA sourdough starter management and maintenance system Supporting Arduino Resellers Space Invaders with Arduino Art with ArduinoInspiring Insights from Artists and Designers Arduino Product Catalogue The Future of Arduino

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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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