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311 Circuits is the twelfth book in Elektor’s celebrated ‘300’ series. An immense source of inspiration for all electronics enthusiasts and professionals, this book deserves a place not far from the workbench. This book contains circuits, design ideas, tips and tricks from all areas of electronics: audio & video, computers & microcontrollers, radio, hobby & modelling, home & garden, power supplies & batteries, test & measurement, software, not forgetting a section ‘miscellaneous’ for everything that doesn’t fit in one of the other categories. 311 Circuits presents complete solutions for numerous problems, as well as starting points for your own creations. 311 Circuits has been compiled from the 2009, 2010 and 2011 ‘Summer Circuits’ double editions of Elektor magazine. The book is mostly based on readers’ contributions, supplemented by circuits engineered and developed in the Elektor Labs.

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Design IoT Projects with Raspberry Pi, Arduino and ESP32 The Internet of Things (IoT) is becoming a major application area for embedded systems. As a result, more and more people are becoming interested in learning about embedded design and programming. Technical colleges and universities are moving away from legacy 8 and 16-bit microcontrollers and are introducing 32-bit embedded microcontrollers to their curriculums. Many IoT applications demand precision, high processing power, and low power consumption. Produced by IBM, Node-RED is an open-source visual editor for wiring the Internet of Things. Node-RED comes with a large number of nodes to handle a multitude of tasks. The required nodes are selected and joined together to perform a particular task. Node-RED is based on flow type programming where nodes are configured and joined together to form an application program. There are nodes for performing complex tasks, including web access, Twitter, E-mail, HTTP, Bluetooth, MQTT, controlling GPIO ports, etc. One particularly nice aspect of Node-RED is that the programmer does not need to learn how to write complex programs. For example, an email can be sent by simply joining nodes together and writing only a few lines of code. The aim of this book is to teach how Node-RED can be used in projects. The main hardware platform used with most of the projects in this book is Raspberry Pi 4. Chapters are included to show how Node-RED can be also be used with Arduino Uno, ESP32 DevKitC, and the ESP8266 NodeMCU microcontroller development boards.

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The field of digital electronics is central to modern technology. This e-book presents fundamental circuits using gates, flip-flops and counters from the CMOS 4000 Series. Each of the 50 experiments has a circuit diagram as well as a detailed illustration of the circuit’s construction on solderless breadboard. Learning these fundamentals is best done using practical experiments. Building these digital circuits will improve your knowledge and will be fun to boot. Many of the circuits presented here have practical real-life applications. With a good overview of the field, you’ll be well equipped to find simple and cost-effective solutions for any application. The e-book is targeted essentially at students, trainees and anyone with an interest in and requiring an introduction to digital control electronics. Moreover, the knowledge gleaned here is the foundation for further projects in the field of microcontrollers and programming.

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48 années sur clé USB – Année 2025 incluse ! NOUVEAU : Pour les articles à partir de l’année 2000, une option de téléchargement séparée est désormais disponible pour des ressources supplémentaires telles que les plans de PCB, les fichiers Gerber et les logiciels ! Cette clé USB (64 Go) contient tous les numéros d’Elektor en français des années 1978 à 2025. Elektor propose à ses lecteurs des montages électroniques de conception professionnelle et aisément reproductibles, dans les domaines de l’électronique et de l’informatique appliquées. Il leur apporte également des informations sur l’évolution technologique et les nouveaux produits. Les principaux domaines d’application sont : Alimentation Audio, vidéo & HiFi Auto, moto & vélo Domestique Expérimentation Hautes-fréquences Informations générales Loisirs Mesure Microcontrôleurs & PC Photographie Plus de 10.000 articles d’Elektor sont réunis sur cette clé USB, présentés par ordre de parution (mois/année). Elektor GPT Elektor GPT est un outil basé sur l'IA qui aide les utilisateurs à naviguer dans les archives d'Elektor, vieilles de plusieurs décennies. Grâce à des algorithmes de recherche avancés et au traitement du langage naturel, Elektor GPT trouve rapidement des articles, des projets et d'autres ressources dans les archives. Spécifications Stockage 64 Go Connecteurs 1x USB-A1x USB-C Matériel et logiciel requis Ordinateur avec Adobe Reader version 7 ou sup. Navigateur Internet

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The PC has long-time outgrown its function as a pure computer and has become an all-purpose machine. This book is targeted towards those people that want to control existing or self-built hardware from their computer. Using Visual Basic as Rapid Application Development tool we will take you on a journey to unlock the world beyond the connectors of the PC. After familiarising yourself with Visual Basic, its development environment and the toolset it offers, items such as serial communications, printer ports, bit-banging, protocol emulation, ISA, USB and Ethernet interfacing and the remote control of test-equipment over the GPIB bus, are covered in extent. Each topic is accompanied by clear, ready to run code, and where necessary, schematics are provided that will get your projects up to speed in no time. This book will show you advanced things like: using tools like Debug to find hardware addresses, setting up remote communication using TCP/IP and UDP sockets and even writing your own internet servers. Or how about connecting your own block of hardware over USB or Ethernet and controlling it from Visual Basic. Other things like internet-program communication, DDE and the new graphics interface of Windows XP are covered as well. All examples are ready to compile using Visual Basic 5.0, 6.0, NET or 2005. Extensive coverage is given on the differences between what could be called Visual Basic Classic and Visual basic .NET / 2005.

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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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Open-Network Weather Station Mk.2Part 1: Introduction and hardware elements Artificial Intelligence for Beginners (1)Object recognition using the Maixduino board Universal Triac Control Module with ATmegaSwitch and dim a variety of loads GitHub For DummiesHow to download something from GitHub My IoT Button: A Button for the WebPart 2: Prototyping with board and cloud TMS0280 Speech SynthesizerPeculiar Parts, the series InteractiveCorrections & Updates || Questions & Answers BASIC for the ESP32/ESP8266 (2)An hourglass with the ESP8266 and Annex WiFi RDS Developer's ZoneTips & Tricks, Best Practices and Other Useful Information BalBot: a Self-Balancing RobotModern acceleration sensors ease the construction process Starting Out in Electronics (3)Easier than imagined! Small Circuits RevivalCapita Selecta from the Elektor Project Suggestions Box Tamper-Evident BoxSend data securely through postal services Elektor New Precise Nixie Clock RevisitedAn engineering bulletin for enthusiastic users new and old Practical ESP32 Multitasking (3)Software timers SigFox and the IoT (4)Setting up a dashboard Start-Up Update: The Elektor Investment Program Review: Joy-IT HD35 Electronic USB LoadTest & verify USB power performance CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays Analogue Electronics Design (3)Case Study #1 — Section 3: Preamplifier response optimization and trade-offs Inexpensive E-ScooterHow does Lidl's "road approved" 300 euro E-scooter perform? Steeped in ElectronicsLead-free soldering and EU regulatory zeal Lab, Sweet LabA glimpse of The Holy Place — no unauthorized entry. Review: The PeakTech 6080 A Lab Power SupplyA neat lab PSU for not much money A Big ChallengeSafe products in the IoT era Elektor 1.2 GHz Multifunction Frequency Meter (1992/93)Crossing the magic 1 GHz border Hexadoku

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In this book the author presents all essential aspects of microcontroller programming, without overloading the reader with unnecessary or quasi-relevant bits of information. Having read the book, you should be able to understand as well as program, 8-bit microcontrollers. The introduction to microcontroller programming is worked out using microcontrollers from the PIC series. Not exactly state-of-the-art with just 8 bits, the PIC micro has the advantage of being easy to comprehend. It is offered in a DIP enclosure, widely available and not overly complex. The entire datasheet of the PIC micro is shorter by decades than the description of the architecture outlining the processor section of an advanced microcontroller. Simplicity has its advantages here. Having mastered the fundamental operation of a microcontroller, you can easily enter into the realms of advanced softcores later. Having placed assembly code as the executive programming language in the foreground in the first part of the book, the author reaches a deeper level with ‘C’ in the second part. Cheerfully alongside the official subject matter, the book presents tips & tricks, interesting measurement technology, practical aspects of microcontroller programming, as well as hands-on options for easier working, debugging and faultfinding.

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A Handbook on DIY Nowadays, security problems are rarely properly solved or correctly addressed. Electronic security is only part of the chain in making a system secure. Electronic security is usually addressed as network or software security, neglecting other aspects, but the chain is only as strong as its weakest link. This book is about electronic hardware security, with an emphasis on problems that you can solve on a shoestring DIY budget. It deals mostly with secure communications, cryptosystems, and espionage. You will quickly appreciate that you can’t simply buy a trustworthy and reliable cryptosystem off the shelf. You will then realise that this applies equally to individuals, corporations, and governments. If you want to increase your electronic security awareness in a world already overcrowded with networks of microphones and cameras, this is a book for you. Furthermore, if you want to do something DIY by designing and expanding upon simple electronic systems, please continue reading. Some of the devices described are already published as projects in the Elektor magazine. Some are still ideas yet to be worked out. Complexity is the main enemy of security, so we'll try to keep to simple systems. Every chapter will analyse real-life espionage events or at least several hypothetical scenarios that will hopefully spark your imagination. The final goal is to build a security-conscious mindset (or “to get into a head of a spy”) which is necessary to recognise possible threats beforehand, to design a truly secure system. Don’t bother reading if: you think you and your secrets are 100% safe and secure you think somebody else can effectively handle your security you think conspiracy theories only exist in theory – Telefunken’s masterpiece the “FS-5000 Harpoon” was built on one!

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Elektor 05-06/2021 en PDF (DE)

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Clever Tricks with ATmega328 Pro Mini Boards With a simple Pro Mini board and a few other components, projects that 20 or 30 years ago were unthinkable (or would have cost a small fortune) are realized easily and affordably in this book: From simple LED effects to a full battery charging and testing station that will put a rechargeable through its paces, there’s something for everyone. All the projects are based on the ATmega328 microcontroller, which offers endless measuring, switching, and control options with its 20 input and output lines. For example, with a 7-segment display and a few resistors, you can build a voltmeter or an NTC-based thermometer. The Arduino platform offers the perfect development environment for programming this range of boards. Besides these very practical projects, the book also provides the necessary knowledge for you to create projects based on your own ideas. How to measure, and what? Which transistor is suitable for switching a certain load? When is it better to use an IC? How do you switch mains voltage? Even LilyPad-based battery-operated projects are discussed in detail, as well as many different motors, from simple DC motors to stepper motors. Sensors are another exciting topic: For example, a simple infrared receiver that can give disused remote controls a new lease on life controlling your home, and a tiny component that can actually measure the difference in air pressure between floor and table height!

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Learning circuit design the fun way Welcome to the world of electronics! Getting started in electronics is not as difficult as you may think. Using this book, you will explore and learn the most important electrical and electronics engineering concepts in a fun way by doing various experiments and by simulating circuits. It will teach you electronics practically without getting into complex technical jargon and long calculations. As a result, you will be creating your own projects soon. No prior knowledge of electronics is required, only some basic algebra is used in a few simple calculations. Many tested and working projects and simulations are presented to familiarise yourself with the construction of electronic circuits. Circuit simulation is introduced at an early stage to enable you to experiment with circuits easily without breaking anything. You will learn: The concepts of voltage, current, and power AC and DC Basic lamp circuits with switches Passive components: resistors, capacitors & inductors RC & RCL circuits Electromagnetism Loudspeakers, relays, buzzers, and transformers Active components: diodes & LEDs, bipolar transistors & MOSFETs Transistor-based switching circuits Optocoupler circuits Astable & monostable multivibrators Using the 555 timer IC The operational amplifier Digital logic Advanced examples: amplifiers, oscillators, filters, and sensors Test and measurement tools Microcontrollers: Arduino UNO, ESP32, Raspberry Pi Pico, and Raspberry Pi Reading datasheets and best practices for selecting components EMC & EMI and norms & regulations

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