Suchergebnisse für "iot or buch"

RFID technology has conquered many areas in which barcodes, magnetic strips and contact smartcards were used previously. Everyday applications, such as electronic ticketing, access cards, debit cards and electronic identity documents would not be possible without this technology. MIFARE is the most widely used RFID technology, and this book provides a practical and comprehensive introduction to it. Among other things, the initial chapters cover physical fundamentals, relevant standards, RFID antenna design, security considerations and cryptography. The complete design of a reader’s hardware and software is described in detail. The reader’s firmware and the associated PC software support programming using any .NET language. The specially developed PC program, “Smart Card Magic.NET”, is a simple development environment that supports sending commands to a card at the click of a mouse, as well as the ability to create C# scripts. Alternatively, one may follow all of the examples using Visual Studio 2010 Express Edition. Finally, the major smart card reader API standards are introduced. The focus is on programming contactless smartcards using standard PC/SC readers using C/C++, Java and C#.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Low-Noise Lab Power Supply (1)A Quiet Source for Sensitive Circuits STM32 Edge AI Contest 2025: The Winners Batteries TodayTechnology and Differences in Lithium Batteries Adjustable Electronic LoadStatic + Dynamic DC Load Step-Down Converter from 48 V to 5 VThe Story of Circuit Development Autonomous Sensor Node v2.0Part 2: Hardware Validation and Power Optimizations VaristorsPeculiar Parts, the Series Graphical Grid Frequency MeterMonitor Grid Quality Starting Out in Electronics……Brings Its Own End Peak Current Load SMD FerritesMore Resilient Against Current Peaks Elektor Live! Expert Day 2025 Energy Harvesting Set to Accelerate IoT and IIoT Use CasesHow Energy Harvesting Frees IoT from the Grid Fnirsi DPS-150Compact and Portable Power Supply and Converter Adjustable USB-C Power SourceTurn Your USB-C Charger Into an Adjustable Power Supply Simple Charger and Capacity TesterWith Two Cheap “Off-the-Shelf” Modules Smart Color Detector with AI Voice and Playback PbMonitor v2.0Introduction to the Updated Battery Monitoring System A Fan for the Mini Reflow PlateSmart Modifications That Improve Results From Life’s ExperienceThe Tsunami of Indulgence Err-lectronicsCorrections, Updates, and Readers’ Letters 2026: An AI OdysseyWhen Models Start Dictating the Hardware Precision Picoammeter (2)Assembling, Calibration, and Test Wireless Device Poweringwith Inductive Technology AI-Based Autonomous DrivingThe RDW’s Self Driving Challenge 2024 Sound Card as Signal GeneratorPC as DCF77 Test Transmitter

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The author, Johan Basse Bergqvist, is an engineer, a musician, and an audiophile with a knack for building projects that produce the desired results. The combination of these skills leads to a uniquely valuable perspective on audio design that is routinely reflected in the book and passed on to the readers. Several design projects are provided, 40 in total. The designs are explained, and the unique features or methods he uses are described in further detail. Each design includes detailed schematics and a complete parts list. Many of the projects also include layout documentation in the form of CAD photos of the PCB layouts. The range of projects is very diverse and includes something that will appeal to everyone. Stereo amplifiers, guitar and bass amplifiers, preamplifiers for phono, and microphones are all covered. Several variants for each type are included, and the power amplifier designs range from a few watts to several hundred watts, which meet almost any power level you might tackle.

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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. De ESP-BLASTEen mini ESP32 raketdrone die ruim 100 km/u vliegt STM32Cube Innovation-ChallengeDoe mee met je beste STM32C5-ontwerp Wireless workshop (1)Radiomodules uitgelegd: 433 MHz CC1101 sub-GHz-transceiver AM-zenderMet sinus- en blokgolfgenerator op Raspberry Pi Pico AudiotronicaDe vervormingsfactor CoffeeCallerOmroepsysteem met mesh-netwerk en Zephyr gebaseerde software Elektor wordt 65Projecten uit voorgaande september- en oktobermaanden Bluetooth Channel Sounding voor het volgen van objectenAfstandsmeting met centimeterprecisie voor het IoT van de volgende generatie 2026: Een AI-odysseeKwantumcomputing is geen volgende GPU Om de cloud te beveiligen, is edge-beveiliging nodig Eerste ervaringen met de HackRF ProPraktische tests met de nieuwe SDR-hardware Modemupgrade van GPRS/2G naar LTE/4GEen draadloos alarmsysteem als voorbeeld Lusvormige antenne met RF-bouwstenenDeel 1: Een zelfbouw kortegolfantenne met instelbare richtingsgevoeligheid Internetradio naar AM-converterMet een ESP32-S3 als zender Err-lectronics Mioty, een overzichtFraunhofer's aanpak van LPWAN WerkbankwijsheidPraktische tips van experts Walter, de compacte IoT-moduleDeel 2: Toegang tot weer- en datadiensten

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Dieser vollständige Programmierkurs für den ESP32-Mikrocontroller umfasst ein Lehrbuch, ein Komponenten-Kit, praxisnahe Projekte sowie einen umfassenden Online-Kurs mit Simulationen. Er eignet sich ideal für das schrittweise Erlernen der Embedded-Programmierung in MicroPython anhand eines praktischen, hands-on Ansatzes. Eine praxisnahe Einführung in Embedded Systems mit dem ESP32 Dieser Kurs richtet sich an Personen ohne Vorkenntnisse im Bereich Embedded Systems, die einen strukturierten und beispielbasierten Einstieg suchen. Ein Kit bestehend aus LEDs und Widerständen, Schaltern, Sensoren und Aktoren, Displays, einem Breadboard und Kabeln sowie weiteren Komponenten ist enthalten. Diese werden im Kurs verwendet, um Beispielanwendungen zu veranschaulichen. Vorkenntnisse mit Arduino oder Embedded-Entwicklung sind nicht erforderlich. Jeder Abschnitt enthält praktische Beispiele und Mini-Projekte, die wichtige Konzepte festigen und zur weiteren Vertiefung anregen. Am Ende des Kurses werden Sie nicht nur in der Lage sein, die Beispiele nachzuvollziehen, sondern auch eigene Ideen und Anwendungen umzusetzen. Was werden Sie lernen? Programmierung von Mikrocontrollern in MicroPython mit dem ESP32 unter Verwendung der Thonny IDE Arbeiten mit digitalen Ein- und Ausgängen, Auslesen von Tastern und Encodern, Steuern von LEDs und Relais Auslesen analoger Eingänge, Spannungen und analoger Sensoren Erzeugung analoger Ausgangssignale und PWM Verwendung serieller Kommunikation wie UART, I²C und SPI zur Steuerung von Displays und zum Auslesen digitaler Sensoren und SD-Karten Zeitmanagement Arbeiten mit Interrupts Echtzeit-Sensordatenerfassung und Steuerung über Taster, LEDs und Displays Steuerung von Aktoren wie Relais und Servomotoren Für wen ist dieser Kurs geeignet? Studierende und Selbstlerner im Bereich Embedded Systems Makers und IoT-Enthusiasten, die ihre Hardware-Kenntnisse verbessern möchten Lehrkräfte und Trainer, die sofort einsetzbares Unterrichtsmaterial suchen Was ist im Lieferumfang enthalten? Zugang zum vollständigen Kurs auf der Elektor Academy Pro-Lernplattform ESP32 Mikrocontroller-Board (+ USB-Kabel) Buch: Programming Microcontrollers in MicroPython Downloadbare Projektdateien für jedes Modul Komponenten-Set: 2× LED, rot, 5 mm LED, grün, 5 mm 3× Widerstand, 470 Ω, 0,25 W LDR Potentiometer, 10 kΩ, linear Taster Drehencoder-Modul Relaismodul DHT22 Feuchtigkeits- und Temperatursensor TM1637-kompatibles 4-stelliges 7-Segment-Display MPU-6050 IMU mit Stiftleisten SSD1306-kompatibles I²C OLED-Display Micro-SD-Kartenadapter mit Stiftleiste Buzzer SG90 Mikro-Servo ILI9341-kompatibles SPI 240×320 TFT-Display 20× Jumperkabel Breadboard Alle Programmierkurse (und Unterschiede im Inhalt) Kurs Arduino Raspberry Pi Pico with Arduino C/C++ ESP32 with Arduino C/C++ Raspberry Pi Pico with MicroPython ESP32 with MicroPython Online-Kurs 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 Board Uno R3 Raspberry Pi Pico ESP32 Raspberry Pi Pico ESP32 Buch 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 40-teiliges Komponenten-Set 40-teiliges Komponenten-Set 40-teiliges Komponenten-Set 40-teiliges Komponenten-Set 40-teiliges Komponenten-Set

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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.

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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. OBD2-sensordashboardOude meters vormden het startpunt van een zoektocht naar echte gegevens OBD2: voeg een toerenteller en schakelindicator toe aan je autoRetro, maar uiterst nuttig LiDAR- en Visiesensoren voor Robotica Sensor+Test 2025 en PCIM 2025 Contactloze E-Veldmetingen (1)Een Trillende Membraan voor het Detecteren van Gelijkspanningen of Statische Elektrische Velden Draadloze brievenbusmeldervan optische sensoren tot radar: enkele mogelijkheden Elektor Mini-Wheelieeen zelfbalancerende robot ZonnecellenVreemde onderdelen, de serie Aan de slag met een moderne radarsensorStaat een nauwkeurige meting op uw radar? Uit het leven gegrepenpapierfabriek CybersecurityZware tijden voor hackers Infographics: IoT en sensoren 2025 Bluetooth 6.0 brengt verbeterde toepassingen voor afstandsbepalingNieuwe versie biedt betere apparaatpositionerings- en -locatieservices Draadloze communicatie verkennen met BeagleY-AI Err-lectronicsCorrecties, updates en lezerspost Alle begin......sluit het thema opamps af Een krachtige AI-codeerassistentsneller ontwikkelen met Continue en Visual Studio Code Zonne-laadregelaar met MPPT (2)Het schema Ultrasone obstakeldetectoreen eenvoudig project om slechtzienden te helpen 2025: Een AI-odysseeHalfjaaroverzicht Raspberry Pi Standalone MIDI-synthesizer (3)Het slimmer maken en een gebruikersinterface toevoegen Meshtastic: een demonstratieprojectEen slim netwerk van LoRa-radio's Analoge audio-frequentiegeneratorHoogwaardige sinusgenerator met instelbare frequentie

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Drahtlose Kommunikation – sei es zur Ton-, Daten- oder Bildübertragung – prägt unser heutiges Leben. Während noch Mitte des letzten Jahrhunderts der Rundfunk (und etwas später das Fernsehen) die dominierenden Anwendungen der drahtlosen Kommunikation waren, gibt es heute kaum mehr ein technisches Gerät, das nicht das Mittel der drahtlosen Kommunikation nutzt. Allen voran das beliebte Smartphone. Daneben gibt es sehr viele Anwendungen, die wir nicht sofort und automatisch mit den Begriffen Radio oder Funk verbinden, die aber auf der Nutzung elektromagnetischer Strahlung basieren. So zum Beispiel der Wagenschlüssel, die über Bluetooth verbundenen Kopfhörer, der automatische Rasenmäher, die gehassten Radargeschwindigkeitsmesser, der Laptop, der über Wi-Fi mit dem Internet verbunden ist, die kleinen Navigationsempfänger, usw. Diesen Anwendungen gemeinsam ist die Nutzung physikalischer Gegebenheiten durch die Technik. Ob Radar, Satellitenfernsehen, oder einfach nur das alte Mittelwellenradio, alle bauen auf denselben Grundlagen auf. Das Ziel dieses Buch ist es, diese Grundlagen zu erläutern und damit das Verständnis für die darauf aufbauenden Anwendungen zu fördern. Es soll Studenten den Einstieg ins Fachgebiet erleichtern und Voraussetzungen für den Zugang zu den Standardwerken der Fachliteratur schaffen. Es richtet sich aber auch an Personen, die an der Physik und der Technik interessiert sind und einen tieferen Einblick in die Grundlagen der drahtlosen Kommunikation und deren Anwendung erhalten wollen.

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Program and build RPi Pico-based ham station utilities, tools, and instruments Although much classical HF and mobile equipment is still in use by large numbers of amateurs, the use of computers and digital techniques has now become very popular among amateur radio operators. Nowadays, anyone can purchase a €5 Raspberry Pi Pico microcontroller board and develop many amateur radio projects using the “Pico” and some external components. This book is aimed at amateur radio enthusiasts, Electronic Engineering students, and anyone interested in learning to use the Raspberry Pi Pico to shape their electronic projects. The book is suitable for beginners in electronics as well as for those with wide experience. Step-by-step installation of the MicroPython programming environment is described. Some knowledge of the Python programming language is helpful to be able to comprehend and modify the projects given in the book. The book introduces the Raspberry Pi Pico and gives examples of many general-purpose, software-only projects that familiarize the reader with the Python programming language. In addition to the software-only projects tailored to the amateur radio operator, Chapter 6 in particular presents over 36 hardware-based projects for “hams”, including: Station mains power on/off control Radio station clock GPS based station geographical coordinates Radio station temperature and humidity Various waveform generation methods using software and hardware (DDS) Frequency counter Voltmeter / ammeter / ohmmeter / capacitance meter RF meter and RF attenuators Morse code exercisers RadioStation Click board Raspberry Pi Pico based FM radio Using Bluetooth and Wi-Fi with Raspberry Pi Pico Radio station security with RFID Audio amplifier module with rotary encoder volume control Morse decoder Using the FS1000A TX-RX modules to communicate with Arduino

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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 Red Pitaya (STEMlab) is a credit card-sized, open-source test and measurement board that can be used to replace most measurement instruments used in electronics laboratories. With a single click, the board can transform into a web-based oscilloscope, spectrum analyser, signal generator, LCR meter, Bode plotter, and microcontroller. The Red Pitaya (STEMlab) can replace the many pieces of expensive measurement equipment found at professional research organisations and teaching laboratories. The device, that based on Linux, includes an FPGA, digital signal processing (DSP), dual core ARM Cortex processor, signal acquisition and generation circuitry, micro USB socket, microSD card slot, RJ45 socket for Ethernet connection, and USB socket – all powered from an external mains adaptor. This book is an introduction to electronics. It aims to teach the principles and applications of basic electronics by carrying out real experiments using the Red Pitaya (STEMlab). The book includes many chapters on basic electronics and teaches the theory and use of electronic components including resistors, capacitors, inductors, diodes, transistors, and operational amplifiers in electronic circuits. Many fun and interesting Red Pitaya (STEMlab) experiments are included in the book. The book also makes an introduction to visual programming environment. The book is written for college level and first year university students studying electrical or electronic engineering.

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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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