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Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. adaptateur de mesure USBTest du courant et des signaux des ports USB sortie boucle de courant 4-20 mA pour Arduino UnoUne interface de boucle de courant fiable et insensible aux interférences électromagnétiques commande automatique pour aspirateurGardez votre établi propre générateur DDS avec ATtiny testeur d'ampli-op V2Nouveau circuit imprimé – désormais compatible avec les CMS amplificateur audio à tube 550 mWson chaleureux des tubes à vide surveillance des fusiblesavec une LED clignotante préamplificateur RIAA HQExploitez tout le potentiel sonore de vos disques vinyles ! Outil de réglage pour platines vinylesGénérateur de lumière stroboscopique 100–120 Hz basé sur Arduino Elektor Classics : ampli vidéo gradateur à télécommande infrarougeContrôlez votre éclairage avec confort et précision comment utiliser switch…case avec des chaînes de caractères en C++/EDI Arduino détecteur d’aimantsAvec un simple capteur à effet Hall bouton de mise sous tension intelligent pour Raspberry PiUne solution pour Raspberry Pi jusqu’au modèle 4 astuces clés pour makersDes conseils pros pour vos projets projets pratiques avec le timer 555Commande de moteur CC et jeux de rapidité moniteur de charge CA simpleÉconomisez de l'énergie grâce à un appareil simple batteries externes en parallèleTrois jours d’autonomie VFO jusqu’à 15 MHzRéalisation avec un Raspberry Pi Pico accordeur de violon avec ATtiny202 Elektor Classics : ampli vidéo pour TV N&B capacimètre20 pF à 600 nF horloge quasi analogique Mk IIDeux anneaux LED pour les heures et les minutes concevez sans limites(grâce à l’écosystème complet d’Arduino) dé à lampes néon Elektor Classics : indicateur d'accord RTTY solutions matérielles inspirantes pour vos projets ESP Elektor Classics : alimentation 3 A LED RGB avec circuit de commande intégréLumière de précision : les ICLED établissent de nouvelles normes expérience : un Thérémine analogico-numérique ?Combiner des capteurs numériques modernes avec l’intemporel générateur analogique XR2206 carte émetteur-récepteur audio ESP32 (1)Démo : lecture de fichiers WAV depuis une carte SD infographies : Circuits et conception de circuits 2025 petit mixeur audioUne conception polyvalente et modulable minuteur intelligent pour éclairage d’escalierÉconomisez encore plus sur votre facture d’énergie ! modernisez vos voletsContrôlez les systèmes Velux avec un ESP32 et MQTT chauffe-pieds à transistorsConfort économe en énergie le quadricoptère M5Stamp Fly est-il le prochain drone Tello ? (Revue) optimiser la portée Wi-Fi de l’ESP32-C3 SuperMiniUne modification d’antenne simple et efficace station de soudage à air chaud ZD-8968Un outil de travail économique ou uniquement de l'air chaud ? testeur de radar de reculDétecter les pannes du système d’aide au stationnement d’un véhicule

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Bauen Sie Ihre perfekte Wetterstation oder forschen Sie zusammen mit der ganzen Welt an Umweltdaten. Mit vielen praktischen Projekten für Arduino, Raspberry Pi, NodeMCU, ESP32 und weiteren Developmentboards. Wetterstationen erfreuen sich seit Jahrzehnten großer Beliebtheit. Ob in aktuellen oder längst eingestellten Elektronik-Magazinen – regelmäßig finden sich Beiträge zum Eigenbau einer Wetterstation. Im Laufe der Jahre wurden diese Systeme immer ausgefeilter und können heute nahtlos in das Smart Home integriert werden. Allerdings erfordert dies oft die Bindung an einen (teuren) Markenhersteller, der sämtliche Komponenten abdeckt. Mit Ihrer eigenen Wetterstation können Sie jedoch mühelos mithalten – und sogar Messwerte erfassen, die kommerzielle Geräte nicht bieten. Dabei kommt der Spaß nicht zu kurz: Sie erweitern spielerisch Ihr Wissen über Elektronik, moderne Mikrocontroller-Developmentboards und Programmiersprachen. Schon für weniger als zehn Euro können Sie erste Umweltdaten erfassen und Ihr System Schritt für Schritt mit wachsendem Interesse weiter ausbauen. Aus dem Inhalt: Wind und Wetter auf der Spur Wetterdisplay mit OpenWeatherMap und Vakuum-Fluoreszenzanzeige Flüchtige organische Verbindungen in der Atemluft Mit MQ-Sensoren arbeiten: Kohlenmonoxid messen – geruchlos aber extrem giftig CO2-Ampel mit ThingSpeak-IoT-Anbindung Ein Gießautomat für Ihre Pflanzen Gutes Raumklima: Temperatur und Luftfeuchtigkeit sind wichtige Kriterien Schickes Thermometer mit alter Röhrentechnik Nostalgisches Wetterhäuschen für die ganze Familie Luftdruck und Temperatur genau messen Sonnenbrand-Warngerät DIY-Sensor für die Sonnenscheindauer Das Smartphone zeigt’s an: Nebel oder klare Sicht? Erdbeben erkennen Pegelstände von Gewässern und Behältern pH-Wert von Gewässern bestimmen Radioaktive Strahlung erkennen Mit GPS wissen Sie weltweit, wo ihr Sensor ist Logdateien mit Zeitstempel auf SD-Karten speichern LoRaWAN, The Things Network und ThingSpeak LoRaWAN-Gateway für TTN betreiben Mega-Display mit Wettervorhersage

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Build your textbook weather station or conduct environmental research together with the whole world. With many practical projects for Arduino, Raspberry Pi, NodeMCU, ESP32, and other development boards. Weather stations have enjoyed great popularity for decades. Every current and even every long discontinued electronics magazine has regularly featured articles on building your own weather station. Over the years, they have become increasingly sophisticated and can now be fully integrated into an automated home — although this often requires loyalty to an (expensive) brand manufacturer across all components. With your own weather and environmental data, you can keep up and measure things that no commercial station can. It’s also fun: expand your knowledge of electronics, current microcontroller development boards and programming languages in a fun and meaningful way. For less than 10 euros you can get started and record your first environmental data — with time and growing interest, you will continue to expand your system. In this Edition Which Microcontroller Fits My Project? The Right Development Environment Tracking Wind and Weather Weather Display with OpenWeatherMap and Vacuum Fluorescent Display Volatile Organic Compounds in the Air We Breathe Working with MQ Sensors: Measuring Carbon Monoxide — Odorless but Toxic CO2 Traffic Light with ThingSpeak IoT Connection An Automatic Plant Watering System Good Indoor Climate: Temperature and Humidity are Important criteria Classy Thermometer with Vintage Tube Technology Nostalgic Weather House for the Whole Family Measuring Air Pressure and Temperature Accurately Sunburn Warning Device DIY Sensor for Sunshine Duration Simple Smartphone Says: Fog or Clear View? Identifying Earthquakes Liquid Level Measurement for Vessels and Reservoirs Water pH Value Measurement Detecting Radioactive Radiation GPS: Sensor Location Service Across the Globe Saving and Timestamping Log Files on SD Cards LoRaWAN, The Things Network, and ThingSpeak Operating a LoRaWAN Gateway for TTN Defying "Wind and Weather" Mega Display with Weather Forecasz

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NIEUWE LCR-METER 50 HZ – 2 MHZautomatische impedantiemeetbrug meet weerstand, capaciteit en zelfinductie van componenten met een impedantie van 10 mΩ tot 100 MΩ VAN DINGDONG-DEURBEL NAAR IOT-DEURBELintegreer uw deurbel in Home Assistant met ESPHome ACCUMANAGEMENTwaar u bij het gebruik van (lithium-)accu's op moet letten ALLE BEGIN......hoeft niet zo moeilijk te zijn WIE HET KLEINE NIET EERTuit de ideeënbus van Elektor BREADBOARDEN MET FRITZING ANALOGE ELEKTRONICA ONTWERPENcase-study #2 – deel 2: actieve filters OOST WEST LAB BESTeen blik in het allerheiligste, waar interessante projecten worden geboren DEVELOPER'S ZONEtips & trucs, vakkunstigheden en andere nuttige informatie REVIEW: RIGOL DS1054Z 4-KANAALS OSCILLOSCOOP KERSTKAARS...blaas 'm uit! CONTINU AFSTEMBARE BUIZEN-SINUSGENERATORretro is in... REVIEW: RIGOL DG2072 GOLFVORMGENERATOR KICAD PLUGINS EN ADD-ONS DIFFERENTIËLE STROOMPROBE 2.0 VOOR OSCILLOSCOPENstroom meten met de oscilloscoop DE HEWLETT-PACKARD INTERFACE LOOPverbind de wereld! DE TOEKOMST VAN MACHINE LEARNINGvraaggesprek met Daniel Situnayake MOBIELE APPS VOOR ANDROID EN IOStegelijk geprogrammeerd UIT HET LEVEN GEGREPENde clash tussen alfa, bèta en gamma 5G: HOE INFRASTRUCTUUR ONZE SAMENLEVING VORMT MULTITASKING MET DE ESP32 (5)task event-notificaties HP 10811-OSCILLATORvreemde onderdelen LORA GPS-TRACKERmet open hard- en software PROGRAMMEREN VAN DE EINDIGE-TOESTANDSMACHINEmet 8-bit PIC's in assembler en C HEXADOKU

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Practical Introduction to 3D Modeling from Enclosure to Front Panel Embedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination. Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies. In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos. Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly. Soon you will definitely not want to do without FreeCAD!

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Build your textbook weather station or conduct environmental research together with the whole world. With many practical projects for Arduino, Raspberry Pi, NodeMCU, ESP32, and other development boards. Weather stations have enjoyed great popularity for decades. Every current and even every long discontinued electronics magazine has regularly featured articles on building your own weather station. Over the years, they have become increasingly sophisticated and can now be fully integrated into an automated home — although this often requires loyalty to an (expensive) brand manufacturer across all components. With your own weather and environmental data, you can keep up and measure things that no commercial station can. It’s also fun: expand your knowledge of electronics, current microcontroller development boards and programming languages in a fun and meaningful way. For less than 10 euros you can get started and record your first environmental data — with time and growing interest, you will continue to expand your system. In this Edition Which Microcontroller Fits My Project? The Right Development Environment Tracking Wind and Weather Weather Display with OpenWeatherMap and Vacuum Fluorescent Display Volatile Organic Compounds in the Air We Breathe Working with MQ Sensors: Measuring Carbon Monoxide — Odorless but Toxic CO2 Traffic Light with ThingSpeak IoT Connection An Automatic Plant Watering System Good Indoor Climate: Temperature and Humidity are Important criteria Classy Thermometer with Vintage Tube Technology Nostalgic Weather House for the Whole Family Measuring Air Pressure and Temperature Accurately Sunburn Warning Device DIY Sensor for Sunshine Duration Simple Smartphone Says: Fog or Clear View? Identifying Earthquakes Liquid Level Measurement for Vessels and Reservoirs Water pH Value Measurement Detecting Radioactive Radiation GPS: Sensor Location Service Across the Globe Saving and Timestamping Log Files on SD Cards LoRaWAN, The Things Network, and ThingSpeak Operating a LoRaWAN Gateway for TTN Defying "Wind and Weather" Mega Display with Weather Forecasz

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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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Mein eigener RISC-V-ControllerErste Schritte mit dem NEORV32 RISC-V Softcore für preiswerte FPGAs Wie man den Seriellen Plotter der Arduino-IDE nutztEinfaches Plotten von Kurven mit Arduino CLUE - ein Clou von Adafruit?Angriff auf den micro:bit Puffer-Board für den Raspberry Pi 400Schützen Sie die I/Os! FrühjahrskollektionInteressante Raspberry Pi RP2040 Boards Ein DIY-Handbuch zu elektronischer Sicherheit und E-SpionageSRAM erhitzt oder tiefgefroren Identifizierung von BauteilenTipps & Tricks, Best Practices und andere nützliche Informationen Ein Touch-Schalter ohne TouchKonzeption und Umsetzung eines berührungslosen Lichtschalters Aller Anfang...ist gar nicht schwer: Anpassen und Transformieren Was gibt's Neues in der Embedded-Entwicklung?Rust und die Aktualisierung von IoT-Implementierungen Infografiken Elektor Industry Neue Wege für Industrie und Automobilbranche mit 5G DrehspulrelaisBemerkenswerte Bauteile Zutritt für Unbefugte verbotenAlles dreht sich um die Werkzeuge... Die Neuronen in neuronalen Netzen verstehenTeil 4: Eingebettete Neuronen Magnetische Levitation auf die sehr sehr einfache ArtDie dritte und kompakteste Version SPS-Programmierung mit dem Raspberry Pi und dem OpenPLC-ProjektVisualisierung von SPS-Programmen mit AdvancedHMI Aus dem Leben gegriffenEinpacken und weg damit Unter dem RadarUnbekannte Mikrocontroller, über die Sie Bescheid wissen sollten Drahtloses Monitoring und DebuggenSerielle Funk-Schnittstelle für Arduino, ESP32 und Co. Tragbares Temperatur- und FeuchtemessgerätGebaut mit vorgefertigten Modulen Lithium-Akkus reparierenGeld sparen + mehr Power! GUIs mit PythonMeme-Generator Die drei FragezeichenWarum? Was? Wer? Hexadoku

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4x4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Learn to program displays and GUIs with Python This book is about Raspberry Pi 4 display projects. The book starts by explaining how to install the latest Raspbian operating system on an SD card, and how to configure and use the GPIO ports. The core of the book explains the following topics in simple terms with fully tested and working example projects: Simple LED projects Bar graph LED projects Matrix LED projects Bitmap LED projects LED strips LCDs OLED displays E-paper displays TFT displays 7-inch touch screen GUI Programming with Tkinder One unique feature of this book is that it covers almost all types of display that readers will need to use in their Raspberry Pi based projects. The operation of each project is fully given, including block diagrams, circuit diagrams, and commented full program listings. It is therefore an easy task to convert the given projects to run on other popular platforms, such as Arduino or PIC microcontrollers. Python program listings of all Raspberry Pi projects developed in this book are available for download at Elektor.com. Readers can use these programs in their projects. Alternatively, they can modify the programs to suit their applications.

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A Fast-Lane Ride From Concept to Project The core of the book explains the use of the Raspberry Pi Zero 2 W running the Python programming language, always in simple terms and backed by many tested and working example projects. On part of the reader, familiarity with the Python programming language and some experience with one of the Raspberry Pi computers will prove helpful. Although previous electronics experience is not required, some knowledge of basic electronics is beneficial, especially when venturing out to modify the projects for your own applications. Over 30 tested and working hardware-based projects are given in the book, covering the use of Wi-Fi, communication with smartphones and with a Raspberry Pi Pico W computer. Additionally, there are Bluetooth projects including elementary communication with smartphones and with the popular Arduino Uno. Both Wi-Fi and Bluetooth are key features of the Raspberry Pi Zero 2 W. Some of the topics covered in the book are: Raspberry Pi OS installation on an SD card Python program creation and execution on the Raspberry Pi Zero 2 W Software-only examples of Python running on the Raspberry Pi Zero 2 W Hardware-based projects including LCD and Sense HAT interfacing UDP and TCP Wi-Fi based projects for smartphone communication UDP-based project for Raspberry Pi Pico W communication Flask-based webserver project Cloud storage of captured temperature, humidity, and pressure data TFT projects Node-RED projects Interfacing to Alexa MQTT projects Bluetooth-based projects for smartphone and Arduino Uno communications

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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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