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Build Smart Applications with Raspberry Pi, Arduino, and ESP32 Discover how easy and exciting mobile app development can be with MIT App Inventor. This hands-on guide takes you from basic concepts to building real-world mobile applications using a simple visual programming approach—no prior coding experience required. You will create IoT and AI-powered apps for Android devices and explore how App Inventor can also be used with iPhones and iPads. Connect your applications to platforms such as Arduino UNO R4 WiFi, ESP32, Raspberry Pi Pico (2)W and Raspberry Pi 5, enabling you to build smart, connected systems. Inside the book, you will learn how to: Build interactive apps using buttons, images, sound, and multimedia Create text-to-speech and speech-recognition applications Develop camera-based and location-aware (GPS) apps Design useful tools such as calculators and educational apps Work with smartphone sensors like accelerometers and light sensors Build AI-powered applications, including voice assistants and image-generation features Send and receive messages, and create communication-based apps Connect mobile apps to hardware using Wi-Fi and Bluetooth Control real devices such as LEDs, motors, and sensors Designed for beginners, students, and hobbyists, this book focuses on learning by doing. By the end, you will have the skills and confidence to create your own innovative applications that interact with both the digital and physical worlds. Start building and turning your ideas into reality.

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Le ZD-8965 est une station de dessoudage numérique à température contrôlée équipée d'une protection de mise à la terre et d'un écran LCD pour l'affichage de la température. Sa conception, à la fois compacte et robuste, rend cette station de dessoudage haute performance facile à manipuler d'une seule main. Le ZD-8965 est doté d'un pistolet à souder avec un filtre intégré qui capture tout matériau extrait, permettant un fonctionnement continu en remplaçant simplement les filtres. De plus, un capteur de température est intégré dans la pointe, permettant une réponse rapide aux fluctuations de température pour des performances constantes. Caractéristiques Réglez facilement la température entre 160°C et 480°C à l'aide des boutons haut/bas pratiques sur le panneau avant. Affichage LED pour indiquer la température en °C/°F Comprend une poignée pistolet ergonomique avec une gâchette pour une élimination rapide et efficace des déchets de soudure. Le pistolet à souder amélioré comprend une gâchette arrière, ce qui le rend exceptionnellement pratique pour remplacer et nettoyer les composants. Livré avec un pistolet à souder de haute qualité et un support robuste. Équipé d'un chauffage robuste qui garantit des performances de dessoudage optimales à chaque fois. Spécifications Station Alimentation en tension 220-240 V Puissance 140 W Pression sous vide 600 mm HG Pistolet à dessouder Puissance 140 W (18 V DC)Indice de chauffe : 140 W Température 160-480°C Élément chauffant Chauffage en céramique Inclus 1x ZD-8965 Station de dessoudage 2x Pannes à souder de rechange 3x Aiguilles de nettoyage pour pannes à dessouder 3x Filtre de rechange pour pistolet à dessouder 1x Filtre de rechange pour station de dessoudage 1x Manuel

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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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DIY LiPo Supercharger KitFrom Handcrafted to Mass Market Elektor @ 60Reflections on Six Decades of Electronics Siglent Bench Multimeter SDM3045X DC Current-Sense ClampHall Sensor + Ferrite Core + Arduino Soldering Station 2021Easy to build! Hands On the Parallax Propeller 2Part 2: The Development Environment and Code Wi-Fi for LoRa SwitchIntegrated in Home Assistant with ESPHome Do Not Fear the Cellular Module! Tracking Time with ESP32 and TogglWorking with the M5Stack Get to Know the Raspberry Pi Pico Board and RP2040 MicroPython for MicrocontrollersSmall-Format Screens 12-to-200-V DC/DC Converter for Valve Amplifiers Heat SeekerThe Seek Shot Pro Thermal Imaging Camera Object-Oriented Programming: A Short Primer Using C++ HomeLab ToursHome Lab and an Analogue Synthesiser by Kurt Diedrich Java on the Raspberry PiPart 1: GPIOs DIP SwitchesPeculiar Parts, the series Project 2.0Corrections, Updates and Readers’ Letters Whose Product Is It Anyway?Right to Repair Gains Momentum From Life's ExperienceThe Great Book of Blunders Micro-ProfessorLearning Assembly Language on a Z80 Starting out in ElectronicsEasier Than Imagined! Even When It Is About Capacitors HexadokuThe Original Elektorized Sudoku

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There are many so-called 'Arduino compatible' platforms on the market. The ESP8266 – in the form of the WeMos D1 Mini Pro – is one that really stands out. This device includes WiFi Internet access and the option of a flash file system using up to 16 MB of external flash memory. Furthermore, there are ample in/output pins (though only one analogue input), PWM, I²C, and one-wire. Needless to say, you are easily able to construct many small IoT devices! This book contains the following builds: A colourful smart home accessory refrigerator controller 230 V power monitor door lock monitor and some further spin-off devices. All builds are documented together with relevant background information for further study. For your convenience, there is a small PCB for most of the designs; you can also use a perf board. You don’t need to be an expert but the minimum recommended essentials include basic experience with a PC, software, and hardware, including the ability to surf the Internet and assemble PCBs. And of course: A handle was kept on development costs. All custom software for the IoT devices and PCB layouts are available for free download from at Elektor.com.

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L'oscilloscope USB 2 voies OWON VDS1022I (25 MHz) est un oscilloscope à utiliser avec un ordinateur. Il est alimenté par USB et a une petite taille, ce qui permet de l'emporter facilement avec soi. L'oscilloscope est très économique. Il dispose d'une connexion USB blindée, ce qui réduit les interférences et protège l'ordinateur contre les surtensions. Le port multiple de l'oscilloscope peut être utilisé pour le déclenchement externe, la sortie de déclenchement ou la sortie Pass / Fail. Caractéristiques Largeur de bande de 25 MHz, et taux d'échantillonnage en temps réel de 1 Géch/s maximum Longueur d'enregistrement de 10 Méch Interface utilisateur conviviale : FFT, ou X-Y, et forme d'onde 2 vues affichées sur le même écran Option de déclenchement multiple : front, vidéo, pente, impulsion et alternatif. Isolation USB - moins d'interférence de signal, plus de protection du PC Alimentation par bus USB et télécommande LAN (en option) Conception ultra-mince, facile à transporter Spécifications Bande passante 25 MHz 25 MHz Canal 2+1 (multi) Fréquence d'échantillonnage 100 Méch/s Échelle horizontale (s/div) 5 ns/div～100s/div, step by 1～2～5 Longueur des enregistrements 5K Tension d'entrée maximale 400 V (PK - PK) (DC+AC, PK - PK) 40 V (PK - PK) (DC+AC, PK - PK) Résolution verticale (A/D) 8 bits (2 canaux simultanément) Modèle VDS1022I Sensibilité verticale 5 mV/div～5 V/div Type de déclenchement Bord, impulsion, vidéo, pente et alternance Mode de déclenchement Auto, Normal, et Simple Mode d’acquisition Échantillon, détection des pics et moyenne Mathématiques ＋, －, ×, ÷, invert, FFT Interface de communication USB 2.0 (isolation) Multi-fonctions   Interface Type de signal Niveau Standard TTL Alimentation éléctique 5,0 V/1 A Consommation éléctique ≤2,5 W Dimensions (W × H × D) 170 x 120 x 18 mm Poids 0,26 kg Inclus 1x Oscilloscope OWON VDS1022I 1x CD-ROM 1x Guide de démarrage rapide 2x Sonde d'oscilloscope 1x Outil de sonde 1x Adaptateur secteur 1x Câble USB 1x Étui de protection en silicone 1x Câble d'alimentation Téléchargements Fiche technique Manuel de l’utilisateur Protocole SCPI Pilote USB

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Rotary Dial Phone as Remote ControlTo Switch On the Lights, Dial 1; For the Coffee Maker, Dial 2 GPS-Based Speed MonitorNo More Speeding Tickets RGB Stroboscope with ArduinoA Colorful Adaptation of a Useful Instrument Wireless Emergency Push ButtonEnhanced Safety with LoRa Starting Out in ElectronicsFollow the Emitter Arbitrary, Independent Hysteresis Levels for Comparatorswith Simulations, Spreadsheets and Algebra ESP32-Based Impedance AnalyzerSimple, Low-Part-Count, and Inexpensive! HomeLab ToursEncouraging DIY The MCCAB Arduino Nano Training BoardAll-in-One Hardware for the “Microcontrollers Hands-On Course” From Life’s ExperienceModern Luddism Sensor 101: The DS18B20 Temperature SensorConnection to the 1-Wire Bus Is Matter the Thread to Save the Smart Home?New Standards to Simplify the Smart Home A Matter of CollaborationDeveloping with the Thing Plus Matter Board and Simplicity Studio Infographics: IoT and Sensors Matter, ExpressLink, Rainmaker — What Is This All About?Q&A with Amey Inamdar, Technical Marketing Director at Espressif Selecting Microcontroller Dev Kits for IoT and IIoT ApplicationsAn Introductory Guide Capacitors Do Not Always Behave Capacitively! An NTP Clock with CircuitPythonWhy Should You Use This Programming Language? Build a Cool IoT DisplayWith the Phambili Newt The HB100 Doppler Motion SensorTheory and Practice A Bare-Metal Programming Guide (Part 1)For STM32 and Other Controllers Siglent SDM3045X Multimeter Microprocessors for Embedded SystemsPeculiar Parts, the Series Microcontroller Documentation Explained (Part 3)Block Diagrams and More Low-Power LoRa Weather StationBuild a long-range weather station by yourself Transverter for the 70 cm Band Climate Calling EngineersMove Fast and Fix Things Hexadoku

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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. carte de développement MultiRFUne plateforme pour évaluer les protocoles sans fil à courte et longue portée Elektor fête ses 65 ansAu cœur de l'électronique depuis 1961 détection de personnes par Wifi sur un ESP32Quand votre routeur devient un capteur de mouvement balances sans filQuatre petites balances = une grande balance Walter, le module IoT compactSoC ESP32-S3, modem 5G LTE-M/NB-IoT et récepteur GNSS conditionnement des capteurs RTD à 3 et 4 filsAvec ajustement d’échelle et compensation des câbles oscilloscope/générateur/multimètre à 2 voies 3-en-1Revue du Fnirsi 2D15P electronica Fast Forward 2026 ouvre ses candidatures aux startups et partenaires industriels EcologgingUne station IoT environnementale modulaire pour la recherche de terrain la connectivité sans fil dans les applications médicalesAu rythme du pouls avec le Bluetooth LE audiotroniqueRéduction du ronflement optimiser les rendements agricoles grâce à la modélisation par IA et aux capteursAméliorer la productivité agricole OPC UA : un aperçuÉchange de données indépendant des plateformes redox-mètre amplificateur d’instrumentation pour expériences de physique et d’ingénierie filtres audio actifs différentielsPour les crossovers et plus encore perspectives de la communauté Elektor sur l’IdO et les capteurs module d’interface pour chauffe-eau piloté via TelegramUne solution basée sur un ESP32 et Arduino 2026 : une odyssée de l'IALa logique floue a-t-elle disparu ? projet 2.0 injecteur de signal d’alarme plus secteuroutils pour localiser les coupures de fil

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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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Goedkope audiotestermet PC-gebaseerde software en een USB-audio-interface AC-netfrequentiemeterbewaakt netfrequentie en -spanning Een kleine inductiemeterbetaalbare oplossing voor de werkbank Zweven op geluidsgolvende Makerfabs Acoustic Levitation Kit nader bekeken Alle begin......gaat gelijkrichten FFWD: de blik weer naar voren! Aan de slag met je oscilloscoopzo gebruik je de knoppen en schakelaars Een MSF-SDR met de Raspberry Pi Picodecodeer het tijdsignaal met een Pi Pico-SDR Bodemvochtsensoren voor beregeningssystemenautomatische beregening Onrust op de markt voor test- en meetapparatuurkleine spelers innoveren Elektor Infographics Inspiratie, daar draait het omInterview met Ondernemer Walter Arkesteijn, InnoFaith Beauty Sciences EMC-storingen door opslagspoelen minimaliseren GUI’s maken met Python:Boter-kaas-en-eieren Jeroen en Jan blijven pionieren Eenvoudige analoge ESR-metermet draaispoelmeter-precisie Sigfox CO2-stoplichtzonder WiFi-netwerk! Vrouwen in de techniek“Het gaat allemaal om verdienste tot verdienste tieten heeft” Low-budget tablet-oscilloscoop ADS1013Dwaar voor je geld? Anatomie van smart plugsWelke zijn hacker-vriendelijk? Huidimpedantie en huidcapaciteitexperimenteel onderzocht Uit het leven gegrepenGeen sant in eigen land De Pokit Meter bekekeneen Zwitsers zakmes onder de meetinstrumenten HexadokuPuzzelen voor elektronici

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Affordable solutions with the ESP8266 and 3D printing If you are looking for a small yet powerful IoT device, you are likely to come across the ESP8266 and compatible products on the market today. One of these, the Wemos/Lolin D1 Mini Pro board strikes a remarkable balance between cost and performance. A small and very affordable prototype board, the D1 Mini Pro stands out with its WiFi functionality and a 16-Mbytes flash memory for easy creation of a flash file system. In addition, there are sufficient input and output pins (only one analog input though) to support PWM, I²C, and One-Wire systems to mention but a few. The book describes the operation, modding, construction, and programming of home appliances including a colorful smart home accessory, a refrigerator/greenhouse controller, an AC powerline monitor, a door lock monitor, and an IKEA Trådfri controller. As a benefit, all firmware developed for these DIY, "IoT-ized" devices can be updated over-the-air (OTA). For most of the designs in the book, a small printed circuit board (PCB) and an enclosure are presented so readers can have a finished and attractive-looking product. Readers having – or with access to! – a 3D printer can "print" the suggested enclosures at home or in a shop. Some of the constructions benefit from a Raspberry Pi configured as a gateway or cms server. This is also described in detail with all the necessary configuring. You don’t need to be an expert but the prerequisites to successful replication of the projects include basic skills with PC software including the ability to surf the Internet. In terms of hardware, you should be comfortable with soldering and generally assembling the PCBs presented in the book. All custom software written for the IoT devices, the PCB layouts, and 3D print files described in the book are available for free downloading.

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Umfassendes Buch-Hardware-Bundle für den RP2040-Mikrocontroller mit über 80 Projekten Entdecken Sie in diesem Bundle das Potenzial der modernen Controller-Technologie mit dem Raspberry Pi Pico. Das leicht verständliche Handbuch eignet sich sowohl für Anfänger als auch für erfahrene Benutzer und führt Sie von den Grundlagen der Elektronik bis hin zu den komplexen Aspekten der digitalen Signalverarbeitung. Mit dem Raspberry Pi Pico, dem speziellen Hardware-Kit und der MicroPython-Programmierung lernen Sie die wichtigsten Prinzipien des Schaltungsdesigns, der Datenerfassung und -verarbeitung. Machen Sie praktische Erfahrungen mit über 80 Projekten wie einer Stoppuhr mit OLED-Display, einem Laser-Entfernungsmesser und einem servogesteuerten Lüfter. Diese Projekte sollen Ihnen helfen, das Gelernte in realen Szenarien anzuwenden. Das Buch behandelt auch fortgeschrittene Themen wie drahtlose RFID-Technologie, Objekterkennung und Sensorintegration für die Robotik. Ganz gleich, ob Sie Ihre Kenntnisse in der Elektronik erweitern oder tiefer in eingebettete Systeme eintauchen möchten, dieses Bundle ist die perfekte Ressource, um das volle Potenzial des Raspberry Pi Pico zu erkunden. Inhalt des Bundles 1x Projektbuch (287 Seiten) 1x Smart Car Kit Bauteile 2x Lötfreies Steckbrett (400 Löcher) 1x Lötfreies Steckbrett (170 Löcher) 5x bunte 5-mm-LEDs (Grün, Rot, Blau, Gelb und Weiß) 1x Lasersender 1x Passiver Summer 1x Micro-USB-Kabel (30 cm) 1x 65 Überbrückungskabel 1x 20 cm männlicher auf weiblicher Dupont-Draht 1x Transparentes Gehäuse 1x Magnet (Durchmesser: 8 mm, Dicke: 5 mm) 1x Drehpotentiometer 10x 2 KΩ Widerstände 2x M2, 5x30 mm Kupfersäulen 10x Kreuzschlitz-Flachkopfschrauben 10x M2,5 Sechskantmuttern aus Nickel 1x 2-Zoll-Mehrzweckschraubendreher Module 1x RGB-Modul 1x 9G-Servo 1x Dual-Achsen-XY-Joystick-Modul 1x RC522 RFID-Modul 1x 4-Bit-Digital-LED-Display-Modul 1x Ampel-Anzeigemodul 1x Drehgebermodul 1x 1602 LCD-Anzeigemodul (blau) 1x Fotowiderstandsmodul 1x Gleichstrommotor mit männlichem Dupont-Kabel 1x Lüfterflügel 1x Regentropfen-Modul 1x OLED-Modul 1x Membranschalter-Tastatur 1x Mini-Magnetfedermodul 1x Infrarot-Fernbedienung 1x Infrarot-Empfängermodul 1x DC-Schrittmotor-Treiberplatine 1x Button Sensoren 1x Vibrationssensor 1x Bodenfeuchtesensor 1x Schallsensor 1x Mini-PIR-Bewegungssensor 1x Temperatur & Feuchtigkeitssensor 1x Flammensensor 2x Crash-Sensor 2x Tracking-Sensor 1x Ultraschallsensor

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