Search results for "portable or smart or wifi or weather or station"

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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Maîtrise de la puce RP2040 avec plus de 60 projets à réaliser et à programmer Les cartes Raspberry Pi Pico et Pico W sont animées par un microcontrôleur ARM Cortex M0+ RP2040 à double coeur, rapide, efficace et peu coûteux, qui fonctionne jusqu'à 133 MHz et dispose de 264 Ko de SRAM et de 2 Mo de mémoire Flash. Outre une vaste mémoire, le Pico et le Pico W disposent de nombreuses broches GPIO et d'interfaces telles que CA/N, SPI, I²C, UART, MLI, de fonctions de temporisation, d'une interface de débogage matériel et d'un capteur de température interne. La carte Raspberry Pi Pico W comporte en plus une puce CYW43439 Bluetooth et Wi-Fi d'Infineon. Au moment de la rédaction de ce livre, le micrologiciel Bluetooth pour le Pico W n'était pas encore disponible. Le Wi-Fi à 2,4 GHz est toutefois entièrement pris en charge avec les protocoles 802.11b/g/n. Ce livre est une introduction à l'utilisation du Raspberry Pi Pico W avec le langage de programmation MicroPython. Les quelque soixante projets testés et opérationnels sont présentés à l'aide de l'environnement de développement intégré (EDI) Thonny. Les sujets abordés sont nombreux : Installation de MicroPython sur le Raspberry Pi Pico depuis un PC Interruptions de l'horloge et interruptions externes Convertisseur analogique-numérique (CA/N) Capteurs de température interne et externe Capteurs externes (pression, humidité, pouls, à ultrasons) Enregistrement de données MLI, UART, I²C et SPI Bluetooth, Wi-Fi et applis sur smarphone Convertisseur numérique-analogique (CN/A) Tous les projets ont été testés et éprouvés. Ils peuvent être mis en oeuvre sur le Raspberry Pi Pico ainsi que sur le Raspberry Pi Pico W. Toutefois les projets avec une liaison Wi-Fi ne fonctionnent que sur le Pico W. Une petite expérience en programmation et en électronique est nécessaire pour suivre les projets. De brèves descriptions, des schémas fonctionnels, des schémas détaillés du câblage des montages et des listings MicroPython complets sont fournis pour tous les projets.

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IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 2)Image Recognition Using Edge Impulse ELEKTOR JUMPSTARTER NEWSUpcoming Campaigns AN OPEN-SOURCE GPS TRACKING PLATFORMTraccar Maps Vehicle Tracking Without the Need for a Third-Party Cloud Server JOY-IT LCR-T7 MULTI-FUNCTION TESTERTesting Passives, Discrete Semiconductors and IR Remote Controls NOISE SYNTHESIZERFrom Noise to Music with the PRBSynth1 STARTING OUT IN ELECTRONICSEasier than Imagined! ... Continuing with the Coil UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 2)Logical Neurons ISSUES WITH SECURITY? FIGHT FIRE WITH FIRE!Flashbulb-Protected Analogue Memory Add-on For the Tamper-Evident Box LCR METER POSTER BLUETOOTH BEACONS IN PRACTICEBeacons Light the Way Ahead C PROGRAMMING ON RASPBERRY PICommunicating over Wi-Fi (Sample Chapter) EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 2)The Hardware and How to Use It HANDS ON THE PARALLAX PROPELLER 2 (PART 5)Inside the Smart Pin MODBUS OVER WLAN (PART 1)Hardware and Programming HOMELAB TOURSWhere the Junior Computer Is Brought to Life Again BUILD YOUR OWN HIGH-PRECISION CALIBRATOR-10 V to +10 V, 0 to 40 mA, 0.001% ARDUINO NANO RP2040 CONNECTRaspberry Pi RP2040 + Wi-Fi + Bluetooth THE PHYSICAL BODY OF ARTIFICIAL INTELLIGENCE ERR-LECTRONICSCorrections, Updates and Readers’ Letters CREATE GUIS WITH PYTHONIntroducing guizero CO2 METER KIT FOR THE CLASSROOMAn ESP8266-Based Device from the University of Applied Sciences Aachen NOSTALGIC MK484 MW/LW RADIO...Always Fun to Build! ELEKTOR @ 60Let There Be Light! HEXADOKUThe Original Elektorized Sudoku

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ELEKTOR AIDE L'électronique dans des temps difficiles AFFICHAGE D'INFORMATION POUR LA MAISON avec Windows sur le Raspberry Pi DÉMARRER AVEC NODE-RED un outil de programmation open source basé sur des blocs visuels LA tombola d'ÉTÉ d'ELEKTOR GREATSCOTT ! CONSTRUIRE UN SYSTÈME D'ALARME LORA REVUE : ALIMENTATION DE LABORATOIRE JOY-IT RD6006 (KIT) REVUE : INTERFACEBOARD GREATFET ONE QUI N'HONNE PAS LES PETITS – XXL de la boîte à suggestions d'Elektor ANTENNE WIFI EXTERNE 2,4 GHZ POORLUIS CONTRÔLE FACILE DE LA TEMPÉRATURE MARCHE/ARRÊT AVEC CHAPEAU RASPBERRY PI COMMENT PRENDRE DE (BONNES) PHOTOS DÈS L'IMPRESSION... ...et les composants électroniques ? REVUE : NOYAU I2CDRIVER ÉCRAN TACTILE JOY-VIEW 13 DE JOY-IT BOOSTER LED POUR MICROCONTRÔLEURS avec un seul composant ! MACHINE À LAVER À ULTRASONS EXPÉRIMENTALE REVUE : GÉNÉRATEUR DE SIGNAUX JOY-IT JDS2915 générateur de signaux doubles avec compteur de fréquence dans un boîtier métallique PROGRAMMATION DES FEUX DE SIGNALISATION EN LANGAGE PIC ASSEMBLY LED CLIGNOTANT PERMANENT CAPTEUR DE HALL EXPÉRIMENTAL DÉTECTER LES COURT-CIRCUITS AVEC UN MILLIOHM OU ESR MÈTRE KIT PRATIQUE ÉLECTRIQUE SDR PIPELINE DE LABORATOIRES ÉLECTRIQUES KICK-STARTER ÉLECTRIQUE ....eh bien, vous voyez ce que nous voulons dire. AVEZ-VOUS VRAIMENT BESOIN DE TOUT ÇA ??? ici, je passe de nombreuses heures sur des projets électroniques... LABORATOIRE EST OUEST MEILLEUR un aperçu du plus saint des saints, où naissent des projets intéressants BONJOUR LE MONDE! NOUS SOMMES ELEKTOR ET NOUS SOMMES SOCIAUX M4 + A7 + GPU : UNE ÉQUIPE DE RÊVE INÉGALE le nouveau SoC STM32MP1 pour les travaux plus lourds CONFIGURATION DE TEST POUR LE 16F18877 ET AUTRES GRANDES PHOTOS COMMUNICATION INTER-ΜC AVEC LE BUS SPI ET ATMEGA328P SIX VARIANTES DE L'OSCILLATEUR LF/AF (et la capacité de M. Miller) BBC MICRO:BIT oscilloscope absolument minimaliste avec affichage LED FEU DE RUNNING À LED 'KNIGHT RIDER' AVEC ESP32 GÉNÉRATEUR DE SIGNAUX AM LW/MW AVEC ATTINY13 DIPMÈTRE ABSOLUMENT MINIMALISTE SCOOTERS ÉLECTRIQUES BON MARCHÉ quelle est la qualité d'un scooter électrique « homologué » à 300 euros de Lidl ? AIDE AU STATIONNEMENT À ULTRASONS AVEC ARDUINO UNO PÉDALE DE DISTORSION AVEC AMPLI OP ET TUBES DE CHARGE SPATIALE INDISPENSABLE POUR CHAQUE LABORATOIRE D'ÉLECTRONIQUE HEXADOKU IA POUR DÉBUTANTS (2) réseaux de neurones avec Linux et Python

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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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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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LoRaWAN, Sigfox, NB-IoT & LTE-M Compared The Internet of Things depends on a critical question. How do you connect devices that must operate for years on tiny batteries, often miles from the nearest power outlet? This Elektor Technical Brief provides a practical guide to the technologies that have become the backbone of long-range, low-power IoT connectivity. Compiled by the Elektor Content Team, this concise technical brief examines the real engineering tradeoffs behind today’s leading Low-Power Wide-Area Network (LPWAN) technologies: LoRaWAN, Sigfox, NB-IoT, and LTE-M. By referencing a wide range of Elektor articles and other online content, this document explains why link budget, noise, bandwidth, and power consumption ultimately determine system performance. From there, it explores the architectures, strengths, limitations, and deployment realities of each major LPWAN technology, helping you understand not just how they work, but when and why to use them. Whether you’re designing smart meters, industrial sensors, agricultural monitoring systems, asset trackers, or connected infrastructure, this guide provides the insights needed to make informed connectivity decisions. Along the way, you’ll discover: Why LPWAN technologies emerged and where they fit in the IoT landscape The RF fundamentals that drive range, reliability, and battery life Details about LoRaWAN, Sigfox, NB-IoT, and LTE-M Practical comparisons of power, coverage, latency, cost, and deployment models Guidance for selecting the right LPWAN technology for your application Emerging trends shaping the future of long-range IoT connectivity Clear, accessible, and grounded in real engineering practice, this Technical Brief helps you move beyond specifications and marketing claims to understand what matters most. If you’re building connected products that need to survive in the field — not just in the lab — this is the LPWAN guide you’ll want at your side. Elektor helped launch the first wave of electronics makers in 1961. Since then, our global community has grown by hundreds of thousands of active members (comprising professional engineers, makers, and students) and more than 500 contributing experts. Every day, we inspire members to design and earn money with electronics.

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Program, build, and master 60+ projects with the Wireless RP2040 The Raspberry Pi Pico and Pico W are based on the fast, efficient, and low-cost dual-core ARM Cortex M0+ RP2040 microcontroller chip running at up to 133 MHz and sporting 264 KB of SRAM and 2 MB of Flash memory. Besides spacious memory, the Pico and Pico W offer many GPIO pins, and popular peripheral interface modules like ADC, SPI, I²C, UART, PWM, timing modules, a hardware debug interface, and an internal temperature sensor. The Raspberry Pi Pico W additionally includes an on-board Infineon CYW43439 Bluetooth and Wi-Fi chipset. At the time of writing this book, the Bluetooth firmware was not yet available. Wi-Fi is however fully supported at 2.4 GHz using the 802.11b/g/n protocols. This book is an introduction to using the Raspberry Pi Pico W in conjunction with the MicroPython programming language. The Thonny development environment (IDE) is used in all of the 60+ working and tested projects covering the following topics: Installing the MicroPython on Raspberry Pi Pico using a Raspberry Pi or a PC Timer interrupts and external interrupts Analogue-to-digital converter (ADC) projects Using the internal temperature sensor and external sensor chips Using the internal temperature sensor and external temperature sensor chips Datalogging projects PWM, UART, I²C, and SPI projects Using Bluetooth, WiFi, and apps to communicate with smartphones Digital-to-analogue converter (DAC) projects All projects are tried & tested. They can be implemented on both the Raspberry Pi Pico and Raspberry Pi Pico W, although the Wi-Fi-based subjects will run on the Pico W only. Basic programming and electronics experience are required to follow the projects. Brief descriptions, block diagrams, detailed circuit diagrams, and full MicroPython program listings are given for all projects.

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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 émetteur-récepteur audio ESP32 (2)Transmission audio sans fil émetteur AM par inductionUtiliser les PIO du Pico dans un croquis Arduino les protocoles sans filUn guide technique suivi de satellites avec LoRaTinyGS, le réseau open source qui capte les données spatiales télécommande par sms compatible 4GContrôlez votre équipement à distance sonde haute vitesseMesure à haute impédance jusqu’à 200 MHz sur le vifKafka KrakenSDR tests de performance avec le RP2350Pico 2 : une vraie amélioration ? mesures de champ électrique sans contact (2)Un vibromètre laser pour l’analyse des vibrations de la membrane quartz et oscillateursAméliorer la précision des quartz grâce au choix des condensateurs démarrer en électroniqueCI audio originaux se lancer dans le codage d'un projet DIY SPECTRAN® V6 MobileAnalyseur de spectre temps réel modulaire et configurable pour des mesures fiables sur l’ensemble des plages de fréquences l’avenir de l’IA repose sur le siliciumEntretien avec Anastasiia Nosova nœud de capteurs autonome v2.0 (architecture du système)Plateforme de mesure autonome alimentée par énergie solaire, avec GPS intégré, LoRaWAN et plus encore positionnement précisTests du sondage de canal Bluetooth développement logiciel piloté par les tests voiture miniature contrôlée par SmartphoneWi-Fi + ESP32 + Smartphone = contrôle à distance 2025 : une odyssée de l’IAModèles de raisonnement en IA : la révolution de la chaîne de pensée contrôleur de charge solaire avec MPPT (3)Logiciel et mise en service caméra Web Raspberry Pi ZeroStreaming avec VPN ZeroTier

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The Seeed Studio RF Explorer WSUB1G+ is a powerful, high-performance digital spectrum analyzer covering frequencies from 50 kHz to 1 GHz. The Slim model features a robust design, a more conveniently positioned USB connector on the side, and a larger internal battery capacity. Features Internal LNA amplifier and selectable attenuator Low frequency support from 50 KHz covering LF, MF, HF, VHF and UHF up to 960 Mhz New HELP and SET buttons to improve user interface and configuration selection with 2-clicks Wide band coverage to all popular sub-1 Ghz bands, including FM, TV and DTV, ISM, RFID, GSM, etc. Ideal choice for HAM bands from 160 m to 33 cm Pocket size and light weight Solid metal case Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes High capacity internal Lithium battery for 20hs+ of continuous run, rechargeable by USB Multi-platform Windows/Linux/MacOS Open Source software and API libraries Can be extended with internal Expansion Modules for additional band and functionality Specifications Frequency band: 0.05 MHz – 960 MHz Frequency span: 0.1 MHz – 960 MHz Internal selectable LNA 25 dB gain Internal selectable Attenuator 30 dB Graphics LCD 128 x 64 pixels, great visibility outdoors Support included for Windows, Linux and MacOS X Backlight for great visibility indoor Internal Lithium Ion 1800 mA/h rechargeable battery Standard SMA 50 Ω connector Wideband 144/433 MHz dual band telescopic antenna included UHF 400-900 MHz rubber duck articulated antenna included Amplitude resolution: 0.5 dBm Dynamic range: -125 dBm to 10 dBm Absolute Max input power: +30 dBm Average noise level (typical LNA): -125 dBm Frequency stability and accuracy (typical): ±10 ppm Amplitude stability and accuracy (typical): ±2 dBm Frequency resolution: 1 kHz Resolution bandwidth (RBW): Automatic 2.6 kHz to 600 kHz Included 1x Seeed Studio RF Explorer WSUB1G+ Slim Spectrum Analyzer 1x Mini USB cable 1x Dual band 144/430 MHz Telescopic antenna 1x UHF 400-900 Mhz antenna 1x EVA case

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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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Una ricca selezione di articoli dal Mondo Elektor! Gli articoli di questo libro sono una selezione accurata, il "meglio del meglio" di circuiti e progetti recenti, realizzati da tecnici di grande talento provenienti da tutto il mondo. Nel tipico stile di Elektor, questa raccolta offre qualcosa di interessante per tutti, dai progettisti esperti a coloro che praticano l'elettronica nel tempo libero. Sommario Super Servo TesterProva Fino a Quattro Servocomandi, Stand-Alone o in Sistema The TubeUn Insolito Amplificatore a Valvole Cloc 2.0La Sveglia che Avete Sempre Desiderato Stazione Meteo LoRa Low-PowerCostruitevi una Stazione Meteorologica “Long Range” Uscita Video con Microcontrollori (Parte 1)Video Composito Uscita Video con Microcontrollori (Parte 2)Uscita VGA e DVI Un Raspberry Pi Pico come Analizzatore di SpettroFFT su Base Hardware a Basso Costo PIC O’Clock – In Contatto col TempoProgettare un Ricevitore di Segnali Orari SDR Frequenzimetro di Rete ACMisura Frequenza e Tensione della Rete Elettrica Generatore di Funzioni con Arduino NanoNano + Codice = Generatore di Funzioni Monitor CO2Un Approccio Fai-Da-Te per Il Controllo della Qualità dell‘Aria ChatMagLevLa Levitazione Magnetica con AI Alimentatore Lineare Variabile Combinato0…50 V / 0…2 A con Struttura Simmetrica Duale Ricevitore Digitale FM con Arduino e TEA5767Restate in Ascolto con un Arduino Nano Protezione Antigelo per Piante da FruttoCon Registrazione della Temperatura Carico Elettronico con Generatore di clock IntegratoPer Collaudare Alimentatori, Convertitori di Tensione e Batterie 128 Termostato Web con ESP32Mantieni il Vino alla Giusta Temperatura Iniezione di Segnali e di Potenza......per Rilevare le Interruzioni nei Cavi DIY LiPo Supercharger KitDal Prototipo al Mercato di Massa Livella Digitale con Stroboscopio AttivoCalibra il Tuo giradischi con Questo Strumento "Tutto-in-Uno" The Game of Life – 262.144 Modi di GiocareDal Progetto di un Lettore Rilevatore di PerditeCollegato ad Arduino Cloud Orologio di LissajousL’Incedere del Tempo con le Figure di Lissajous Mastermind – Controllato da ArduinoUna Versione Moderna del Classico Gioco di Decifrazione Generatore Audio Analogico 1 kHzOnda Sinusoidale a Bassa Distorsione Aggiorna il tuo Caricabatteria (Parte 1)Non Buttarlo, Modificalo! Aggiorna il tuo Caricabatteria (Parte 2)Non Buttarlo, Modificalo! Sistemi GNSS RTK a Basso CostoCon Accuratezza a Livello Centimetrico Esperimenti a 10 GHz con LNB Satellitari ModificatiSbloccare la Banda X a Basso Costo Telecamera per FerromodellismoInstalla un Modulo ESP32 CAM a Bordo! Monitor di Tensione con MicrocontrolloreProtezione dalla Scarica Profonda per Batterie e Altro Nodo Sensore AutonomoTrasmissione Dati LoRa con Alimentazione a Batterie Solari Layout e Sicurezza sul PCBConsigli per un Progetto Sicuro e Durevole

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