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Fertige und selbst aufgebaute Arduino-Knoten im TTN LoRaWAN hat sich als Kommunikationslösung im IoT hervorragend entwickelt. The Things Network (TTN) hat hierzu seinen Beitrag geleistet. Aktuell wird The Things Network auf The Things Stack Community Edition (TTS (CE)) aktualisiert. Die Cluster von TTN V2 werden gegen Ende 2021 geschlossen. Der Autor zeigt Ihnen die notwendigen Schritte, damit Sie in gewohnter Weise LoRaWAN-Knoten mit Hilfe von TTS (CE) betreiben und vielleicht auch das Netz der Gateways durch ein eigenes Gateway erweitern. Mittlerweile gibt es sogar für den mobilen Einsatz geeignete LoRaWAN-Gateways mit denen Sie über Ihr Mobiltelefon Verbindung zum TTN-Server aufbauen können. In diesem Buch werden eine Reihe kommerzieller und Arduino-basierter LoRaWAN-Knoten als auch neue, kostengünstige und für den Batteriebetrieb geeignete Hardware zum Aufbau autonomer LoRaWAN-Knoten vorgestellt. Die Registrierung von LoRaWAN-Knoten und Gateways im TTS (CE) sowie die Bereitstellung der erhobenen Daten über MQTT und die Visualisierung über Node-RED, Cayenne, Thingspeak und Datacake ermöglichen komplexe IoT-Projekte und völlig neue Anwendungen zu sehr geringen Kosten. Das vorliegende Buch versetzt Sie in die Lage, mit batteriebetriebenen Sensoren (LoRaWAN-Knoten) erfasste Daten drahtlos im Internet bereitzustellen und zu visualisieren. Sie lernen die Grundlagen für Smart-City- und IoT-Anwendungen, die beispielsweise die Messung von Luftqualität, Wasserständen, Schneehöhen, das Ermitteln von freien Parkfeldern (Smart Parking) und die intelligente Steuerung der Straßenbeleuchtung (Smart Lighting) u.a.m. ermöglichen.

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A Toolbox for Audio Lovers and Engineers Without any ambition to reach scientific levels, this book aims to be a toolbox for both audio lovers and high-end equipment designers. The elementary theory presented is the bare minimum for readers to grasp the operation and practical use of electrical, electromagnetic, physics, and electronic operations available in the designers’ toolbox. Each tool is explained in a minimum of words and theory without needless coverage of underlying equations or figures. The book chapters guide you through the process of designing quality amplifiers with vacuum tubes, from the very beginning, considering both technical and subjective requirements – in theory and practice. The book is a compilation of the author’s notes used in his professional and educational career but was nevertheless primarily written as a result of true love for the audiophile hobby.

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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. PbMonitor v1.0Un système de surveillance des batteries pour les applications à onduleurs et de stockage d'énergie contrôleur de charge solaire avec MPPT (1)Principes de base d'un contrôleur de charge solaire pour les systèmes autonomes magnétomètre à intégration du champ et capteurs artisanaux exactitude, ou précision ?vos appareils doivent posséder les deux ! AD7124 : un C/AN de précision en pratiqueFeatures for Sensor Signal Conditioning outil de contrôle PIDOptimisez facilement vos paramètres embedded world 2025 démarrer en électronique...…contrôle de la tonalité Academy Pro BoxLivre + cours en ligne + matériel adaptateur Milliohm-mètreUtilisant la précision de votre multimètre Un nouveau jalon dans le domaine des semi-conducteursEn route vers le 1,4 nm Connecteurs à technologie traversanteLe meilleur des deux mondes : THR fréquencemètrePortable et auto-calibré par GPS compteurs analogiquesDrôles de composants, la série testeur de quartz autonomeQuelle est la précision de votre source d'horloge ? testeur I²C peu couteuxconnecter des appareils I²C directement à votre PC sur le vifbienvenue chez les Pt’tites 2025 : une odyssée de l'IAL'impact transformateur sur le développement de logiciels projet 2.0Corrections, mises à jour, et courrier des lecteurs synthétiseur MIDI autonome Raspberry Pi (2)Améliorons notre configuration avec l’Intelligence oscillateur à pont de Wien "nortonisé"Petite cause, grand effet tester un microcontrôleur à 0,10 $Le microcontrôleur CH32V003 RISC-V et MounRiver Studio en pratique un lecteur audio avec égaliseur basé sur un FPGA (2)Ajout d'un réglage du volume, d'un mixage avancé et d'une interface Web

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Het boek Programmeerbare Logica neemt je mee op een ontdekkingstocht door de wereld van de digitale elektronica. Na het leggen van een grondige basis is er uitgebreid aandacht voor het maken van logische circuits. Auteur Vincent Himpe toont o.a. hoe je met bestaande bouwstenen logische elektronica systemen maakt. Hij laat verder zien hoe je om gaat met de interfacing met de buitenwereld. Hierbij komen stroomvoorziening, bord layout en beveiliging uitvoerig aan bod. Moderne logische systemen zijn zo complex dat het ontwerpen met kleine bouwstenen zoals losse poortjes, flipflops en tellers een haast onbegonnen zaak geworden is. Daarom gaat Himpe in de tweede helft van het boek in op de programmeerbare logica zoals CPLD en FPGA. Hij belicht een ontwerpmethode waarmee je snel de brug slaat tussen het klassieke ontwerp en het ontwerp in FPGA. Naast schematisch ontwerp komt ook het ontwerpen met synthesetalen zoals Verilog en VHDL aan de orde. Ter afsluiting wordt een project (een klok met alarmfunctie) geïmplementeerd in Verilog en VHDL. Ook het fysieke ontwerp met deze logische componenten komt aan bod. Hoe programmeer je deze en wat zijn de randvoorwaarden zoals stroomvoorziening en signaalconditionering. De inhoud van het boek is 'state of the art'. En alles wat besproken wordt is direct implementeerbaar met de gratis ontwikkelomgeving Quartus van Altera. Over de auteur Vincent Himpe (B) leeft sinds 2005 in San Jose – hartje Silicon Valley – en werkt aan de ontwikkeling van nieuwe harddisktechnologie en de chips.Himpe heeft meerdere patenten en over de jaren verschillende artikelen gepubliceerd in onder andere IMeko / TSCC, The Journal of Computer Standards AND Interfaces, Elektor en EDN. Hij is ook auteur van de bestseller 'Visual Basic for electronic engineering applications' uitgegeven door Elektor.

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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. Pour les yeux et les oreilles sortie vidéo sur les microcontrôleurs (1)vidéo composite electronica 2022nouvelles du plus grand salon mondial de l?électronique caméra ESP32si simple qu?on n?a même pas besoin du wifi alimentation ATX pour Raspberry Pi amplificateur pour casque 32 ?une solution simple mais de qualité à trois CI horloges radiocommandées SDRcinq signaux horaires, six affichages démarrer en électroniquediodes spéciales sur le viferrances qualitatives rétro-ingénierie d?un badge LED Bluetooth Low Energycomment commander un appareil BLE avec un script Python kit de développement MakePython ESP32tout dans une boîte mesure du THD avec un oscilloscope et une FFTcalculer facilement le facteur de distorsion machines à vision totalela technologie derrière les systèmes de vision industrielle d?aujourd?hui Infographies l?évolution de la commande vocale et audio des appareils électroniques bilan du WEEF 2022 bilan du salon electronica 2022les innovateurs n?ont pas manqué d?impressionner The Tubeun surprenant amplificateur à tubes à quand des biomatériaux pour l?électronique?? commutateur d?antenne Opera Cake pour HackRF Oneconnectez jusqu'à huit antennes à votre SDR concevoir avec Arduino et plusentretien avec l?auteur Ashwin Pajankar jauge de longueur à lidarmesure jusqu?à 12 m les signaux audios et l?ESP32l?environnement ESP-ADF en pratique Kit amplificateur de puissance Fortissimo-100 d?Elektor utiliser la lumière pour les effets sonoresfiltre synthétiseur à base de LDR, contrôlé en tension, 24 dB/oct amplificateur Hi-Fi d?Elektorle plus bruyant de tous?! visite à domicileafficheur volumétrique made in Canada projet 2.0corrections, mises à jour et courriers des lecteurs Hexadoku

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Multitasking and multiprocessing have become a very important topic in microcontroller-based systems, namely in complex commercial, domestic, and industrial automation applications. As the complexity of projects grows, more functionalities are demanded from the projects. Such projects require the use of multiple inter-related tasks running on the same system and sharing the available resources, such as the CPU, memory, and input-output ports. As a result of this, the importance of multitasking operations in microcontroller-based applications has grown steadily over the last few years. Many complex automation projects now make use of some form of a multitasking kernel. This book is project-based and its main aim is to teach the basic features of multitasking using the Python 3 programming language on Raspberry Pi. Many fully tested projects are provided in the book using the multitasking modules of Python. Each project is described fully and in detail. Complete program listings are given for each project. Readers should be able to use the projects as they are, or modify them to suit their own needs. The following Python multitasking modules have been described and used in the projects: Fork Thread Threading Subprocess Multiprocessing The book includes simple multitasking projects such as independently controlling multiple LEDs, to more complex multitasking projects such as on/off temperature control, traffic lights control, 2-digit, and 4-digit 7-segment LED event counter, reaction timer, stepper motor control, keypad based projects, car park controller, and many more. The fundamental multitasking concepts such as process synchronization, process communication, and memory sharing techniques have been described in projects concerning event flags, queues, semaphores, values, and so on.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Digital Load for High-Current TestingFrom Necessity to Innovation Vocal RemoverInstant Karaoke Circuit Audio A/B Selector With Gain ControlSwitches from Microphone to Line Inputs Better Charging for the LIR2032Be Kind to Your Coin Cells Touch Sensing Made SimpleA DIY Guide for Any Microcontroller Universal Infrared Remote SwitchA New Life for Old Remotes Microcontroller-Powered Moo BoxMaking Playful Sounds With a Microcontroller USB Battery Interface Powering Low-Draw Devices With Power BanksA “Stay Alive” Solution Small Class-A Audio Amplifier With Current OutputDrive Speakers with Current Instead of Voltage Pseudo-Balanced ModuleHigh CMRR with Unbalanced Audio Links Ni-MH Cells Automatic ChargerRefill All Your Battery Packs in One Go! Thyristor-Based Power Supply Protection Fingerprint Sensor SwitchA Useful Proof-of-Identity Device DC-DC 3-A Power ConverterUpgrade Your Fixed-Voltage Sources Remote Water Heater MonitorVoltage and Current Detection for AC Lines Attenuators for Audio Signals (1)Adjustable Via Jumpers Pimp My Car Battery Charger (Part 1)Don’t Throw It Away, Mod It! A Board for the Blue OnePCB for Alps Motorized Potentiometer with Feedback 50-Hz Reference from 60-Hz Mains VoltageHow to Use 50-Hz Electronics in 60-Hz Environments Digital IsolatorsRealizing Galvanic Isolation Easily Compact 12-W Hi-Fi Mono AmplifierSmall But Powerful LM386 Ramp Generator Three-Phase GeneratorWith Raspberry Pi Pico Door Opener for the Musically Talented Elektor Classic: Surf SynthesizerOcean Watersports Background Sound Generator (OWBSG) Pimp my Car Battery Charger (Part 2)Don’t Throw It Away, Mod It! Lamp Current MonitorWith a Raspberry Pi Pico Infrared Telegraphy Fnirsi SWM-10Repair Battery Packs With This Portable Intelligent Spot Welding Machine Stereo Audio Codec for the ESP32 and Co.No Need to Be Afraid of Audio Measurement Technology Tin Soldering TechniquesMake Them Well Right Away! Attenuators for Audio Signals (2)Switching Via Relays USB-C PowerDrawing Power from USB-C Power Adapters Three Circuits with Two and Three Counter ICs4017 ICs Working Together Active Components – The Diode A Timer For Ultra-Long DelaysSet It, and Forget It! Jack In and Jack OutA Useful Insert Option for Audio Circuits Power an ESP32 from a Single Li-ion Cell Hexadoku

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. ESP32 Audio Transceiver Board (Part 2)Wireless Audio Transmission Inductive AM TransmitterUses Pico’s PIO in an Arduino Sketch Navigating Wireless ProtocolsA Technical Guide Satellite Tracking Using LoRaThe TinyGS Network Bringing Space Data to Earth 4G-Compatible SMS Remote ControlRemotely Control Your Equipment High-Speed ProbeHigh-Impedance Inputs for Signals up to 200 MHz From Life’s ExperienceKafka KrakenSDR Performance Tests with the RP2350Is an Upgrade from Raspberry Pi Pico 1 to Pico 2 Worthwhile? Contact-Free E-Field Measurements (2)A Laser Vibrometer for Assessing the Membrane's Vibrations Crystals and OscillatorsImproving Crystal Accuracy Through Capacitor Selection Starting Out in ElectronicsSpecial Audio ICs Getting Started with Coding a DIY Project SPECTRAN® V6 MobileModular, Configurable Real-Time Spectrum Analyzer for Reliable Measurements Across All Frequency Ranges The Future of AI Is Forged in SiliconAn Interview with Anastasiia Nosova Autonomous Sensor Node v2.0 (System Architecture)Solar-Powered Sensing Platform with Integrated GPS, LoRaWAN, and More Precise PositioningBluetooth Channel Sounding Tested Powering the Future of Wireless CommunicationBTRY’s Ultra-Thin Solid-State Batteries Test-Driven Development in Firmware Writing Phone-Controlled Model CarWi-Fi + ESP32 + Smartphone = Remote Control 2025: An AI OdysseyAI Reasoning Models: The Chain-of-Thought Revolution Solar Charge Controller with MPP Tracking (3)Software and Commissioning Raspberry Pi Zero Web Streaming CameraUsing the ZeroTier VPN

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Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit! Sie sind noch kein Mitglied? Hier klicken! USB-MessadapterStrom und Signalqualität von USB-Anschlüssen testen 4...20 mA Stromausgang für Arduino UnoEine zuverlässige, EMI-unempfindliche Stromschleifenschnittstelle Automatische StaubsaugersteuerungHalten Sie den Arbeitsbereich Ihrer Werkzeuge sauber DDS-Generator mit ATtiny Opamp-Tester V2Neue Platine – nun auch für SMDs geeignet 550-mW-„Lamp“-AudioverstärkerDer warme Klang von Röhren – ganz einfach SicherungswächterSicherung mit Blink-LED überwachen Hochwertiger RIAA-VorverstärkerHolen Sie das Beste aus Ihren Vinyl-Schallplatten heraus! Drahzahlkalibrator für PlattenspielerEin Arduino-basierter Stroboskopgenerator mit 100–120 Hz Infrarot-fernbedienbarer DimmerSteuern Sie Ihre Halogen- oder LED-Stehleuchte mühelos und mit Stil Wie man switch…case mit Strings in C++/Arduino IDE verwendet Magnetfindermit einfachem Hall-Effekt-Sensor Intelligenter Einschaltknopf für Raspberry PiEine Lösung für Raspberry Pi bis zum Modell 4 Essenzielle Maker-TippsProfessionelle Einblicke für den Maker-Alltag Praktische Projekte mit dem 555-TimerGleichstrommotorsteuerung und Reaktionszeitschallungen Einfacher AC-Last-Ein-MonitorEnergie sparen mit einem einfachen Gerät Powerbanks parallel schaltenEine durchgehende Stromversorgung für drei Tage VFO bis 15 MHzMit Raspberry Pi Pico Geigen-Stimmgerät mit ATtiny202 Elektor Classics: Video-Eingangsverstärker für S/W-Fernseher Kapazitätsmesser20 pF bis 600 nF Quasi-analoges Uhrwerk MkIIZwei LED-Ringe für Stunden und Minuten Sie können alles tun, was Sie wollen(mit dem Arduino-Ökosystem an Ihrer Seite) Neon-Würfel mit Glimmlampen Elektor Classics: Video-Verstärker Inspirierende Hardware-Designs für Ihre ESPs Elektor Classics: RTTY-Abgleichanzeige RGB-LEDs mit integrierter SteuerschaltungLicht mit Präzision: ICLEDs setzen Maßstäbe Experiment: Auf dem Weg zu einem Mixed-Signal-Theremin?Moderne Time-of-Flight-Sensoren im Zusammenspiel mit dem zeitlosen XR2206-Analoggenerator ESP32-Audio-Transceiver-Board (Teil 1)SD-Karten-WAV-Player-Demo Infografiken: Schaltungen & Schaltungsdesign 2025 Kleiner Audio-MixerEinfaches und vielseitiges skalierbares Design Intelligenter Treppenlicht-TimerEffiziente Lichtsteuerung zur Reduzierung des Energieverbrauchs Machen Sie Ihre Rollläden smartVelux-Hardware steuern mit ESP32 und MQTT Solid-State-FußwärmerEnergieeffizienter Komfort Ist der M5Stamp Fly Quadcopter der nächste Tello? Erhöhung der WLAN-Reichweite des ESP32-C3 SuperMiniEine einfache und wirkungsvolle Antennenmodifikation ZD-8968 Heißluft-LötstationEin preisgünstiges Arbeitstier oder nur heiße Luft? Parksensor-TesterDefekte beim PDC-System am Auto finden

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If you enjoy DIY electronics, projects, software and robots, you’ll find this book intellectually stimulating and immediately useful. With the right parts and a little guidance, you can build robot systems that suit your needs more than overpriced commercial systems can. 20 years ago, robots based on simple 8-bit processors and touch sensors were the norm. Now, it’s possible to build multi-core robots that can react to their surroundings with intelligence. Today’s robots combine sensor readings from accelerometers, gyroscopes and computer vision sensors to learn about their environments. They can respond using sophisticated control algorithms and they can process data both locally and in the cloud. This book, which covers the theory and best practices associated with advanced robot technologies, was written to help roboticists, whether amateur hobbyist or professional, take their designs to the next level. As will be seen, building advanced applications does not require extremely costly robot technology. All that is needed is simply the knowledge of which technologies are out there and how best to use each of them. Each chapter in this book will introduce one of these different technologies and discuss how best to use it in a robotics application. On the hardware side, we’ll cover microcontrollers, servos, and sensors, hopefully inspiring you to design your own awe-inspiring, next-generation systems. On the software side, we’ll cover programming languages, debugging, algorithms, and state machines. We’ll focus on the Arduino, the Parallax Propeller, Revolution Education PICAXE and projects I’ve with which I’ve been involved, including the TBot educational robot, the PropScope oscilloscope, the 12Blocks visual programming language, and the ViewPort development environment. In addition, we’ll serve up a comprehensive introduction to a variety of essential topics, including output (e.g. LEDs, servo motors), and communication technologies (e.g. infrared, audio), that you can use to develop systems that interact to stimuli and communicate with humans and other robots. To make these topics as accessible as possible, handy schematics, sample code and practical tips regarding building and debugging have been included. Hanno Sander Christchurch, New Zealand

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ZELFBOUW LIPO-SUPERCHARGER KITvan prototype tot productie ELEKTOR @ 60gedachten bij zestig jaar elektronica SIGLENT SDM3045X TAFELMULTIMETER DC-STROOMKLEMHall-sensor + ferrietkern + Arduino SOLDEERSTATION 2021makkelijk om te bouwen! KENNISMAKING MET DE PARALLAX PROPELLER 2 (DEEL 2)de ontwikkelomgeving en de code WIFI VOOR DE LORA SWITCHgeïntegreerd in Home Assistant met ESPHome GEEN ANGST VOOR DE CELLULAIRE MODULE! HOUD DE TIJD BIJ MET ESP32 EN TOGGLwerken met de M5Stack KENNISMAKING MET HET RASPBERRY PI PICO-BOARD EN DE RP2040 MICROPYTHON VOOR MICROCONTROLLERStechnieken voor kleine displays 12–200 V DC/DC-CONVERTERvoor buizenversterkers WARMTEZOEKERde Seek Shot Pro warmtebeeldcamera OBJECTGEORIËNTEERD PROGRAMMERENeen korte inleiding met C++ OOST WEST LAB BEST...waar Kurt Diedrich synthesizers bouwt JAVA OP DE RASPBERRY PIdeel 1: GPIO’s DIP-SCHAKELAARSvreemde onderdelen INTERACTIEFcorrecties & updates || brieven van lezers WIENS PRODUCT IS HET EIGENLIJK?recht-op-reparatie beweging laat van zich horen UIT HET LEVEN GEGREPENhet grote blunderboek MICRO-PROFESSORassembleertaal leren op een Z80 ALLE BEGIN......hoeft niet zo moeilijk te zijn – zelfs als het om condensatoren gaat HEXADOKUThe Original Elektorized Sudoku

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Tiny Solar SupplySunlight In, 3.3 V Out Solid-State Stereo Audio SwitchFree of Clicks and Moving Parts Large RGB DigitWith Through-Hole WS2812 LEDs Microphone Preamplifier with 48-V Phantom Power DistributionGreat for Podcasting and Pro Audio Square Wave Generators with Duty Cycle and Frequency ControlsSimple Circuits with CMOS and TTL ICs Simple Dynamic CompressorWith Soft Control and Warm Sound Simple Electronic Lock Active RectifierA solution or 2…40 V at up to 3 A with Reverse Current Suppression On / Off Switching System for Active Boxes Unbalanced/Balanced ConverterWith RFI Filter and DC Protection 2023: An AI OdysseyWhere Did It Come From? Where Is It Going? Speed Controller for Fan or VentilatorWith Manual and Thermostat Modes The Latest from Arduino Project HubNew Projects from the Community Power Overload MonitorMonitor Power Lines for Excessive Current Blink in the Dark Without TransistorsAn Oscillator with Only Two-Terminal Parts Morse Code GeneratorUse It as Beacon or Learning Device! Programmable Video DACHandles Any Format up to RGB888 A T(eeny) Tiny PianoWithout Moving Parts Dual Dice without MCUDual Dice on a Single PCB – Plus Some Design Tricks Electronic Scarecrow Circuits to Amuse, Inspire, and Amaze LC-LP-HA ThermometerAccurate Measurements and a Binary Display THD GeneratorGenerating Distortion on Purpose Thyristor-Based Overtemperature IndicatorElectronic Components Used Unconventionally PTC Fuse Flip-Flop Funny BirdA Chirping Elektor Classic Neon Lamp with a Microcontroller Temperature-Stabilized IC Current SourceNeutralizing the Temperature Drift of Integrated Current Sources Second-Order Adjustable Treble BoostA Special Hearing Aid for the Elderly Edwin Comes HomeA Look Back After 53 Years One-Armed BanditA Simple, Fun, Nostalgic, and Educational Elektor Classic! Simple Digitally Controlled Variable Resistor Water Leak ProtectionSafeguard and Alarm for Water Leaks Eco-Timer with Auto-ShutdownNeeds 0.0 mW in Off Mode! ChatGPT and Arduino ZD MeterMeasuring Z Voltages of Z Diodes ≤ 100 V Servo Tester ESP32 Windows Controller with Free Software Analog and Mixed-Signal ICs by MicrochipLow-Consumption Power Management and Signal Processing Interface StandardsFilter and Surge Protection for the I²C Bus Li-Ion Battery MonitorResidual Charge Indicator Provides Visual Feedback PS/2 Mouse As Rotary Encoder (and More…) Simple Twilight Switchfor Retrofitting Lamps or Installations Water Pump ControllerPrepare Yourself Against Rising Water Levels Solar-Powered Christmas FM Radio BallAll You Want for Christmas Is This Vibration Sensor with RelayTap or Shake to Switch On Continuity TesterSensitive and Unintrusive Power On/Off with a Pushbutton Mini-Drill Power Control 2023A Revision of a Design from 1980 Digital Vibration SensorTurn Vibrations into Precisely Timed Pulses Reverse-Polarity Protection with Low Voltage Drop A Low-Cost Frequency Standard Tiny DCF77 SimulatorAn Accurate Fake-Time Standard The Lilygo T-PicoC3Combines RP2040 and ESP32-C3 with Full Color-TFT Display

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