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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. A Current Source for Testing (Z-)DiodesChecking Z-Diodes from 1 to 54 V @ 1 to 50 mA ESD Strap TesterA Bench Tool with Pass, Borderline, and Fail Indication Power Supply Transient Response TesterA Repeatable Step-Load Generator for Bench Power Supplies Euclidean Sequencer Without a MicrocontrollerTrigger Patterns and CV Sequences with Simple CMOS Logic LED Flashing Light for Gates and More with an Audible Alert Need PCBs? The Elektor PCB Service Has You Covered. Toothbrush TimerUsing a Tiny PIC A Contactless Magnetic Combination LockWith the AS5600 Rotary Position Sensor Low-Noise Battery-Powered PreamplifierFor Dynamic Microphones The Arduino Nano TestLabMeasurement, Control, and Regulation Rhythmic Bass LightEmphasize the Rhythm of Your Music Low-Cut FilterNo Risk of Audio Feedback on Your System Precise 1 Hz Square Wave Generator for BreadboardsA Reliable CMOS-Based Clock Source 555 Upside DownDuty Cycles Down to Zero From Halfgeleidergids to Circuit Specials65 Years of Electronics Innovation Electrical IsolationCAN Interface with Digital Isolator and Power Module SpongillatorA Sponge-Based Oscillator True Random Number GeneratorWith Integrated Chi-Square Test 3D Viewer for HTML pagesSimple, and Almost Without Code Programming with TLScriptA Scripting Language for Measurement, Testing, and Control Circuit Design: Tips from Experts FeedbackWhat Is It and Why Is It Important? One Board, Endless Ideas: Arduino UNO QFrom Retro Gaming to Real-Time Environmental Monitoring How to Fix a Donut Antenna Standby KillerA Real On/Off Switch for Your TV Battery TestingMeasuring Batteries with the Arduino Nano Power Supply for Audio Power AmplifiersA Good Power Supply Without Mains Hum Prototyping Boards for RFFast Setups with DIY Prototyping Boards T3 Surge ProtectionA Type 3 Spike Suppressor for Your Sensitive Equipment IoT Room Thermostat BoardWith ESP32-C3/S3-Based Xiao MCU module From Rigid to SmartFlexible and Printed Electronics — Between Vision and Industrial Reality

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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! Audio-DSP-FX-Prozessor-BoardTeil 1: Eigenschaften und Design 50 Jahre Elektor in englischer Sprache KiCad 8Neue und aktualisierte Funktionen MultiCalculator-KitEin Elektronikrechner-Bausatz von Elektor mit Arduino Preiswerte GNSS-RTK-SystemeFür zentimetergenaue Positionsbestimmung Platinenlayout und SicherheitTipps für sichere und langlebige Leiterplatten Opamp-TesterFür Audio- und andere Anwendungen Projekt-Update #4 : Energiemessgerät mit ESP32Energieüberwachung mit MQTT Echtzeit-Spektrumanalyzer mit Waveguide-Technologie und Multi-Schnittstellen-PCsAaronia etabliert neues Produktsegment und präsentiert erste Prototypen auf der electronica in München electronica 2024Highspeed und robuste Board-to Board Steckverbinder InduktivitätenSpulen und Ferrite anwendungsorientiert selektieren EMI-Abschirmung zur Einhaltung der elektromagnetischen Konformität Das ultimative Werkzeug für jeden Elektronik-EnthusiastenUnendliche Möglichkeiten mit Red Pitaya und 1.000+ Click Boards™ Die 100 % durchgängige Flussmittelseele Siglent stellt seine neue Vektornetzwerkanalysator-Plattform SNA6000A vor HDI der MittelklasseEin neuer ökonomischer PCB Pooling Service für hochpolige BGAs Ferngesteuerte IoT-EntwicklungDie einzige Lösung für Fernunterricht und Entwicklung in der Embedded-Industrie Herausforderungen der DFM-Analyse für Flex- und Rigid-Flex-Design Aus dem Leben gegriffenMikrotechnophobie Feliz Natal: 3D-WeihnachtsbaumEine 3D-Platine mit preiswertem 32-Bit-Mikrocontroller Aller Anfang......muss nicht schwer sein: Weiter geht es mit den Opamps! Ein autonomer SensorknotenProjekt-Update #1: Reduzierung der Leerlauf-Stromaufnahme mit externer RTC mit Leistungsschalter 2024: Eine Odyssee in die KIEin Blick zurück in die Zukunft LED-Displays mit dem MAX7219Ein praktischer Ansatz für einen großartigen Chip Projekt 2.0Korrekturen, Updates und Leserbriefe VibroTactile-HandschuheEin Durchbruch für Parkinson-Patienten?

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The UT622E handheld LCR meter features powerful functions, high accuracy, fast speed, and long standby time. With a clear and intuitive 2.8-inch TFT LCD display, large-capacity rechargeable battery, and 100 kHz test frequency, the meter can be used for longstanding accurate and convenient measurement in any occasion. It is suitable for the measurement and screening of inductance, capacitance, and resistance in laboratories, production lines, maintenance points, etc. Features Max. test frequency: 100 kHz Accuracy: 0.1% Display count: 99999 Max. test rate: 20 times/s DCR: Yes Connectivity: Mini-USB Display: 2.8" TFT LCD Specifications Testfrequency 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz Test level 0.1 Vmrs, 0.3 Vrms, 1 Vrms Output impedance 100 Ω Measurement parameters Primary: L/C/R/Z/DCRSecondary: D/Q/Θ/ESR DSR speed test Fast (20 times/s), medium (5 times/s), or slow (2 times/s) Range Auto/Hold Tolerance range 1%~20% Equivalent mode Series/Parallel Clearing connection Open/Short circuit Fuse of test ports 0.1 A/250 V Communication interface Mini-USB MAX reading of primary parameters 99999 MIN resolution 0.0001 Maximum accuracy 0.10% L 0.00 µH~99.999 H C 0.00 pF~99.999 mF Z/R 0.0000 Ω~9.9999 MΩ ESR 0.0000 Ω~999.99 Ω D 0.0000~9.9999 Q 0.0000~99999 Θ -179.9°~179.9° DCR 0.01 mΩ~20.000 MΩ Power supply 3.7 V/1800 mAh lithium polymer battery Display 2.8" TFT LCD (320x240) Dimensions 93 x 192 x 44 mm Weight 420 g Included UT622E LCR meter Short circuit board Four-terminal kelvin test leads USB cable Manual Downloads Datasheet Manual Software

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Whether you are an electronics enthusiast or engineering professional, this book provides the reader with an introduction to the use of the CadSoft’s EAGLE PCB design software package. EAGLE is a user-friendly, powerful and affordable software package for the efficient design of printed circuit boards. It offers the same power and functionality to all users, at a smaller cost than its competitors. A free version of EAGLE is available to enthusiasts for their own use. EAGLE can be used on the main computing platforms including: Microsoft Windows (XP, Vista or Windows 7); Linux (based on kernel 2.6 or above) and Apple Mac OS X (Version 10.6 or higher). Any hardware that supports these software platforms will run the EAGLE application. The book is intended for anyone who wants an introduction to the capabilities of EAGLE. The reader may be a novice at PCB design or a professional wanting to learn about EAGLE, with the intention of migrating from another CAD package. This book will quickly allow you to: obtain an overview of the main modules of EAGLE: the schematic editor; layout editor and autorouter in one single interface; learn to use some of the basic commands in the schematic and layout editor modules of EAGLE; apply your knowledge of EAGLE commands to a small project; learn more about some of the advanced concepts of EAGLE and its capabilities; understand how EAGLE relates to the stages of PCB manufacture; create a complete project, from design through to PCB fabrication. The project discussed in the book is a popular, proven design from the engineering team at Elektor. After reading this book while practicing some of the examples, and completing the projects, the reader should feel confident about taking on more challenging endeavors.

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Microcontrollers have become an indispensable part of modern electronics. They make things possible that vastly exceed what could be done previously. Innumerable applications show that almost nothing is impossible. There’s thus every reason to learn more about them, but that raises the question of where to find a good introduction to this fascinating technology. The answer is easy: this Microcontroller Basics book, combined with the 89S8252 Flash Board project published by Elektor Electronics. However, this book offers more than just a basic introduction. It clearly explains the technology using various microcontroller circuits and programs written in several different programming languages. Three microcontrollers from the 8051 family are used in the sample applications, ranging from the simple 89C2051 to the AN2131, which is designed to support USB applications. The programming tools include assemblers, Basic-52 and BASCOM-51, and several C compilers. Every reader can thus find the programming environment most suitable to his or her needs. In the course of the book, the reader gradually develops increased competence in converting his or her ideas into microcontroller circuitry. All of the sample programs can be downloaded from the Elektor Electronics website or the author’s website. That has the added advantage that the latest versions are always available.

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New LCR Meter 50 Hz - 2 MHz Part 1automatic impedance measuring bridge measures the resistance, capacitance and inductance of components with an impedance of 10 mΩ to 100 MΩ From Ding-Dong Door Chime to IoT DoorbellIntegrate your doorbell in Home Assistant with ESPHome Battery ManagementWhat to Be Aware of When Using (Lithium) Batteries Starting Out in ElectronicsEasier Than Imagined! Small Circuits RevivalFrom the Elektor Suggestions Box Breadboard Graphics with Fritzing Analogue Filter Design (Part 2)Active Filters Homelab Tours: The Lap CounterA Project for Mini Petrol-Heads Developer’s ZoneTips & Tricks, Best Practices and Other Useful Information Review: Rigol DS1054Z Four-Channel Oscilloscope Christmas CandleBlow It Out! Tunable Valve Sinewave Generator Retro is back! Review: The Rigol DG2072 Generator KiCad Plugins and Add-ons Differential Oscilloscope Current Probe 2.0Measure Currents Using Your Oscilloscope The Hewlett-Packard Interface LoopConnect the world! The Future of Machine LearningAn Interview with Daniel Situnayake Smartphone Apps for Android and iOSProgramming Apps Within a Single Development Environment From Life's ExperienceThe Value of a Technical Education 5G: How Infrastructure Shapes Our Society Practical ESP32 Multitasking (5)Task event notification HP 10811 OscillatorPeculiar Parts, the series LoRa GPS TrackerWith Open Hardware and Software Programming the Finite State Machinewith 8-bit PICs in Assembly and C

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As demand for solar panel installation has risen sharply, especially for installations larger than balcony power plants, the order books of solar companies are full. If you ask for a quote today, you may have to wait a while, if your request isn't simply postponed indefinitely. Another consequence of the solar boom is that some companies are charging very high prices for installations. Yet there is an obvious and radical solution to the problem of excessive prices: Do it yourself, as the English say. The price of materials is currently affordable, and it's the ideal time for those who do the work themselves. They couldn't save more. Add to this the satisfaction of doing something useful, both economically and ecologically, and the pleasure of building yourself. In this special issue, you'll find a wide selection of Elektor assemblies, from solar panel controllers to solar water heaters and solar panel orientation systems. The issue also contains practical information on solar panel installation and the technology behind them. Finally, there are a number of articles on the subject of balcony power plants, from how to install them to how to connect them to the Internet... Contents BASICS Dimensioning Photovoltaic Panel ArraysAn introduction to photovoltaic energy and the commonest techniques,followed by simplified calculation models and setup guidelines. Light Sensor TechnologyMeasuring daylight using LEDs. Solar Power Made SimpleSolar charging with and without a controller. Cable Cross-sections and Energy Losses in Solar SystemsKey considerations on the minimum values to respect for electricalcurrent in solar panel cabling. Solar ModulesEverything you always wanted to know about solar panels... Ideal Diode ControllerDiode Circuits with Low Power Dissipation. TIPS Tracking for Solar Modules zBot Solar/Battery Power Supply Solar Cell Array Charger with Regulator Solar Cell Voltage Regulator Solar-Powered Night Light Alternative Solar Battery Charger PROJECTS Energy LoggerMeasuring and Recording Power Consumption. Tiny Solar SupplySunlight In, 3.3 V Out. A Do-It-Yourself DTURead Data from Small Inverters by μC. Solar ChargerPortable energy for people on the move. Solar Thermal Energy RegulatorMaximum power point tracking explored. 2-amp Maximum Power Tracking ChargerSolar Power To The Max. Computer-driven HeliostatFollow the sun or the stars. Garden LightingUsing solar cells. Solar Panel Voltage Converter for IoT DevicesYes we CAN exploit indoor lighting. Travel ChargerFree power in the mountains. Solar Cell Battery Charger/MonitorWith protection against deep discharge. Solar-powered Battery ChargerPIC12C671 avoids overcharging and deep charging. Converters for Photovoltaic PanelsContributed by TME (Transfer MultisortElektronik). Solar Charging RegulatorFor panels up to 53 watts. Solar-Powered ChargerFor lead-acid batteries. CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays. Balcony Power Plant 2.0The latest: solar panels, installation and inverters

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Der ESP8266 von Espressif ist ein Wi-Fi-Mikrochip mit vollem TCP/IP-Stack und Mikrocontroller-Fähigkeit. Es hat mit seinem niedrigen Preis Wellen in der Herstellergemeinschaft geschlagen. Aber viele Entwickler waren unzufrieden mit dem hohen Stromverbrauch von ESP8266. Der ESP32, ausgestattet mit einem ULP (Ultra Low Power) Coprozessor, bietet eine Lösung. Dieses E-Book enthält eine Reihe von Projekten mit ESP32 & ESP8266 sowie ein Interview mit dem CEO von Espressif Teo Swee Ann. Artikel ESP32 für den Einsatz in Geräten der Industrie 4.0 Scrollende Nachrichtenanzeige, 512 LEDs per WLAN mit ESP-12F ansteuern Das vernetzte Treibhaus, IoT-Modellprojekt mit MQTT und Node-RED VFD-Röhren-Uhr mit ESP32, Internet-Zeit auf Vintage-Displays ESP32 stromsparend, die Programmierung des ULP-Coprozessors DCF77-Emulator mit ESP8266, DCF durch Internet-Zeit ersetzen Was steckt hinter dem berühmtem ESP8266? WLAN-Thermostat, flexible und programmierbare Temperatursteuerung Timer für den WLAN-Thermostat, sieben Kanäle mit atomarer Genauigkeit Schweizer Taschenmesser für Mikrocontroller, PlatformIO als universelles Programmier-Tool ESP32 für Power-User, native Programmierung Weather-Display, aktuelle Wetterdaten auf einem LC-Display darstellen GoNotify, ein flexibles IoT-Sensorinterface. Einfach in die Cloud. Der große Bruder des ESP8266, erste Schritte mit dem ESP32 und der Arduino-IDE MicroPython, Python für kleine Systeme RGBDigit Clock, farbenfrohe 7-Segment-Displays zeigen Zeit und Klima USB-Programmieradapter für die ESP-Module von Espressif Heizkesselmonitor mit ESP8266, Haustechnik für die Energiewende WLAN für Mikrocontroller, steuern mit dem ESP8266 Die Rückkehr des WLAN-Controller-Boards, Smartphone steuert IoT-Objekte WLAN kompakt und autonom, oder: Wie man den ESP8266 auch ohne MCU einsetzen kann

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From Theory to Practical Applications in Wireless Energy Transfer and Harvesting Wireless power transmission has gained significant global interest, particularly with the rise of electric vehicles and the Internet of Things (IoT). It’s a technology that allows the transfer of electricity without physical connections, offering solutions for everything from powering small devices over short distances to long-range energy transmission for more complex systems. Wireless Power Design provides a balanced mix of theoretical knowledge and practical insights, helping you explore the potential of wireless energy transfer and harvesting technologies. The book presents a series of hands-on projects that cover various aspects of wireless power systems, each accompanied by detailed explanations and parameter listings. The following five projects guide you through key areas of wireless power: Project 1: Wireless Powering of Advanced IoT Devices Project 2: Wireless Powered Devices on the Frontline – The Future and Challenges Project 3: Wireless Powering of Devices Using Inductive Technology Project 4: Wireless Power Transmission for IoT Devices Project 5: Charging Robot Crawler Inside the Pipeline These projects explore different aspects of wireless power, from inductive charging to wireless energy transmission, offering practical solutions for real-world applications. The book includes projects that use simulation tools like CST Microwave Studio and Keysight ADS for design and analysis, with a focus on practical design considerations and real-world implementation techniques.

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De SDRplay RSPdx-R2 is een breedbandige, volledig uitgeruste 14-bit SDR-ontvanger met één tuner die het volledige RF-spectrum van 1 kHz tot 2 GHz bestrijkt, met een spectrumbereik tot 10 MHz. Hij bevat drie antennepoorten, waarvan er twee SMA-connectoren gebruiken en werken over het volledige bereik van 1 kHz tot 2 GHz, en de derde een BNC-connector heeft die werkt tot 200 MHz. De RSPdx-R2 is een verbeterde versie van de RSPdx met verdere ontwerpverbeteringen voor gebruik bij frequenties lager dan 2 MHz. De RSPdx-R2 is gehuisvest in een stevige stalen behuizing en biedt, naast de functionaliteit van de RSP1B, drie softwarematig selecteerbare antenne-ingangen en een externe klokingang. Hij biedt uitstekende prestaties op HF- en VHF-frequenties tot wel 2 GHz. De RSPdx-R2 ondersteunt ook een "HDR-modus" die geoptimaliseerd is voor de veeleisende radio-ontvangstomstandigheden onder de 2 MHz. De RSPdx-R2 introduceert, in combinatie met de eigen software van SDRplay, een speciale HDR-modus (High Dynamic Range) voor ontvangst binnen geselecteerde banden onder de 2 MHz. De HDR-modus levert verbeterde intermodulatieprestaties en minder storende signalen voor die uitdagende banden. Kenmerken Bestrijkt alle frequenties van 1 kHz via VLF, LF, MW, HF, VHF, UHF en L-band tot 2 GHz, zonder onderbrekingen Ontvang, bewaak en neem tot 10 MHz spectrum tegelijk op Aanzienlijk verbeterde ruisprestaties onder 1 MHz (d.w.z. voor sommige MF, LF en lager) Verbeterd dynamisch bereik onder 2 MHz, zowel in tunermodus als HDR-modus HDR-modus onder 2 MHz biedt voordelen op het gebied van algemeen dynamisch bereik en selectiviteit Softwarematig selecteerbare keuze uit 3 antennepoorten Externe klokingang voor synchronisatiedoeleinden, of aansluiting op GPS-referentieklok voor extra frequentienauwkeurigheid Uitstekend dynamisch bereik voor uitdagende ontvangstomstandigheden Gratis gebruik van Windows-gebaseerde SDRuno-software (raadpleeg de website voor ondersteunde versies) Gratis gebruik van SDRconnect SDR- en serversoftware voor Windows, MacOS en Linux (raadpleeg de website voor ondersteunde versies) Ondersteuning voor multiplatform drivers en API's, waaronder Windows, Linux, Mac en Raspberry Pi 4/5 Sterk en groeiend softwareondersteuningsnetwerk Gekalibreerde S-meter/RF-vermogens- en signaal-ruisverhoudingsmeting met SDRuno (inclusief datalogging naar .CSV-bestanden) Gedocumenteerde API beschikbaar voor demodulator- of applicatieontwikkeling op meerdere platforms Toepassingen (Amateur) Luisteren naar kortegolfradio Uitzending DX (AM/FM/TV) Panadaptor Vliegtuigen (ADS-B en ATC) Slow Scan TV Monitoring van multi-amateurbanden WSPR & digitale modi Weerfax (HF en satelliet) Satellietmonitoring Geostationaire omgevingssatellieten Trunked radio Monitoring van nutsbedrijven en hulpdiensten Snelle en effectieve antennevergelijking Toepassingen (Industrieel) Spectrum Analyser Bewaking Draadloze microfoonbewaking RF-meting IoT-ontvangerketen Signaalregistratie RFI/EMC-detectie Bewaking van de uitzendintegriteit Spectrumbewaking Vermogensmeting Toepassingen (Educatief/Wetenschappelijk) Onderwijs Ontwerp van ontvangers Radioastronomie Passieve radar Ionosonde Spectrumanalysator Ontvanger voor IoT-sensorprojecten Antenneonderzoek Specificaties Frequentiebereik 1 kHz – 2 GHz Antenne-aansluiting SMA Antenne-impedantie 50 ohm Stroomverbruik (typisch) 190 mA bij >60 MHz (excl. Bias-T)120 mA bij <60 MHz (excl. Bias-T) USB-aansluiting USB-B Maximaal ingangsvermogen +0 dBm Continu+10 dBm korte duur ADC-samplefrequenties 2-10,66 MSPS ADC-aantal bits 14 bit 2-6,048 MSPS12 bit 6,048-8,064 MSPS10 bit 8,064-9,216 MSPS8 bit >9,216 MSPS Bias-T 4,7 V100 mA gegarandeerd Referentie 0,5 ppm 24 MHz TCXOFrequentiefout trimbaar tot 0,01 ppm in het veld Bedrijfstemperatuur −10˚C tot +60˚C Afmetingen 113 x 94 x 35 mm Gewicht 315 g Downloads Datasheet Software RSPdx-R2 vs RSPduo RSPdx-R2 RSPduo Continue dekking van 1 kHz tot 2 GHz ✓ ✓ Tot 10 MHz zichtbare bandbreedte ✓ ✓ 14-bits ADC siliciumtechnologie plus meerdere krachtige ingangsfilters ✓ ✓ Softwarematig selecteerbare AM/FM & DAB broadcast band notch filters ✓ ✓ 4,7 V Bias-T voor voeding van externe antenneversterker ✓ ✓ Voedt de USB-kabel met een eenvoudige aansluiting type B ✓ ✓ 50Ω SMA-antenne-ingang(en) voor werking van 1 kHz tot 2 GHz (softwarematig instelbaar) 2 2 Extra softwarematig selecteerbare Hi-Z ingang voor werking tot 30 MHz ✓ Extra softwarematig selecteerbare 50Ω BNC-ingang voor werking tot 200 MHz ✓ Extra LF/VLF-filter voor onder 500 kHz ✓ 24 MHz referentieklokingang (+ uitgang op RSPduo) ✓ ✓ Dubbele tuners voor ontvangst op 2 totaal onafhankelijke 2 MHz-bereiken ✓ Dubbele tuners voor diversiteitsontvangst met SDRuno ✓ Robuuste zwartgelakte stalen behuizing ✓ ✓ Algemene prestaties onder 2 MHz voor MW en LF ++ + Meerdere gelijktijdige toepassingen + ++ Prestaties in uitdagende fading-omstandigheden (*met gebruik van diversiteitsafstemming) + *++

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