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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. Cloc 2.0de wekker die je altijd al wilde hebben PIO in de praktijkexperimenten met de programmeerbare I/O van de RP2040 Armeluis chiptweakerwe krijgen je wel (goedkoop) aan de praat... Echte USB-toevalsgeneratortwee PIC’s voor de prijs van één AVR Pimp my mike...opvoeren doe je zelf FFT met Maixduinofrequentiespectra vastleggen Uit het leven gegrepenontwerp(on)logica UCN5804 stappenmotordrivervreemde onderdelen Simuleren met Micro-Capeerste stappen in een complexe wereld PAUL Award 2022jonge technische talenten en hun creatieve ontwerpen Mijn eerste Software Defined Radioin minder dan 15 minuten klaar Microcontroller-documentatie verklaarddeel 1: de opzet van een datasheet Hoe verder met AI en embedded systems?tools, platforms – en worden schrijvers obsoleet? Digitalisering van verticale landbouw Elektor Infographicsembedded en AI vandaag – en morgen Een introductie tot TinyML Casestudy KwickPOS High-performance in elke klassecomputer-on-module standaarden Alle begin......wordt eindelijk actief! I²C-communicatie met Node.js en een Raspberry Pibekijk sensordata in een browser Video-output met microcontrollers (2)VGA en DVI Het Metronom real-time besturingssysteemeen RTOS voor AVR-processoren DVI op de RP2040vraaggesprek met Luke Wren, chipontwikkelaar bij Raspberry Pi Display-HAT Minitoont het weer op de Raspberry Pi De WEEF 2022 Awardshet goede vieren Hexadoku

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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. Raspberry Pi Pico als spectrumanalyzerFFT’s met goedkope hardware ±40 V lineaire spanningsregelaaralternatieve voeding voor de Fortissimo-100 eindversterker... en andere! Flexibele draadloze communicatie met een MCUEEPROM opent netwerkmogelijkheden voor draadloze MCU’s € 5000 voor het oprapen!doe mee aan de STM32 Wireless Innovation Design Contest 2023: een AI-odysseeaan de slag met Code Interpreter van ChatGPT LoRa – een Zwitsers zakmesdeel 1: het LoRa-protocol en zijn voordelen Instelbare current sink met geïntegreerde klokgeneratortest voedingen, spanningsconverters en accu’s Twee nieuwe Arduino UNO R4-boards: Minima en WiFi Logaritmische potentiometersze zijn exponentieel! Motordriver breakout-boardeen BoB voor een 5 A DC-motordriver van 3×3 mm Uit het leven gegrepenelektronica periculosa Biedt cellulair het laagste stroomverbruik voor IoT?energie-eisen van LTE-M en NB-IoT in LPWAN-implementaties Draadloze communicatie in IoT-systemen met Arduino MKR-moduleshet juiste board voor WiFi, LoRa en andere standaarden AC-verliezen in magnetische componentenvoorkom hete spoelen! Meten voor optimale cloud-connectiviteit Matter implementatie: Wat is er nodig om Matter-devices in te zetten? YARD Stick Onesub-1 GHz draadloos testtool Houdrelaisvreemde onderdelen PIC voor tien – precies op tijdontwerp van een SDR-tijdseinontvanger Due Diligence DirectiveBusiness as Usual Will Not Do Alle begin......versterkt spanningen Infrageluid-recorder met de Arduino Pro Minieen voorbeeldproject uit de Elektor-uitgave “Arduino & Co” Cloud-gebaseerde energiemetermet een ESP32-module en een PZEM-004T spanning/stroom-sensor Een gids voor puristisch programmeren (deel 2)nauwkeurige timing, de UART en debugging

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Mastering PCB design with real-world projects This book builts on KiCad Like a Pro – Fundamentals and Projects and aims to help you practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more. KiCad 8 is a modern, cross-platform application suite built around schematic and design editors. This stable and mature PCB tool is a perfect fit for electronic engineers and makers. With KiCad 8, you can create PCBs of any complexity and size without the constraints associated with the commercial packages. Here are the most significant improvements and features in KiCad 8, both over and under the hood: Modern user interface, completely redesigned from earlier versions Improved and customizable electrical and design rule checkers Theme editor allowing you to fully customize the look of KiCad on your screen Ability to import projects from Eagle, CADSTART, and more An improved and tightly integrated SPICE circuit simulator Autorouting with the Freerouting plugin Filters define which elements of a layout are selectable Enhanced interactive router helps you draw single tracks and differential pairs with precision New or enhanced tools to draw tracks, measure distances, tune track lengths, etc. Enhanced tool for creating filled zones A customizable coordinate system facilitates data exchange with other CAD applications Realistic ray-tracing capable 3D viewer Differential pair routing Rich repositories of symbol, footprint, and 3D shape libraries Python scripting API for programmatic customization and extensions Improved footprint wizard for fast custom footprints

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The Siglent SPD4306X is a 4-channel DC Linear Programmable Power Supply equipped with a 4.3-inch TFT-LCD display, friendly human-machine interface, and excellent performance indicators. Real-time waveform display provides engineers with an informative user interface. SPD4306X offers a total output power of 400 W with a resolution of 1 mV/1 mA. The maximum voltage and current for each channel are as follows: CH1: 15 V/1.5 A CH2: 30 V/6 A CH3: 30 V/6 A CH4: 15 V/1 A Features Rated output power: 400 W Rated voltage: 32 V, 12 V, 30 V Up to four high-precision power supplies with independent controllable outputs, supporting CH2 and CH3 series and parallel connections Clear graphical interface with waveform and timer display modes 5-digit voltage and current display with minimum resolution of 1 mV, 1 mA Fast output response time: <50us The high current channel support remote voltage compensation sense function. The maximum compensation voltage is 0.6 V Overvoltage protection and overcurrent protection or safe and accurate operation Equipped with a 4.3-inch TFT-LCD display (480 x 272 resolution) USB and LAN standard communication USB-GPIB module is optional Excellent channel density with up to 4 channels in a 3U half rack package Internal data storage for setups and parameters Embedded Web Server with instrument communication that doesn’t require software installation Fully SCPI programming command set support as well as a LabView driver for remote control and system automation Specifications SPD4323X SPD4121X SPD4306X Channel Output CH1: Voltage 0 to 6 V Current 0 to 3.2 ACH2: Voltage 0 to 32 V Current 0 to 3.2 ACH3: Voltage 0 to 32 V Current 0 to 3.2 ACH4: Voltage 0 to 6 V Current 0 to 3.2 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 12 V Current 0 to 10 ACH3: Voltage 0 to 12 V Current 0 to 10 ACH4: Voltage 0 to 15 V Current 0 to 1.5 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 30 V Current 0 to 6 ACH3: Voltage 0 to 30 V Current 0 to 6 ACH4: Voltage 0 to 15 V Current 0 to 1 A Resolution 1 mV, 1 mA 1 mV, 1 mA 1 mV, 1 mA Setting Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Readback Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display Output power 240 W 285 W 400 W Included 1x Siglent SPD4306X Power Supply 1x Power cord (EU) 1x Output test cord (3 A) 1x USB cable 1x Quick start guide Downloads Datasheet Manual Quick start

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Open-netwerk weerstation mk2deel 1: inleiding en hardware-elementen AI voor beginners (1)objectherkenning met het Maixduino-board Universele triac-stuurmodule met ATmegaschakelen en dimmen van verschillende belastingen Hoe... iets van GitHub downloadenGitHub Voor Dummies My IoT-Button: de knop voor het netdeel 2: prototyping met board en cloud TMS0280 spraaksynthesizervreemde onderdelen Interactiefcorrecties & updates | vragen & antwoorden BASIC voor ESP32/ESP8266 (2)zandloper met ESP8266 en Annex WiFi RDS Developer’s Zonetips & trucs, vakkunstigheden en andere nuttige informatie BalBot: een zelfbalancerende robotmoderne versnellingssensoren vergemakkelijken de bouw Alle begin......hoeft niet zo moeilijk te zijn Wie het kleine niet eertuit de ideeënbus van Elektor Verzendbox met manipulatie-indicatiegegevens veilig met de post verzenden Nieuwe Nauwkeurige Nixie-klok: verbeteringentechnisch nieuwsbulletin voor nieuwe en bestaande enthousiaste gebruikers Multitasking met de ESP32 (3)software-timers Met de vos in het IoT (4)inrichten van het dashboard Start-up update: het Elektor Investment Program Review: Elektronische USB-belasting Joy-IT HD35test de belastbaarheid van USB-poorten CAN-bus + Arduino houden zonnepanelen in de gatenlokaliseer panelen in grote arrays die onderhoud nodig hebben Analoge elektronica ontwerpencase-study #1 – deel 3: optimalisatie van de responsie van de voorversterker en compromissen Sound Blinkdraagbare zelfbouwspeaker met LED-lichtshow USB-stroombewakingintelligente bescherming voor USB-poorten Oost West Lab Besteen blik in het allerheiligste, waar onbevoegden geen toegang hebben... Review: Labvoeding PeakTech 6080 Aveel voeding voor weinig geld Een grote uitdagingveilige producten in het IoT-tijdperk Elektor 1,2-GHz-universeelteller (1992/93)voorbij de magische 1GHz-grens Hexadoku

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Audio DSP FX Processor BoardPart 1: Features and Design 50 Years of Elektor in English KiCad 8Top New and Updated Features Elektor MultiCalculator KitAn Arduino-Based Calculator Kit for Electronic Purposes Low-Cost GNSS RTK SystemsWith Centimeter-Level Degree of Accuracy PCB Layout and SafetyHints for a Safe, Long-Life Design of Your Boards Opamp TesterFor Audio and Other Applications Project Update #4: ESP32-Based Energy MeterEnergy Monitoring with MQTT Real-Time Spectrum Analyzer with Waveguide Technology and Multi-Interface PCsAaronia Establishes New Product Segment and Presents First Prototypes at Electronica in Munich Applications of Ynvisible’s E-paper DisplaysTransform Businesses and Shape the Future SMT InductorsCoils and Ferrites — Selection Made Easy Arrow Electronics to Showcase Innovative Technologies at electronica 2024 Using EMI Shielding to Achieve Electromagnetic Compatibility Compliance The Ultimate Tool for Every Electronics EnthusiastUnlock Endless Possibilities with Red Pitaya and 1,000+ Click Boards™ V-LD1 Distance Radar Module Siglent Presents Its New Vector Network Analyzer Platform SNA6000A HDI in the MiddleA New Cost-Effective PCB Pooling Service for Tiny BGAs Remote Access IoT LabOne and Only Solution for Remote Learning and Development in Embedded Industry Challenges of DFM Analysis for Flex and Rigid-Flex Design From Life's ExperienceMicrotechnophobia 3D Christmas TreeA 3D PCB with a Low-Cost, 32-bit Microcontroller Starting Out in Electronics……Continues with the Opamp! An Autonomous Sensor Node (Project Update #1)Reducing Idle Power Consumption with External RTC and Power Switch 2024: An AI OdysseyA Look Back at the Future LED Displays with the MAX7219A Hands-On Approach to a Great Chip Err-lectronicsCorrections, Updates, and Readers’ Letters VibroTactile GlovesA Breakthrough for Parkinson’s Patients

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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. STM32 Wireless Innovation Design Contest Winners : les gagnants LC mètre en circuitétude de prototype AmpVolt : module de mesure de puissance (1)mesure de la puissance CC et de la consommation énergétique jusqu'à 50 V et 5 A Embedded world 2024 réparation d'équipements électroniquesoutils, techniques et conseils démarrer en électronique...plus de théorie sur les ampli-op un générateur de signaux simplePure synthèse numérique directe Sparkplug en un coup d'œilune spécification pour les données MQTT contrôleur de tube cathodique éclairage à commande radarcomment éclairer automatiquement un escalier en détectant une présence humaine niveau à bulle électronique et disque stroboscopique actif pour platines vinylerégler votre platine vinyle avec cet outil tout-en-un explorer les défis et la valeur commerciale de l’électronique open source le connecteur circulaire codé Aune solution de choix pour les applications industrielles The Arduino-Inside Measurement Labun instrument de test et de mesure 8 en 1 pour le labo d’électronique analyseur de gain-phase avec une carte sonpour les fréquences de 100 Hz à 90 kHz mesure du pH avec l'Arduino UNO R4vérifier la qualité de l'eau sur le vifdouble détente oscilloscope numérique FNIRSI 1014Dde bonnes performances pour des budgets serrés 2024 : l'odyssée de l'IAdétection d'objets générateur de référence 10 MHztrès précis, avec distributeur et isolation galvanique mise à jour #2 : compteur d'énergie basé sur l'ESP32quelques améliorations projet 2.0corrections, Mises à jour, et Courrier des lecteurs entretien avec Eben Upton, PDG de Raspberry PiRaspberry Pi 5 et au delà

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Temporary Delay in the Delivery of Unitree Robots Like many other suppliers, we are currently experiencing delays in the delivery of Unitree robots. A shipment from our supplier is currently held in customs, which has unfortunately led to later-than-planned deliveries for previously placed orders. We are actively working with our supplier to resolve this issue and expect more clarity soon, but at this time, we cannot provide any guarantees. Additionally, a new shipment is already on its way, though it will take some time to arrive. Since other suppliers are facing similar challenges, switching to a different provider is unlikely to result in a faster solution. Our top priority remains fulfilling existing orders. If you have any questions or would like to update your order, please do not hesitate to contact our customer service team. We will keep you informed of any further developments. Unitree Go2 series consists of quadruped robots for the research & development of autonomous systems in the fields of human-robot interaction (HRI), SLAM & transportation. Due to the four legs, as well as the 12DOF, this robot can handle a variety of different terrains. The Go2 comes with a perfected drive & power management system, which enables a speed (depending on the version) of up to 3.7 m/s or 11.88 km/h with an operating time of up to 4 hours. Furthermore, the motors have a torque of 45 N.m at the body/thighs and at the knees, which also allow jumps or backflips. Features Super Recognition System: 4D LIDAR L1 Max Running Speed: approx. 5 m/s Peak Joint Torque: approx. 45 N.m Wireless Module: WiFi 6/Bluetooth/4G Ultra-long battery Endurance: approx. 2-4 h (long battery life measured in real life) Intelligent Side-follow System: ISS 2.0 Specifications Tracking module: Remote-controlled or automatic tracking Front camera: Image tansmission Resolution 1280x720, FOV 120°, Ultra wide angle lens deliver rich clarity Front lamp: Brightly lights the way ahead 4D LiDAR L1: 360°x90° omnidirectional ultra-wide-angle scanning allows automatic avoidance with small blind spot and stable operation 12 knee joint motors: Strong and powerful, Beautiful and simple, Brandy new visual experience Intercom microphone: Effective communication with no scenario restrictions Self-retracting strap: Easy to carry and load things More stable, more powerful with advanced devices: 3D LiDAR, 4G ESIM Card, WiFi 6 with Dual-band, Bluetooth 5.2 for stable connection and remote control Powerful Computing Core: Motion controller, High-performance ARM processor, Improved Al algorithm processor, External ORIN NX/NANO Smart battery: Standard 8000 mAh battery, Long-endurance 15000 mAh battery, Protection from over-temp, overcharge and short-circuit Speaker for music play: Listen to music as your pleasure Unitree Go2 Variants The Go2 impresses not only with its technical capabilities, but also with a modern and slim design that gives it a futuristic look and makes it a real eye-catcher. The Go2 Air is specially designed for demos and presentations. With its basic features, it offers a solid basis for demonstrating the movement capabilities and functionality of a four-legged robot. Important: The Go2 Air is delivered without a controller. This can be purchased optionally. With a powerful 8-core high-performance CPU, the Pro and Edu offer impressive computing power required for complex tasks and demanding calculations. This enables faster and more efficient data processing and makes the Pro and Edu a reliable partner for your projects. From the Edu version onwards, the Go2 is programmable and opens up endless possibilities for developing and researching your own robotics applications. The Go2 is also able to handle a step height of up to 14 cm. This makes it an ideal tool for research, education and entry into the world of robotics. The Go2 Edu comes with a remote controller that gives you easy and intuitive control. You also get a docking station with impressive computing power of 100 TOPS, which is equipped with powerful AI algorithms and offers you technical support. Go2 Edu is equipped with a powerful 15000 mAh battery that gives it an impressive runtime of up to 4 hours. This long operating time allows the robot to carry out longer exploration missions and complete demanding tasks. Model Comparison Air Pro Edu/Edu Plus Dimensions (standing) 70 x 31 x 40 cm 70 x 31 x 40 cm 70 x 31 x 40 cm Dimensions (crouching) 76 x 31 x 20 cm 76 x 31 x 20 cm 76 x 31 x 20 cm Material Aluminium alloy + High strength engineering plastic Aluminium alloy + High strength engineering plastic Aluminium alloy + High strength engineering plastic Weight (with battery) about 15 kg about 15 kg about 15 kg Voltage 28~33.6 V 28~33.6 V 28~33.6 V Peaking capacity about 3000 W about 3000 W about 3000 W Payload ≈7 kg (MAX ~ 10 kg) ≈8 kg (MAX ~ 10 kg) ≈8 kg (MAX ~ 12 kg) Speed 0~2.5 m/s 0~3.5 m/s 0~3.7 m/s (MAX ~ 5 m/s) Max Climb Drop Height about 15 cm about 16 cm about 16 cm Max Climb Angle 30° 40° 40° Basic Computing Power N/A 8-core High-performance CPU 8-core High-performance CPU Aluminum knee joint motor 12 set 12 set 12 set Intra-joint circuit (knee) ✓ ✓ ✓ Joint Heat Pipe Cooler ✓ ✓ ✓ Range of Motion Body: −48~48° Body: −48~48° Body: −48~48° Thigh: −200°~90° Thigh: −200°~90° Thigh: −200°~90° Shank: −156°~−48° Shank: −156°~−48° Shank: −156°~−48° Max Torque N/A about 45 N.m about 45 N.m Super-wide-angle 3D LiDAR ✓ ✓ ✓ Wireless Vector Positioning Tracking Module N/A ✓ ✓ HD Wide-angle Camera ✓ ✓ ✓ Foot-end force sensor N/A N/A ✓ Basic Action ✓ ✓ ✓ Auto-scaling strap N/A ✓ N/A Upgraded Intelligent OTA ✓ ✓ ✓ RTT 2.0 Image Transmission ✓ ✓ ✓ App Basic Remote Control ✓ ✓ ✓ App Data Viewing ✓ ✓ ✓ App Graphical Programme ✓ ✓ ✓ Front Lamp (3 W) ✓ ✓ ✓ WiFi 6 with Dual-band ✓ ✓ ✓ Bluetooth 5.2/4.2/2.1 ✓ ✓ ✓ 4G Module N/A CN/GB CN/GB Voice Function N/A ✓ ✓ Music Playback N/A ✓ ✓ ISS 2.0 Intelligent side-follow system N/A ✓ ✓ Intelligent detection and avoidance ✓ ✓ ✓ Secondary development N/A N/A ✓ Manual controller Optional Optional ✓ High computing power module N/A N/A Edu: 40 TOPS computing power Edu Plus: 100 TOPS computing power NVIDIA Jetson Orin (optional) Smart Battery Standard (8000 mAh) Standard (8000 mAh) Long endurance (15000 mAh) Battery Life 1-2 h 1-2 h 2-4 h Charger Standard (33.6 V, 3.5 A) Standard (33.6 V, 3.5 A) Fast charge (33.6 V, 9 A) Included 1x Unitree Go2 Pro 1x Unitree Go2 Battery (8000 mAh) Downloads Documentation iOS/Android apps GitHub

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The DE-5000 is a smart, high-accurate, flexible and easy-to-use portable LCR meter. It features automatic LCR check, 4-wire Kelvin measurement, backlit display with 19999/1999 counts, multiple measurement modes and selectable test frequencies (100 Hz, 120 Hz, 1 kHz, 10 kHz or 100 kHz). The DE-5000 LCR meter is a practical helper for engineers or technicians. Features Auto L.C.R. check Ls/Lp/Cs/Cp/Rs/Rp/DCR with D/Q/θ/ESR measurement 4-wire Kelvin measurement 20,000 / 2,000 counts display Backlight Relative mode Series / Parallel modes Components sorting function Low battery indication Auto power off Specifications Test frequency 100 Hz / 120 Hz / 1 kHz / 10 kHz / 100 kHz Resistance range 20.000 Ω – 200.0 MΩ DCR range 200.00 Ω – 200.0 MΩ Capacitance range 200.00 pF – 20.00 mF Inductance range 20.000 µH – 2.000 KH Display (backlit LCD) 19999 / 1999 counts Selectable tolerance ±0.25%, ±0.5%, ±1%, ±2%, ±5%, ±10%, ±20% Power supply 9 V battery Dimensions 188 x 95 x 52 mm Weight 350 g (excluding battery) Included DE-5000 LCR meter Alligator test lead case (TL-21) AC/DC adaptor Guard line (TL-23) TL-22 SMD tweezers 9 V battery Carrying case Manual Downloads Datasheet

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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! Die Open-Source-Prozessorarchitektur RISC-V16 Boards und MCUs, die Sie kennen sollten Audio-Player mit FPGA und EqualizerTeil 1. Digitale Audiosignale mischen mit einem MKR Vidor 4000 von Arduino Laserkopf für Pico-basierte SanduhrZeichnen mit Licht Nehmen Sie teil am STM32 Edge AI Contest! Umweltüberwachung von Pflanzen mit mehreren SensorenDrahtlose Messung der Wasserversorgung und Lichtverhältnisse Maixduino: Automatischer KI-TüröffnerGesichtserkennung mit einer Kamera Embedded-Elektronik 2024KI wird die Branche neu definieren Ladungsbasiertes In-Memory Compute bei EnCharge AI KI-Inferencing bei 10-fach geringerer Leistungsaufnahme zu 20-fach geringeren Kosten Click-Board hilft bei der Entwicklung und dem Training von ML-Modellen für die Schwingungsanalyse Der Elektor Mini-WheelieEin Bausatz für einen selbstbalancierenden Roboter MCU, ich sehe dich!MCUViewer, ein Open-Source-Multiplattform-Debugging-Werkzeug USB-2.0-IsolatorGeräte galvanisch isoliert per USB verbinden Eingriff vor dem SchadenPredictive Maintenance in der Praxis SPoE - Elektromagnetische VerträglichkeitSingle-Pair mit Power-over-Ethernet im EMV-Fokus Retro-TechnikWie das Farbfernsehen eine neue Welt schuf EKG-MonitorMit Hexabitz-Modulen und einem STM32CubeMonitor Der Kampf um KI at the Edge HaLow erreicht Rekorddistanz von 16 km für WLAN bei 900 MHz Erster CHERI RISC-V-Embedded Chip und Early Access Programm Die dritte Generation der Waldbrandfrüherkennung nutzt Satellitenverbindungen Aus dem Leben gegriffenDie Qual der Wahl Aller Anfang......ist nicht schwer: Wir setzen die Filterung und Klangregelung fort. Riesen-LED-UhrNeuauflage eines Elektor-Klassikers Ein modularer Ansatz für die SensorprüfungDas Sensor Evaluation Board mit ESP32-S3 2025: Eine Odyssee in die KIDer Aufstieg der Basismodelle und ihre Rolle bei der Demokratisierung der KImocratizing AI Standalone MIDI-Synthesizer mit Raspberry PTeil 1: Eine Plattform für Edge-KI-Experimente vorbereiten Projekt 2.0Korrekturen, Updates und Leserbriefe CPU, GPU, DSP, FPGA; ein universeller KI-RISC-V-Prozessor kann alles! CEO-Interview: Ventivas dünne und kühle Technologie Dual-Core-Programmierung beim Raspberry Pi PicoEinstieg in die Welt der parallelen Programmierung

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The Elektor Low-Noise Lab Power Supply is a fully analogue, adjustable, medium-power symmetrical bench supply that contains no switching or digital components. It provides an output voltage adjustable between 0 V and ±22 V, and an output current adjustable from 0 A to 1 A. Because it avoids any form of switching circuitry, the design delivers extremely low noise. To display both output voltages and currents, four miniature moving-coil panel meters are used. Most modern laboratory power supplies and AC adapters employ switch-mode techniques. Even the best examples inevitably exhibit high-frequency ripple and other switching artefacts on their output, which can interfere with the testing of sensitive analogue circuits and disturb low-level measurements. To overcome this, the concept here is a completely analogue power supply. Although less efficient than its switch-mode counterparts, the reduced efficiency is of little importance for test-bench use and ensures cleaner, more reliable measurement results. Because many analogue circuits require a symmetrical supply, this design delivers positive and negative output voltages of equal magnitude. A small amount of adjustment is available to compensate for any imbalance. Naturally, a variable current-limit function is also included. The kit includes the components required to build the power supply, except for the transformers. Specifications Output Voltage 0…+22 V, 0, −22 V Output Current 0…+1 A, 0…−1 A Noise −85 dBV, (at 0.95 A/20 V, B = 22 kHz) −84 dBV (at 0.95 A/20 V, B > 500 kHz) Ripple 50 µVRMS (at 950 mA/20 V, B = 22 kHz, mainly 100 Hz component) Included 3x PCBs: Regulator (PCB-1), Mains Filter (PCB-2) and Transformer (PCB-3) All the components except the AC transformers 4x moving-coil meters Additional parts for wiring (wires, banana sockets, IEC Power entry module, etc.) Not included The three AC transformers An enclosure Parts List For the Regulator PCB (240386-1) Resistors (250 mW, 1%) R1 = 12 Ω R2, R8, R37, R62 = 1 MΩ R3, R7, R10, R13, R17, R20, R22, R30, R35, R42, R45, R47, R55, R60 = 100 Ω, 600 mW R4, R5 = 4.7 kΩ R6 = 100 kΩ R9, R12, R14, R36, R38, R39, R61, R63, R66, R72, R78, R79 = 10.0 kΩ, 600 mW R11 = 9.76 kΩ, 600 mW R15, R40 = 44.2 kΩ, 600 mW R16, R41, R77 = 1 kΩ R18, R43 = 1.5 kΩ, 1 W, 5% R19, R44 = 470 Ω, 1 W, 5% R21, R46 = 330 Ω, 600 mW R23, R24, R48, R49 = 1.0 Ω, 1 W R25, R50 = 1 kΩ, 1 W, 5% R26, R28, R51, R53 = 1.000 kΩ 0.1%, 15 ppm/C R27, R29, R52, R54 = 10.00 kΩ 0.1%, 15 ppm/C R31, R56 = 1.2 kΩ, 1 W, 5% R32, R57 = 47 kΩ R33, R58 = 270 Ω R34, R59 = 27 kΩ R64, R69 = 12.0 kΩ R65 = 3.0 kΩ, 600 mW R67, R80 = 470 Ω, 600 mW R68, R70 = 6.8 kΩ, 600 mW R71 = 30.0 kΩ,, 600 mW R73, R74, R75, R76 = 10 MΩ P1, P2, P3 = 10 kΩ, 200 mW, 20%, potentiometer, 1 turns, single, lin., panel mount P4, P5 = 500 Ω, 500 mW, 10%, trimmer, 25 turns, 3296Y-1-501LF Bourns P6, P7 = 10 kΩ, 500 mW, 10%, trimmer, 25 turns, 3296Y-1-501LF Bourns Capacitors C1 = 100 nF, 50 V, 10%, ceramic X7R, LS 5 mm C2, C3, C6, C7, C30 = 10 µF, 63V, 20%, LS 2.5 mm, 3000hours@105°C C4, C5, C8, C9, C13, C14, C18, C19, C23, C24, C28, C29, C31, C32, C38, C39 = 100 nF, 250 V, 10%, PET, LS 7.5 mm C10, C20 = 47 nF, 100 V, 5%, PET, LS 5 mm C11, C21 = 10 nF, 100 V, 5%, PET, LS 5 mm C12, C22 = 220 µF, 35 V, 20%, 0.024 Ω, LS2.5/3.5 mm, Ir 3.4 A, 2000hours@125°C, polymer C15, C25 = 120 µF, 50 V, 20%, ESR 0.02 Ω, Diam. 10 mm max., LS 5 mm C16, C26 = 15 nF, 100 V, 5%, PET, LS 5 mm C17, C27 = 47 nF, 100 V, 5%, PET, LS 5 mm C33, C34 = 22 µF, 50 V, 20%, LS 2 mm, 10000 hours @ 105°C C35, C36, C44, C45 = 1 µF, 100 V, 10%, LS 5 mm, ceramic X7R C37 = 100 uF, 50 V, 20%. LS 3.5 mm C40, C41, C42, C43, C46, C47, C48, C49 = 1000 µF, 50 V, 20%, LS 5/7.5 mm, Ir 3.32 A, 10000hours@105°C, D 16 mm C50, C51, C52, C53 = 47 nF, 100 V, 10%, ceramic X7R, LS 5 mm Inductors L1, L2 = 4.7 µH, 3.2 A, 0.033 Ω, LS 5 mm, RLB0914-4R7ML Bourns L3 = Commom mode choke, 14.5 mH, 3 A, SSRH24NH-30145 Kemet Semiconductors D1, D2, D3, D4, D5, D9, D10, D11, D15 = BAT85, DO-34 D6, D7, D12, D13 = SR560, DO-201AD D8, D14, D16 = 1N4148, DO-35 D17 = Zenerdiode, 5.6 V, 0.5 W, DO-41 D18, D19 = 1N4004, DO-41 D20, D21 D22, D23 = V30100CI-M3/P, dual common cathode, TO-220 D24 = Zener diode, 30 V, 1 W, DO-41 LED1, LED2 = LED, red, T-1 (3 mm) LED3, LED4 = LED, green, T-1 (3 mm) TVS1, TVS2 = BZW50-33B, R6 T1, T2, T4 = BC337.25, TO-92 T3 = NJW0302G, TO-3P T5, T6, T8 = BC327.25, TO-92 T7 = NJW0281G, TO-3P T9 = BD139, TO-126 (SOT-32) IC1 = LM334Z, TO-92 IC2 = LM4040AIZ-5.0/NOPB, TO-92 (TO-226AA-3) IC3, IC4 = OPA2992IDR, SOIC-8 IC5, IC6 = OPA4992IDR, SOIC-14 IC7 = OPA992IDBVR, SOT-23-5 IC8 = LM339N, DIP-14 IC9 = LM317, TO-220 IC10 = LM337, TO-220 Others F1, F2 = 5×20 mm fuse, 1.6 A, fast acting HS1, HS2 = Heatsink MC33271 (for T3/T7), 2.7°C/W, PCB mount, height 63.5 mm K1, K4 = 3-way screw terminal block, LS 3.5 mm, max. 1.5 mm² K2, K3 = 3-way screw terminal block, LS 3.5 mm, max. 1 mm² M1, M3 = Moving coil meter, Range 30 V, type 91C4, 45×45 mm M2, M4 = Moving coil meter, Range 1 A, type 91C4, 45×45 mm² RE1 = Relay DPDT,5V, UA2-5NU Miscellaneous 3× 3-way screw terminal block, LS 3.5 mm, max. 1 mm² (for P1, P2, P3) 4× Pin header, 1×2, vertical, pitch 2.54 mm (for LED1, LED2, LED3, LED4) 4× Pin socket, 1×2, vertical. pitch 2.54 mm (for LED1, LED2, LED3, LED4) 2× Heatsink FK222SA220, 20°C/W, PCB mount (for IC9 & IC10) 2× Mica thermal pad for TO-220, 12×18×0.05 mm (for IC9 & IC10) 2× Insulating bushing IB 6, TO-220 (for IC9 & IC10) 2× Ceramic thermal pad, 23×20×2 mm (for T3 & T7) 2× PCB Fuse Holder, for 5×20 mm fuse, 10 A (for F1, F2) 2× Cover for PCB Fuse Holder, transparent (for F1, F2) 2× 2-way screw terminal block, LS 3.5 mm, max. 1 mm² (for M1 & M3) 2× 2-way screw terminal block, LS 3.5 mm, max. 1.5 mm² (for M2 & M4) 8× M3 solder lug, thickness 0.35 mm (for M1…M4) M4 solder lug, thickness 0.35 mm (to connect 4 mm banana connectors) Screened cable, 1 pair, 2×24 AWG/0.22 mm², 1 m (for P1, P2 & P3) IC socket, DIP, 14 contacts (for IC8) M3 washer, plain, steel M3 screw, 16 mm, steel, pan head M3 nut M3 spring washer 50 mm M3 standoff, steel, male-female 12 mm M3 standoff, steel, male-female 10 mm M3 standoff, steel, male-female M3 screw, 8 mm, steel, pan head For the Mains Fiter PCB (240386-2) Resistor R1 = 220 kΩ, 1 W, 500 V, 5% Capacitors C1, C2 = 470 nF, 305 VAC, Class X2, 11 × 27 mm max., LS 15/22.5 mm C3, C4, C5, C6 = 2.2 nF, 300 VAC, Class Y2, 13 × 4 mm, LS 10 mm, PP Inductors L1, L2 = Common-mode choke, 6.8 mH, 1.7 A, TDK B82732R2172B030 Semiconductor MOV1 = TVS varistor, 300 VAC, S14K300 (230 VAC, B72214S0301K101) and SK14K150 (150 VAC, B72214S0151K101) Others K1, K2 = 3-way screw terminal block, LS 7.62 mm F1 = Time-delay fuse, 0.5 A (230 VAC) or 1 A (115 VAC) Miscellaneous 1× Fuse holder, 5×20 mm, 10 A, 500 VAC 1× Transparent fuse cover 4× 10 mm M3 standoff, steel, male–female 4× M3 screw, 8 mm, steel, pan head 4× M3 nut For the Transformer PCB (240386-3) Resistors R1, R2 = 2.7 kΩ, 600 mW, 1% R3 = 10.0 kΩ, 600 mW, 1% Capacitor C1 = 220 µF, 50 V, 20%, Ø10 mm, LS 5 mm, 4000 h @ 105°C Transformers (not included in this kit!) TR1, TR2, TR3 = 2×7 V, 25 VA, PCB-mounted toroid, 70060K Talema Semiconductors D1–D4 = 1N4148, DO-35 D5, D6 = 1N4004, DO-41 D7 = Zener 5.6 V, 1.3 W, DO-41 LED1 = LED, red, T-1 (3 mm) IC1, IC2 = MOC8021M, CTR ≥ 1000%, DIP-6 Others F1, F2, F3 = 160 mA time-delay fuse (230 VAC) or 315 mA time-delay fuse (115 VAC) K1 = 2-way screw terminal block, LS 7.62 mm K2 = 3-way screw terminal block, LS 3.5 mm, max 1.5 mm² K3, K4 = 3-way screw terminal block, LS 3.5 mm, max 1 mm² RE1, RE2 = Relay DPDT, 5 A/250 VAC / 24 VDC Miscellaneaous 1× Pin header 1×2, pitch 2.54 mm + matching socket for LED1 3× Fuse holder 5 × 20 mm, 10 A, 500 VAC + transparent cover 3× M4 screw, 8 mm, pan head + washer for TR1-TR3 8× M3 screw, 8 mm, pan head + nut + washer 8× 10 mm M3 standoff, steel, male–female 2× IC socket, DIP-6 for IC1 & IC2 Additional Parts 1 m red insulated wire, stranded, 1.5 mm² 0.5 m blue insulated wire, stranded, 1.5 mm² 0.5 m black insulated wire, stranded, 1.5 mm², 0.5 m 2 m red insulated wire, stranded, D 0.56 mm (0.25 mm²) 2 m black insulated wire, stranded, D 0.56 mm (0.25 mm²) 0.5 m Multicore Cable, Flexible, 3 Core, 0.75 mm² (24 x 0.2 mm) Red banana socket Black banana socket Blue banana socket Green banana socket IEC Power Entry Module with switch, IEC C14 3 crimp terminals, FASTON, 4.75 x 0.81 mm 3 knobs Links Elektor Labs JumpStarter Page Article (Part 1) Article (Part 2)

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Kick off with the MAX1000 and VHDPlus Ready to Master FPGA Programming? In this guide, we’re diving into the world of Field Programmable Gate Arrays (FPGAs) – a configurable integrated circuit that can be programmed after manufacturing. Imagine bringing your ideas to life, from simple projects to complete microcontroller systems! Meet the MAX1000: a compact and budget-friendly FPGA development board packed with features like memory, user LEDs, push-buttons, and flexible I/O ports. It’s the ideal starting point for anyone wanting to learn about FPGAs and Hardware Description Languages (HDLs). In this book, you’ll get hands-on with the VHDPlus programming language – a simpler version of VHDL. We’ll work on practical projects using the MAX1000, helping you gain the skills and confidence to unleash your creativity. Get ready for an exciting journey! You’ll explore a variety of projects that highlight the true power of FPGAs. Let’s turn your ideas into reality and embark on your FPGA adventure – your journey starts now! Exciting Projects You’ll Find in This Book Arduino-Driven BCD to 7-Segment Display Decoder Use an Arduino Uno R4 to supply BCD data to the decoder, counting from 0 to 9 with a one-second delay Multiplexed 4-Digit Event Counter Create an event counter that displays the total count on a 4-digit display, incrementing with each button press PWM Waveform with Fixed Duty Cycle Generate a PWM waveform at 1 kHz with a fixed duty cycle of 50% Ultrasonic Distance Measurement Measure distances using an ultrasonic sensor, displaying the results on a 4-digit 7-segment LED Electronic Lock Build a simple electronic lock using combinational logic gates with push buttons and an LED output Temperature Sensor Monitor ambient temperature with a TMP36 sensor and display the readings on a 7-segment LED Downloads Software

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