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Inhalt Röhrentechnik iPod-Röhrenverstärker Opus 2: Hybrid-Technik mit Silizium-Vorstufe Single Ended mit 2x 2 Watt: Minimalistisches Design mit Triode Der General II: Eine 300B-Version mit interner Trafo-Kopplung Experimenteller 30-W-Röhrenverstärker: Ein Entwurf – viele Varianten Vielseitiger Gitarrenverstärker: Röhrenbestückte Klangmaschine Hybrider Leistungsverstärker: Ultralinearschaltung mit EL34 und Operationsverstärker Crownstone Tubecharger: Gitarrenverstärker im Retro-Design Lautsprecher Pipeline: Das ganz spezielle Line Array Nescio: Aktiv mit Hypex-DSP Synchron Center und Rear: MTM-Design für die Home-Cinema-Fraktion und der passende kleine Bruder dazu 261-PA: Zwei 6-Zöller plus Kalotte und HiFi-Abstimmung Tura: Mission mal unübersehbar anders Quintett: Edles von Visaton mit sechsfacher Bestückung Halbleitertechnik Entstörung von Röhrenverstärkern: Die Tipps gegen Brummen, Knistern und Rauschen 600 Watt Pure Path: Kompletter Verstärker mit dem ganz besonderen Chip von Texas Instruments

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This complete ESP32 microcontroller programming course features a textbook, a component kit, hands-on projects, and a comprehensive online course with simulations. It is ideal for step-by-step learning of embedded systems programming with Arduino using a practical, hands-on approach. A Practical Introduction to Embedded Systems with the ESP32 This course is designed for people who are new to embedded systems and looking for a structured, example-driven way to get started. A kit of parts comprising LEDs and resistors, switches, sensors and actuators, displays, a breadboard and wires, and more is included. These are used in the course to illustrate example applications. No prior experience with Arduino or embedded development is required. Each section features hands-on examples and mini projects designed to reinforce key concepts and inspire deeper exploration. By the end of the course, you’ll be able not only to reproduce the examples but also to build on them with your own ideas and applications. What Will You Learn? Microcontroller programming with the ESP32 using the Arduino IDE Working with Digital I/O, read buttons and encoders, control LEDs and relays Read analog inputs, voltages, and analog sensors Generating analog output signals and PWM Use serial communication like UART, I²C and SPI to control displays and read digital sensors and SD cards Managing time Working with interrupts Real-time sensor input and control via buttons, LEDs, and displays Control actuators like relays and servo motors Who Is It For? Students and self-learners exploring embedded systems Makers and IoT enthusiasts looking to improve their hardware skills Educators and trainers seeking ready-to-teach material What's Inside the Box? Access to the full course on the Elektor Academy Pro Learning Platform ESP32 microcontroller board + USB cable Book: Programming Microcontrollers in C/C++ Using Arduino Downloadable project files for every module Component Box: 2× LED, red, 5 mm LED, green, 5 mm 3× Resistor, 470 Ω, 0.25 W LDR Potentiometer, 10 kΩ, linear Pushbutton Rotary encoder module Relay module DHT22 Humidity & Temperature Sensor TM1637-compatible 4-digit 7-segment display MPU-6050 IMU with headers SSD1306-compatible I²C OLED display Micro SD card adapter with header Buzzer SG90 Micro Servo ILI9341-compatible SPI 240×320 TFT display 20× Jumper wires Breadboard All Programming Courses (and differences in content) Course Arduino Raspberry Pi Pico with Arduino C/C++ ESP32 with Arduino C/C++ Raspberry Pi Pico with MicroPython ESP32 with MicroPython Online Course Access to Arduino Course Access to Pico with Arduino C/C++ Course Access to ESP32 with Arduino C/C++ Course Access to Pico with MicroPython Course Access to ESP32 with MicroPython Course Board Uno R3 Raspberry Pi Pico ESP32 Raspberry Pi Pico ESP32 Book Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in C/C++ Using Arduino Programming Microcontrollers in MicroPython Programming Microcontrollers in MicroPython Kit 40-piece Component Box 40-piece Component Box 40-piece Component Box 40-piece Component Box 40-piece Component Box

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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. Low-noise laboratorium voeding (1)Een stabiele voedingsbron voor gevoelige circuits STM32 Edge-AI Contest 2025: De winnaars Batterijen van vandaagTechnologie en verschillen in lithiumbatterijen Instelbare elektronische belastingStatische en dynamische DC-belasting Step-down converter van 48 V naar 5 VHet verhaal achter de ontwikkeling van een schakeling Autonome sensornode v2.0Deel 2: Hardware-validatie en vermogensoptimalisatie VaristorenVreemde onderdelen Grafische netfrequentiemeterControleer de kwaliteit van het stroomnet Alle begin......maakt er een eind aan Piekstroombelasting SMD-ferrietenBeter bestand tegen stroompieken Elektor Live! Expert Day 2025 Energy harvesting belooft de implementatie van IoT- en IIoT-toepassingen te zullen versnellenHoe energy harvesting IoT loskoppelt van het stroomnet Fnirsi DPS-150Compacte draagbare voeding en converter Instelbare USB-C voedingsbronMaak van uw USB-C-lader een regelbare voeding Eenvoudige lader en capaciteitstesterMet twee goedkope kant-en-klaar modules Slimme kleurendetector met AI-stem en afspeelfunctie PbMonitor v2.0Overzicht van het vernieuwde accu-bewakingssysteem Een ventilator voor de mini-reflow plateSlimme aanpassingen die de resultaten verbeteren Uit het leven gegrepende tsunami der verwendheid Err-lectronicsCorrecties, updates en lezersbrieven 2026: Een AI-odysseeWanneer modellen de hardware bepalen Precisie pico-ampèremeter (2)Montage, kalibratie en test Draadloze energievoorziening van apparatenMet inductieve technologie Autonoom rijden op basis van AIDe Self Driving Challenge 2024 van de RDW Geluidskaart als signaalgeneratorPC als DCF77-testzender

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Program and Build Raspberry Pi 5 Based Ham Station Utilities with the RTL-SDR The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their very low cost and rich features. A basic system may consist of a USB based RTL-SDR device (dongle) with a suitable antenna, a Raspberry Pi 5 computer, a USB based external audio input-output adapter, and software installed on the Raspberry Pi 5 computer. With such a modest setup, it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is aimed at amateur radio enthusiasts and electronic engineering students, as well as at anyone interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is suitable for both beginners through experienced readers. Some knowledge of the Python programming language is required to understand and eventually modify the projects given in the book. A block diagram, a circuit diagram, and a complete Python program listing is given for each project, alongside a comprehensive description. The following popular RTL-SDR programs are discussed in detail, aided by step-by-step installation guides for practical use on a Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X The application of the Python programming language on the latest Raspberry Pi 5 platform precludes the use of the programs in the book from working on older versions of Raspberry Pi computers.

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Elektronik & Modellbahn 3 (PDF)

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Using the RFID Starter Kit An Arduino board has now become ‘the’ basic component in the maker community. No longer is an introduction to the world of microcontrollers the preserve of the expert. When it comes to expanding the capabilities of the basic Arduino board however, the developer is still largely on his own. If you really want to build some innovative projects it’s often necessary to get down to component level. This can present many beginners with major problems. That is exactly where this book begins. This book explains how a wide variety of practical projects can be built using items supplied in a single kit together with the Arduino board. This kit, called the 'RFID Starter Kit for Arduino' (SKU 17240) is not just limited to RFID applications but contains more than 30 components, devices and modules covering all areas of modern electronics. In addition to more simple components such as LEDs and resistors there are also complex and sophisticated modules that employ the latest technology such as: A humidity sensor A multicolor LED A large LED matrix with 64 points of light A 4-character 7-segment LED display An infra red remote-controller unit A complete LC-display module A servo A stepper motor and controller module A complete RFID reader module and security tag On top of that you will get to build precise digital thermometers, hygrometers, exposure meters and various alarm systems. There are also practical devices and applications such as a fully automatic rain sensor, a sound-controlled remote control system, a multifunctional weather station and so much more. All of the projects described can be built using the components supplied in the Elektor kit.

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The Elektor Super Servo Tester can control servos and measure servo signals. It can test up to four servo channels at the same time. The Super Servo Tester comes as a kit. All the parts required to assemble the Super Servo Tester are included in the kit. Assembling the kit requires basic soldering skills. The microcontroller is already programmed. The Super Servo Tester features two operating modes: Control/Manual and Measure/Inputs. In Control/Manual mode the Super Servo Tester generates control signals on its outputs for up to four servos or for the flight controller or ESC. The signals are controlled by the four potentiometers. In Measure/Inputs the Super Servo Tester measures the servo signals connected to its inputs. These signals may come from for instance an ESC, a flight controller, or the receiver or another device. The signals are also routed to the outputs to control the servos or the flight controller or ESC. The results are shown on the display. Specifications Operating modes Control/Manual & Measure/Inputs Channels 3 Servo signal inputs 4 Servo signal outputs 4 Alarm Buzzer & LED Display 0.96' OLED (128 x 32 pixels) Input voltage on K5 7-12 VDC Input voltage on K1 5-7.5 VDC Input current 30 mA (9 VDC on K5, nothing connected to K1 and K2) Dimensions 113 x 66 x 25 mm Weight 60 g Included Resistors (0.25 W) R1, R3 1 kΩ, 5% R2, R4, R5, R6, R7, R9, R10 10 kΩ, 5% R8 22 Ω, 5% P1, P2, P3, P4 10 kΩ, lin/B, vertical potentiometer Capacitors C1 100 µF 16 V C2 10 µF 25 V C3, C4, C7 100 nF C5, C6 22 pF Semiconductors D1 1N5817 D2 LM385Z-2.5 D3 BZX79-C5V1 IC1 7805 IC2 ATmega328P-PU, programmed LED1 LED, 3 mm, red T1 2N7000 Miscellaneous BUZ1 Piezo buzzer with oscillator K1, K2 2-row, 12-way pinheader, 90° K5 Barrel jack K4 1-row, 4-way pin socket K3 2-row, 6-way boxed pinheader S1 Slide switch DPDT S2 Slide switch SPDT X1 Crystal, 16 MHz 28-way DIP socket for IC2 Elektor PCB OLED display, 0.96', 128 x 32 pixels, 4-pin I²C interface Links Elektor Magazine Elektor Labs

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The software simulation of gauges, control-knobs, meters and indicators which behave just like real hardware components on a PC’s screen is known as virtual instrumentation. In this book, the Delphi program is used to create these mimics and PIC based external sensors are connected via a USB/RS232 converter communication link to a PC. Detailed case studies in this Book include a virtual compass displayed on the PC’s screen, a virtual digital storage oscilloscope, virtual -50 to +125 degree C thermometer, and FFT sound analyser, a joystick mouse and many examples detailing virtual instrumentation Delphi components. Arizona’s embedded microcontrollers – the PIC's are used in the projects and include PIC16F84A, PIC16C71, DSPIC30F6012A, PIC16F877, PIC12F629 and the PIC16F887. Much use is made of Microchip’s 44 pin development board (a virtual instrument ‘engine)’, equipped with a PIC16F887 with an onboard potentiometer in conjunction with the PIC’s ADC to simulate the generation of a variable voltage from a sensor/transducer, a UART to enable PC RS232 communications and a bank of 8 LED's to monitor received data is also equipped with an ISP connector to which the ‘PICKIT 2’ programmer may easily be connected. Full source code examples are provided both for several different PIC’s, both in assembler and C, together with the Pascal code for the Delphi programs which use different 3rd party Delphi virtual components.

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308 Schaltungen – das zehnte Buch innerhalb der „Dreihunderter-Reihe“. 308 Schaltungen und neue Konzepte in einem Buch sind ein (fast) unerschöpflicher Fundus zu allen Bereichen der Elektronik: Audio & Video, Spiel & Hobby, Haus & Hof, Prozessor & Controller, Messen & Testen, PC & Peripherie, Stromversorgung & Ladetechnik sowie zu Themen, die sich nicht katalogisieren lassen. 308 Schaltungen – enthält viele komplette Problemlösungen, zumindest aber die Idee hierzu. Nicht zuletzt sind die 308 Schaltungen der Anstoß zu ganz neuen Überlegungen. 308 Schaltungen – sind eine Zusammenfassung der Beiträge aus den Halbleiterheften 2000 bis 2002. Die Halbleiterhefte sind die jährlichen Doppelausgaben Juli/August der Zeitschrift Elektor. 308 Schaltungen ist das Buch für alle, die kreativ mit der Elektronik umgehen; sei es im Beruf oder als Hobby.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Raspberry Pi Pico as Spectrum AnalyzerFFTs on a Low-Cost Hardware Basis ±40-V Linear Voltage RegulatorAn Alternative Power Supply for the Fortissimo-100 Power Amplifier… and Others! MCU Wireless Communication Made FlexibleEEPROM Opens Networking Prospects for Wireless MCUs €5,000 up for grabs!Join the STM32 Wireless Innovation Design Contest 2023: An AI OdysseyGetting Started with ChatGPT’s Code Interpreter LoRa, a Swiss Army Knife (1)The LoRa Protocol and Its Advantages Adjustable Current Sink with Integrated Clock GeneratorTest Power Supplies, Voltage Converters and Batteries Two New Arduino UNO R4 Boards: Minima and WiFi Logarithmic PotentiometersThey’re Exponential! Motor Driver Breakout BoardA BoB for a 5 A DC Motor Driver with a 3×3 mm Size From Life’s ExperienceHazardous Electronics Is Cellular the Lowest-Power Option for IoT?LTE-M and NB-IoT Energy Requirements in LPWAN Deployments Wireless Communication in IoT Systems – Using Arduino MKR ModulesThe Right Board for Wi-Fi, LoRa, and Many More Standards AC Losses in Magnetic ComponentsAvoid Hot Inductors! Measurement for Optimal Cloud Deployment Matter Adoption: What does it take to deploy Matter devices? YARD Stick OneA Sub-1 GHz Wireless Test Tool Latching RelaysPeculiar Parts, the Series PIC O’Clock – In Touch with TimeDesigning an SDR Time Signal Receiver Due Diligence DirectiveBusiness as Usual Will Not Do Starting Out in Electronics……Voltage Amplification Infrasound Recorder with the Arduino Pro MiniA Sample Project from Elektor’s “Arduino & Co.” Book Cloud-Based Energy MeterWith ESP32 Module and PZEM-004T Voltage/Current Sensor A Bare-Metal Programming Guide (Part 2)Accurate Timing, the UART, and Debugging Hexadoku

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Für viele Audiopuristen sind Röhrenverstärker noch immer – oder wieder erneut – das Nonplusultra in der Audioverstärkertechnik überhaupt. Gutes Aussehen gepaart mit einem unübertroffenen Klangerlebnis – so die Meinung vieler Audiofreaks – sind hierfür ausschlaggebend. Tatsächlich erleben seit vielen Jahren die "totgesagten Röhren" eine für viele unerwartete Renaissance; das gilt im professionellen als auch im Hobbybereich. Die Kombination von klassischer Technik mit modernen Komponenten haben zur Wiederbelebung der Röhrenverstärker beigetragen; so auch der durch den Autor entwickelte "Ringkern-Ausgangstransformator". Über das Wie und Warum solcher Ausgangsübertrager gibt das Buch ausreichend Auskunft. Dazu zählen Begriffserläuterungen und auch die genaue technische Funktionsbeschreibung in Zusammenarbeit zwischen Röhren, Ausgangstransformator und Lautsprecher. Schließlich folgen noch komplette Baubeschreibungen: vom einfachen 10-W- bis zum Highend-100-W-Röhrenverstärker. Dieses E-Buch beschreibt innovative Lösungen für eine perfekte Audioqualität. Sowohl der Pragmatiker, der sein Gerät selbst baut, wie auch der Theoretiker, den die Komplexität von Transformatoren, Röhrenverstärkern und die Verarbeitung von Audiosignalen interessiert, finden Gefallen an diesem Buch.

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Programmieren mit GNU Radio HackRF ist eine Open-Source-Entwicklung von Great Scott Gadgets und dient als vielseitiges Frontend für Software Defined Radio (SDR). Mit HackRF One und dem Nachfolger HackRF Pro lassen sich eigene SDR-Anwendungen entwickeln, leistungsfähige Empfänger und Sender aufbauen sowie anspruchsvolle Aufgaben der HF-Messtechnik realisieren. Dieses Buch eröffnet einen praxisnahen Einstieg in die Welt des Software Defined Radio. Schritt für Schritt zeigt der Autor, wie sich mit HackRF leistungsfähige SDR-Projekte umsetzen lassen – von den Grundlagen der HF-Technik bis hin zu anspruchsvollen Anwendungen mit GNU Radio. Neben dem Umgang mit SDR Sharp (SDR#), RadioConda und GNU Radio vermittelt das Buch auch die Grundlagen moderner digitaler Signalverarbeitung. Zahlreiche Experimente und leicht nachvollziehbare Praxisbeispiele führen durch Themen wie AM-, FM- und SSB-Empfang, digitale Filter, Kurzwelle, Amateurfunk, Messsender und eigene HF-Projekte bis 6 GHz. Ob Maker, Funkamateur, Elektronik-Enthusiast oder SDR-Einsteiger – dieses Buch vermittelt fundiertes Wissen, praxisnahe Anwendungen und die Motivation, die Möglichkeiten moderner SDR-Technik kreativ auszuschöpfen.

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