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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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Raspberry Pi goes Industry (E-book)

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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. USB-meetadaptertest stroom en signaalkwaliteit van USB-poorten 4...20 mA stroom-uitgang voor Arduino Unobetrouwbare, EMI-ongevoelige current loop-interface Automatische stofzuigerschakelaarhoud uw werkplek schoon DDS-generator met ATtiny Opamp-tester v2nieuwe print – nu ook voor SMD’s 550-mW audio ‘Lamp-Amp’voor die warme buizenklank Zekeringbewakerhoud zekeringen in de gaten met een knipper-LED Hoogwaardige RIAA-voorversterkerhaal het beste uit uw vinylplaten! Kalibratie voor draaitafelsArduino-gebaseerde 100/120Hz-stroboscoop Elektor Classics: Video-versterker Dimmer met IR-afstandsbedieningcomfortabel en elegant staande halogeen- of LED-lampen regelen Het gebruik van switch…case bij strings in C++/Arduino IDE Magneetzoekermet een eenvoudige Hall-effect-sensor Raspberry Pi: slimme aan/uit-knopeen oplossing voor de Raspberry Pi tot aan model 4 Professionele tipsvan makers voor makers Praktische projecten met de 555-timerDC-motorbesturing en snelle reactie-uitdaging Eenvoudige ‘aan-verklikker’spaar energie met een simpele schakeling Powerpacks parallelschakelendrie dagen ononderbroken stroom VFO tot 15 MHzimplementatie met Raspberry Pi Pico Vioolstemmer met ATtiny202 Elektor Classics: Video-ingangsversterker voor zwart/wit-TV Capaciteitsmeter20 pF tot 600 nF Quasi-analoog uurwerk Mk IItwee LED-ringen – voor uren en minuten Niets is onmogelijk(met hulp van het Arduino-ecosysteem) Neon dobbelsteen Elektor Classics: RTTY-afstemhulp Inspirerende hardware-ontwerpen voor uw ESP’s Elektor Classics: 3 A voeding RGB-LED’s met geïntegreerde stuurkringlicht met precisie: ICLED’s zetten de standaard Experiment: een mixed-signal Theremin?moderne time-of-flight sensoren plus de tijdloze analoge XR2206 ESP32 audio-transceiver (deel 1)SD-kaart WAV-speler demo Elektor infographicschakelingen en schakelingontwerp 2025 Kleine audiomixereenvoudig, veelzijdig en schaalbaar Slimme timer voor trapverlichtingbespaar op uw energierekening! Maak uw rolluiken slimmerVelux-hardware besturen met een ESP32 en MQTT Solid-state voetenwarmercomfortabel en energiezuinig Is de M5Stamp Fly-quadcopter de nieuwe Tello? Vergroot het WiFi-bereik van de ESP32-C3 SuperMinieenvoudige en effectieve antennemodificatie ZD-8968 hetelucht-soldeerstationbudgetvriendelijk werkpaard of gebakken lucht? Parkeersensor-testervind defecten in het PDC-systeem van een auto

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Bauen Sie Ihre perfekte Wetterstation oder forschen Sie zusammen mit der ganzen Welt an Umweltdaten. Mit vielen praktischen Projekten für Arduino, Raspberry Pi, NodeMCU, ESP32 und weiteren Developmentboards. Wetterstationen erfreuen sich seit Jahrzehnten großer Beliebtheit. Ob in aktuellen oder längst eingestellten Elektronik-Magazinen – regelmäßig finden sich Beiträge zum Eigenbau einer Wetterstation. Im Laufe der Jahre wurden diese Systeme immer ausgefeilter und können heute nahtlos in das Smart Home integriert werden. Allerdings erfordert dies oft die Bindung an einen (teuren) Markenhersteller, der sämtliche Komponenten abdeckt. Mit Ihrer eigenen Wetterstation können Sie jedoch mühelos mithalten – und sogar Messwerte erfassen, die kommerzielle Geräte nicht bieten. Dabei kommt der Spaß nicht zu kurz: Sie erweitern spielerisch Ihr Wissen über Elektronik, moderne Mikrocontroller-Developmentboards und Programmiersprachen. Schon für weniger als zehn Euro können Sie erste Umweltdaten erfassen und Ihr System Schritt für Schritt mit wachsendem Interesse weiter ausbauen. Aus dem Inhalt: Wind und Wetter auf der Spur Wetterdisplay mit OpenWeatherMap und Vakuum-Fluoreszenzanzeige Flüchtige organische Verbindungen in der Atemluft Mit MQ-Sensoren arbeiten: Kohlenmonoxid messen – geruchlos aber extrem giftig CO2-Ampel mit ThingSpeak-IoT-Anbindung Ein Gießautomat für Ihre Pflanzen Gutes Raumklima: Temperatur und Luftfeuchtigkeit sind wichtige Kriterien Schickes Thermometer mit alter Röhrentechnik Nostalgisches Wetterhäuschen für die ganze Familie Luftdruck und Temperatur genau messen Sonnenbrand-Warngerät DIY-Sensor für die Sonnenscheindauer Das Smartphone zeigt’s an: Nebel oder klare Sicht? Erdbeben erkennen Pegelstände von Gewässern und Behältern pH-Wert von Gewässern bestimmen Radioaktive Strahlung erkennen Mit GPS wissen Sie weltweit, wo ihr Sensor ist Logdateien mit Zeitstempel auf SD-Karten speichern LoRaWAN, The Things Network und ThingSpeak LoRaWAN-Gateway für TTN betreiben Mega-Display mit Wettervorhersage

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With Examples for Raspberry Pi Pico and ESP32 Creating and programming small electronic systems is now easier than ever before. With inexpensive development boards and modern software tools, anyone curious about embedded design can quickly move from an idea to a working piece of hardware. At the heart of this change is MicroPython—a clear, interactive, and beginner-friendly way to program microcontrollers while still remaining closely connected to the underlying electronics. This book introduces embedded programming through MicroPython on popular platforms such as the Raspberry Pi Pico and the ESP32. You will discover how to use microcontrollers for reading inputs, processing data, and controlling outputs in a predictable, real-time loop. With just a few lines of code, you can blink LEDs, read sensors, drive motors, and communicate with the outside world. The interactive REPL programming interface encourages experimentation and fast learning, making concepts tangible from the very first chapter. While different boards offer different capabilities, they all share the same core principles. Timers, GPIO, analog I/O, PWM, interrupts, and communication interfaces form the foundation of every embedded system. By focusing on these universal building blocks, this book helps you build skills that transfer across platforms and scale naturally toward more advanced development. Whether you are a beginner or an experienced programmer entering embedded systems, you will find that working with MicroPython is both practical and genuinely enjoyable.

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The SEQURE HT140 is a highly versatile 2-in-1 soldering tool that combines the functionality of hot tweezers and a soldering iron. It is specifically engineered for precise SMD soldering and desoldering tasks. With independent control for single-sided heating, it operates as a traditional soldering iron when fitted with a standard tip. When configured for dual-sided heating, it transforms into hot tweezers – perfect for the efficient and accurate removal of SMD components. Features Working Temperature: 50-500°C (122-932°F) Supports multiple power inputs: PD 3.1/3.0/2.0, QC 3.0/2.0, (5-28 V DC), LiPo batteries, and power adapters. The HT140 combines hot tweezers and a soldering iron, with independent single- or dual-sided heating. Use it as a soldering iron with a tip, or as hot tweezers for easy SMD desoldering. Voltage and current can be adjusted based on the power source. Features dual temperature control, presets, quick temperature increase, and fine-tuning. 128 x 32 OLED screen with adjustable brightness, and orientation. Switchable °C/°F. High-precision heating element with ±1% accuracy. Melts solder in just 2 seconds. Smart standby, sleep, and wake-up functions extend tip lifespan and boost efficiency. Supports temperature calibration and compensation for precise work. Includes a 1.5 m heat-resistant PD 150 W silicone cable and a sturdy all-metal HT Station. Swappable tips and adjustable angles for various SMD soldering tasks. Specifications Working Voltage 5-28 V DC Maximum Power 140 W Working Temperature 50-500°C (122-932°F) Tin Melting Time 2s Interface Type USB-C, DC5525 Power Supply PD 3.1/3.0/2.0, QC 3.0/2.0, 28 V DC max Display 128 x 32 OLED Firmware Upgrade Yes Menu Languages English, Russian, Chinese Dimensions 160 x 27 x 17.5 mm Weight 50 g Included 1x SEQURE HT140 Host 2x HT140-IS Tapered Curved Desoldering Tips 1x HT Station 1x Accessory Package 1x Storage Bag 1x 65 W PD Power Supply (EU, UK & US) 1x 24 W PD Silicone Wire (1.5 m) 1x GND Wire Accessory Kit (1.8 m) Downloads Manual Firmware V1.04

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PIO Programming on the Raspberry Pi PicoNine Instructions, Many Possibilities Breaking AI Out of the BrowserUsing AI CLIs to Code, Compile, and Validate Embedded Projects The Scrutiny DebuggerDebug, Visualize, and Test Embedded C/C++ Code Sigfox Breakout Board (1)A Self-Built Radio BoB Low-Noise Power Supply (2)Construction, Assembly, and Practical Implementation Simple Signal Generator Using the RP2040Analog and Digital Signals for Around €10 Navigating the Future of Smart Homes with Matter and Edge AIAre Matter’s Latest Updates and the Rise of Edge AI Finally Giving Engineers the Tools to Build the Intelligent, Seamless Smart Homes Users Have Been Promised? Differential Pressure SensorsPredictive Maintenance in HVAC-Systems Security by DesignEngineering Fundamentals Limit Failure Embedded Security Is No Longer Optional CRA and PQC Are Rewriting Embedded Security PrioritiesWhy Even Small IoT and Industrial Firms Need an Upgrade Plan embedded world 2026An Interview With Benedikt Weyerer, Executive Director of embedded world Hands on with I3CUsing Hardware from ST and Microchip The BLEnky ProjectRapid Prototyping of Bluetooth Low Energy Applications Pulse Width ModulationFrom a Simple On/Off Thermostat to a Smoothed DC Analog Signal AudiotronicsEar-Pleasing Electronics for DIY Construction From Life’s ExperienceRead The F...ing Manual! ESP32 Audio Transceiver Board (Part 4)Tuning the Clocks - And a Wired Option 2026: An AI OdysseyThe 2025 Vibe-Coding Hangover Symmetrical DC LoadDC Load, Static or Dynamic, and Symmetrical Counting Faces with MaixCAMAn Easy Way to Capture Audience Sizes

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The X500 V2 ARF Kit is an affordable, lightweight, and robust carbon fiber professional drone kit that is easy to assemble (less than 15 minutes). It comes with the X500 V2 Frame Kit and motors, ESCs, power distribution boards and propellers preinstalled. It is perfectly compatible with various flight controllers such as the Holybro Pixhawk series, Durandal, Pix32 V5, etc. There are numerous improvements compared the previous model. Specifications Wheelbase: 500 mm Motor mount pattern: 16x16 mm Frame body: 144x144 mm, 2 mm thick Landing gear height: 215 mm Space between top and bottom plates: 28 mm Weight: 610 g Flight time: ~18 minutes hover with no additional payload. Tested with 5000 mAh battery. Payload: 1500 g (without battery, 70% throttle) Battery recommendation: 4S 3000-5000 mAh 20C+ with XT60 Lipo battery (not Included) Included X500 V2 Frame Kit With Preinstalled Items: 4x Motors: Holybro 2216 KV920 Motor (4 pcs) with XT30 Plug 4x ESCs (BLHeli S ESC 20A) 6x 1045 Propellers Power Distribution Board – XT60 plug for battery & XT30 plug for ESCs & peripherals Note: Depth camera mount is sold separately.

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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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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. USB Measurement AdapterTesting Current and Signal Quality of USB Ports 4...20 mA Current Output for Arduino UnoA Reliable, EMI-Insensitive Current Loop Interface Vacuum Cleaner Automatic ControlKeep Your Tools’ Work Area Clean DDS Generator with ATtiny Opamp-Tester V2New PCB – Now Also Suitable for SMDs 550-mW “Lamp” Audio AmplifierGet the Warm Sound of Vacuum Tubes With Ease Fuse GuardMonitoring a Fuse with a Flashing LED HQ RIAA PreamplifierGet the Most Out of Your Vinyl Records! Turntable Speed CalibratorAn Arduino-Based 100–120 Hz Strobe Light Generator Elektor Classics: video buffer/repeater Infrared Remote-Controlled DimmerControl Your Halogen or LED Floor Lamp Effortlessly and With Style How to Use switch…case on Strings in C++/Arduino IDE Magnet FinderWith a Simple Hall-Effect Sensor Raspberry Pi Smart Power ButtonA Solution for Raspberry Pi Up to Model 4 Essential Maker TipsProfessional Insights for Everyday Making Practical Projects with the 555 TimerDC Motor Control and Fast Reaction Challenges Basic AC-Load-On MonitorSave Energy with a Simple Device Power Banks in ParallelA Three-Day Continuous Power Solution VFO Up to 15 MHzAn Implementation With Raspberry Pi Pico Violin Tuner with ATtiny202 Elektor Classics: video amplifier for B/W television sets Capacitance Meter20 pF to 600 nF Quasi-Analog Clockwork Mk IITwo LED Rings for Hours and Minutes You Can Do Anything You Want(with the Arduino Ecosystem at Your Side) Neon Lamp Dice Elektor Classics: RTTY calibrator indicator Inspiring Hardware Designs for Your ESPs Elektor Classics: variable 3 A power supply RGB LEDs with Integrated Control CircuitLight with Precision: ICLEDs Set Standards Experiment: Towards a Mixed-Signal Theremin?Blending Modern Time-of-Flight Sensors With the Timeless XR2206 Analog Generator ESP32 Audio Transceiver Board (Part 1)SD Card WAV File Player Demo Infographics: Circuits and Circuit Design 2025 Small Audio MixerA Simple and Versatile Scalable Design Smart Staircase Light TimerSave More Money on the Energy Bill! Smarten Up Your ShuttersControlling Velux Hardware With an ESP32 and MQTT Solid-State Foot WarmerEnergy-Efficient Comfort Is the M5Stamp Fly Quadcopter the Next Tello? Boosting Wi-Fi Range of the ESP32-C3 SuperMiniA Simple and Effective Antenna Mod ZD-8968 Hot-Air Soldering StationA Budget-Friendly Workhorse or Just Hot Air? Parking Sensor TesterFinding Defects in the PDC System of a Car

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A Practical Guide to AI, Python, and Hardware Projects Welcome to your BeagleY-AI journey! This compact, powerful, and affordable single-board computer is perfect for developers and hobbyists. With its dedicated 4 TOPS AI co-processor and a 1.4 GHz Quad-core Cortex-A53 CPU, the BeagleY-AI is equipped to handle both AI applications and real-time I/O tasks. Powered by the Texas Instruments AM67A processor, it offers DSPs, a 3D graphics unit, and video accelerators. Inside this handbook, you‘ll find over 50 hands-on projects that cover a wide range of topics—from basic circuits with LEDs and sensors to an AI-driven project. Each project is written in Python 3 and includes detailed explanations and full program listings to guide you. Whether you‘re a beginner or more advanced, you can follow these projects as they are or modify them to fit your own creative ideas. Here’s a glimpse of some exciting projects included in this handbook: Morse Code Exerciser with LED or BuzzerType a message and watch it come to life as an LED or buzzer translates your text into Morse code. Ultrasonic Distance MeasurementUse an ultrasonic sensor to measure distances and display the result in real time. Environmental Data Display & VisualizationCollect temperature, pressure, and humidity readings from the BME280 sensor, and display or plot them on a graphical interface. SPI – Voltmeter with ADCLearn how to measure voltage using an external ADC and display the results on your BeagleY-AI. GPS Coordinates DisplayTrack your location with a GPS module and view geographic coordinates on your screen. BeagleY-AI and Raspberry Pi 4 CommunicationDiscover how to make your BeagleY-AI and Raspberry Pi communicate over a serial link and exchange data. AI-Driven Object Detection with TensorFlow LiteSet up and run an object detection model using TensorFlow Lite on the BeagleY-AI platform, with complete hardware and software details provided.

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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. USB-meetadaptertest stroom en signaalkwaliteit van USB-poorten 4...20 mA stroom-uitgang voor Arduino Unobetrouwbare, EMI-ongevoelige current loop-interface Automatische stofzuigerschakelaarhoud uw werkplek schoon DDS-generator met ATtiny Opamp-tester v2nieuwe print – nu ook voor SMD’s 550-mW audio ‘Lamp-Amp’voor die warme buizenklank Zekeringbewakerhoud zekeringen in de gaten met een knipper-LED Hoogwaardige RIAA-voorversterkerhaal het beste uit uw vinylplaten! Kalibratie voor draaitafelsArduino-gebaseerde 100/120Hz-stroboscoop Elektor Classics: Video-versterker Dimmer met IR-afstandsbedieningcomfortabel en elegant staande halogeen- of LED-lampen regelen Het gebruik van switch…case bij strings in C++/Arduino IDE Magneetzoekermet een eenvoudige Hall-effect-sensor Raspberry Pi: slimme aan/uit-knopeen oplossing voor de Raspberry Pi tot aan model 4 Professionele tipsvan makers voor makers Praktische projecten met de 555-timerDC-motorbesturing en snelle reactie-uitdaging Eenvoudige ‘aan-verklikker’spaar energie met een simpele schakeling Powerpacks parallelschakelendrie dagen ononderbroken stroom VFO tot 15 MHzimplementatie met Raspberry Pi Pico Vioolstemmer met ATtiny202 Elektor Classics: Video-ingangsversterker voor zwart/wit-TV Capaciteitsmeter20 pF tot 600 nF Quasi-analoog uurwerk Mk IItwee LED-ringen – voor uren en minuten Niets is onmogelijk(met hulp van het Arduino-ecosysteem) Neon dobbelsteen Elektor Classics: RTTY-afstemhulp Inspirerende hardware-ontwerpen voor uw ESP’s Elektor Classics: 3 A voeding RGB-LED’s met geïntegreerde stuurkringlicht met precisie: ICLED’s zetten de standaard Experiment: een mixed-signal Theremin?moderne time-of-flight sensoren plus de tijdloze analoge XR2206 ESP32 audio-transceiver (deel 1)SD-kaart WAV-speler demo Elektor infographicschakelingen en schakelingontwerp 2025 Kleine audiomixereenvoudig, veelzijdig en schaalbaar Slimme timer voor trapverlichtingbespaar op uw energierekening! Maak uw rolluiken slimmerVelux-hardware besturen met een ESP32 en MQTT Solid-state voetenwarmercomfortabel en energiezuinig Is de M5Stamp Fly-quadcopter de nieuwe Tello? Vergroot het WiFi-bereik van de ESP32-C3 SuperMinieenvoudige en effectieve antennemodificatie ZD-8968 hetelucht-soldeerstationbudgetvriendelijk werkpaard of gebakken lucht? Parkeersensor-testervind defecten in het PDC-systeem van een auto

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