Multilingual DIY Kit (incl. 27 RGB LEDs + Raspberry Pi Pico) Bring some engineering magic to your festive season with the Wordy LED Christmas Tree, a unique DIY electronics kit designed by Elektor. This beautifully engineered 3D Christmas tree combines eleven PCBs, a Raspberry Pi Pico, and 27 addressable RGB LEDs to illuminate Christmas greetings in seven languages: Danish, Dutch, English, French, German, Italian, and Spanish. Unlike ordinary LED trees, each word inside the tree has its own light chamber, creating a refined, softly glowing display without sound or flicker. The LEDs are fully WS2812-compatible and driven via the popular Adafruit NeoPixel library, making custom animations and color effects easy to create. Perfect for makers, tinkerers, and festive electronics fans, this kit offers both an enjoyable build and a striking, conversation-worthy decoration. The Wordy Christmas Tree is your perfect holiday maker project! Features Multilingual greetings (7 languages) milled into the front panel 3D construction from 11 interlocking PCBs Powered by Raspberry Pi Pico 27 individually addressable RGB LEDs (pre-mounted) Smooth fade-in and fade-out animations Fully programmable using the Arduino IDE A 5-V power supply (with micro-USB connector) capable of ≥1 A is recommended for maximum brightness (not included) Dimensions (H x W x D): 130 x 115 x 75 mm Included All required PCBs with LEDs and other SMD parts mounted Raspberry Pi Pico (to be soldered & programmed by the user) 3-way pin header (to be soldered by the user) 3-way pin socket (to be soldered by the user) 4x Self-adhesive dome bumpers Project Page Elektor Labs

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Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.

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A Project-Based Introduction to Microcontrollers and Drone Control A Practical Introduction to Embedded Systems with the ESP32 This book is intended for readers who are new to embedded systems and looking for a structured, example-driven way to begin. If you’ve explored general-purpose electronics or Arduino-based resources but found them too broad or lacking in practical application, this guide offers a more focused alternative. With a small, affordable set of components – such as LEDs, sensors, an OLED screen and a motion sensor – you’ll build and work with the same hardware setup throughout the book. This allows you to focus on learning and experimenting without constant reconfiguration. Topics include: Understanding and programming the ESP32 microcontroller Using the Arduino IDE to write and deploy code Exploring cyber-physical systems, culminating in basic drone control No prior experience with Arduino or embedded development is required. Each section includes hands-on examples and mini-projects designed to reinforce core concepts and encourage deeper exploration. By the end, you’ll be equipped not only to reproduce the book’s examples, but also to extend them toward your own ideas and applications. Whether your interest is in learning embedded programming, building interactive systems, or exploring educational drone control, this book provides a clear and practical path to getting started.

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The FNIRSI DPS150 is a high-performance adjustable DC power supply that features a USB-C input interface and multiple power supply modes, allowing precise adjustment of output voltage (0-30 V) and current (0-5 A). It provides efficient, low-consumption, and stable output, equipped with multiple safety protection functions including overvoltage, overcurrent, overload, overheating, and reverse connection. It can be flexibly applied to serial connection of multiple devices, with rich and user-friendly display and operation, compact and portable design, meeting various application needs. Features 30 V, 5 A, 150 W variable DC power with 0.01 V, 0.001 A precision, CC/CV modes, and <20 mV ripple to protect sensitive electronics. Supports PC, QC, and DC inputs with programmable outputs and 6 preset voltage/current settings. Compatible with 4 mm banana plugs, U-shaped terminals, and copper wires for various equipment. 8 safety mechanisms including overvoltage, current, short circuit, and overheating protection. 2.8-inch HD IPS screen with 90° flip, numerical and curve displays for easy monitoring. Small, space-saving design for use in labs, repairs, and DIY projects. Specifications Input Voltage 5~32 V DC Input Current 100 mA-5 A Output Voltage 0-30 V Output Current 0~5 A Output Power 0-150 W Input Way PD fast charger QC fast charger Power bank DC power adapters Operating Environment 0-40°C Load Regulation 0.49% Full Load Efficiency 96.30% Display 2.8 inch (320 x 240) Dimensions 106 x 76 x 28 mm Weight 178 g Included 1x DPS150 Power Supply 2x Alligator clip wires (black & red) 1x C2C PD charging cable 1x 100 W PD GaN Adapter (EU) 1x Micro USB cable 1x Manual Downloads Manual Firmware V0.0.1

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PC USB Logic Analyzers with Arduino, Raspberry Pi, and Co. Step-by-step instructions guide you through the analysis of modern protocols such as I²C, SPI, UART, RS-232, NeoPixel, WS28xx, HD44780 and 1-Wire. With the help of numerous experimental circuits based on the Raspberry Pi Pico, Arduino Uno and the Bus Pirate, you will learn the practical application of popular USB logic analyzers. All the experimental circuits presented in this book have been fully tested and are fully functional. The necessary program listings are included – no special programming or electronics knowledge is required for these circuits. The programming languages used are MicroPython and C along with the development environments Thonny and Arduino IDE. This book uses several models of flexible and widely available USB logic analyzers and shows the strengths and weaknesses of each price range. You will learn about the criteria that matter for your work and be able to find the right device for you. Whether Arduino, Raspberry Pi or Raspberry Pi Pico, the example circuits shown allow you to get started quickly with protocol analysis and can also serve as a basis for your own experiments. After reading this book, you will be familiar with all the important terms and contexts, conduct your own experiments, analyze protocols independently, culminating in a comprehensive knowledge set of digital signals and protocols.

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The Peak Atlas ZEN50 is ideal for testing Zener diodes (including avalanche diodes), transient suppressors, LEDs and LED strings. It generates constant current pulses (selectable from 2 mA, 5 mA, 10 mA and 15 mA) at voltages from 0 V to 50 V. So even high voltage Zeners or high voltage LED strings can be tested. Test currents are supplied in narrow pulses to ensure that the component under test remains at a constant temperature. The voltage of the part is displayed on the screen together with the test current and also a measure of the component's slope resistance (also known as dynamic impedance). Specifications Analyzer type Zeners, LEDs, TVS etc Test currents 2 mA, 5 mA, 10 mA, 15 mA Voltage range 0.00 to 50.00 V Slope resistance range 0 to 8000 Ohms Battery type Single AAA (supplied). Life typically 1400 ops Test method Triple pulse burst @ 10pps (typ) Test current duty cycle 3% Display type Alphanumeric LCD (with backlight) Included Peak Atlas ZEN50 Zener Diode Analyzer Fitted flexible test leads with gold plated crocs Comprehensive illustrated user guide AAA Alkaline battery Downloads Datasheet (EN) User Guide (EN) User Guide (FR) User Guide (DE) User Guide (IT)

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More than 275 Power Supply Designs for Home Construction This USB Stick contains over 275 different power supply circuits from the volumes 2001-2025 of Elektor. The article search feature allows you to search full-text content. The results are always displayed as pre-formatted PDF documents. Highlights Cuk Converter Automatic Battery Switchover Battery Voltage LED Digital Benchtop Power Supply Lithium-Ion Charger Solar Cell Charger Electronic Fuse High Voltage Regulator Power Supply for USB Devices Step-up Converter for LEDs Battery Management and much more... On the Stick you will also find a folder with additional material such as PCB layouts, Gerber files and software. Specifications Storage 16 GB Interfaces 1x USB-A1x USB-C System requirements PC with Adobe Reader 7.0 or higher Web browser

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Build your textbook weather station or conduct environmental research together with the whole world. With many practical projects for Arduino, Raspberry Pi, NodeMCU, ESP32, and other development boards. Weather stations have enjoyed great popularity for decades. Every current and even every long discontinued electronics magazine has regularly featured articles on building your own weather station. Over the years, they have become increasingly sophisticated and can now be fully integrated into an automated home — although this often requires loyalty to an (expensive) brand manufacturer across all components. With your own weather and environmental data, you can keep up and measure things that no commercial station can. It’s also fun: expand your knowledge of electronics, current microcontroller development boards and programming languages in a fun and meaningful way. For less than 10 euros you can get started and record your first environmental data — with time and growing interest, you will continue to expand your system. In this Edition Which Microcontroller Fits My Project? The Right Development Environment Tracking Wind and Weather Weather Display with OpenWeatherMap and Vacuum Fluorescent Display Volatile Organic Compounds in the Air We Breathe Working with MQ Sensors: Measuring Carbon Monoxide — Odorless but Toxic CO2 Traffic Light with ThingSpeak IoT Connection An Automatic Plant Watering System Good Indoor Climate: Temperature and Humidity are Important criteria Classy Thermometer with Vintage Tube Technology Nostalgic Weather House for the Whole Family Measuring Air Pressure and Temperature Accurately Sunburn Warning Device DIY Sensor for Sunshine Duration Simple Smartphone Says: Fog or Clear View? Identifying Earthquakes Liquid Level Measurement for Vessels and Reservoirs Water pH Value Measurement Detecting Radioactive Radiation GPS: Sensor Location Service Across the Globe Saving and Timestamping Log Files on SD Cards LoRaWAN, The Things Network, and ThingSpeak Operating a LoRaWAN Gateway for TTN Defying "Wind and Weather" Mega Display with Weather Forecasz

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This bundle contains the popular Elektor Sand Clock for Raspberry Pi Pico and the new Elektor Laser Head Upgrade, offering even more options for displaying the time. Not only can you "engrave" the current time in sand, you can now alternatively write it on a glow-in-the-dark foil or create green drawings. Contents of the bundle Elektor Sand Clock for Raspberry Pi Pico (normal price: €50) Elektor Laser Head Upgrade for Sand Clock (normal price: €35) Elektor Sand Clock for Raspberry Pi (Raspberry Pi-based Eye Catcher) A standard sand clock just shows how time passes. In contrast, this Raspberry Pi Pico-controlled sand clock shows the exact time by "engraving" the four digits for hour and minute into the layer of sand. After an adjustable time the sand is flattened out by two vibration motors and everything begins all over again. At the heart of the sand clock are two servo motors driving a writing pen through a pantograph mechanism. A third servo motor lifts the pen up and down. The sand container is equipped with two vibration motors to flatten the sand. The electronic part of the sand clock consists of a Raspberry Pi Pico and an RTC/driver board with a real-time clock, plus driver circuits for the servo motors. A detailed construction manual is available for downloading. Features Dimensions: 135 x 110 x 80 mm Build time: approx. 1.5 to 2 hours Included 3x Precut acrylic sheets with all mechanical parts 3x Mini servo motors 2x Vibration motors 1x Raspberry Pi Pico 1x RTC/driver board with assembled parts Nuts, bolts, spacers, and wires for the assembly Fine-grained white sand Elektor Laser Head Upgrade for Sand Clock The new Elektor Laser Head transforms the Sand Clock into a clock that writes the time on glow-in-the-dark film instead of sand. In addition to displaying the time, it can also be used to create ephemeral drawings. The 5 mW laser pointer, with a wavelength of 405 nm, produces bright green drawings on the glow-in-the-dark film. For best results, use the kit in a dimly lit room. Warning: Never look directly into the laser beam! The kit includes all the necessary components, but soldering three wires is required. Note: This kit is also compatible with the original Arduino-based Sand Clock from 2017. For more details, see Elektor Magazine 1-2/2017 and Elektor Magazine 1-2/2018.

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Complete ESP32 microcontroller learning course featuring a custom-designed MCU expansion board, hands-on projects, and a comprehensive online guide – perfect for learning hardware, programming, and connectivity step by step. A Practical Introduction to Embedded Systems with the ESP32 This course is designed for readers who are new to embedded systems and looking for a structured, example-driven way to get started. If you’ve explored general-purpose electronics or Arduino-based materials but found them too broad or lacking in practical guidance, this course offers a more focused alternative. Using the "ESP32 by Example Kit" (EEK) – a compact and affordable set of components featuring LEDs, sensors, an OLED display, and a motion processor – you’ll work with a consistent hardware setup throughout the course. Once assembled, the EEK stays mostly unchanged, allowing you to concentrate on learning and experimentation without constant reconfiguration. Topics include: Understanding and programming the ESP32 microcontroller Writing and deploying code with the Arduino IDE Exploring cyber-physical systems, culminating in basic drone control 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 book’s examples but also to build on them with your own ideas and applications. Whether you're interested in embedded programming, interactive systems, or introductory drone control, this course provides a clear and practical path to getting started. What you'll learn? Embedded programming with the ESP32 using the Arduino IDE Real-time sensor input and control via buttons, LEDs, and displays Gesture-based interaction using the MPU6050 motion sensor Bluetooth gamepad integration and drone control simulation Wi-Fi and UDP networking, local web servers, and NTP MQTT communication with cloud platforms like AWS and Arduino IoT How to build and deploy full-featured IoT systems Perfect 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 Developers moving beyond Raspberry Pi or Arduino basics Support when you need it Access to instructors via Elektor Academy Helpful community forums and essential documentation What's inside the Box (Course)? New 384-page book: "ESP32 by Example" (valued at €45) Elektor ESP32 by Example Kit (EEK): Microcontroller Extension Board with 6 LEDs and 6 Buttons installed + OLED Display, MPU6050 3-axis Accelerometer and Gyroscope Module (valued at €40) Adafruit HUZZAH32 – ESP32 Feather MCU Board (valued at €30) ESP32 Cheap Yellow Display Board (valued at €25) DHT11 Humidity & Temperature Sensor Breadboard Jumper wires USB-C cable Access to the full course on the Elektor Academy Pro Learning Platform Instructional videos Downloadable Arduino project files for every module Learning Material (of this Box/Course) ▶  Click here to open Module 1 – Getting Started with the ESP32 & EEK Module 2 – Digital Output – LEDs and GPIO Module 3 – Switches and Input Handling Module 4 – EEK and PWM Module 5 – OLED and Display Output Module 6 – Motion Sensing with the MPU6050 Module 7 – Capstone Project (EEK in Action) Module 8 – WiFi and Web Control with ESP32 Module 9 – Cloud Concepts using EEK Module 10 – Hands-on: Arduino IoT Cloud and EEK Module 11 – BlueTooth and EEK GamePad Integration Module 12 – Why Drones? Module 13 – Drone Simulator Concepts Module 14 – Simple Drone Flight Control Module 15 – Real-Time Drone Flight Control Module 16 – Drone Control Mini-Projects Module 17 – Middleware and Python Scripting Module 18 – Python Applications for Drone Control Module 19 – Capstone EEK Control Project and Presentation About the Author Dr. Jim Solderitsch is an educator, software architect, systems developer, and cybersecurity researcher with a focus on cyber-physical systems. He currently serves as an Adjunct Professor in Computing Sciences at Villanova University in Pennsylvania. What is Elektor Academy Pro? Elektor Academy Pro delivers specialized learning solutions designed for professionals, engineering teams, and technical experts in the electronics and embedded systems industry. It enables individuals and organizations to expand their practical knowledge, enhance their skills, and stay ahead of the curve through high-quality resources and hands-on training tools. From real-world projects and expert-led courses to in-depth technical insights, Elektor empowers engineers to tackle today’s electronics and embedded systems challenges. Our educational offerings include Academy Books, Pro Boxes, Webinars, Conferences, and industry-focused B2B magazines – all created with professional development in mind. Whether you're an engineer, R&D specialist, or technical decision-maker, Elektor Academy Pro bridges the gap between theory and practice, helping you master emerging technologies and drive innovation within your organization.

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Oscilloscope, multimeter and waveform generator in the same battery-powered device, to work on the go. Features Oscilloscope + multimeter + waveform generator, multifunction in one 3.5-inch high-resolution, high-contrast colour LCD display, suitable for outdoor use 18650 lithium battery, comprehensive power consumption ≤3 W, can work continuously for about 6 hours USB-C interface, support power bank, support PC software connection Self-calibration function SCPI supported, facilitate secondary development Specifications Oscilloscope Bandwidth 70 MHz Channels 2-ch Oscilloscope + 1-ch Generator Sample Rate 250 MSa/s Acquisition Model Normal, Peak detect Record Length 8K Display 3.5-inch LCD Waveform Refresh Rate 10,000 wfrms/s Input Coupling DC, AC, and Ground Input Impedance 1 MΩ ±2%, in parallel with 16pF±10pF Probe Attenuation Factors 1X,10X,100X,1000X,10000X Max. input Voltage 400 V (DC+AC, PK-PK, 1MΩ input impedance) (10:1 probe attenuation) Bandwidth Limit (typical) 20 MHz Horizontal Scale 5 ns/div - 1000 s/div, step by 1 - 2 - 5 Vertical Sensitivity 10 mV/div - 10 V/div Vertical Resolution 8 bits Trigger Type Edge Trigger Modes Auto, Normal, single Automatic Measurement Period, Frequency, Mean, PK-PK, Max, Min Cursor Measurement ΔV, ΔT, ΔT& ΔV between cursors Communication Interface USB Type-C Multimeter Max. Resolution 20,000 counts Testing Mode Voltage, Current, Resistance, Capacitance, Diode, and Continuity test Input Impedance 10 MΩ Max Input Voltage AC: 750 V | DC: 1000 V Max Input Current DC: 10 A | AC: 10 A Diode 0-2 V Waveform Generator Frequency Output Sine 0.1 Hz - 25 MHz Square 0.1 Hz - 5 MHz Ramp 0.1 Hz - 1 MHz Pulse 0.1 Hz - 5 MHz Arbitrary 0.1 Hz - 5 MHz Sampling Rate 125 MSa/s Channel 1-ch Amplitude Range 20 mVpp - 5 Vpp Waveform Length 8K Vertical Resolution 14 bits Output Impedance 50Ω Downloads User Manual for HDS200 Series SCPI Protocol for HDS200 Series Quick Guide for HDS200 Series PC Software for OWON HDS200 Series

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The Elektor Laser Head transforms the Elektor Sand Clock into a clock that writes the time on glow-in-the-dark film instead of sand. In addition to displaying the time, it can also be used to create ephemeral drawings. The 5 mW laser pointer, with a wavelength of 405 nm, produces bright green drawings on the glow-in-the-dark film. For best results, use the kit in a dimly lit room. Warning: Never look directly into the laser beam! The kit includes all the necessary components, but soldering three wires is required. Note: This kit is also compatible with the original Arduino-based Sand Clock from 2017. For more details, see Elektor Magazine 1-2/2017 and Elektor Magazine 1-2/2018.

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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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The Smart USB Soldering Iron Kit is a compact, cordless solution designed for precision and portability. Featuring intelligent three-speed temperature control (300-450°C) with an easy-to-read LED display, it heats up in just 10 seconds and melts solder in as little as 6 seconds. The 1000 mAh rechargeable battery delivers up to 30 minutes of continuous use, making it ideal for quick repairs, electronics projects, and DIY tasks. With a plug-and-play, replaceable tip and a high-temperature-resistant insulated shell, it’s safe, user-friendly, and perfect for both beginners and professionals on the go. Features Three-Speed Intelligent Temperature Adjustment: Features an LED display screen with adjustable temperatures between 300-450°C (572-842°F). Easily switch between Celsius and Fahrenheit. Integrated Plug-In Soldering Iron Tip: Plug-and-play design. The tip can be replaced by simply unscrewing it, ensuring quick and convenient operation. Safe and Durable Design: High-temperature-resistant, insulated shell for enhanced safety during use. Battery Capacity: Equipped with a rechargeable 1000 mAh battery that supports up to 30 minutes of continuous operation on a full charge – ideal for everyday tasks. Efficient Performance: 8 W power with an integrated heating core for rapid heat-up. Melts tin in just 6 seconds, providing excellent thermal conductivity. Easy to Use: After powering on via USB, set your desired temperature. The soldering iron heats up in 10 seconds. Once finished, place the tip on the stand—it cools down within 1 minute. Perfect for beginners, hobbyists, basic home repairs, and training engineers. Cordless Innovation: This cordless soldering kit includes a built-in rechargeable lithium-ion battery, eliminating the need for cables. Versatile use for circuit board soldering, electrical repairs, jewelry making, metal crafts, computer maintenance, and DIY projects. Specifications Adjustable Temperature: 300-450°C (572-842°F) Tin Melting Time: <15 seconds Working Voltage: 5 V Power Output: 8 W Battery Capacity: 1000 mAh Auto Sleep Function: Activates after 10 minutes of inactivity Charging Time: Approx. 90 minutes Battery Life: Up to 30 minutes continuous use Charging Interface: USB-C Main Material: Aluminum alloy Dimensions: 190 x 16 mm (7.4 x 0.6") Included 1x USB Soldering Iron 1x Soldering Tip 1x Soldering Rosin 1x Soldering Iron Holder (with Sponge) 1x USB-C Charging Cable 1x Solder Wire 1x Storage Box

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