Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. MultiRF Dev BoardA Platform for Evaluating Short- and Long-Range Wireless Protocols Elektor at 65Disrupting Electronics Since 1961 Wi-Fi-Based Person Detection on an ESP32When Your Router Becomes a Motion Sensor Wireless ScalesFour Small Scales = One Big Scale Walter, the Compact IoT ModuleESP32-S3 SoC, LTE-M/NB-IoT 5G Modem, and GNSS Receiver 3- and 4-Wire RTD Sensors ConditioningWith Full-Scale Adjustment and Cable Compensation 3-in-1 2-Channel Oscilloscope/Generator/MultimeterA Review of The Fnirsi 2D15P electronica Fast Forward 2026 Invites Startups and Industry Partners EcologgingA Modular Environmental IoT Station for Field Research Wireless Connectivity in Medical ApplicationsAlways on the Pulse with Bluetooth LE AudiotronicsHum Reduction Increasing Agricultural Efficiency with AI Modeling and SensorsBoosting Agricultural Productivity OPC UA — An OverviewPlatform-Independent Data Exchange Redox Meter Instrumentation Amplifier for Physics and Engineering Experiments Active Differential Audio FiltersFor Professional Crossovers and More Elektor Community Perspectives on IoT & Sensors Telegram-Controlled Water Heater Interface ModuleA Solution Based on an ESP32 and Arduino Software 2026: An AI OdysseyWhatever Happened to Fuzzy Logic? Err-lectronics Alarm Signal Injector Plus PowerTools for Finding Broken Wires

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Programming with GNU Radio HackRF is an open-source hardware platform developed by Great Scott Gadgets and serves as a versatile front end for software-defined radio (SDR). With HackRF One and its successor, HackRF Pro, users can develop their own SDR applications, build powerful receivers and transmitters, and tackle demanding RF measurement tasks. This book provides a practical introduction to the world of SDR. Step by step, the author shows how powerful SDR projects can be implemented with HackRF – from the fundamentals of RF technology to advanced applications using GNU Radio. In addition to working with SDR Sharp (SDR#), RadioConda, and GNU Radio, the book also covers the fundamentals of modern digital signal processing. Numerous experiments and easy-to-follow practical examples guide readers through topics such as AM, FM, and SSB reception, digital filters, shortwave radio, amateur radio, signal generators, and custom RF projects up to 6 GHz. Whether you are a maker, radio amateur, electronics enthusiast, or SDR beginner, this book provides solid knowledge, practical applications, and the motivation to creatively explore the possibilities of modern SDR technology.

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The FNIRSI TDM-120P is a thermal imaging multimeter that combines thermal imaging technology with traditional multimeter functions, delivering more comprehensive and intuitive test results for electrical testing and related applications. It is widely used in fields such as electrical engineering, industrial manufacturing, construction, and security monitoring. The TDM-120P provides reliable technical support for equipment testing, fault diagnosis, and maintenance management, helping to improve production efficiency, product quality, and overall safety. Features 2-in-1: Thermal Imager + True RMS Multimeter (19,999 Counts) 120 x 90 HD Imaging | <60 mK High Thermal Sensitivity -20°C to 400°C (-4°F to 752°F) Temperature Range | 0.01–1.00 Adjustable Emissivity 2.8" LCD Touch Screen | 7 Color Palettes | One-Click Save & USB Export Full Multimeter Functions: AC/DC Voltage, Resistance, and Capacitance Wide Application: HVAC, Leak Detection, Electrical & Automotive Repair Specifications 7 Color Palettes Arctic / Hot Iron / Iron Red / Rainbow / Lava / Black Hot / White Hot Detector Type Vanadium oxide Field of View 50° Screen 2.8-inch LCD touchscreen Frame Rate ≤25 Hz Infrared Resolution 120 x 90 Temperature Measurement Display Center point, automatic high/low temperature tracking Temperature Range -20°C ~ 400°C (-4°F ~ 752°F) Temperature Unit °C / °F Accuracy ±2°C or ±2% (maximum value measured) High/Low Temperature Alarm Yes Emissivity 0.01-1 adjustable Languages English, Chinese Multimeter DC Voltage Range: 1.9999V / 19.999V / 199.99V / 1000V Accuracy: ±(0.5% +3) AC Voltage Range: 1.9999V / 19.999V / 199.99V / 750.0V Accuracy: ±(1% +3) Resistance Range: 19.999MΩ / 1.9999MΩ / 199.99KΩ / 19.999KΩ Accuracy: ±(0.5% +3) Range: 1.9999KΩ / 199.99Ω Accuracy: ±(2.0% +3) Capacitance Range: 999.9μF / 99.99μF / 9.999μF / 999.9nF / 99.99nF / 9.999nF Accuracy: ±(2.0% +5) Range: 9.999mF / 99.99mF Accuracy: ±(5.0% +20) Diode Yes Continuity Yes Included 1x FNIRSI TDM-120P Thermal Imaging Multimeter 2x Multimeter Test Leads 1x Storage bag 1x USB cable 1x Manual Downloads Manual Firmware v1.2.6

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The FNIRSI GC-03 is a multifunctional radiation detector designed for professional nuclear radiation measurement in everyday environments such as the home, office, car, and outdoors. Equipped with a 2.4-inch high-definition color display, it provides real-time monitoring of nuclear radiation as well as electric and magnetic field strength. For added safety, the device features three alarm modes: audible alert, vibration, and visual light warning. Features 3-in-1 Detection: Monitors electric, magnetic, and nuclear radiation with one device. High-Precision GM Tube: Accurately detects gamma, X-rays, and hard beta radiation with low power consumption. Real-Time Curve + 50 Alarm Records: Tracks radiation trends and stores alarm history for easy review. Custom Triple Alarms: Supports visual, audible, and vibration alerts with adjustable thresholds. Long Battery Life: 1500 mAh battery for extended and reliable field use. Specifications Nuclear Radiation Range: 0.01μSv/h-999.99μSv/h Accuracy: 0.01μSv/h Electric Field Range: 1V/m-1999V/m Accuracy: 1V/m Magnetic Field Range: 0.01μT-99.99μT Accuracy: 0.01μT Radiation Power 0.2-1000mW/m² Detection Radiation Type Ionizing radiation (gamma rays, etc.) Detector Energy compensation GM tube (Geiger counter tube) Dose Current Rate 0.00-10000μSv/h (10mSv/h) Cumulative Dose Equivalent 0.00μSv-500.0mSv Energy Range 48keV-1.5MeV ≤ ±30% (for 137Cs-) Sensitivity 80CPM/μSv Dose Unit μSv/h, uGy/h, mR/h, CPS, CPM Alarm Mode Light, vibration, sound Display 2.4-inch color screen Backlight Brightness Adjustable Power Supply USB-C (5 V/1 A) Battery 1500 mAh Languages English, Chinese Dimensions 138 x 63 x 32 mm Weight 141 g Included 1x FNIRSI GC-03 Radiation Detector 1x USB cable 1x Manual Downloads Manual Firmware v1.0.4

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Principles, Design, and Real-World Applications of Modern Photonics Light shapes our world—from the glow of a simple LED to the precision of a laser beam and the immense power of the sun. LEDs, Lasers, and Sunlight – Principles, Design, and Real-World Applications of Modern Photonics is your comprehensive guide to understanding, designing, and applying modern light technologies. This book takes you on a journey from the fundamentals of photonics—covering the nature of light, optical laws, and color theory—to real-world engineering with today’s most important light sources. You’ll explore how LEDs work, how to design efficient lighting systems, and how to tackle practical challenges such as thermal management, power supply design, and optical performance. Beyond illumination, the book opens doors to specialized applications: horticultural lighting for plant growth, infrared and ultraviolet technologies, modern display systems from LCD to MicroLED, and the fascinating world of lasers—from their physics to their use in medicine, industry, and communication. It also connects light engineering to sustainability through solar energy and thermal radiation. Written with a strong practical focus, this book bridges theory and application. Whether you are an engineer, student, or advanced hobbyist, you’ll gain the tools to turn concepts into working solutions—from selecting components to building complete systems. If you want to understand light not just as a phenomenon, but as a powerful engineering tool, this book will illuminate the way.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v2.0 UpdateBattery Monitoring with Improved Analog Design Audio Latency MeasurementA Standalone Tool for Evaluating Errors and Latency in Audio Transmission Square Wave vs. Bode PlotChecking the Performances of an Audio Device embedded world 2026 Clever Coding with AIAI in Software Development for Electronics Engineers QA403 Audio AnalyzerAffordable Precision for Audio Professionals and Hobbyists EasyGimbalAutonomous Camera Tracking with AI, Stepper and Servo Motors Sigfox Breakout Board (2)Sending Messages Circuit ProtectionControlling Overvoltages with TVS Diodes Emerging Battery Testing ApproachesA New Era of Diagnostics AudiotronicsA First Preamplifier CANopenTermAn Open-Source Tool That Brings CAN to Makers and Engineers Alike Stabilization of Operational AmplifiersAvoiding Feedback Instability Err-lectronicsCorrections, Updates, and Readers’ Letters Signal ConditioningTips and Tricks to Fit Voltage Ranges TDR Attachment for OscilloscopesLength, Short Circuit, Mismatch: Measure Cables Using Reflections! From Life's ExperienceLED It Be Speaker Oscillator and Resonance TesterA Fully Experimental Project for Your Speakers Elektor Community Perspectives on Test and Measurement ESP32 Audio Transceiver Board (Part 5)Audio Processing and Remote Control 2026: An AI OdysseyAI Has a Context Problem Battery Storage for Balcony Power PlantsSmall Batteries, Big Impact

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Build Smart Applications with Raspberry Pi, Arduino, and ESP32 Discover how easy and exciting mobile app development can be with MIT App Inventor. This hands-on guide takes you from basic concepts to building real-world mobile applications using a simple visual programming approach—no prior coding experience required. You will create IoT and AI-powered apps for Android devices and explore how App Inventor can also be used with iPhones and iPads. Connect your applications to platforms such as Arduino UNO R4 WiFi, ESP32, Raspberry Pi Pico (2)W and Raspberry Pi 5, enabling you to build smart, connected systems. Inside the book, you will learn how to: Build interactive apps using buttons, images, sound, and multimedia Create text-to-speech and speech-recognition applications Develop camera-based and location-aware (GPS) apps Design useful tools such as calculators and educational apps Work with smartphone sensors like accelerometers and light sensors Build AI-powered applications, including voice assistants and image-generation features Send and receive messages, and create communication-based apps Connect mobile apps to hardware using Wi-Fi and Bluetooth Control real devices such as LEDs, motors, and sensors Designed for beginners, students, and hobbyists, this book focuses on learning by doing. By the end, you will have the skills and confidence to create your own innovative applications that interact with both the digital and physical worlds. Start building and turning your ideas into reality.

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This hands-on bundle lets you build real Edge AI applications with the Raspberry Pi Raspberry Pi AI HAT+ (13 TOPS) The Raspberry Pi AI HAT+ (13 TOPS) is an expansion board designed for the Raspberry Pi 5, featuring an integrated Hailo AI accelerator. This add-on offers a cost-effective, efficient, and accessible approach to incorporating high-performance AI capabilities, with applications spanning process control, security, home automation, and robotics. The AI HAT+ connects via the Raspberry Pi 5’s PCIe Gen3 interface. When the Raspberry Pi 5 is running a current version of the Raspberry Pi OS, it automatically detects the onboard Hailo accelerator, making the neural processing unit (NPU) available for AI tasks. Additionally, the rpicam-apps camera applications included in Raspberry Pi OS seamlessly support the AI module, automatically using the NPU for compatible post-processing functions. Raspberry Pi Camera Module 3 Raspberry Pi Camera Module 3 is a compact camera from Raspberry Pi. It offers an IMX708 12-megapixel sensor with HDR, and features phase detection autofocus. Camera Module 3 is available in standard and wide-angle variants, both of which are available with or without an infrared cut filter. Camera Module 3 can be used to take full HD video as well as stills photographs, and features an HDR mode up to 3 megapixels. Its operation is fully supported by the libcamera library, including Camera Module 3’s rapid autofocus feature: this makes it easy for beginners to use, while offering plenty for advanced users. Camera Module 3 is compatible with all Raspberry Pi computers. Book: Edge AI Made Practical – AI Projects for the Raspberry Pi with the AI HAT+ Edge AI is transforming everyday devices by putting intelligence where it matters most: directly inside the hardware. With on-device inference, a camera can recognize a visitor instantly, a phone can translate speech without streaming audio to the cloud, and a wearable can detect anomalies in real time—fast, private, and reliable even when the network disappears. This book is your practical guide to building exactly those kinds of systems with the Raspberry Pi AI HAT+ and the Hailo-8L accelerator. You’ll start with clear foundations: core AI and machine-learning concepts, how neural networks work, and what truly distinguishes Edge AI from cloud AI—plus an honest look at ethical considerations and future impacts. This bundle contains: Book: Edge AI Made Practical Raspberry Pi AI HAT+ (13 TOPS) Raspberry Pi Camera Module 3 Active Cooler for Raspberry Pi 5 FPC Display Cable for Raspberry Pi 5 (300 mm) Elektor Component Kit 40-pin GPIO Header Traffic Light Module LED red 5 V with built-in resistor LED yellow 5 V with built-in resistor LED green 5 V with built-in resistor LED blue 5 V with built-in resistor Breadboard (400 Tie-points) 10 Dupont wires male-female DHT22 sensor module Servo motor Required Raspberry Pi 5

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This bundle includes the Arduino UNO Q (2 GB) and the new book "Arduino UNO Q and AI". The Arduino UNO Q is the first UNO board with a hybrid dual-brain architecture, combining a powerful Linux processor with a real-time microcontroller – bringing advanced computing and precise control together on one board. Powered by a Qualcomm Dragonwing QRB2210 MPU running Debian Linux and a STM32U585 MCU for real-time tasks, the UNO Q is built for next-generation applications. From Edge Computing and AI to robotics and automation, it delivers high performance without sacrificing ease of use. Simply connect your peripherals and get started – no extra hardware required. Features Dual-core architecture: Linux MPU + real-time MCU Qualcomm Dragonwing QRB2210 with Debian Linux support STM32U585 microcontroller for deterministic control Runs Arduino sketches via Zephyr OS Ideal for AI, IoT, robotics, and industrial projects Specifications Microprocessor (MPU) Qualcomm Dragonwing QRB2210:Quad-core Arm Cortex-A53 @ 2.0 GHzAdreno GPU 3D graphics accelerator2× ISP (13 MP + 13 MP or 25 MP) @ 30 fps Microcontroller (MCU) STM32U585Arm Cortex-M33 up to 160 MHz2 MB flash memory786 KB SRAM RAM 2 GB LPDDR4 Power Supply From USB-C connector 5 V max at 3 AInput Voltage (VIN): 7-24 V Storage 16 GB eMMC USB 1× USB-C port with host/device role switching, power role switch and video output Connectivity Wi-Fi 5 (2.4/5 GHz) with onboard antennaBluetooth 5.1 with onboard antenna Interfaces I²C/I³CSPIPWMCANUARTPSSIGPIOJTAGADC Video Video output support via USB-CMIPI DSI pins on JMEDIA header Extra 4× RGB user-controllable LEDs8×13 Blue LED Matrix1× Qwiic connector voltage 3V3, I²C1× User push-buttonJCTL: MPU Remote Debug connector Audio Microphone IN / Headphone OUT / Line OUT on JMISC MPU Operating System Linux Debian OS with upstream support Real-time Operating System Arduino Core on Zephyr OS Containerization Docker and Docker Compose support Support Operating Systems for Arduino App Lab Windows: Windows 10 or later (64-bit)macOS: macOS 11 or later (64-bit)Linux: Ubuntu 22.04 or later, and Debian Trixie (64-bit) Dimensions 68.85 × 53.34 mm (UNO form factor) Downloads Datasheet User Manual Pinout Schematics Book: Arduino UNO Q and AI – Learn to Build Intelligent Embedded Systems Build smarter embedded systems with Arduino UNO Q. This book gives you the tools, knowledge, and confidence to turn ideas into intelligent, working solutions using the Arduino UNO Q platform. Discover how to build intelligent embedded systems with the Arduino UNO Q and AI. Unlock the full potential of the Arduino UNO Q, a next-generation platform that combines the real-time power of the STM32U585 microcontroller with the flexibility of a Qualcomm Dragonwing QRB2210 microprocessor. Learn how to rapidly prototype real-world applications using the Arduino IDE for low-level embedded control and Python in Arduino App Lab for high-level development. Build confidence through hands-on projects that guide you step by step from basic board features to complete working systems. Explore ready-to-use, AI based Arduino App Lab examples and see how they can jump-start your development and reduce time to deployment. Step into the world of Edge AI with a clear, practical introduction to Edge Impulse Studio—no prior AI experience required. Follow a complete, real-world workflow to create a Keyword Spotting AI application, covering data collection, model training, optimization, and on-device inference using the Edge Impulse Studio. Bridge the gap between embedded systems and machine learning and learn how to bring intelligence directly onto your hardware. Perfect for embedded engineers, educators, students, and makers looking to stay ahead in AI-enabled product development. This bundle contains: Arduino UNO Q (2 GB) (normal price: €50) Book: Arduino UNO Q and AI (normal price: €35)

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More than 475 Audio Circuits from 30 Years of Elektor This USB Stick contains over 475 different audio circuits from the volumes 1995-2025 of Elektor. The article search feature allows you to search full-text content. The results are always displayed as pre-formatted PDF documents. Highlights Surround-sound decoder Compact amp Sampling rate converter Battery powered preamplifier Titan 2000 amplifier Crescendo Millennium amplifier Audio-DAC/ADC IR-S/PDFI receiver and transmitter High-End Power Amp Hi-fi Wireless Headset Paraphase Tone Control and 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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Practical Low-Cost Methods for Reliable PCB Production This book explains how to carry out reliable SMD assembly using affordable tools and small-scale equipment. It follows the complete workflow step by step, including tool selection, solder paste handling, stencil use, component placement, reflow methods, inspection, and rework. The focus is on bench-level and small-lab production rather than industrial assembly lines. It shows practical methods for building single and double-sided SMD boards with repeatable results. Topics include solder paste and flux, temperature profiles, hot air and hotplate techniques, small reflow ovens, inspection methods, and defect correction. Checklists and example workflows are included to help reduce errors and improve consistency. Key features: Tools and supplies for SMD assembly and rework Solder paste types, storage, and handling Stencils and paste application methods Pick and place workflow and component orientation Temperature profiles and reflow methods Hot air, hotplate, and reflow oven processes Inspection and quality control Common defects such as tombstoning and solder bridges Practical rework and component replacement Bench-level professional workflows and checklists This book is designed as a practical bench reference for anyone who wants to assemble and troubleshoot their own SMD boards with reliable results.

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From SRPP and Mu-Follower to OTL Designs Tube amplifiers suffer from distortion. Fortunately, circuits such as the SRPP amplifier, mu-follower, and beta-follower produce minimal distortion even at output voltages of 50 to 100 Vpeak. These designs are often published with errors. Without a sound understanding of the theory, it is easy to arrive at a flawed design. In the first section of this book, we investigate the origin of distortion, while in the second we investigate the design of and SRPP and a mu-follower. On the internet we can find the most exotic designs. Evaluating them teaches us that these designs often make matters worse rather than better. In the chapter on incorrect SRPPs and mu-followers, we sometimes see bizarre and misguided designs where using a simple single-triode amplifier would perform much better. Push-pull output stages also exist. A great number of them are examined, and their similarity to the SRPP is discussed. This is done especially with the help of the theory behind the OTL based on the ‘mother’ of all OTLs, the Philips HF303. Finally, attention is given to frequency characteristics and technical matters such as the supply voltage and the filament power supply. To illustrate these points, there are a few designs covering the subjects discussed. This book presents much new theory that has not been published before. It is often an eye-opener, showing that many things have a beautiful and unexpected simplicity.

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The FNIRSI SWM-20 handheld spot welder is a high-efficiency, user-friendly, and easy-to-carry welding tool. It features dual-pulse spot welding technology, ensuring more stable and reliable welds, and also includes a convenient power bank function. Equipped with a 2.4-inch HD display, the SWM-20 offers clear and intuitive operation. Its rotary encoder knob allows users to adjust parameters quickly and precisely, making it easy to set the required welding settings and improving the overall user experience. Features 2-in-1: Spot Welder & 5000 mAh Power Bank 1200 A High-Power Output for Strong, Reliable Welds Dual-Pulse Technology for Cleaner & More Stable Welding Dual A-Grade Batteries with 8 Safety Protections 0.1–0.5 mm Multi-Material Welding Capability 10,000+ Precision Adjustment Levels for Professional Control 2.4-inch TFT Display with Real-Time Data Monitoring Specifications Max Welding Current 1200 A Battery Capacity 5000 mAh Charging 5 V/2.1 A Discharging 5 V/2.1 A Welding Materials Nickel, Iron, Stainless Steel Welding Thickness 0.1‒0.5 mm Level 4 Preset Combination Levels Dimensions 13.3 x 8.8 x 3.2 cm Weight 850 g Included 1x FNIRSI SWM-20 Spot Welder 2x Welding Pens 2x Replacement Tips 1x Nickel Strip 1x USB-C Cable 1x Manual Downloads Manual

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The FNIRSI LC1020E High-Precision LCR Meter with ESR tester is a portable and intelligent solution for testing electronic components, offering a basic accuracy of up to 0.3%. It is ideal for engineers, technicians, and makers. The device supports L/Q, C/D, and R/D measurements using both series and parallel equivalent circuit models, and features a 2.8-inch TFT color display. With preset thresholds and audio-visual alerts, it enables fast pass/fail evaluation, making it perfect for batch testing and quality control. Supporting test frequencies up to 100 kHz, it is well suited for high-frequency analysis of inductors, capacitors, and resistors. Features ±0.05% accuracy with 4.5-digit resolution Automatic R/L/C identification for fast measurements 5 test frequencies (100 Hz–100 kHz) & 3 voltage levels (0.1–0.6 V) Dual display: L/C/R/Z + X/D/Q/θ/ESR Sorting mode & bias voltage for batch testing Dual ports (3-/5-terminal) with 4-wire Kelvin support Data hold & logging for efficient workflow Compact, rechargeable (3000 mAh) – ideal for lab & field use Specifications General Test Frequency 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz Basic Accuracy 0.3% Display 2.8-inch TFT LCD display Display Digits Main Parameter: 4.5 digits Secondary Parameter: 4.5 digits Measurement Parameters Main Parameters: AUTO/R/C/L/Z Secondary Parameters: X/D/Q/θ/ESR Measurement Range L: 0-100H C: 0-100mF R: 0-10M Internal Bias 0.0 V, 0.5 V Test Level 0.1 V, 0.3 V, 0.6 V Calibration Functions Open circuit calibration, Short circuit calibration Comparison Function Used to calculate the relative error between the component measurement value and the nominal value, displayed as a percentage, and provides filtering results. Nominal values and tolerance can be set, with tolerance range adjustable from 0.1% to 99.9% Function Record Checks if the measured component data meets the set nominal value and tolerance, recording the number of successful and failed measurements Test Terminal Configuration Three-terminal, Five-terminal Output Impedance 100Ω Interface USB-C (Virtual serial port) Others Language settings, Screen brightness, Sound settings, Auto power-off, Calibration settings, System information Battery 3000 mAh Lithium battery Dimensions 18.5 x 8.5 x 3.5 cm Weight 680 g Capacitance (C) Range: 1mF-100mF 100 Hz: 5% ±5 digits 1 kHz: 3% ±5 digits 10 kHz: / 100 kHz: / Range: 1uF-1mF 100 Hz: 1% ±4 digits 1 kHz: 0.5% ±5 digits 10 kHz: 2% ±5 digits 100 kHz: 3% ±4 digits Range: 1nF-1uF 100 Hz: / 1 kHz: 0.3% ±2 digits 10 kHz: 0.4% ±2 digits 100 kHz: 1% ±4 digits Range: 1pF-1nF 100 Hz: / 1 kHz: 2% ±2 digits 10 kHz: 1.5% ±2 digits 100 kHz: 2% ±4 digits Inductance (L) Range: 1H-100H 100 Hz: 2% ±5 digits 1 kHz: 2% ±5 digits 10 kHz: / 100 kHz: / Range: 1mH-1H 100 Hz: 0.4% ±5 digits 1 kHz: 0.3% ±2 digits 10 kHz: 0.4% ±3 digits 100 kHz: 2.5% ±5 digits Range: 10uH-1mH 100 Hz: 3% ±5 digits 1 kHz: 0.5% ±4 digits 10 kHz: 0.5% ±3 digits 100 kHz: 1.5% ±5 digits Range: 1uH-10uH 100 Hz: / 1 kHz: 2% ±5 digits 10 kHz: 2% ±5 digits 100 kHz: 4% ±5 digits Resistance (R) Range: 1MΩ-10MΩ 100 Hz: 5% ±4 digits 1 kHz: 3% ±3 digits 10 kHz: / 100 kHz: / Range: 1KΩ-1MΩ 100 Hz: 0.4% ±4 digits 1 kHz: 0.2% ±2 digits 10 kHz: 0.3% ±3 digits 100 kHz: 0.6% ±5 digits Range: 1Ω-1KΩ 100 Hz: 1.5% ±4 digits 1 kHz: 0.3% ±2 digits 10 kHz: 0.3% ±3 digits 100 kHz: 0.6% ±5 digits Range: 10mΩ-1Ω 100 Hz: 4% ±4 digits 1 kHz: 2% ±5 digits 10 kHz: 2% ±5 digits 100 kHz: 5% ±5 digits Included 1x FNIRSI LC1020E LCR Meter 1x Kelvin Test Clip 2x Test Leads (1x black, 1x red) 1x Shorting Plate 1x USB-C Cable 1x Manual Downloads Manual Firmware V1.1

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This bundle includes the Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit and the new book "Experimenting with Red Pitaya STEMlab Gen 2". The Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit is a powerful and flexible platform for signal processing, data acquisition, and electronic measurement applications. Designed for engineers, developers, researchers, and educators, this kit provides everything required to start building advanced measurement and control systems. At the core of the kit is the STEMlab 125-14 PRO Gen 2 board, an upgraded and ultra-lightweight development platform. Powered by the Xilinx Zynq-7010 SoC with 512 MB of RAM, it combines FPGA programmability with ARM processing power to enable high-performance instrumentation and custom signal-processing solutions. The board offers 14-bit ADC and DAC resolution, a 125 MS/s sampling rate, an input range of ±20 V, and up to 60 MHz bandwidth. Its improved low-noise analog front-end, USB-C connectivity, and compact design make it suitable for demanding applications such as RF development, radar systems, photonics research, software-defined radio (SDR), and industrial automation. The Starter Kit includes all essential accessories for immediate use: a microSD card with preinstalled operating system, power supply, Ethernet cable for remote access, two 100 MHz oscilloscope probes, and SMA-to-BNC adapters for flexible signal connections. The Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit is an excellent platform for rapid prototyping, FPGA development, measurement instrumentation, and advanced electronics experimentation. Features 14-bit ADC and DAC resolution 125 MS/s sampling rate ±20 V input range Up to 60 MHz bandwidth Xilinx Zynq-7010 SoC (FPGA + ARM processor) 512 MB RAM Low-noise analog front- and back-ends Applications RF development and testing Radar and wireless systems Software-defined radio (SDR) Photonics and optical research Industrial automation and control systems Signal analysis and instrumentation Rapid prototyping of electronic measurement systems Specifications Processor Dual-core ARM Cortex-A9 FPGA AMD Xilinx Zynq-7010 SoC RAM 512 MB (4 Gb) Storage microSD card (up to 32 GB) Operating System Linux-based Red Pitaya OS ADC Resolution 14-bit DAC Resolution 14-bit Bandwidth 60 MHz (DC) Sampling Rate 125 MS/s Analog Input Channels 2 Analog Output Channels 2 Input Voltage Range ±1 V (LV) / ±20 V (HV) Input Impedance 1 MΩ / 10 pF Output Voltage Range ±1 V Ethernet 1x Gigabit Ethernet (RJ45) USB 2x USB-C 2.0 (for power and console) Digital I/O 16x GPIO (3.3 V) Communication Interfaces I²C, SPI, UART, CAN Power Supply 5 V/3 A via USB-C Dimensions 106.8 x 60.0 x 17.9 mm Included 1x Red Pitaya STEMlab 125-14 PRO Gen 2 board 2x 100 MHz oscilloscope probes 2x SMA-to-BNC adapters 1x microSD card with preinstalled OS 1x USB-C Power supply 1x Ethernet cable Downloads Documentation Schematics Book: Experimenting with Red Pitaya STEMlab Gen 2 With this new book, Red Pitaya goes beyond a versatile board. It becomes a powerful laboratory instrument for precision measurement, analysis, and control. From the fundamentals of electronic project development, monitoring, control, and design to testing, this book walks you step-by-step through everything you need to know to harness the full potential of Red Pitaya hardware and software. The book presents real-time, FPGA-based projects that are developed on a PC using the Vivado environment, then transferred to the Red Pitaya for execution and testing. You will learn about enhanced performance, expanded I/O capabilities, improved FPGA features, and advanced connectivity options that open up new frontiers for precision measurement, monitoring, and control in your embedded applications. Inside the book you will discover: A deep dive into Red Pitaya architecture and hardware design Electronic experiments using Red Pitaya for measurement and monitoring Hands-on projects using the Python programming language Practical guidance for FPGA programming using Red Pitaya Red Pitaya FPGA projects using the Verilog HDL under Vivado IDE Practical design of electronic projects including measurement and testing Step-by-step examples that bridge theory and real-world implementation Whether you are designing your own electronic circuits, developing signal analysis tools, or creating real-time control or monitoring systems, this book provides you the knowledge and confidence you need to fully learn and customize the Red Pitaya platform.

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The Elektor Zener Diode Tester is essentially a constant-current source that can be switched in steps from 1 to 50 mA. It can be used to test Z-diodes up to a maximum of 54 V. Thanks to a 60-V step-up converter, the device can be powered by the usual 5 to 12 V. The principle of this tester is straightforward. A Z-diode or other DUT (device under test, such as an LED) is biased by an adjustable current source. The voltage across the DUT can be measured with a multimeter. The voltage of most (small) Z-diodes is specified at a current of 5 mA. Depending on the application, the voltage at other currents can also be of interest. That is why six current settings are available: 1, 2, 5, 10, 20, and 50 mA. LEDs are often specified at a current of 20 mA. What can be tested is: Whether a Z-diode is defective (short circuit or high impedance). Whether a Z-diode exhibits the correct Z-voltage. How a Z-voltage changes with different currents. What exact voltage is present at an integrated voltage reference. Whether LEDs in a series chain differ in brightness (hence the 20 mA current). What the current gain is for different base currents in (power) transistors. The kit contains all parts listed in the bill of materials including PCB and enclosure. Specifications Supply voltage 5…12 V/2 A (USB-C) Supply current (Itest = 50 mA) 1.1 A @ 5 V / 412 mA @ 12 V Selectable currents 1, 2, 5, 10, 20, and 50 mA Max. test voltage >54 V @ Itest ≥1 mA Max. output voltage 60 V @ Itest = 0 mA Voltage limit at 5 V 4.5 V @ Itest = 1 mA / 5.18 V @ Itest = 50 mA Enclosure dimensions 110 x 82 x 44 mm PCB size 105.4 x 67.3 mm Connections 4 mm banana sockets for multimeter 2 mm banana sockets for test clips USB-C socket for power supply Included Resistors R1 = 3.3 kΩ, 600 mW, 1% R2 = 0.15 Ω, 1 W, 5%, LS 12.7 mm, ø 3.5 mm R3, R8 = 180 Ω, 600 mW, 1% R4, R6, R16 = 1 kΩ, 600 mW, 1% R5, R19 = 47 kΩ, 600 mW, 1% R7 = 3.9 kΩ, 1 W, 5%, LS 12.7 mm, ø 3.5 mm R9, R10, R12 = 10 kΩ, 600 mW, 1% R11, R13 = 100 Ω, 600 mW 1% R14 = 249 Ω, 600 mW, 1% R15 = 499 Ω, 600 mW, 1% R17 = 2.49 kΩ, 250 mW, 1% R18 = 4.99 kΩ, 250 mW, 1% Capacitors C1 = 470 uF / 35 V, 20%, Ir = 1.86 A, ø 12.5 mm, LS 5 mm, ESR = 0.038 Ω (Panasonic EEUTP1V471) C2 = 1 uF / 100 V, 10%, X7R, LS 5 mm C3 = 2.2 nF / 50 V, 10%, X7R, LS 5 mm C4, C7 = 100 nF / 100 V, 10%, X7R, LS 5 mm C5 = 100 uF / 100 V, 20%, ø 14 mm max., LS 5 mm C6 = 1 nF / 100 V, 10%, X7R, LS 5 mm Inductor L1 = 100 uH, Irms = 2.4 A, Isat = 3.5 A, 0.09 Ω, radial, pitch 2.5/5/10 mm, ø 14 mm max. (Kemet SBC8-101-242) Semiconductors D1 = MUR120G, DO-41 D2, D4 = STPS3150RL, DO-201AD D3 = Z-diode, 18 V, 1.3 W (BZX85C18) D5 = Z-diode, 5.1 V, 0.5 W (1N5231B) LED1 = LED in pushbutton S1 LED2 = LED, green, 3 mm IC1 = MC34063, DIP-8 IC2 = LM4040BIZ-5.0/NOPB, TO-92 (TO-226AA-3) IC3 = TL051CP, DIP-8 T1 = BC327.25, TO-92 T2 = STP40NF10L, TO-220 T3 = IRF9510PBF, TO-220 T4 = 2N7000, TO-92 Others K1, K2, S1, S3 = 2-way screw terminal block, LS 3.5 mm, max. 1.5 mm² connected to K1 = USB-C socket, 30 V/3 A, chassis mounted, wired, 9 x 16 mm connected to K2 = Banana Connector, 2 mm, Socket, 60 VDC, Panel Mount, red (Multicomp 24.102.1) connected to K2 = Banana Connector, 2 mm, Socket, 60 VDC, Panel Mount, black (Multicomp 24.102.2) Test clip, red, 30 VAC/60 VDC (Hirschmann 931467101) Test clip, black, 30 VAC/60 VDC (Hirschmann 931467100) S1 = Pushbutton, panel mount, SPST-NO, 30 DC/100 mA, with red LED S2 = Rotary Switch, 6 position, 2 pole, 30°, 250 V/150 mA S3 = Toggle switch, panel mount, SPDT, solder lugs, 28 VDC T2, T3 = Heat sink, 15°C/W, FK 214 SA-CB Enclosure Hammond 1591XXSSBK, ABS, 110 x 82 x 44 mm Knob for S2, round shaft 6 mm, ø 21 mm, with indicator line (Multicomp CP-LB21-6-6D) 4 x Self-tapping screw #4-1/4", carbon steel, pan head Banana plug, red, 2 mm, 60 VDC (Multicomp 25.205.1) Banana plug, black, 2 mm, 60 VDC (Multicomp 25.205.2) Banana socket, black 4 mm, panel mount Banana socket, red 4 mm, panel mount for LED1, LED2 = Pin header, 1 x 2, vertical, pitch 2.54 mm for LED1, LED2 = Pin socket, 1 x 2, vertical, pitch 2.54 mm for T2, T3 = M3 screw, 10 mm, steel, pan head 2 x M3 washer, plain, steel 4 x M3 nut for IC1, IC3 = DIP-8 socket Wire, black, 0.25 mm² (24 AWG), stranded 14 x 0.15 mm, 1 m Wire, red, 0.25 mm² (24 AWG), stranded 14 x 0.15 mm, 1 m PCB 250772-1 v1.1 Links Elektor Labs

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AI in Practice Dive into the fascinating world of robotics and automation! This Elektor Special shows you how to build your own robots with creativity, a little know-how, and affordable technology. From your first DIY project with Arduino or Raspberry Pi to intelligent systems with AI – this issue makes modern robotics understandable and accessible. Discover practical instructions, inspiring projects, and exciting insights into the maker scene. Learn how experimentation, community, and openness give rise to true innovation – and why robotics is so much more than just a technical hobby. Contents Imagination turns into reality Arduino-controlled Drawing Robot GalaxyRVR Mars Rover Kit for Arduino YDLIDAR X4Pro Lidar xHuskyLens AI Camera DOF Robot Arm with Raspberry Pi Pico Manufacturing Robots with Fischertechnik Pneumatic Industrial Robot Why Do We Keep Building Robot Dogs? Elektor Mini-Wheelie Robot Vehicles and Autonomous Driving

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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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Learn to Build Intelligent Embedded Systems Build smarter embedded systems with Arduino UNO Q. This book gives you the tools, knowledge, and confidence to turn ideas into intelligent, working solutions using the Arduino UNO Q platform. Discover how to build intelligent embedded systems with the Arduino UNO Q and AI. Unlock the full potential of the Arduino UNO Q, a next-generation platform that combines the real-time power of the STM32U585 microcontroller with the flexibility of a Qualcomm Dragonwing QRB2210 microprocessor. Learn how to rapidly prototype real-world applications using the Arduino IDE for low-level embedded control and Python in Arduino App Lab for high-level development. Build confidence through hands-on projects that guide you step by step from basic board features to complete working systems. Explore ready-to-use, AI based Arduino App Lab examples and see how they can jump-start your development and reduce time to deployment. Step into the world of Edge AI with a clear, practical introduction to Edge Impulse Studio—no prior AI experience required. Follow a complete, real-world workflow to create a Keyword Spotting AI application, covering data collection, model training, optimization, and on-device inference using the Edge Impulse Studio. Bridge the gap between embedded systems and machine learning and learn how to bring intelligence directly onto your hardware. Perfect for embedded engineers, educators, students, and makers looking to stay ahead in AI-enabled product development.

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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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The ZD-8962B soldering station features an adjustable temperature range of 160°C to 480°C with an output power of 70 W. Equipped with an integrated heating element in the soldering tip, the station reaches the desired operating temperature in just 8 seconds. A large digital display provides real-time monitoring, showing both the preset target and the actual temperature of the iron for precision control. Additionally, the station is ESD-safe, ensuring sensitive electronic components are fully protected from electrostatic discharge during use. Specifications Power 70 W Input voltage 220-240 V AC/50 Hz Output voltage 20 V Temperature range 160°C – 480°C (320°F – 896°F) Heating time ~8 s Display Large, two-line LED display for showing target and actual temperature Special features ESD protection, Sleep mode/energy-saving function, Switch between °C and °F Included ZD-8962B Soldering station unit Soldering iron Soldering tip N12-1 Soldering iron stand with copper brush and sponge Soldering wire stand with lead-free soldering wire (10 g) Power cable (EU) Manual

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Practical Projects and Programs With Experimenting with Red Pitaya STEMlab Gen 2, Red Pitaya goes beyond a versatile board. It becomes a powerful laboratory instrument for precision measurement, analysis, and control. From the fundamentals of electronic project development, monitoring, control, and design to testing, this book walks you step-by-step through everything you need to know to harness the full potential of Red Pitaya hardware and software. The book presents real-time, FPGA-based projects that are developed on a PC using the Vivado environment, then transferred to the Red Pitaya for execution and testing. You will learn about enhanced performance, expanded I/O capabilities, improved FPGA features, and advanced connectivity options that open up new frontiers for precision measurement, monitoring, and control in your embedded applications. Inside the book you will discover: A deep dive into Red Pitaya architecture and hardware design Electronic experiments using Red Pitaya for measurement and monitoring Hands-on projects using the Python programming language Practical guidance for FPGA programming using Red Pitaya Red Pitaya FPGA projects using the Verilog HDL under Vivado IDE Practical design of electronic projects including measurement and testing Step-by-step examples that bridge theory and real-world implementation Whether you are designing your own electronic circuits, developing signal analysis tools, or creating real-time control or monitoring systems, this book provides you the knowledge and confidence you need to fully learn and customize the Red Pitaya platform.

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With the JOY-iT PS1440-C-Pro, you get a programmable laboratory power supply that delivers DC voltages ranging from 0.01 to 60 V and DC currents from 0.01 to 24 A at the voltage output. The intuitive control panel allows you to program, store, and recall up to 9 different DC voltage settings. You can also configure individual protection and limiting functions—such as overvoltage protection. All settings are easily adjusted via the keypad and/or rotary control and are clearly shown on the high-resolution 2.4" color display. For enhanced connectivity, the PS1440-C-Pro includes an RS485 interface for robust, long-distance communication. This makes it ideal for complex setups where signal stability, noise immunity, and reliable data transfer are critical. The included connector ensures a secure connection, improving the overall reliability and performance of your laboratory equipment setup. Features Complete device ready for immediate use RS485 interface Battery charging function Values can be entered conveniently via keypad Over current & over voltage protection adjustable Integrated RTC, NTC temperature sensor Included detailed documentation in English, German & French Specifications Input voltage 230 V Output voltage 060 V Output current 0-24 A Output power 0-1440 W Input voltage accuracy ±1% +5 digits Output voltage accuracy ±0.3% +3 digits Output current accuracy ±0.5% +5 digits Battery voltage ±0.5% +3 digits Input voltage measurement resolution 0.01 V Output voltage measurement resolution 0.01 V Current measurement resolution 0.01 V Battery voltage measurement resolution 0.01 V Response time in constant voltage mode 2 ms @ 0.1-5 A Load regulation in constant voltage mode ±0.1% +2 digits Load regulation in constant current mode ±0.1% +3 digits Measuring range electric charge 0-9999.99 Ah Measuring range energy 0-9999.99 Wh Statistical errors in electric charge & energy ±2% Output ripple 100 mV VPP @ 12 V150 mV VPP @ 24 V Sensor temperature detection range −10~100°C (0-200°F) Sensor temperature detection accuracy ±3°C (±6°F) Working mode Step-down operation Screen brightness setting Level 0-5, 6 levels in total Permissible working temperature −10~40°C (0-104°F) Dimensions 170 x 93 x 340 mm Included JOY-iT PS1440-C Power Supply 2-pin connector for RS485 interface Power cord Manual Downloads Datasheet MODBUS Protocol PC Software Driver for Windows

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The Most Iconic Oscilloscopes in Electronics History The 7000 Series was the most iconic family of oscilloscopes in the history of technology. Introduced in 1969 by Tektronix, the sector’s leader at the time, this remarkable line of instruments defined an era and became a benchmark for generations of engineers, researchers, and technicians. Throughout the 1970s and well beyond, 7000-Series oscilloscopes were a constant presence in laboratories, universities, and industrial facilities around the world. Their modular plug-in architecture, exceptional flexibility, and outstanding performance embodied the engineering philosophy that made Tektronix synonymous with accuracy, innovation, and reliability. This book offers an in-depth exploration of the 7000-Series oscilloscopes, combining historical context, technical analysis, and practical insight into their design and restoration. Conceived as a continuation of Tektronix Epic Oscilloscopes, this work expands the subject into two volumes: the first devoted to mainframes and core technologies, the second focused entirely on plug-ins.

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