EASTER SALE: Order the Geekworm KVM-A3 Kit now and receive the e-book Raspberry Pi Full Stack (worth €35) for FREE! KVM stands for Keyboard, Video, and Mouse and it is a powerful open-source software that enables remote access via Raspberry Pi. This KVM-A3 kit is designed based on the Raspberry Pi 4. With it, you can turn your computer on or off, restart it, configure the UEFI/BIOS, and even reinstall the operating system using a virtual CD-ROM or flash drive. You can either use your own remote keyboard and mouse, or let KVM simulate a keyboard, mouse, and monitor – presented through a web browser as if you were directly interacting with the remote system. It's true hardware-level access with no dependency on remote ports, protocols, or services! Features Designed especially for KVM (an open and affordable DIY IP-KVM based on Raspberry Pi) Compatible with Raspberry Pi 4 (not included) Fully compatible with PiKVM V3 OS Control a server or computer using a web browser HDMI Full HD capture based on the TC358743 chip OTG keyboard and mouse support; mass storage drive emulation Hardware Real-Time Clock (RTC) with CR1220 coin battery socket Equipped with a cooling fan to dissipate heat from the Raspberry Pi Features solid-state relays to protect Raspberry Pi GPIO pins from computer and ESD spikes ATX control via RJ45 connector: switch the machine on or off, reset it, and monitor HDD and power LED status remotely 10-pin SH1.0 connector reserved for future I²S HDMI audio support 4-pin header and spacers reserved for I²C OLED display Included KVM-A3 Metal Case for Raspberry Pi 4 X630 HDMI to CSI-2 Module (for video capture) X630-A3 Expansion Board (provides Ethernet, cooling, RTC, power input, etc.) X630-A5 Adapter Board (installed inside the PC case; connects the computer motherboard to the IO panel cable of the PC case) 0.96-inch OLED Display (128 x 64 pixels) Ethernet Cable (TIA/EIA-568.B standard; also serves as the ATX control signal cable) Downloads Wiki PiKVM OS

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The PeakTech 1094 two-pole voltage tester is a reliable and practical tool for measuring voltages up to 400 V. It uses LED indicators to display voltage levels at 12 V, 24 V, 50 V, 120 V, 240 V, and 400 V. The device supports both AC and DC voltage measurements and automatically detects and displays polarity when measuring DC voltages – no manual switching between AC and DC is required. This tester operates without batteries, ensuring it is always ready for use, even after extended periods of inactivity. With its IP54 protection rating, the PeakTech 1094 is robust and resistant to dust and splashing water, making it suitable for use in both indoor and outdoor environments. Specifications DC Voltage (max.) 400 V AC Voltage (max.) 400 V Over voltage category CAT III 400 V Accuracy -30% to 0% of the measured value Voltage test Automatically Polarity check Entire measuring range Range selection Automatically Response time <0.1s AC Voltage frequency range 50/60 Hz Dimensions 223 x 40 x 32 mm Weight 95 g Downloads Manual

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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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15 Sensor Modules & 21 Tutorials The Elecrow All-in-One Starter Kit for Arduino is the perfect choice for beginners looking to explore the world of Arduino in a fun and accessible way. The kit includes more than 20 interactive tutorials, ranging from easy to advanced. These step-by-step guides help you master sensor usage, develop logical thinking skills, and spark your creativity. The kit contains 15 sensors in total: 14 built-in sensors and 1 humidity sensor with a Crowtail interface. Each sensor offers unique features and functions, making them ideal for Arduino novices. Additionally, the kit includes 6 Crowtail interfaces, enabling compatibility with over 150 types of Crowtail sensors and offering excellent expandability. These features make it a great entry-level tool for fostering logical thinking and innovation. Unlike most starter kits, this all-in-one kit uses a unified board design — no breadboard, no soldering, and no wiring required. This allows you to focus entirely on programming and learning Arduino. Features 15 sensors with different functions, 21 creative tutorials Common board design for sensors, no need to solder wires, direct use Portable suitcase (small and exquisite) Reserved 6 Crowtail interfaces (3x I/O, 2x I²C, 1x UART) Visualized silk screen printing, corresponding to the characteristics of each sensor Specifications All-in-one Starter Kit for Raspberry Pi Pico 2 All-in-one Starter Kit for Arduino Main Processor Raspberry Pi Pico 2 RP2350 ATmega328P Number of Sensors 17 sensors 15 sensors (including 1 Humidity sensor) Sensor Board Design Integrated sensor board, no soldering or complex wiring required Display 2.4-inch TFT full-color touch screen N/A Ambient Lights 20 full-color ambient lights, switchable via touch screen N/A Built-in Mini Games Yes No Expansion Interfaces N/A 6 Crowtail interfaces(3x I/O, 2x I²C, 1x UART) Programming Environment Based on Arduino software Number of Tutorials 21 creative tutorials Interface USB-C Dimensions 195 x 170 x 46 mm Weight 380 g 340 g Included 1x Elecrow All-in-One Starter Kit for Arduino 1x Moisture Sensor with Cable 1x IR Remote Control 1x USB-C Cable Downloads Datasheet Manual Wiki

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This PCIe 3.0 to dual M.2 HAT enables the Raspberry Pi 5 to access two NVMe SSDs, Hailo-8/8L (M.2 key B+M only), and Google Coral AI accelerators at PCIe 3.0 speeds. Features Dual M.2 Slots with PCIe 3.0 Speed: Utilizes the ASMedia ASM2806 PCIe 3.0 switch chip to ensure optimal performance, overcoming the limitations of PCIe 2.0. Stable Power Supply: Additional pogo pins provide extra power to ensure a stable high-speed connection. Multiple Size Support: Compatible with M.2 standard sizes 2230, 2242, 2260, and 2280. Back-mounted Design: Keeps the 40-pin GPIO free for use, allowing compatibility with other Raspberry Pi HATs. User-friendly Design: The S-shaped FPC cable does not obstruct the microSD card slot. Open Source Case: Seeed’s M.2 HATs are not compatible with the official Raspberry Pi case, but an adapted 3D-printable case (STP file) is provided. Applications Simultaneously supports AI acceleration and high-speed SSD storage Connects dual NVMe SSDs for large storage capacity Booting a Raspberry Pi from the SSD Specifications M.2 Slots 2 Max. PCIe Speed PCIe Gen3.0 PCIe Switch Chip ASM2806 M.2 Size Support 2280/2260/2242/2230 Max. Power Supply 5 V/3 A (max 3A: Pogo pin 2A + PCIe connector 1A) Cable FPC Assembly Method Back installation Dimensions 87 x 55 x 10 mm Included 1x Seeed Studio PCIe 3.0 to Dual M.2 HAT for Raspberry Pi 5 2x FPC cables (50 mm) 1x Screws & stud pack Downloads Wiki

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The JOY-iT JDS2960 is a 2-channel signal generator capable of producing signals up to 60 MHz. Its compact design and the option to operate it with a power bank make it ideal for mobile use. With a variety of waveforms, including sine, square, triangle, pulse, half-wave, and more, it is suitable for various measurement technology applications. Additionally, the JDS2960 features a 1-channel frequency allocation. Its high frequency accuracy of ±20 ppm and stability of ±1 ppm/3 h ensure excellent signal quality and great flexibility. The 2.4-inch TFT color display provides user-friendly operation and enables a wide range of applications. Features 2 Channels Up to 60 MHz Robust aluminum housing 1-channel frequency counter Up to 20 Vpp Many different pre-programmed waveforms and up to 60 user-defined waveforms Pulse function Specifications Channels 2-channel Signal Generator1-channel Frequency meter Frequency range Sine: 0-60 MHzSquare, triangle: 0-25 MHzTTL, Pulse: 0-6 MHz Signal forms Sine, square, triangle, pulse, half/solid wave, exponential rise/fall, etc. Measuring range frequency counter 1-100 MHz Frequency accuracy ±20 ppm Frequency stability ±1 ppm/3 h Sampling rate 266 MSa/s Display 2,4" TFT color LCD Vertical shaft resolution 14 bits Amplitude range <10 MHz: 0-20 Vpp>10 MHz: 0-10 Vpp Amplitude resolution 1 mV Amplitude stability ±5%/5h Amplitude flatness <10 MHz: ±5%>10 MHz: ±10% Impedance of output 50 Ω ±10% Distortion factor <0.8% (20 Hz-20 KHz, 0 dBm) Dimensions 145 x 95 x 55 mm Weight 900 g Included 1x JOY-iT JDS2960 2-ch Signal Generator 1x Power supply unit 1x BNC-BNC cable 2x BNC crocodile clip cables 1x USB-DC power cable 1x USB data cable Downloads Datasheet Manual Software

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Create lightning with the touch of your fingers or the clap of your hands The Plasma Magic Ball is a cutting-edge tech gadget and an eye-catching piece of art. Inside the glass sphere, a special gas mixture creates mesmerizing light effects when activated by high-frequency current – like holding a storm in your hands. Perfect for use at home, in the office, schools, hotels, or bars, it’s a unique decorative element that sparks curiosity. Looking for a fun and unusual gift? The Plasma Magic Ball is a great choice for friends and family alike. Despite its stunning effects, the Plasma Magic Ball uses very little electricity. The glass itself is made of specially hardened, high-strength material and can withstand temperatures of up to 522°C (972°F). Specifications Material Plastic Ball diameter 6 inch (15 cm) Input voltage 220 V Output voltage 12 V Power 15 W Dimensions 25 x 15.5 x 15.5 cm

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Take control of your smart environment with the compact and powerful 4-inch ESP32-S3 IPS Touchscreen Control Panel. Designed for high performance and versatility, this sleek 86-box format panel integrates advanced connectivity, intuitive touch control, and real-time environmental sensing. Features Powerful Core Module WT32-S3-WROVER-N16R8 4-inch IPS full-screen display Resolution: 480 x 480 pixels (RGB565 format) Screen Driver IC: GC9503V Touch Controller IC: FT6336U Equipped with an SHT20 Temperature and Humidity Sensor for real-time monitoring of environmental conditions. RS485 Interface using an automatic transceiver circuit Built-in WiFi and Bluetooth Applications Smart Home Control Panels Industrial Automation Interfaces Environmental Monitoring Systems IoT Projects and Custom Smart Solutions

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The JLINK V9 USB-JTAG Arm Emulator/Debugger is a high-performance and reliable tool for programming and debugging ARM Cortex-M, Cortex-A/R, and other supported microcontrollers via JTAG and SWD interfaces. Features Universal Compatibility: Supports a wide range of ARM-based MCUs and cores including Cortex-M0, M3, M4, M7, A5, A7, A9, and R4. High-Speed Performance: Fast data throughput for both flash programming and real-time debugging with minimal latency. Multi-Interface Support: Offers both JTAG and SWD modes, enabling flexible use in different development environments. Plug & Play via USB: Easy connection to your PC with USB 2.0 interface; no external power supply required. Robust Software Support: Fully compatible with SEGGER J-Link software tools and supported by major IDEs including Keil MDK, IAR EWARM, SEGGER Embedded Studio, and others. Included 1x JLINK V9 USB-JTAG Arm Emulator/Debugger 1x USB Cable 1x Connector Cable

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Practical Applications and Project with Arduino, ESP32, and RP2040 Immerse yourself in the fascinating world of control engineering with Arduino and ESP32! This book offers you a practical introduction to classic and modern control methods, including PID controllers, fuzzy logic, and sliding-mode controllers. In the first part, you will learn the basics of the popular Arduino controllers, such as the Arduino Uno and the ESP32, as well as the integration of sensors for temperature and pH measurement (NTC, PT100, PT1000, and pH sensor). You will learn how to use these sensors in various projects and how to visualize data on a Nextion TFT display. The course continues with an introduction to actuators such as MOSFET switches, H-bridges, and solid-state relays, which are used to control motors and actuators. You will learn to analyze and model controlled systems, including PT1 and PT2 control. The book focuses on the implementation of fuzzy and PID controllers for controlling temperature and DC motors. Both the Arduino Uno and the ESP32 are used. The sliding-mode controller is also introduced. In the second-to-last chapter, you will explore the basics of neural networks and learn how machine learning can be used on an Arduino. In the last chapter, there is a practical example of a fuzzy controller for feeding electricity into the household grid. This book is the perfect choice for engineers, students, and electronics engineers who want to expand their projects with innovative control techniques.

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The FNIRSI CTG-20 is a coating thickness gauge designed for measuring the thickness of electroplated coatings or coatings on metal surfaces. It can accurately measure non-magnetic coatings (such as paint) on magnetic materials like steel or iron, as well as coatings on non-magnetic materials such as aluminum. Equipped with a built-in precision probe and a rechargeable lithium battery, the device automatically detects substrate properties and determines coating thickness using electromagnetic induction and eddy current effects. This robust instrument delivers fast and highly accurate measurements, making it ideal for applications in manufacturing, the chemical industry, the automotive sector, and other testing fields. Specifications Measuring Range 0-1400 μm Accuracy ±3% +2 μm Resolution Ratio 0.1 μm Calibration Zero point calibration, Multi-point calibration Unit μm, mil Minimum Convex Curvature Radius 5 mm Minimum Convex Curvature Radius 25 mm Minimum measurement area diameter 20 mm Battery 600 mAh Lithium battery Charging Interface USB-C Features Data Storage, Rotatable Screen, Putty Powder Test, Auto Power Off Dimensions 115 x 48 x 18 mm Weight 83 g Included 1x FNIRSI CTG-20 Coating Thickness Gauge 1x USB cable 1x Manual Downloads Manual

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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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NEW: Now incl. volume 2024 + Elektor GPT 5 Elektor Decades (’70s, ’80s, ’90s, ’00s, and ’10s) on a USB Stick This USB stick (32 GB, USB 3.0) is loaded with all the Elektor magazine English editions (as PDFs) from 1974 to 2024. Elektor engineers, authors, and editors aim to inspire you to master electronics and computer technology by presenting professionally designed circuits that are easy to build. We also cover the latest developments in electronics and information technology. With the Elektor Archive on a USB stick, you can browse our previous English editions at your convenience and learn about MCU-based projects, robotics, electronics testing, embedded programming, analog techniques, and much more. All the Elektor magazine editions are stored as PDFs on a 32-GB USB stick (USB 3.0). The 10,000+ articles have been classified by date of publication (month/year), and a comprehensive index enables you to search the entire USB stick. Subject areas include: Audio & video Computers & microcontrollers Radio, hobby & modelling Home & garden Power supplies & batteries Test & measurement Software And everything else that doesn’t fit in one of these categories. NEW Elektor GPT is an AI-powered tool that helps users navigate through the decades-long Elektor archive. Using advanced search algorithms and natural language processing, Elektor GPT quickly finds articles, projects, and other resources from the archive. Specifications USB USB 3.0 Storage 32 GB Interfaces 1x USB-A1x USB-C System requirements PC with Adobe Reader 7.0 or higher Web browser

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A Combat Guide against E-waste and Throwawayism This book is for anyone who enjoys tinkering with analog and digital hardware electronics. Regardless of the sophistication of your workspace, only basic tools are required to achieve truly satisfying results. It is intended as a reference guide among other hardware repair publications you may have in your library. However, the book goes a step further than most other repair guides in addressing issues in the modern era of discarded electronics called e-waste. E-waste should be put to good use. Producing anything new requires not just precious resources and labor, but also energy to make and deliver it to global retail shelves. Your talents and love of electronics can be put to good use by rescuing and resurrecting at least selected units from this endless stream of e-waste. Examples include either restoring through repair, or salvaging reusable electronic and mechanical components for your next project. Smart tips are provided throughout the book, and much information is tabulated for easy reference. The book expands age-old repair and hacking techniques applied for repair on the workbench into clever methods and applications to achieve effective results with discarded or “non-servicable” electronic consumer products. The final chapter provides real-life examples using all of the previously discussed content in a summarized form for each example repair type.

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32 new Projects, Practical Examples and Exercises with the Elektor Arduino Nano MCCAB Training Board Electronics and microcontroller technology offer the opportunity to be creative. This practical microcontroller course provides you with the chance to bring your own Arduino projects and experience such moments of success. Ideally, everything works as you imagined when you switch it on for the first time. In practice, however, things rarely work as expected. At that point, you need knowledge to efficiently search for and find the reason for the malfunction. In this book for advanced users, we delve deep into the world of microcontrollers and the Arduino IDE to learn new procedures and details, enabling you to successfully tackle and solve even more challenging situations. With this book, the author gives the reader the necessary tools to create projects independently and also to be able to find errors quickly. Instead of just offering ready-made solutions, he explains the background, the hardware used, and any tools required. He sets tasks in which the reader contributes their own creativity and writes the Arduino sketch themselves. If you don’t have a good idea and get stuck, there is, of course, a suggested solution for every project and every task, along with the corresponding software, which is commented on and explained in detail in the book. This practical course will teach you more about the inner workings of the Arduino Nano and its microcontroller. You will get to know hardware modules that you can use to realize new and interesting projects. You will familiarize yourself with software methods such as ‘state machines,’ which can often be used to solve problems more easily and clearly. The numerous practical projects and exercise sketches are once again realized on the Arduino Nano MCCAB Training Board, which you may already be familiar with from the course book ‘Microcontrollers Hands-on Course for Arduino Starters’, and which contains all the hardware peripherals and operating elements we need for the input/output operations of our sketches. Readers who do not yet own the Arduino Nano MCCAB Training Board can purchase the required hardware separately, or alternatively, build it on a breadboard.

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