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As demand for solar panel installation has risen sharply, especially for installations larger than balcony power plants, the order books of solar companies are full. If you ask for a quote today, you may have to wait a while, if your request isn't simply postponed indefinitely. Another consequence of the solar boom is that some companies are charging very high prices for installations. Yet there is an obvious and radical solution to the problem of excessive prices: Do it yourself, as the English say. The price of materials is currently affordable, and it's the ideal time for those who do the work themselves. They couldn't save more. Add to this the satisfaction of doing something useful, both economically and ecologically, and the pleasure of building yourself. In this special issue, you'll find a wide selection of Elektor assemblies, from solar panel controllers to solar water heaters and solar panel orientation systems. The issue also contains practical information on solar panel installation and the technology behind them. Finally, there are a number of articles on the subject of balcony power plants, from how to install them to how to connect them to the Internet... Contents BASICS Dimensioning Photovoltaic Panel ArraysAn introduction to photovoltaic energy and the commonest techniques,followed by simplified calculation models and setup guidelines. Light Sensor TechnologyMeasuring daylight using LEDs. Solar Power Made SimpleSolar charging with and without a controller. Cable Cross-sections and Energy Losses in Solar SystemsKey considerations on the minimum values to respect for electricalcurrent in solar panel cabling. Solar ModulesEverything you always wanted to know about solar panels... Ideal Diode ControllerDiode Circuits with Low Power Dissipation. TIPS Tracking for Solar Modules zBot Solar/Battery Power Supply Solar Cell Array Charger with Regulator Solar Cell Voltage Regulator Solar-Powered Night Light Alternative Solar Battery Charger PROJECTS Energy LoggerMeasuring and Recording Power Consumption. Tiny Solar SupplySunlight In, 3.3 V Out. A Do-It-Yourself DTURead Data from Small Inverters by μC. Solar ChargerPortable energy for people on the move. Solar Thermal Energy RegulatorMaximum power point tracking explored. 2-amp Maximum Power Tracking ChargerSolar Power To The Max. Computer-driven HeliostatFollow the sun or the stars. Garden LightingUsing solar cells. Solar Panel Voltage Converter for IoT DevicesYes we CAN exploit indoor lighting. Travel ChargerFree power in the mountains. Solar Cell Battery Charger/MonitorWith protection against deep discharge. Solar-powered Battery ChargerPIC12C671 avoids overcharging and deep charging. Converters for Photovoltaic PanelsContributed by TME (Transfer MultisortElektronik). Solar Charging RegulatorFor panels up to 53 watts. Solar-Powered ChargerFor lead-acid batteries. CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays. Balcony Power Plant 2.0The latest: solar panels, installation and inverters

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The UT196 True RMS solar multimeter is an ideal tool for solar power system maintenance. This rugged meter is designed for technicians who work in rugged outdoor environments. UT196 can measure up to 1700 V DC and 1500 V AC voltages, and 3000 A AC current with an external current clamp sensor. This solar meter offers IP65 protection and able to withstand 2 m drop as well. The UT196 solar multimeter is designed with 1700 V DC, 1500 Vrms AC overload protection and tested for safe usage in CAT III 1000 V, CAT IV 600 V environments. Features True RMS Measure up to 1700 V DC and 1500 V AC for high voltage applications e.g. solar array, wind IP65 protection CAT III 1000V, CAT IV 600 V Analog bar Frequency response: 45 Hz~1 kHz Low-pass filter function Low impedance mode Built-in flashlight, bright backlight and visual alarm Applications High DC voltage measurement Output voltage and frequency measurement Voltage and frequency measurement Current and frequency measurement Specifications Range UT196 DC voltage (V) 1700 V ±0.2% +5 AC voltage (V) 1500 V ±0.8% +3 Frequency (Hz) 1 MHz ±0.08% +4 Resistance (Ω) 60 MΩ ±0.8% +2 Capacitance (F) 60 mF ±1.9% +5 Power 9 V battery Dimensions 195 x 95 x 58 mm Included UT196 Solar Multimeter Battery Test leads Downloads Datasheet Manual

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As demand for solar panel installation has risen sharply, especially for installations larger than balcony power plants, the order books of solar companies are full. If you ask for a quote today, you may have to wait a while, if your request isn't simply postponed indefinitely. Another consequence of the solar boom is that some companies are charging very high prices for installations. Yet there is an obvious and radical solution to the problem of excessive prices: Do it yourself, as the English say. The price of materials is currently affordable, and it's the ideal time for those who do the work themselves. They couldn't save more. Add to this the satisfaction of doing something useful, both economically and ecologically, and the pleasure of building yourself. In this special issue, you'll find a wide selection of Elektor assemblies, from solar panel controllers to solar water heaters and solar panel orientation systems. The issue also contains practical information on solar panel installation and the technology behind them. Finally, there are a number of articles on the subject of balcony power plants, from how to install them to how to connect them to the Internet... Contents BASICS Dimensioning Photovoltaic Panel ArraysAn introduction to photovoltaic energy and the commonest techniques,followed by simplified calculation models and setup guidelines. Light Sensor TechnologyMeasuring daylight using LEDs. Solar Power Made SimpleSolar charging with and without a controller. Cable Cross-sections and Energy Losses in Solar SystemsKey considerations on the minimum values to respect for electricalcurrent in solar panel cabling. Solar ModulesEverything you always wanted to know about solar panels... Ideal Diode ControllerDiode Circuits with Low Power Dissipation. TIPS Tracking for Solar Modules zBot Solar/Battery Power Supply Solar Cell Array Charger with Regulator Solar Cell Voltage Regulator Solar-Powered Night Light Alternative Solar Battery Charger PROJECTS Energy LoggerMeasuring and Recording Power Consumption. Tiny Solar SupplySunlight In, 3.3 V Out. A Do-It-Yourself DTURead Data from Small Inverters by μC. Solar ChargerPortable energy for people on the move. Solar Thermal Energy RegulatorMaximum power point tracking explored. 2-amp Maximum Power Tracking ChargerSolar Power To The Max. Computer-driven HeliostatFollow the sun or the stars. Garden LightingUsing solar cells. Solar Panel Voltage Converter for IoT DevicesYes we CAN exploit indoor lighting. Travel ChargerFree power in the mountains. Solar Cell Battery Charger/MonitorWith protection against deep discharge. Solar-powered Battery ChargerPIC12C671 avoids overcharging and deep charging. Converters for Photovoltaic PanelsContributed by TME (Transfer MultisortElektronik). Solar Charging RegulatorFor panels up to 53 watts. Solar-Powered ChargerFor lead-acid batteries. CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays. Balcony Power Plant 2.0The latest: solar panels, installation and inverters

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This multi-axis robot perfectly balances power and size. Features Payload: 5 kg Reach: 700 mm Repeatability: 0.1 mm Max Speed 1000 mm/s Applications Machine Tending Bin Picking Mobile platform Lab Automation Robotic Research Durable Collaborative robots for your automation Industrial-grade harmonic drive and servomotors guarantee 24/7 working without stop. Crafted from Carbon fiber, 15 kg weight makes it possible for easier deployment. Flexible deployment with safe feature Hand teaching, lightweight, space-saving and easy to re-deploy to multiple applications without changing your production layout. Perfectly for recurrent tasks. Collision detection is available for all of our cobots. Your safety is always the top priority. Graphical interface for beginner-friendly programming Compatible with various of operation systems, including macOS and Windows. Web-based technology compatible with all major browsers. Drag and drop to create your code in minutes. Powerful and open source SDK at your fingertips Fully functional open-source Python/C++ SDK provides more flexible programming. ROS/ROS2 packages are ready-to-go. Example codes help you to deploy the robotic arm smoothly. Specifications UFactory 850 xArm 5 xArm 6 xArm 7 Payload 5 kg 3 kg 5 kg 3.5 kg Reach 850 mm 700 mm 700 mm 700 mm Degrees of freedom 6 5 6 7 Repeatability ±0.02 mm ±0.1 mm ±0.1 mm ±0.1 mm Maximum Speed 1 m/s 1 m/s 1 m/s 1 m/s Weight (robot arm only) 20 kg 11.2 kg 12.2 kg 13.7 kg Maximum Speed 180°/s 180°/s 180°/s 180°/s Joint 1 ±360° ±360° ±360° ±360° Joint 2 -132°～132° -118°～120° -118°～120° -118°～120° Joint 3 -242°~3.5° -225°~11° -225°~11° ±360° Joint 4 ±360° -97°~180° ±360° -11°～225° Joint 5 -124°~124° ±360° -97°~180° ±360° Joint 6 ±360° ±360° -97°~180° Joint 7 ±360° Hardware xArm Robot specs Ambient Temperature Range 0-50°C Power Consumption Min 8.4 W, Typical 200 W, max 400 W Input Power Supply 24 V DC, 16.5 A Footprint Ø 126 mm Materials Aluminum, Carbon Fiber Base Connector Type M5x5 ISO Class Cleanroom 5 Robot Mounting Any End Effector Communication Protocol Modbus RTU(rs485) End Effector I/O 2x DI/2x DO/2x AI/1x RS485 Communication Mode Ethernet Included 1x xArm 6 robotic arm 1x AC control box 1x Robotic arm power cable 1x Robotic arm end effector adapter cable 1x Robotic arm signal cable 1x Control box power cable 1x Network cable 1x Mounting tool 1x Quick start guide

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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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Features NFC chip material: PET + Etching antenna Chip: NTAG216 (compatible with all NFC phones) Frequency: 13.56 MHz (High Frequency) Reading time: 1 - 2 ms Storage capacity: 888 bytes Read and write times: > 100,000 times Reading distance: 0 - 5 mm Data retention: > 10 years NFC chip size: Diameter 30 mm Non-contact, no friction, the failure rate is small, low maintenance costs Read rate, verification speed, which can effectively save time and improve efficiency Waterproof, dustproof, anti-vibration No power comes with an antenna, embedded encryption control logic, and communication logic circuit Included 1x NFC Stickers (6-color kit)

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The Raspberry Pi Pico 2 W is a microcontroller board based on the RP2350 featuring 2.4 GHz 802.11n wireless LAN and Bluetooth 5.2. It gives you even more flexibility in your IoT or smart product designs and expanding the possibilities for your projects. The RP2350 provides a comprehensive security architecture built around Arm TrustZone for Cortex-M. It incorporates signed boot, 8 KB of antifuse OTP for key storage, SHA-256 acceleration, a hardware TRNG, and fast glitch detectors. The unique dual-core, dual-architecture capability of the RP2350 allows users to choose between a pair of industry-standard Arm Cortex-M33 cores and a pair of open-hardware Hazard3 RISC-V cores. Programmable in C/C++ and Python, and supported by detailed documentation, the Raspberry Pi Pico 2 W is the ideal microcontroller board for both enthusiasts and professional developers. Specifications CPU Dual Arm Cortex-M33 or dual RISC-V Hazard3 processors @ 150 MHz Wireless On-board Infineon CYW43439 single-band 2.4 GHz 802.11n wireless Lan and Bluetooth 5.2 Memory 520 KB on-chip SRAM; 4 MB on-board QSPI flash Interfaces 26 multi-purpose GPIO pins, including 4 that can be used for AD Peripherals 2x UART 2x SPI controllers 2x I²C controllers 24x PWM channels 1x USB 1.1 controller and PHY, with host and device support 12x PIO state machines Input power 1.8-5.5 V DC Dimensions 21 x 51 mm Downloads Datasheet Pinout Schematic

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Soldering station for precision soldering with actively heated soldering tip The AE970D soldering iron station is a 80 W high power tool to heat up to solder fastly. Its wide temperature range of 150-550°C (302-1022°F) could meet all your soldering needs. Thanks to its high performance plug-and-play integrated active tip, AE970D can reach melting point within 9 seconds. Patented close-loop automatic constant temperature control technology can ensure its soldering with high stability, excellent performance and precise accuracy. Features 80 W high power to enable fast heating up Wider temperature range of 150-550°C (302-1022°F) to meet all your soldering needs High performance plug-and-play integrated active tip, can reach melting point within 9 seconds Patented close-loop automatic constant temperature control technology to ensure high stability, excellent performance and precise accuracy Specifications Power 80 W Input voltage 110 VAC / 230 VAC Output voltage 25 VAC Temperature range 150-550°C (302-1022°F) Heating element T80 series integrated active heater Temperature stability ±1°C/±1.8°F (when temperature >200°C/400°F) Tip to ground resistance <2 Ω Tip to ground voltage <2 mV Power cord length 1 m Handle cable length 1.2 m Dimensions 148 x 120 x 85 mm Weight (main unit) 1.33 kg Included Main unit Soldering iron incl. soldering tip T80-D12 Iron stand Brass wool Manual

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FLUX Ador is the world's first color printing laser cutter. Powered by three high-quality, interchangeable modules, Ador enables you to engrave and cut though a wide range of materials while enhancing your projects with a pop of color. New creative potential with Ador Whether you’re an educator, small business, crafter or designer, with Ador, the application boundary is for you to define. Easy to use Place material then autofocus Drag and drop your design Engrave, cut or print Project Completed! Big workspace, big ideas Ador offers a big working space of 430 x 300 mm, with a depth of 30 mm, expanding the horizons of your creativity. Specifications Dimensions 637 x 488 x 226 mm Weight 19 kg Work Area X&Y: 20 W Diode laser: 430 x 300 mm (X & Y varies with different modules)Z: 30 mm (for all modules) & 20 mm (with prism) Camera Preview Area Whole work area Voltage AC 110-240 V Touch Panel Yes, 8 inches (diagonal) Camera 8 MP I/O USB / WiFi Laser Spec W Diode laser Module Laser Moving Speed 0~400 mm/s Laser Cutting Thickness Varies for different materials Software Mode Vector / Graphic (monochrome, gray scale) Operating System Windows / macOS / Linux Software File Type JPG / PNG / SVG / DXF Included FLUX Ador 20 W diode laser module 6x prism lift Power adapter Power cord Hex key Vent Hose Vent hose Duct Clamp Wooden test piece Laser Cutter Lubricant Downloads Firmware

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From basics to flows for sensors, automation, motors, MQTT, and cloud services This book is a learning guide and a reference. Use it to learn Node-RED, Raspberry Pi Pico W, and MicroPython, and add these state-of-the-art tools to your technology toolkit. It will introduce you to virtual machines, Docker, and MySQL in support of IoT projects based on Node-RED and the Raspberry Pi Pico W. This book combines several elements into a platform that powers the development of modern Internet of Things applications. These elements are a flow-based server, a WiFi-enabled microcontroller, a high-level programming language, and a deployment technology. Combining these elements gives you the tools you need to create automation systems at any scale. From home automation to industrial automation, this book will help you get started. Node-RED is an open-source flow-based development tool that makes it easy to wire together devices, APIs, and online services. Drag and drop nodes to create a flowchart that turns on your lights at sunset or sends you an email when a sensor detects movement. Raspberry Pi Pico W is a version of the Raspberry Pi Pico with added 802.11n Wi-Fi capability. It is an ideal device for physical computing tasks and an excellent match to the Node-RED. Quick book facts Project-based learning approach. Assumes no prior knowledge of flow-based programming tools. Learn to use essential infrastructure tools in your projects, such as virtual machines, Docker, MySQL and useful web APIs such as Google Sheets and OpenWeatherMap. Dozens of mini-projects supported by photographs, wiring schematics, and source code. Get these from the book GitHub repository. Step-by-step instructions on everything. All experiments are based on the Raspberry Pi Pico W. A Wi-Fi network is required for all projects. Hardware (including the Raspberry Pi Pico W) is available as a kit. Downloads GitHub

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Build a custom Arduino Uno shield using the the Arduino Uno templates. Each pack contains six Arduino Uno templates. Downloads Gerber files

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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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