The OWON SPS3081 Fanless Programmable DC Power Supply (120 W) delivers ultra-quiet, high-precision performance with 10 mV/1 mA accuracy and advanced heat dissipation for long-term reliability. Featuring comprehensive protection, a USB interface with SCPI support for remote control, and a 2.8-inch TFT LCD screen, it is the perfect choice for laboratories, electronics testing, and research. Features Fanless design: Ultra-quiet operation, reducing vibration noise and minimizing the potential failure risks associated with traditional cooling fans. Excellent heat dissipation design: Ensures a controlled temperature rise, allowing long-term operation under full load conditions and extending internal component longevity. Lightweight and ultra-thin design. Output accuracy up to 10 mV/1 mA. Supports List waveform editing and output, with four memory shortcut parameters for quick and convenient access. Integrated protection features include overvoltage, overcurrent, overtemperature, and input undervoltage protection for enhanced safety. Built-in discharge circuit prevents residual high voltage risks when the power is turned off. USB communication interface with SCPI protocol support, enabling PC programming and remote control for simplified user management. 2.8-inch TFT LCD screen Specifications Model SPS6051 SPS3081 Rated Output (0°C-40°C) Voltage 0-61 V 0-31 V Current 0-5.1 A 0-8.1 A Power 150 W 120 W Load Regulation Voltage ≤30 mV Current ≤20 mA Power Regulation Voltage ≤30 mV Current ≤20 mA Setting Resolution Voltage 10 mV Current 1 mA Readback Resolution Voltage 10 mV Current 1 mA Seting Accuracy (25°C ±5°C) Voltage ≤0.05% ±20 mV ≤0.1% ±20 mV Current ≤0.05% ±20 mA ≤0.2% ±20 mA Readback Accuracy (25°C ±5°C) Current ≤0.05% ±20 mV ≤0.1% ±20 mV Voltage ≤0.05% ±20 mV ≤0.2% ±20 mA Ripple/Noise Voltage ≤30 mVp-p ≤30 mVp-p Voltage ≤4 mVrms ≤5 mVrms Current ≤10 mAp-p ≤30 mAp-p Output temperature coefficient (0°C-40°C) Voltage 100 ppm/°C Current 200 ppm/°C Readback temperature coefficient Voltage 100 ppm/°C Current 200 ppm/°C Response Time (50-100% rated load) ≤1.0 ms Storage 4 groups of data Working Temperature 0-40°C Display 2.8-inch color LCD display Interface USB Dimensions (W x H x D) 82 x 142 x 226 mm Weight 1.8 kg Included 1x OWON SPS3081 Power Supply 2x Test leads 1x Power cord 1x Manual Downloads Datasheet User Manual Programming Manual PC Software

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The OWON SPS6051 Fanless Programmable DC Power Supply (150 W) delivers ultra-quiet, high-precision performance with 10 mV/1 mA accuracy and advanced heat dissipation for long-term reliability. Featuring comprehensive protection, a USB interface with SCPI support for remote control, and a 2.8-inch TFT LCD screen, it is the perfect choice for laboratories, electronics testing, and research. Features Fanless design: Ultra-quiet operation, reducing vibration noise and minimizing the potential failure risks associated with traditional cooling fans. Excellent heat dissipation design: Ensures a controlled temperature rise, allowing long-term operation under full load conditions and extending internal component longevity. Lightweight and ultra-thin design. Output accuracy up to 10 mV/1 mA. Supports List waveform editing and output, with four memory shortcut parameters for quick and convenient access. Integrated protection features include overvoltage, overcurrent, overtemperature, and input undervoltage protection for enhanced safety. Built-in discharge circuit prevents residual high voltage risks when the power is turned off. USB communication interface with SCPI protocol support, enabling PC programming and remote control for simplified user management. 2.8-inch TFT LCD screen Specifications Model SPS6051 SPS3081 Rated Output (0°C-40°C) Voltage 0-61 V 0-31 V Current 0-5.1 A 0-8.1 A Power 150 W 120 W Load Regulation Voltage ≤30 mV Current ≤20 mA Power Regulation Voltage ≤30 mV Current ≤20 mA Setting Resolution Voltage 10 mV Current 1 mA Readback Resolution Voltage 10 mV Current 1 mA Seting Accuracy (25°C ±5°C) Voltage ≤0.05% ±20 mV ≤0.1% ±20 mV Current ≤0.05% ±20 mA ≤0.2% ±20 mA Readback Accuracy (25°C ±5°C) Current ≤0.05% ±20 mV ≤0.1% ±20 mV Voltage ≤0.05% ±20 mV ≤0.2% ±20 mA Ripple/Noise Voltage ≤30 mVp-p ≤30 mVp-p Voltage ≤4 mVrms ≤5 mVrms Current ≤10 mAp-p ≤30 mAp-p Output temperature coefficient (0°C-40°C) Voltage 100 ppm/°C Current 200 ppm/°C Readback temperature coefficient Voltage 100 ppm/°C Current 200 ppm/°C Response Time (50-100% rated load) ≤1.0 ms Storage 4 groups of data Working Temperature 0-40°C Display 2.8-inch color LCD display Interface USB Dimensions (W x H x D) 82 x 142 x 226 mm Weight 1.8 kg Included 1x OWON SPS6051 Power Supply 2x Test leads 1x Power cord 1x Manual Downloads Datasheet User Manual Programming Manual PC Software

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Comprehensive Book-Hardware Bundle for the RP2040 Microcontroller with over 80 Projects Unlock the potential of modern controller technology with the Raspberry Pi Pico in this bundle. Perfect for both beginners and experienced users, the easy-to-follow guide takes you from the basics of electronics to the complexities of digital signal processing. With the Raspberry Pi Pico, the dedicated hardware kit and MicroPython programming, you will learn the key principles of circuit design, data collection, and processing. Get hands-on with over 80 projects like a stopwatch with an OLED display, a laser distance meter, and a servo-controlled fan. These projects are designed to help you apply what you've learned in real-world scenarios. The book also covers advanced topics like wireless RFID technology, object detection, and sensor integration for robotics. Whether you're looking to build your skills in electronics or dive deeper into embedded systems, this bundle is the perfect resource to help you explore the full potential of the Raspberry Pi Pico. Contents of the Bundle 1x Project Book (273 pages) 1x Raspberry Pi Pico WH 1x Raspberry Pi Pico H 1x Smart Car Kit Electronic Parts 2x Solderless breadboard (400 holes) 1x Solderless breadboard (170 holes) 5x Colorful 5 mm LEDs (green, red, blue, yellow and white) 1x Laser transmitter 1x Passive buzzer 1x Micro USB cable (30 cm) 1x 65 Jumper wires 1x 20 cm male to female Dupont wire 1x Clear case 1x Magnet (diameter: 8 mm, thickness: 5 mm) 1x Rotary potentiometer 10x 2 KΩ resistors 2x M2.5x30 mm copper pillars 10x Phillips pan head screws 10x M2.5 nickel hex nuts 1x 2-inch dual-purpose screwdriver Modules 1x RGB module 1x 9G servo 1x Dual-axis XY joystick module 1x RC522 RFID module 1x 4 Bits digital LED display module 1x Traffic light display module 1x Rotary Encoder module 1x 1602 LCD Display module (Blue) 1x Photoresistor module 1x DC motor with male Dupont wire 1x Fan blade 1x Raindrops module 1x OLED module 1x Membrane switch keyboard 1x Mini magnetic spring module 1x Infrared remote control 1x Infrared receiver module 1x DC stepper motor driver board 1x Button Sensors 1x Vibration sensor 1x Soil moisture sensor 1x Sound sensor 1x Mini PIR motion sensor 1x Temperature & Humidity sensor 1x Flame sensor 2x Crash sensor 2x Tracking sensor 1x Ultrasonic sensor

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The Raspberry Pi USB 3 Hub expands your device connectivity by converting a single USB-A port into four USB 3.0 ports. With an optional external USB-C power input, it can support high-power peripherals, while lower-power peripherals work without additional power. The USB 3 Hub is fully tested for seamless compatibility with all Raspberry Pi products. Features Single Upstream Connection: USB 3.0 Type-A connector with an 8 cm captive cable Four Downstream Ports: USB 3.0 Type-A ports for multiple device connections High-Speed Data Transfer: Supports speeds up to 5 Gbps Compatibility: Works with USB 3.0 Type-A host ports and is backward-compatible with USB 2.0 ports Downloads Datasheet

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The Raspberry Pi AI Camera is a compact camera module based on the Sony IMX500 Intelligent Vision Sensor. The IMX500 combines a 12 MP CMOS image sensor with on-board inferencing acceleration for various common neural network models, allowing users to develop sophisticated vision-based AI applications without requiring a separate accelerator. The AI Camera enhances captured still images or video with tensor metadata, while keeping the Raspberry Pi's processor free for other tasks. Support for tensor metadata in the libcamera and Picamera2 libraries, as well as the rpicam-apps application suite, ensures ease of use for beginners while providing unparalleled power and flexibility for advanced users. The Raspberry Pi AI Camera is compatible with all Raspberry Pi models. Features 12 MP Sony IMX500 Intelligent Vision Sensor Sensor modes: 4056x3040 (@ 10fps), 2028x1520 (@ 30fps) 1.55 x 1.55 µm cell size 78-degree field of view with manually adjustable focus Integrated RP2040 for neural network and firmware management Specifications Sensor Sony IMX500 Resolution 12.3 MP (4056 x 3040 pixels) Sensor size 7.857 mm (type 1/2.3) Pixel size 1.55 x 1.55 μm IR cut filter Integrated Autofocus Manual adjustable focus Focus range 20 cm – ∞ Focal length 4.74 mm Horizontal FOV 66 ±3° Vertical FOV 52.3 ±3° Focal ratio (F-stop) F1.79 Output Image (Bayer RAW10), ISP output (YUV/RGB), ROI, metadata Input tensor maximum size 640 x 640 (H x V) Framerate • 2x2 binned: 2028x1520 10-bit 30fps• Full resolution: 4056x3040 10-bit 10fps Ribbon cable length 20 cm Cable connector 15 x 1 mm FPC or 22 x 0.5 mm FPC Dimensions 25 x 24 x 11.9 mm Downloads Datasheet Documentation

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Raspberry Pi Zero 2 WH is the successor to the breakthrough Raspberry Pi Zero W(H). The board incorporates a quad-core 64-bit Arm Cortex-A53 CPU, clocked at 1 GHz. At its heart is a Raspberry Pi RP3A0 system-in-package (SiP), integrating a Broadcom BCM2710A1 die with 512 MB of LPDDR2 SDRAM. The upgraded processor provides Raspberry Pi Zero 2 WH with 40% more single-threaded performance, and five times more multi-threaded performance, than the original single-core Raspberry Pi Zero. Features 64-bit quad-core processor VideoCore IV GPU 512 MB LPDDR2 DRAM 802.11b/g/n wireless LAN Bluetooth 4.2 / Bluetooth Low Energy (BLE) MicroSD card slot Mini HDMI and USB 2.0 OTG ports Micro USB power With mounted 40-pin header Composite video and reset pins via solder test points CSI camera connector Specifications SoC Broadcom BCM2710A1 CPU 64-bit ARM Cortex-A53 (4x 1 GHz) GPU Broadcom VideoCore VI RAM 512 MB LPDDR2 Wireless LAN 2.4 GHz IEEE 802.11b/g/n Bluetooth Bluetooth 4.2, BLE USB 1x micro USB (for data)1x micro USB (for power supply) GPIO HAT-compatible 40-pin GPIO header Video & Audio 1080P HD video & stereo audio via mini-HDMI connector SD card microSD (for operating system and storage) Power 5 VDC / 2.5 A (supplied via micro USB connector) Dimensions 65 x 30 x 5 mm Raspberry Pi Zero 2 WH is footprint-compatible with earlier Zero models.

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The Raspberry Pi 5 delivers more performance than ever before. Thanks to the faster CPU, GPU and RAM, Raspberry Pi 5 is up to 3x faster than its already fast predecessor. In addition to the speed boost, the Raspberry Pi 5 (which features the new Raspberry Pi RP1 silicon for advanced I/O capabilities) also offers the following features for the first time ever: RTC, an on/off button and a PCIe interface. Features 64-bit quad-core ARM Cortex-A76 processor (2.4 GHz) VideoCore VII GPU (800 MHz) 2 GB of LPDDR4X RAM (4267 MHz) Raspberry Pi silicon RP1 I/O controller chip Real-time clock On/off button PCIe 2.0 UART connector Fan connector Specifications SoC Broadcom BCM2712 CPU ARM Cortex-A76 (ARM v8) 64-bit Clock speed 4x 2.4 GHz GPU VideoCore VII (800 MHz) RAM 2 GB LPDDR4X (4267 MHz) WiFi IEEE 802.11b/g/n/ac (2.4 GHz/5 GHz) Bluetooth Bluetooth 5.0, BLE Ethernet Gigabit Ethernet (with PoE+ support) USB 2x USB-A 3.0 (5 GBit/s)2x USB-A 2.0 PCI Express 1x PCIe 2.0 GPIO Standard 40-pin GPIO header Video 2x micro-HDMI ports (4K60)2x 4-lane MIPI (DSI/CSI) Multimedia H.265 (4K60 decode)OpenGL ES 3.1, Vulkan 1.2 SD card microSD Power 5 V/5 A (via USB-C)Power over Ethernet (PoE+) Raspberry Pi 4 vs Raspberry Pi 5 Raspberry Pi 4 Raspberry Pi 5 SoC Broadcom BCM2711 Broadcom BCM2712 CPU ARM Cortex-A72 (ARM v8) 64-bit ARM Cortex-A76 (ARM v8) 64-bit Clock speed 4x 1.5 GHz 4x 2.4 GHz L2 cache 1 MByte shared 4x 512 KByte L3 cache N/A 2 MByte shared GPU VideoCore VI (500 MHz) VideoCore VII (800 MHz) RAM 2 GB LPDDR4 (3200 MHz) 2 GB LPDDR4X (4267 MHz) WiFi IEEE 802.11b/g/n/ac (2.4 GHz/5 GHz) IEEE 802.11b/g/n/ac (2.4 GHz/5 GHz) Bluetooth Bluetooth 5.0, BLE Bluetooth 5.0, BLE Ethernet Gigabit Ethernet (with PoE support) Gigabit Ethernet (with PoE+ support) USB 2x USB-A 3.02x USB-A 2.0 2x USB-A 3.0 (5 GBit/s)2x USB-A 2.0 I/O controller chip N/A Raspberry Pi Silicon RP1 PCI Express N/A 1x PCIe 2.0 Real Time Clock (RTC) N/A RTC and RTC battery connector On/off button N/A Onboard power button Cooling N/A Fan connector GPIO Standard 40-pin GPIO header Standard 40-pin GPIO header UART via GPIO 1x UART connector SD card microSD slot (DDR50) microSD slot (SDR104) Video 2x micro-HDMI ports (4K60)1x 2-lane MIPI DSI port (display)1x 2-lane MIPI CSI port (camera) 2x micro-HDMI ports (4K60)2x 4-lane MIPI (DSI/CSI) Audio 4-pole 3.5 mm audio jack (stereo audio and composite video) N/A Multimedia H.265 (4K60 decode)H.264 (1080p60 decode, 1080p30 encode)OpenGL ES, 3.0 graphics H.265 (4K60 decode)OpenGL ES 3.1, Vulkan 1.2 Power 5 V/3 A (15 W)Power over Ethernet (PoE) 5 V/5 A (25 W), USB PDPower over Ethernet (PoE+) Raspberry Pi 5 4 GB RAM 8 GB RAM 16 GB RAM Downloads Datasheet Unboxing the Raspberry Pi 5 First Insights

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Over 45 Builds for the Legendary 555 Chip (and the 556, 558) The 555 timer IC, originally introduced by the Signetics Corporation around 1971, is sure to rank high among the most popular analog integrated circuits ever produced. Originally called the IC Time Machine, this chip has been used in many timer-related projects by countless people over decades. This book is all about designing projects based on the 555 timer IC. Over 45 fully tested and documented projects are presented. All projects have been fully tested by the author by constructing them individually on a breadboard. You are not expected to have any programming experiences for constructing or using the projects given in the book. However, it’s definitely useful to have some knowledge of basic electronics and the use of a breadboard for constructing and testing electronic circuits. Some of the projects in the book are: Alternately Flashing Two LEDs Changing LED Flashing Rate Touch Sensor On/Off Switch Switch On/Off Delay Light-Dependent Sound Dark/Light Switch Tone Burst Generator Long Duration Timer Chasing LEDs LED Roulette Game Traffic Lights Continuity Tester Electronic Lock Switch Contact Debouncing Toy Electronic Organ Multiple Sensor Alarm System Metronome Voltage Multipliers Electronic Dice 7-Segment Display Counter Motor Control 7-Segment Display Dice Electronic Siren Various Other Projects The projects given in the book can be modified or expanded by you for your very own applications. Electronic engineering students, people engaged in designing small electronic circuits, and electronic hobbyists should find the projects in the book instructive, fun, interesting, and useful.

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The FNIRSI HRM-10 is a portable, high-precision battery internal resistance and voltage tester. This device offers true four-wire measurement and is designed for both accuracy and ease of use. It automatically measures internal resistance and voltage values simultaneously, displaying the results on its HD color screen. Users have the option to manually adjust voltage and resistance ranges to suit their needs. The device also includes a sorting mode that automatically filters the good and bad batteries based on user-set thresholds. Additionally, it supports the storage of historical data and allows for exporting measurement records in table format. Features High Measurement Accuracy Tabular Data Export Auto-Evaluate Measurement Results 8 Threshold Settings HD Color Screen Folding Stand 1000 mAh Lithium Battery Specifications Voltage Resistance Measuring range 0-100 V (DC) 0-200 Ω Accuracy ±0.5% ±0.5% Gear Automatic, 1 V, 10 V, 100 V Automatic, 20 mΩ, 200 mΩ, 2 Ω, 20 Ω, 200 Ω Instrument test signal frequency 1 Khz (AC) Rechargeable USB-C (5 V/1 A) Built-in battery 1000 mAh lithium battery User calibration Yes Sorting mode Yes History record Yes Recorded data export Yes Working environment –10°C to +45°C, relative humidity <80% Storage environment –20°C to +80°C, relative humidity <80% Dimensions 158.7 x 80.5 x 28.4 mm Weight 225 g Included 1x FNIRSI HRM-10 Internal Resistance Tester 1x Clip Test Line 1x USB-C data cable 1x Manual Downloads Manual Firmware V0.3

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The Elektor Quasi-Analog Clockwork (Dimensions: 160 x 245 mm) is a digital clock with an analog look and feel. The clock consists of 144 3-mm LEDs in a circle, indicating 12 hours with a 5-minute resolution. 11 standard logic ICs are used. All components in the kit are through hole. The circuit uses standard HC-logic and still one 4000-logic IC (CD4060), a 32.768 kHz quarts reference clock and a 5 V power supply. Any small 5 VDC adapter (not included) can be connected via a small screw-terminal block on the board. The quasi-analogue clockwork uses 144 LEDs (light emitting diodes) to indicate the time on a round, quasi-analogue dial with a diameter of about 143 mm. One of twelve green LEDs lights at maximum intensity to mark the hours, while the other eleven are dimmed. Between two green LEDs sit 11 red LEDs, each of which represents a period of five minutes. In this way, the time is indicated with an accuracy of five minutes. This would seem to be enough in view of the mostly decorative function of the present clockwork. Construction of the clock is fairly easy as all components are through hole. A detailed description of how to build the Quasi-Analog Clockwork can be found in the manual of this kit. It can be downloaded here. Please read the manual before heating up the soldering iron! Specifications Time display 12 hours in a circle Display 144 LEDs LED circle 132 red LEDs, 12 green LEDs Resolution display 5 minutes Seconds indication 1 LED in center of circle, blinking at 0.5 Hz Technology 10 HC-logic series IC’s, 1x 4000-logic series IC Reference signal 32 kHz quartz oscillator (adjustable) Set clock 1 push button, 5 minutes step Power supply 5 V (Power Supply not included) Dimensions 160 x 245 mm Included Elektor PCB 240118-1 All Components Wooden Stand Bill of Materials Resistors R1, R22, R24 = 2.2 kΩ R2 = 390 kΩ R3, R5, R6, R7 = 82 kΩ R4 = 1 kΩ R8-R19 = 8.2 kΩ R20 = 20 MΩ R21 = 330 kΩ R23 = 560 Ω R25 = 470 Ω R26 = 100 kΩ Capacitors C1-C4, C8-C18 = 100 nF, 50 V C5 =22 pF, 50 V C6 = 10 pF, 50 V C7 = 3-10 pF trimmer Semiconductors D1, D13, D25, D37, D49, D61, D73. D85, D97, D109, D121, D133 = LED, green, 3 mm D2-D12, D14-D24, D26-D36, D38-D48, D50-D60, D62-D72, D74-D84, D86-D96, D98-D108, D110-D120, D122-D132, D134-D144, D162-D163 = LED, red, 3 mm D145-D156 = 1N4148 DO-35 D164 = 1N4001 DO-41 T1, T2 = BC547B IC1 = CD4060, DIP-16 IC2 = 74HC21, DIP-14 IC3, IC4 = 74HC132, DIP-14 IC5, IC6 = 74HC4024, DIP-14 IC7, IC8, IC9, IC10 = 74HC4051, DIP-16 IC11 = 7 Miscellaneous K1 = 2-way PCB terminal block, 3.5 mm grid S1 = 6 mm tactile pushbutton X1 = 32.768 kHz crystal

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This Mini Radar Robot is an exciting, programmable DIY kit that combines creativity, technology, and hands-on learning. The kit is perfect for tech enthusiasts, makers, and students eager to explore robotics and programming with Arduino or ESP8266. Equipped with a 2.8" TFT screen, it offers real-time visual feedback by detecting objects with its ultrasonic sensors. Targets within 1 meter are shown as red dots, while objects up to 4.5 m are displayed in digital form on the screen. Specifications Main Control Unit ESP8266 microcontroller + expansion board Material Constructed from high-quality acrylic sheet, ensuring durability and a sleek, modern look Operating Voltage 5 V/2 A Operating Temperature −40 to 85°C Dimensions 145 x 95 x 90 mm Installation No soldering and programming required Included 1x Servo motor 1x Ultrasonic transducer module 1x Microcontroller board 1x 2.8-inch display module 1x USB power supply 1x USB cable Acrylic mechanical elements All necessary cables, screws, nuts, and spacers

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This Electronic Component Storage Box with 128 compartments is an essential tool for anyone handling small electronic components, particularly SMDs. It provides a practical, well-organized solution for storing a wide array of miniature parts like resistors, capacitors, diodes, and transistors. Each component can be stored in its own dedicated space, ensuring that the specific part you need for any project is always easy to locate. Whether you're a professional electronics engineer, a maker or a DIY enthusiast, this storage box offers the perfect blend of functionality and convenience. Its design helps eliminate clutter, optimize component management and keep your work environment tidy so you can focus on what really matters: building and troubleshooting electronic circuits. Dimensions of each compartment (L x W x H): 22 x 15 x 16 mm Dimensions of the box (L x W x H): 280 x 215 x 45 mm Included 1x Component Storage Box (incl. 128 compartments with lids and foam) 3x Spare lids 2x Sheets of blank labels 2x Box labels

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