The AD584 4-ch Voltage Reference Module is designed to provide stable and accurate reference voltages of 2.5 V, 5 V, 7.5 V, and 10 V. It incorporates the AD584 integrated circuit, known for its high accuracy and stability. Features Multiple Output Voltages: The module can output four different reference voltages (2.5 V, 5 V, 7.5 V, and 10 V) accessible through a single port. Microcontroller-based Switching: An onboard microcontroller facilitates switching between the four voltage outputs, with LED indicators displaying the active selection. User-Friendly Operation: A single button allows for easy cycling through the available reference voltages. Transparent Housing: The module is encased in a transparent housing, offering protection while allowing users to view the internal components. Power Supply Options: It can be powered via a built-in lithium battery (not included) or through a 5 V DC input. A charging indicator provides status updates during charging. Output Interface: Equipped with 4mm banana sockets for secure and reliable connections. Included 1x AD584 4-ch Voltage Reference Module with Housing Downloads Datasheet

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Features Simple slide angle adjustment Camera Module protection 'sandwich' plates Made from crystal clear laser-cut acrylic in the UK 1/4 inch hole for tripod mounting Stable 4-leg base Here you can find the Assembly Instructions.

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This versatile plotter robot arm DIY kit for Arduino is equipped with MG90S metal gear servo motors to ensure precise and stable drawing movements. Features Fully compatible with Arduino IDE, includes complete source code for easy development and customization. Equipped with robust MG90S metal gear servo motors for accuracy and durability. Includes a Bluetooth module enabling wireless operation via a dedicated app. Specially designed robotic arm tip securely holds pens or markers with a diameter of 8-10 mm, ideal for sketches and detailed drawings. Included Arduino-compatible Nano motherboard Nano expansion board Bluetooth module MG90S all-metal gear servo motors Aluminum structural frame Thickened stable base plate Screw and fastening accessories Connecting wires USB data cable

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This programmer is specifically designed for burning bootloaders (without a computer) on Arduino-compatible ATmega328 development boards. Simply plug the programmer into the ICSP interface to re-burn the bootloader. It’s also compatible with new chips, provided the IC is functional. Note: Burning a bootloader erases all previous chip data. Features Working voltage: 3.1-5.3 V Working current: 10 mA Compatible with Arduino Nano based boards (ATmega328) Dimensions: 39.6 x 15.5 x 7.8 mm

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This programmer is specifically designed for burning bootloaders (without a computer) on Arduino-compatible ATmega328P/ATmega328PB development boards. Simply plug the programmer into the ICSP interface to re-burn the bootloader. It’s also compatible with new chips, provided the IC is functional. Note: Burning a bootloader erases all previous chip data. Features Working voltage: 3.1-5.3 V Working current: 10 mA Compatible with Arduino Uno R3 based boards (ATmega328P or ATmega328PB) Dimensions: 39.6 x 15.5 x 7.8 mm

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The DIY Mini Digital Oscilloscope Kit (with shell) is an easy-to-build kit for a tiny digital oscilloscope. Besides the power switch, it has only one other control, a rotary encoder with a built-in pushbutton. The kit's microcontroller comes preprogrammed. The 0.96" OLED display has a resolution of 128 x 64 pixels. The oscilloscope features one channel that can measure signals up to 100 kHz. The maximum input voltage is 30 V, the minimum voltage is 0 V. The kit consists of through-hole components (THT) are surface-mount devices (SMD). Therefore, assembling the kit means soldering SMD parts, which requires some soldering experience. Specifications Vertical range: 0 to 30 V Horizontal range: 100 µs to 500 ms Trigger type: auto, normal and single Trigger edge: rising and falling Trigger level: 0 to 30 V Run/Stop mode Automatic frequency measurement Power: 5 V micro-USB 10 Hz, 5 V sinewave output 9 kHz, 0 to 4.8 V square wave output Display: 0.96-inch OLED screen Dimensions: 57 x 38 x 26 mm Downloads Documentation

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This PCB fixture is a versatile and reliable tool designed for precision soldering and motherboard repairs. Built with high-temperature resistant synthetic stone, this fixture offers exceptional durability and stability. Its anti-corrosion, anti-static, and deformation-resistant properties ensure long-term performance, making it an essential tool for professionals working with delicate electronic components. One of its standout features is the double bearings adjustment clamping system. The dual screws allow for smooth sliding adjustments, providing a secure and stable hold on your PCB. This innovative design ensures that your work remains precise and hassle-free, even during intricate soldering tasks. Additionally, the fixture is equipped with multiple misalignment buckles, offering a variety of card positions to accommodate different shapes and sizes of motherboards. This adaptability makes it perfect for handling diverse repair projects with ease and efficiency. Dimensions: 155 x 80 x 20 mm Weight: 298 g

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This development board (also known as "Cheap Yellow Display") is powered by the ESP-WROOM-32, a dual-core MCU with integrated Wi-Fi and Bluetooth capabilities. It operates at a main frequency of up to 240 MHz, with 520 KB SRAM, 448 KBROM, and a 4 MB Flash memory. The board features a 2.8-inch display with a resolution of 240x320 and resistive touch. Furthermore, the board includes a backlight control circuit, touch control circuit, speaker drive circuit, photosensitive circuit, and RGB-LED control circuit. It also provides a TF card slot, serial interface, DHT11 temperature and humidity sensor interface, and additional IO ports. The module supports development in Arduino IDE, ESP-IDE, MicroPython, and Mixly. Applications Image transmission for Smart Home device Wireless monitoring Smart agriculture QR wireless recognition Wireless positioning system signal And other IoT applications Specifications Microcontroller ESP-WROOM-32 (Dual-core MCU with integrated Wi-Fi and Bluetooth) Frequency Up to 240 MHz (computing power is up to 600 DMIPS) SRAM 520 KB ROM 448 KB Flash 4 MB Operating voltage 5 V Power consumption approx. 115 mA Display 2.8-inch color TFT screen (240x320) Touch Resistive Touch Driver chip ILI9341 Dimensions 50 x 86 mm Weight 50 g Included 1x ESP32 Dev Board with 2.8" Display and acrylic Shell 1x Touch pen 1x Connector cable 1x USB cable Downloads GitHub

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This DIY kit (HU-017A) is a wireless FM radio receiver with a 4-digit 7-segment display. It operates within the global FM receiving frequency band of 87.0-108.0 MHz, making it suitable for use in any country or region. The kit offers two power supply modes, allowing you to use it both at home and outdoors. This DIY electronic product will help you understand circuits and improve your soldering skills. Features 87.0-108.0 MHz FM Radio: Built-in RDA5807 FM data processor with a standard FM receiving frequency band. The FM frequency can be adjusted using the F+ and F- buttons. Adjustable Volume: Two volume adjustment methods – button and potentiometer. There are 15 volume levels. Active & Passive Audio Output: The kit has a built-in 0.5 W power amplifier to drive 8 Ω speakers directly. It also outputs audio signals to headsets or loudspeakers with AUX interfaces, allowing personal listening and sharing of FM audio. Configured with a 25 cm dedicated FM antenna and a (red) 4-digit 7-segment display for real-time display of FM radio frequency. The transparent acrylic shell protects the internal circuit board. It supports dual power supply methods – 5 V USB and 2x 1.5 V (AA) batteries. DIY Hand Soldering: The kit comes with various components that need to be installed manually. It helps exercise and improve soldering skills, making it suitable for electronics hobbyists, beginners, and educational purposes. Specifications Operating voltage DC 3 V/5 V Output impedance 8 Ω Output power 0.5 W Output channel Mono Receiver frequency 87.0 MHz~108.0 MHz Frequency accuracy 0.1 MHz Operating temperature −40°C to +85°C Operating humidity 5% to 95% RH Dimensions 107 x 70 x 23 mm IMPORTANT: Remove the batteries when powering the radio over to USB. Included 1x PCB 1x RDA5807M FM Receiver 1x STC15W404AS MCU 1x IC Socket 1x 74HC595D Register 1x TDA2822M Amplifier 1x IC Socket 1x AMS1117-3.3 V Voltage Converter 18x Metal Film Resistor 1x Potentiometer 4x Ceramic Capacitor 5x Electrolytic Capacitor 4x S8550 Transistor 1x Red LED 1x 4-digit 7-segment Display 1x Toggle Switch 1x SMD Micro USB Socket 1x Radio Antenna 1x AUX Audio Socket 4x Black Button 4x Button Cap 1x 0.5 W/8 Ω Speaker 1x Red/Black Wire 2x Double-sided adhesive 1x AA Battery Box 1x USB cable 6x Acrylic Board 4x Nylon Column Screw 4x M3 Screw 4x M3 Nut 4x M2x22 mm Screw 1x M2x6 mm Screw 5x M2 Nut

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This endoscope camera features an 8 mm micro lens with a 170° viewing angle and 6 adjustable LED lights for clear, high-definition visuals. Its ergonomic handheld design allows one-handed operation, and the 2 m semi-flexible cable easily navigates narrow spaces. With IP67 waterproofing, the camera is ideal for wet environments, while the non-slip matte body ensures comfort and ease of use. It operates without the need for WiFi, phones, or apps, making it a practical tool for industrial tasks like plumbing, auto repair, and home maintenance. Specifications Display 2.4 inch LCD Resolution 1920 x 1080 Lens size 8 mm Focal length 3-10 cm Horizontal viewing angle 170° Image format JPEG Lights 6 LEDs (adjustable) Interface USB-C Battery Built-in 2600 mAh Lithium battery Battery runtime 4-5 hours Cable length 2 m Included Endoscope Camera with 2.4" LCD USB cable Manual

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This rugged, passive aluminum cooling case is made specifically for the Raspberry Pi 5 and offers a sleek design that ensures both durability and effective heat dissipation. The case is exclusively compatible with the Raspberry Pi 5 and provides a passive cooling solution, eliminating the need for a fan while still managing heat efficiently. Features High quality aluminum construction: Made from high quality aluminum, this case is built to last and withstand regular use. Optimized heat dissipation: The passive cooling design uses the aluminum structure to keep your Raspberry Pi 5 cool without the need for a fan. Full port accessibility: Every port on the Raspberry Pi 5 is easily accessible, from the microSD card slot to USB, micro HDMI and GPIO ports. GPIO cable support: A reserved interface for the GPIO cable ensures that you can continue to use this important function without having to remove the case. Convenient power switch: The case has an integrated power switch that allows you to turn your device on and off.

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The ICL8038 signal generator delivers versatile waveforms, including sine, triangle, square, and forward/reverse sawtooth, making it suitable for a wide range of applications. Powered by the ICL8038 chip and high-speed operational amplifiers, it ensures exceptional precision and signal stability. With a frequency range of 5 Hz to 400 kHz, it supports applications from audio to radio frequencies. Its adjustable duty cycle, ranging from 2% to 95%, allows for precise waveform customization to meet various needs. The DIY kit is beginner-friendly, featuring through-hole components for easy assembly. It includes all necessary parts, an acrylic shell, and a detailed manual, providing everything required to build and use the signal generator efficiently. Specifications Frequency range 5 Hz~400 KHz (adjustable) Power supply voltage 12 V~15 V Duty cycle range 2~95% (adjustable) Low distortion sine wave 1% Low temperature drift 50 ppm/°C Output triangular wave linearity 0.1% DC bias range −7.5 V~7.5 V Output amplitude range 0.1 V~11 VPP (working voltage 12 V) Dimensions 89 x 60 x 35 mm Weight 81 g Included PCB incl. all necessary components Acrylic shell Manual

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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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The Mixer Geek Theremin+ is a fun and innovative electronic musical instrument inspired by the classic Theremin. Unlike traditional instruments, the Theremin+ is played without physical contact, using hand movements in the air to control pitch and volume. The Theremin+ offers an exciting and hands-on way to explore music and sound experimentation. Features Ready to use out of the box Equipped with a loudspeaker and full-color screen Intuitive button-based navigation and confirmation Choose from over 70 tones Multiple customizable function settings Displays waveform, time, frequency, volume, and corresponding piano pitch (display can be turned off) Powered via USB-C port; compatible with power banks Compact design with removable telescopic antenna for easy storage Connects to headphones, external speakers, or recording devices Dimensions: 98 x 70 x 18 mm Included 1x Theremin+ Musical Instrument 2x Antennas 1x USB-C cable

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The Mr. Pulsar Violent Turbo Fan X3 Pro delivers powerful airflow with its impressive 140,000 RPM motor, offering exceptional performance in a compact, portable design. Featuring an 8,000 mAh battery for extended wireless operation, adjustable airflow speeds, and weighing just 277 grams, it's perfect for quick tasks like computer cleaning, drying pets, inflating air mattresses, removing dust, or even blowing snow from your car. Specifications Motor speed 140,000 RPM Battery 8,000 mAh Lithium battery Dimensions 160 x 60 x 90 mm Weight 277 g Included 1x Mr. Pulsar Violent Turbo Fan X3 Pro 1x Short nozzle 1x Storage bag 1x USB-C cable

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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. With voice-control functionality, the glowing light beams react to sound and music, changing with the rhythm and melody for a dynamic visual experience. 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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This portable WiFi weather station is the perfect blend of functionality and style, offering real-time updates on temperature, humidity, and time – all at a single glance. Featuring a clear digital display, the station ensures that weather and time data are always easy to read and understand. Its minimalist design integrates seamlessly into any environment, adding a touch of modern sophistication without drawing unnecessary attention. Features Multi-Function Display: Shows weather, atmospheric pressure, min/max temperature, wind speed, city, country/region, date, day of the week, outdoor temperature & humidity – all at a glance. Custom GIF Animations: Upload your own GIFs for a personalized display experience. WiFi Connectivity: Automatically connects to the Internet to retrieve real-time weather and time data. Power Supply: USB-C Durable Plastic Casing Dimensions: 45 x 35 x 40 mm

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The PTS200 is a powerful, ESP32-controlled portable smart soldering iron with an adjustable output power range of 18 to 100 W. Paired with a 100-watt power supply and a 4-ohm soldering tip, this soldering iron eliminates the need for a traditional soldering station, fully meeting the demands of various soldering tasks. It features 4 adjustable operating voltages, allowing it to be configured for different power sources. Features 100 W Power Output: Experience rapid heating with a powerful 100 W output, reaching 450°C (842°F) in just 8 seconds for quick and efficient soldering. Universal Tip Compatibility: Compatible with T12/TS100/TS101 tips, making the PTS200 adaptable to a wide range of soldering tasks. Fast Charging Protocols: Supports PD3.0 and QC2.0/QC3.0, enabling power from fast charging adapters or power banks, ideal for soldering on the go. Automatic Sleep Function: Extends the lifespan of the soldering tips. The superfast wake-up feature ensures the soldering iron is always ready when needed. Ergonomic Design: Crafted with a CNC-machined metal body, the PTS200 offers both ergonomic comfort and reliable heat dissipation. Specifications Output Power 18-100 W Input Voltage (adjustable) • 9 V/2 A• 12 V/1.5 A• 15 V/3 A• 20 V/5 A Temperature Range 50-450°C (122-842°F) Heating Time 8 seconds Temperature Stability ±2% Microcontroller ESP32-S2 Display 0.96" OLED (128 x 64 pixels) Power Supply USB-C Special Features • Automatic sleep• CNC metal shell• Compatible with T12/TS101/TS100/Pinecil soldering tips• 20 V/5 A (100 W maximum power) Included PTS200 Soldering Iron Soldering tip BC2 (4 Ω) Soldering tip K (4 Ω) Soldering tip B2 (4 Ω) Soldering tip I (4 Ω) 100 W power supply (EU) USB-C cable Software Firmware

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