DSO138 2.4-inch TFT Digital Oscilloscope Kit The DSO138 digital oscilloscope kit is a DIY portable oscillator kit integrated with an ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display screen, that can be used as the ARM test development board. This DSO138 Oscilloscope Kit features automatic, regular, and one-shot modes, easy to capture the moment waveform. It's easy and reliable for circuit operation. This digital Oscillator kit can display frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values. This boost converter is a great match for the DSO138 oscilloscope kit. It can be connected directly to the DSO138 motherboard(not included). Features: This DSO138 oscilloscope uses an ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display screen. Adjustable vertical displacement, and with instructions. It can be a secondary development based on this kit, like it can be changed to a Millivoltmeter, or data logger. Comes 1Hz /3.3V square wave test signal source. Available rising or falling edge trigger. With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values. With automatic, regular, and one-shot modes, easy to capture the moment waveform. Observable previous trigger waveform (negative delay). Can freeze at any time waveform display (the HOLD function). Also, check the Acrylic Case Shell for DIY DSO138 Oscillator Kit specially designed DIY acrylic case for this oscilloscope. Applications: Designed for circuit operation. Suitable for frequency analysis tasks. Ideal for signal analysis and troubleshooting with automatic, regular, and one-shot modes. Easy to capture moment waveforms. Useful for learning about waveforms and electronic signals. Can be used as an ARM test development board. With the boost converter, it can be transformed into a portable oscillator.

Dual Monster Moto Shield The Motor Driver Shield Monster Moto has been upgraded to the Dual Monster Moto Shield VNH3ASP30 DC Motor Driver 2x14A (Peak 30A). This new version features a pair of VNH3ASP30 full-bridge motor drivers, replacing the previous L298 H-bridge. The support circuitry has also been improved to allow for the driving of high-current motors . To make it easy to connect larger gauge wires, the VIN and motor out are now pitched for 5mm screw terminals (not included). The direction of each motor is controlled by INA and INB, while the PWM pins turn the motors on or off. The VNH3ASP30 is ideal for a variety of automotive applications and includes a dual monolithic high-side driver and two low-side switches. The high-side driver switch utilizes STMicroelectronics' VIPower M0 technology to integrate a Power MOSFET with intelligent signal/protection circuitry on the same die. Furthermore, the current sense (CS) pins on the VNH3ASP30 will output around 0.13 volts per amp of output current. All these features make the Dual Monster Moto Shield VNH3ASP30 DC Motor Driver 2x14A (Peak 30A) a powerful and versatile motor driver shield.

Dual Shaft NEMA 34 CNC Stepper Motor 34HS46-5004D (8.5NM-5A) This is Dual Shaft NEMA 34 CNC Stepper Motor, You've come to the right place if you're looking to build a large CNC Mill, CNC Lathe, or CNC Router, among other things. This NEMA 34HS46-5004D (8.5NM-5A) Dual shaft Stepper Motor is the ideal choice for you. So the 8.5N.m torque provided by this monster NEMA stepper motor is the most appealing feature. This motor responds quickly to stepper motor driver starting, stopping, and reversing pulses. At 5A of current per phase, it produces 8.5N.m of torque. They can be used in situations requiring high torque at high speeds. A full rotation is divided into a number of equal steps by the stepper motor. As a result, as long as the motor is carefully sized for the application in terms of torque and speed, the motor's position can be commanded to move and hold at one of these steps. When it comes to larger machines that require high torques, this NEMA 34 Stepper Motor is a beast. These are custom-made to withstand the high torque demands of large CNC machines. The NEMA 34HS46-5004D (8.5NM-5A) Dual shaft Stepper Motor is a brushless dc motor with Open Loop Control. This shaft type is useful for providing stability during high-power operation. Features: Supreme finish Smooth surface Long-lasting life Low cost for control achieved High torque at startup and low speeds Ruggedness Simplicity of construction Can operate in an open-loop control system Low maintenance Less likely to stall or slip

E88 EVO Brushless Motor Drone Kit with 4K UHD Camera and Intelligent Flight Modes The Advanced Brushless Motor Drone with 4K UHD Camera, 5G Wi-Fi, Smart Obstacle Avoidance, Long-Range Control, and Intelligent Flight Modes is designed for outdoor exploration and vlogging enthusiasts. This state-of-the-art drone combines cutting-edge technology with user-friendly features to offer an exceptional flying experience. Capture breathtaking photos and videos with the 4K UHD camera, experience stable flight with the brushless motor, and enjoy intelligent flight modes for seamless control and endless adventure. Perfect for: Vloggers, adventure seekers, and drone enthusiasts who need a reliable, easy-to-use drone with advanced features for capturing stunning content. Build, customize, and fly with the DM002 Drone Kit ! Features 4K UHD Camera with Real-Time Transmission: Capture high-quality photos and videos with instant sharing via Wi-Fi. Adjustable Camera Angle: Remote-controlled 90° camera angle for versatile shooting. Advanced Brushless Motor: Longer lifespan, reduced power consumption, and better wind resistance for stable flight. Optical Flow Positioning: Ensures steady hovering for clear and stable images. Intelligent Flight Modes: Includes One-key Takeoff/Landing, Headless Mode, and Altitude Hold, plus 3-speed modes. 360° Flip & Emergency Stop: Fun 360° flips with a safety emergency stop feature. Beyond-Range Alerts: Stay informed with alerts when the drone exceeds 295-328 feet for added control. Long Flight Times & Safety: Extended battery life and safety features like Beyond-Range Alerts and altitude hold. Also check out E88 Pro Drone with 1080p HD Dual Cam Module Why Choose E88 EVO Drone? Durable Brushless Motors: Ensures long life, power efficiency, and stable performance. Smooth Flight Control: Features altitude hold and optical flow for steady hovering. 4K UHD Camera: Capture sharp aerial photos and videos with real-time WiFi FPV. Intelligent Flight Modes: Includes one-key takeoff/landing, headless mode, and 360° flips. Strong Wind Resistance: Maintains stability even in breezy conditions. Beginner-Friendly Design: Easy to operate yet powerful enough for enthusiasts. Applications Aerial Photography Travel Vlogging Hobby Flying Learning & Practice Event Coverage Safety Tips: Fly in open areas away from crowds, trees, and buildings. Ensure both drone and controller batteries are fully charged before flight. Avoid flying in windy or rainy conditions for stable performance. Always maintain a clear line of sight with the drone. Use propeller guards to protect from accidental collisions. Follow local drone flying regulations and altitude limits. Handle the drone carefully—motors and propellers may get hot after flight. Battery Charging Instructions Use the official charging cable supplied with the drone. Do not overcharge; disconnect once the LED indicates a full charge. Allow the battery to cool before recharging after use. Charge on a flat, non-flammable surface away from direct sunlight. Never use damaged or swollen batteries. Store batteries in a cool, dry place when not in use.

E99 Pro Foldable Brushless Motor Drone Kit with Camera The E99 Pro Foldable Drone with a Camera and Brushless Motor offers a seamless flying experience with its advanced features. Capture stunning HD footage from the sky and enjoy long battery life for extended flights. Control the drone effortlessly via the app and perform impressive for dynamic shots. Its foldable design makes it portable, while the air pressure-fixed high feature ensures stable flight at a consistent altitude. Perfect for both beginners and seasoned drone enthusiasts! Shop the E88 Pro Dual Camera Drone at Best Price! Also check out the best collection of DIY Drone Kits . Features HD Camera: Capture stunning, high-definition footage. Long Battery Life: Enjoy extended use for longer flights. APP Control: Convenient control via a smartphone app. Folding Body: Compact design for easy storage and portability. Air Pressure Fixed High: Maintain stable altitude with air pressure control.

E99 PRO Foldable Drone with WiFi FPV HD Camera The E99 PRO Drone is a foldable quadcopter equipped with a WiFi FPV HD camera capable of capturing stunning resolution footage. Its compact, portable design makes it perfect for travel and easy to carry anywhere. The FPV (First Person View) feature allows real-time video transmission to your device, giving you a live view of what the drone sees as it flies. This versatile drone is ideal for aerial photography and videography enthusiasts, combining convenience and high performance for capturing breathtaking moments from the sky. Also, you can check E88 Pro Foldable Drone with Dual Camera

The EasyMech Set of M3 x 12mm Socket Bolt and Nut Set is a high-precision fastening solution designed for mechanical, automotive, and DIY applications. Crafted from premium-grade steel, these socket head cap screws and matching hex nuts offer exceptional strength, corrosion resistance, and long-term durability. The set is ideal for use in robotics, machinery assembly, electronic enclosures, and structural framing where secure and reliable fastening is essential. Each bolt features a socket (hex) drive design, allowing for efficient tightening with standard hex keys, ensuring a clean and flush finish. The M3 x 12mm specification provides the perfect balance of compact size and robust holding power, making this set suitable for tight spaces without compromising on performance. The included nuts are precision-machined to ensure a snug fit and prevent loosening under vibration or dynamic loads. This comprehensive set comes neatly organized, offering convenience and ease of use for engineers, technicians, and hobbyists alike. Whether you're building a robotic prototype, assembling industrial equipment, or working on a custom fabrication project, the EasyMech bolt and nut set delivers consistent quality and reliable performance every time.

Elecrow - Crowbits-Creator Kit Based on Arduino, 12-in-1 STEM Toy for Kids Crowbits Creator Kit Based on Arduino is a comprehensive learning tool designed to spark creativity and innovation in children. Combining graphical programming, LEGO compatibility, and plug-and-play functionality, it provides a hands-on introduction to electronics and coding. Kids can easily connect magnetic modules to create fun, interactive projects - from simple circuits to smart inventions - without needing prior experience. Built with certified ABS material and rounded edges for safety, the Creator Kit ensures a durable and child-friendly learning experience. Whether children are experimenting with Arduino programming, designing interactive games, or exploring STEM concepts, this kit offers endless possibilities for discovery, problem-solving, and creativity - making it the perfect choice for young inventors and future engineers. Features: Easy to use, plug and play Various tutorial guides Compatible with Lego blocks Strong expansibility, more attractive Graphical programming

Elecrow - Crowbits-Master Kit with 3 fully functional products, STEM Programming Educational Building Crowbits Master Kit is the ultimate STEM learning kit designed for creators, innovators, and programming enthusiasts. Featuring three exciting applications—radar, mobile phone, and game console - it enables users to build and program interactive projects with ease. Its graphical programming interface allows beginners and advanced learners alike to explore coding concepts in a fun, hands-on way. Built with safety and durability in mind, the Crowbits Master Kit uses certified ABS materials and a user-friendly design suitable for all ages. With LEGO compatibility, it encourages limitless creativity and experimentation, making it an ideal tool for classrooms, STEM labs, and DIY learning environments. Whether for education or hobby projects, the Crowbits Master Kit brings imagination and technology together seamlessly. Features: Easy to use, plug and play Various tutorial guides Compatible with Lego blocks Strong expansibility, more attractive Graphical programming

Elecrow - CrowPi2 - All-in-One Raspberry Pi STEM Laptop, FCC/CE Certified, Space Grey, English Keyboard, EU Plug, Basic Kit (No Raspberry Pi) CrowPi2 is the perfect solution for tech enthusiasts, educators, and learners of all ages. It is equipped with an 11.6-inch screen, wireless keyboard, one-step Raspberry Pi installation, self-developed software, and 22 sensors. Made with environmentally friendly materials, CrowPi2 ensures durability and portability. Its self-developed software provides a unique learning experience in Scratch, Python, AI, and Minecraft. The inclusion of 22 sensors allows for versatile usage, from learning hardware electronics to programming various projects. CrowPi2 is designed for ease of use and maintenance, featuring offline account management for convenient learning progress tracking. It measures 11.6 inches and is suitable for learners of all ages. What Else Can CrowPi2 Do? Features: 11.6-inch 1920*1080 IPS screen Sleek body made out of environmentally-friendly material, portable for on-the-go use The wireless keyboard detaches from the body or stays connected via a magnet Convert between playing and learning in the second Get started via the one-step installation of Raspberry Pi 4B 2-MP camera, microphone, and stereo output built-in Switch between projects using one button and get creative using Raspberry PI GPIO pins, all of which connect to the onboard sensors or function as independent outputs The All-in-one board includes all necessary sensors for learning hardware and software Self-developed software for learning Scratch, Python, AI, and Minecraft step-by-step via an engaging dialogue teaching mode Offline account management for saving learning progress and achievements and conveniently continuing education