LDR Sensor Module The LDR sensor module detects light and measures how bright it is. When there’s light, the output is high, and when there’s no light, it’s low. You can change how sensitive it is using a small dial (potentiometer). This light detection sensor has an M3 mounting hole for easy attachment and comes with an LDR for accurate readings. The LDR module also has a power LED and a status LED to show if it’s working, making it great for checking how bright the surroundings are. Check out our collection of Other Sensors ! Features: Adjustable sensitivity via blue digital potentiometer adjustment Digital output range: 0V to 5V Adjustable trigger level from preset LEDs indicating output and power (Power indicator in red and digital switch output indicator in green) Uses LM393 comparator chip for stability Easy to install with an M3 mounting hole for attachment Suitable for detecting ambient brightness and light intensity Digital output for easy integration with microcontrollers Comes with a power LED and status LED as indicators Applications: Control lights with LDR sensors. Adjust streetlights for energy savings. Trigger alarms in security. Monitor sunlight for plants. Optimize camera settings. Pinout: Pin No Pin Name Description 1 VCC 3.3V to 5V DC power supply 2 GND Ground 3 DO Digital output How to Use: A photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity. Module light conditions or light intensity reach the set threshold, DO port output is high when the external ambient light intensity exceeds a set threshold, the module D0 output is low; Digital output D0 is directly connected to the MCU, and detects high or low TTL, thereby detecting ambient light intensity changes; Digital output module DO can directly drive the relay module, which can be composed of a photoelectric switch; Read our blog explaining how LDR works.

LDR Sensor Module The LDR sensor Module is used to detect the presence of light and measure the intensity of light. The output of the module goes high in the presence of light and it becomes low in the absence of light. The sensitivity of signal detection can be adjusted using the potentiometer. You can adjust the threshold (sensitivity) of the digital output by tuning the onboard variable resistor (potentiometer). Simple usage as it is the digital output, so you will know the light present and decide what to do with it. LDR sensor Module comes with an M3 mounting hole for ease of attaching it to an object. Onboard, it provides an LDR, high sensitivity and commonly being used for light detection. The module comes with a power LED and a status LED as an indicator. LDR Module Photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity. If you want to use the LDR module in your projects, then you will need a few essential components like an Arduino , relays , breadboard and jumper wires . LDR Sensor Module pin diagram Pin No Pin Name Description 1 VCC 3.3V to 5V DC power supply 2 GND Ground 3 DO Digital output How to Use: A photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity. Module light conditions or light intensity reach the set threshold, DO port output high when the external ambient light intensity exceeds a set threshold, the module D0 output low; Digital output D0 is directly connected to the MCU, and detects high or low TTL, thereby detecting ambient light intensity changes; Digital output module DO  can directly drive the relay module, which can be composed of a photoelectric switch;

Led Combo (R-G-Y-B-W) 5mm LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. It looks like a white LED and illuminates blue light. When a light-emitting diode is switched on, electrons are able to recombine with holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the colour of the light (corresponding to the energy of the photon) is determined by the energy bandgap of the semiconductor. It is good quality and durable & small size and super bright LEDs with Low heat dissipation, energy-saving, and a long lifespan. These LEDs are always in demand in the DIY community as well as in industrial applications. Applications: DIY LED projects School science experiments Automobile decorations Electronic and electrical experiments

LED Driver Board for XIAO Supports 5V and 12V LED Strips -Seeed Studio The LED Driver Board for XIAO by Seeed Studio is a versatile and compact solution designed for driving 5V and 12V LED strips, including popular addressable RGB LEDs like NeoPixel WS2812, WS2813, and WS2815. This LED driver board seamlessly integrates with all XIAO boards, providing smart lighting control and automation when paired with XIAO ESP32 Series using WLED and Home Assistant. It offers flexible power supply options, making it ideal for a wide range of lighting projects. Additionally, the board comes with comprehensive protection features, ensuring safe and reliable operation in home automation and creative lighting setups. Features: Wide LED Compatibility: The driver is versatile and can support both 5V/3A and 12V/2A LED strips. It also has integrated power regulation. Compatible with single-color and addressable RGB LEDs, including NeoPixel WS2811, WS2812(B), WS2813, WS2815, SK6812, and other 1-wire protocol LEDs, giving a wide range of lighting options. XIAO Compatibility for Smart Control: Designed to fit all Seeed Studio XIAO boards. When linked with the XIAO ESP32 Series (ESP32-C3/S3/C6), unlock smart features via WLED app support - Control colors, effects, brightness, and create creative animations (XIAO ESP32C3 comes strongly recommended). Home Assistant connection with ESP Home enables remote control, automation, and smart home scenarios. Grove Ecosystem Compatibility: The onboard Grove interface is compatible with over 400 Seeed Studio modules, such as infrared sensors, temperature sensors, accelerometers, and others, allowing you to easily improve lighting interactivity with the surroundings and motion for smarter, more personalized effects. Flexible Power Input: Supports 12V/2A power via a normal DC adapter (EU/US plugs) or direct DC wiring, with a universal 5.5mm x 2.1mm DC Barrel Jack connector. Suitable for temporary and permanent installations. Compact form factor: The space-efficient design enables for inconspicuous installation alongside LED strips or in tight places, making it appropriate for a variety of lighting applications while preserving full functioning. Comprehensive Protection: Overcurrent, overvoltage, overtemperature, and short-circuit protection are integrated to ensure reliable operation and component longevity. Hardware Overview: Applications: Home Lighting & Decoration: RGB strip lights, wall lights, and holiday decorations Educational and Science Experiments: Coding and Microcontroller Education, LED Light Design, Physical Data Visualization Gaming and interactive installations: PC case illumination, around-screen LED effects, interactive LED floor or wall. DIY Projects and Fun Uses: LED name boards, LED clocks, DJ disco lights, RGB mood lighting.

Leju Robot AELOS LITE 19DOF AI Humanoid Robot Kit for Programming & Coding The Leju Robot AELOS LITE 19DOF AI Humanoid Robot Kit is an advanced AI Robot Kit designed for programming and coding enthusiasts. Combining high-performance servo motors with a robust mechanical structure, it enables realistic, human-like movements such as walking, dancing, and executing complex actions. Perfectly suited for STEM education, the robot features a visual programming interface (like Blockly), making coding accessible to beginners while providing depth for advanced learners. As a versatile Humanoid Robot and AI Robot Toy, it serves as an ideal tool for students, teachers, and robotics hobbyists, enhancing learning in classrooms, workshops, or personal projects with engaging hands-on experience. Features: Self-Developed Rudder and Performance Improvement Aelos Lite. The robot is fitted with Leju's high-toughness torque composite material servo motor, which significantly improves its life and motion precision. Free Choice The optional mechanical hand module allows Aelos Lite to grasp freely. Handle Operation for an Excellent Game Experience Comfortable grip, built-in LCD displays the status of the handle. Visual Programming Interface This image displays a visual programming interface, likely used for robotics or similar devices. It shows different sections for coding with blocks, viewing actions, and monitoring machine values. Self-Stabilizing Gait Algorithm Switching between fast and slow steps: The robot can adjust its walking speed. Adaptation to various terrains: It can navigate different types of surfaces. Stunt combination: The robot is capable of performing various combined movements or tricks. Software Introduction The Aelos Lite series of robots is equipped with Scratch visual block programming software, through which users can build blocks to create various functions for Aelos Lite, so as to exercise programming thinking and skills and let their creativity run free. Competitive Events Human robot + high precision servo + built-in sensor; ideal for a wide range of competing scenarios. Stretching Freely and Extremely Flexible Aelos has 19 degrees of freedom and can-do thousands of different movements and tasks, including fast walking, street dancing, and soccer. Its head can spin approximately 160 degrees, and its body language makes it feel quite familiar.

AELOS PRO 19DOF Humanoid Robot AI Kit with Built-in Camera & Sensor The AELOS PRO 19DOF Humanoid Robot AI Kit is a cutting-edge, AI-powered education STEM  kit that will inspire, inform, and amaze you as you embark on the future of interactive AI Learning and Programming Robot. With its 19 degrees of freedom, intelligent sensors, and a high-resolution integrated camera, AELOS PRO is more than just a robot; it's a starting point for learning about robotics, AI, and practical programming. AELOS PRO provides an immersive learning experience by fusing robust hardware with intuitive software and curriculum-ready courseware. Students can observe real-time AI in action as AELOS PRO humanoid robot kit perceives, evaluates, and reacts to its surroundings, whether it be through object recognition, motion control, or autonomous decision-making. This humanoid AI robot is ideal robotics kits for schools, STEM labs, and robotics clubs because it encourages critical thinking and curiosity, which helps young brains acquire 21st-century skills through fun, hands-on experience. Features High-Torque Servo System for Accurate Motion Leju's robot kit high-performance steering gear is the foundation of AELOS PRO's smooth and precise movement. Its strong torque and long-lasting, solid construction guarantee steady, fluid motion and enduring dependability, making it ideal for both competitive and educational settings. Advanced Manipulator for Adaptable Jobs AELOS PRO RC robot is designed to be flexible. It is perfect for investigating delicate and intricate engineering applications because its sophisticated robotic arms can be set up to perform a range of tasks, including grasping, carrying, assembling, and manipulating objects. Intelligent Vision with Integrated High Definition Camera Through the perceptive eyes of AELOS PRO, experience the world like never before. The robot can track objects, identify faces, detect colors, and stream live video thanks to its high-resolution camera and AI-powered vision processing, which allows for real-time, environment-aware decision-making. IntelliSense Ports Allow for Unlimited Expansion Adapt and expand AELOS PRO to your artistic objectives. It supports a large variety of sensors and modules and has more than 14 built-in and external expansion ports, providing countless opportunities for intelligent interaction, control, and perception. Simple Blockly Coding Programming Visually It has never been easier or more enjoyable to learn to code. Blockly, a drag-and-drop visual programming interface that enables users to create intricate functions without requiring sophisticated coding knowledge, is compatible with AELOS PRO humanoid AI robot and is perfect for novices and young students.

LilyPad CR2032 Coin Cell Battery Holder The LilyPad Coin Cell Battery Holder CR2032 is a compact and user-friendly power module designed for wearable and e-textile projects. It securely holds a 20mm coin cell battery and features an integrated slide switch, allowing you to easily power on or off your creation without removing the battery. Made with a durable purple PCB, this module offers a reliable and stylish way to supply power to your LilyPad circuits or other small electronics.Perfect for DIY enthusiasts, fashion tech designers, and students, this battery holder provides four sewing connection points (two positive and two negative) for seamless integration into fabric-based circuits. Its sturdy design prevents accidental disconnection and ensures stable performance, making it an essential component for powering light-up clothing, interactive accessories, and creative electronics projects. Features: Designed to hold a single CR2032 coin cell battery securely. Built-in slide switch for convenient power control. Four sewing tabs (two positive, two negative) for easy stitching into fabric projects. Compact and lightweight design ideal for wearables and e-textiles. Strengthened battery connector prevents accidental pop-out. Durable purple PCB ensures long-lasting reliability. Perfect for powering LilyPad Arduino circuits and small electronic modules.

Linear Actuator Motor A linear actuator motor is a type of electric motor designed to produce linear motion, rather than rotary motion. Linear actuator motors are used in a variety of applications, including industrial automation, robotics, and medical equipment. Linear actuator motors typically consist of a motor, a lead screw or other type of linear drive mechanism, and a linear bearing or guide system. When the motor is activated, it rotates the lead screw or other drive mechanism, which converts the rotary motion of the motor into linear motion. This linear motion can be used to move a load or perform other types of work. Linear actuator motors are used in a wide range of applications, including automation, robotics, medical equipment, and industrial control systems. They are useful for producing precise, controllable linear motion, and can be used as part of a larger control system or as standalone devices. Linear actuator motors are available in a range of sizes and configurations and can be used to produce linear motion over a variety of distances and speeds. They can be powered by a variety of electrical sources, including batteries, AC or DC power supplies, and solar panels. Applications: Automation Robotics Medical equipment Industrial control systems Standalone devices

Linear Bearing LMK12LUU 12mm Square Flange Bushing The Linear Bearing LMK12LUU 12mm Square Flange Bushing is a low-cost linear motion system which equips with the cylindrical shaft. The working load of such bearings is small due to the point contact of the ball and the shaft. The balls can rotate with minimal frictional resistance, thus obtaining high-precision smooth movement. The Bearings gives you very precise, safe and reliable linear motion system. Such linear motion bearings are mostly used in 3D printers and CNC(Computer Numerical Control) machines. Widely used in home appliances, industrial, low noise and high-speed electric motors, construction machinery, automotive components, pumps, and machinery. check out : Linear Bearing LMK12UU 12mm Rod Square Flange Linear Bearing for 3D Printer Applications Replacement of parts of the 3D printer rail unit. Replacement of common machine tool guideway components. Laser (engraving machine) rail set-up and parts replacement Construction and replacement of small planning machine tables, carriers, rails and parts.

Linear Bearing LMK12UU 12mm Rod Square Flange Bearing for 3D Printer It is a linear motion system produced at low cost. It is used for infinite stroke and cylindrical shaft. Because the load ball is in point contact with the shaft, the use load is small. The steel ball rotates with very little frictional resistance, so that it can obtain high-accuracy and movement. Linear Bearing LMK12UU 12mm Square Flange Bushing is a low-cost linear motion system used with the cylindrical shaft for unlimited travel. The working load of such bearings is small due to the point contact of the ball and the shaft. The balls can rotate with minimal frictional resistance, thus obtaining high-precision smooth movement. The universal Ball Bearings is great for you to replace the damaged Ball Bearings in your devices to improve the efficiency and save energy. Widely used in home appliances, industrial, low noise and high-speed electric motors, construction machinery, automotive components, pumps, and machinery. Smooth moving, low friction, high rigidity, and long life. Economical, easy to maintain replace. check out : Linear Bearing LMK12LUU 12mm Square Flange Bushing