12 Volt Piezo Buzzer Plate (25mm)

SmartElex LHI778 PIR Motion Sensor Module The SmartElex LHI778 PIR Motion Sensor Module is a passive infrared motion detection solution designed to sense human movement by detecting changes in infrared radiation. It helps solve the problem of automatic motion detection without continuous monitoring, making systems more energy efficient and responsive. This module is suitable for students, makers, engineers, educators, and startups working on electronics projects that require reliable motion sensing for control, security, or automation purposes. This PIR motion sensor module is widely used in robotics, IoT devices, security systems, and home or industrial automation projects where movement detection is required. It can be easily interfaced with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick integration into prototypes and functional systems. The simple interface and consistent performance make it ideal for applications like motion-activated lighting, intrusion detection, smart alarms, and interactive electronic projects. Features: Passive infrared (PIR) sensor for reliable human motion detection Detects movement by sensing changes in infrared radiation Low power operation suitable for battery-powered projects Digital output for easy interfacing with microcontrollers Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Ideal for security systems, automation, and motion-activated applications

Pludo Clap Racer DIY Car Kit for Kids 8–11 | Grade 3–5 Voice-Controlled Robotic Car Fuel your child’s curiosity and creativity with the Pludo Clap Racer DIY Car kit designed for kids aged 8–11 (Grade 3–5). This hands-on kit lets children build their own working voice-controlled car, learning basic electronics and engineering concepts while having fun. The car operates using a sound sensor that detects claps or loud noises. When sound is detected, the circuit activates the motor, allowing the car to move for a few seconds. This demonstrates how sound signals can control motion, making learning practical and engaging. Assembling the car encourages problem-solving, critical thinking, and fine motor skills, making science exciting and interactive. It’s not just a project - it’s an engaging Voice-Controlled toy Car that brings learning to life. Perfect for home or classroom use, this kit is part of a collection of activity kits and also doubles as one of the most fun science toys for kids. It appeals to curious minds who enjoy smart toys for kids that combine creativity, STEM learning, and interactive play. What Your Child Will Learn Learn how sound waves and sensors interact to control movement. Understand basic electronics and mechanical motion through guided experimentation. Strengthen problem-solving and logical reasoning skills while assembling the car. Boost fine motor coordination and focus by connecting real working components. Build confidence, curiosity, and creativity through self-driven discovery. Ideal for home learning, classroom STEM sessions, or science fairs. Educational Outcomes Sound & Motion Integration: Explore how sound energy can be used to power and control machines. Electronics & Circuits: Learn how simple components like sensors, switches, and motors interact. Mechanical Principles: Understand how gears, wheels, and motion combine in robotics. Critical Thinking: Improve observation, troubleshooting, and logical reasoning skills. STEM Confidence: Build a strong foundation in science and technology while having fun creating. 💡 Did You Know? The same sound-sensing technology used in your child’s car is similar to what’s used in voice assistants and smart devices today! Features DIY Car Kit: Kids assemble their own working voice-controlled car, making learning interactive and rewarding. Voice-Controlled Fun: Introduces basic electronics and mechanics through hands-on play. Enhances Critical Skills: Encourages creativity, problem-solving, and fine motor skill development through assembly. Safe & Durable Materials: Made with high-quality, non-toxic components for safe and long-lasting use. Ideal for Home or Classroom: Perfect for guided STEM lessons or individual projects at home or school. Perfect Gift for Kids: A thoughtful, educational present for birthdays, holidays, or science fairs, combining fun, creativity, and learning in one kit.

BNO085 9-DOF Orientation IMU Sensor Fusion Nano Breakout Board The BNO085 9-DOF Orientation IMU Sensor Fusion Nano Breakout Board is a powerful and compact motion-sensing solution designed for precise orientation and movement tracking. This BNO085 IMU Sensor combines a 3-axis accelerometer, gyroscope, and magnetometer with an advanced onboard sensor fusion engine that processes raw data into accurate orientation outputs in real time. By handling sensor fusion internally, it reduces processing load on the host microcontroller while delivering reliable heading, rotation, and motion data. With support for I2C and SPI interfaces, the board integrates easily into robotics, VR/AR devices, drones, and IoT systems that demand responsive and accurate motion feedback. Features: Advanced Sensor Fusion: 9-axis integration provides exact data outputs such as acceleration, angular velocity, and magnetic field strength. Low Power use: The ARM Cortex M0+ processor has been optimized for efficient energy use in portable devices. Versatile Compatibility: Backward compatible with BNO080, providing increased dependability through SPI compatibility fixes. Comprehensive Data Reporting: Supports a wide range of calibrated, uncalibrated, and raw data reporting. Enhanced Detection and Classification: Includes stability detection, motion detection, activity classification, and unique AR/VR rotation vectors. Developer-Friendly Interface: I2C interface allows for easy integration with numerous device designs.

7Semi BMP585 I2C Pressure Sensor Breakout Module The 7Semi BMP585 I2C Pressure Sensor Breakout Module is a high-precision sensor designed to measure atmospheric pressure with exceptional accuracy, covering a range of 300–1250 hPa. This BMP585 Pressure Sensor combines low power consumption with compact design, making it perfect for mobile devices, battery-powered systems, and IoT projects. With both I2C and SPI interface support, it can be easily integrated into various electronics projects, enabling applications such as altimetry, weather monitoring, indoor navigation, and environmental sensing. Its reliable performance ensures accurate readings in real-time, making it an essential component for makers and engineers seeking precise pressure measurement. Features: Exceptional pressure sensing resolution at 1/64 Pa and accuracy of ±0.5 hPa provide highly precise data. Wide Pressure and Temperature Range: Measures pressure from 30 to 125 kPa and temperature from -40°C to 85°C, ensuring versatility in a variety of applications. Flexible Data Communication: Compatible with both I2C (up to 1MHz) and SPI (up to 12MHz) protocols, allowing enabling easy integration into a variety of systems. Programmable features include variable oversampling, a FIFO buffer (stores up to 32 samples), low-pass filtering, and 6 bytes of user-programmable non-volatile memory. Energy-Efficient Operation: Provides five operational modes with minimal power usage (1.5µA in Deep Standby and 260µA peak during measurements). Compact Design: A small breakout board with pin spacing of 0.1" allows for simple soldering and connecting.

7Semi MCP4728 Quad DAC Module The 7Semi MCP4728 Quad DAC Module is a compact and reliable DAC module designed to convert digital signals into precise analog voltage outputs. Based on the MCP4728 IC, this digital-to-analog converter breakout board allows users to generate up to four independent analog outputs using simple I²C communication, making it an efficient solution for applications where microcontrollers lack sufficient analog output pins or require higher accuracy. This module offers easy integration with popular microcontrollers, stable performance, and flexible voltage output control, making it ideal for signal generation, sensor simulation, audio control, and calibration tasks. With its user-friendly design and dependable operation, it is well suited for students learning embedded systems, hobbyists building DIY electronics, and professionals developing prototypes or compact analog control systems. Features: Powered by the Microchip MCP4728 Quad DAC IC 12-bit resolution on all four DAC output channels (A–D) Onboard non-volatile EEPROM retains DAC settings after power-off I²C interface with Fast Mode support up to 400 kHz Low-power operation, ideal for battery-powered projects Compact 7Semi breakout with clearly labeled pinouts Supports LDAC and RDY pins for real-time DAC updates and monitoring Applications: Signal generation (sine, square, and triangle waveforms) Audio voltage control for synthesizers and mixers Programmable and adjustable reference voltage sources Lab instruments, testing, and control systems Industrial automation and process control applications Multi-channel analog and neural interface testing

7Semi SGP40 VOC Sensor Breakout for Indoor Air Quality 2.54mm Pitch (ES-12201) The 7Semi SGP40 VOC Sensor Breakout for Indoor Air Quality (ES-12201) is a compact sensor module designed to monitor indoor air quality by detecting volatile organic compounds (VOCs). It uses the reliable Sensirion SGP40 sensor, which helps track changes in air quality and provides useful data for healthier indoor environments. This breakout board features a standard I2C interface and 2.54 mm pitch pins, making it easy to connect with popular microcontrollers like Arduino, ESP32, and Raspberry Pi. Operating at low power and designed for simple integration, it is ideal for air quality monitors, smart home devices, and indoor environmental sensing projects. Features: Uses the Sensirion SGP40 sensor for reliable VOC detection Measures volatile organic compounds (VOCs) to assess indoor air quality I2C digital interface for easy connection with microcontrollers Standard 2.54 mm pitch pins for breadboard and prototyping use Low-power operation suitable for battery-powered and IoT projects Works with Arduino, ESP32, Raspberry Pi, and other development boards

7Semi SGP41 VOC Sensor Breakout Board for Indoor Air Quality Monitoring The 7Semi SGP41 VOC Sensor Breakout Board is a compact and reliable solution for monitoring indoor air quality with high precision. Built around Sensirion’s advanced SGP41 sensing technology, this VOC Sensor accurately detects volatile organic compounds, helping assess air freshness and pollution levels in real time. Operating at an exact 3.3V and communicating via an I2C interface, it integrates smoothly with popular microcontrollers and development boards. The onboard Qwiic connector simplifies wiring, making this air quality VOC sensor ideal for applications such as air purifiers, HVAC systems, smart buildings, and long-term environmental monitoring where accuracy and stability matter. Leverage the power of the SGP41 to create innovative air quality solutions. Whether you're developing air purifiers, ventilation systems, or environmental monitoring devices, this sensor breakout is your essential component. Features: Sensirion SGP40 Sensor: Provides accurate VOC and NOx detection for better air quality assessments. The Digital I2C Interface simplifies communication and integration with your system. Robust Construction: Designed to endure real-world situations while maintaining long-term stability. Compact design is ideal for applications that require limited space. Easy integration: Solderable headers allow for a simple connection.

7Semi Vikram-1101 DRV8837 11V DC Motor Driver Breakout The 7Semi Vikram-1101 brings reliable motor control to compact robotics and automation builds, thanks to its efficient DRV8837 driver and wide 1.8V–11V motor voltage support. Designed for smooth brushed DC motor management, it features a stable 1A continuous output and a powerful 3A peak capability, making it ideal for hobby projects, mechatronics, and lightweight robotics systems. With PWM support and simple H-bridge control, achieving variable speed and direction becomes effortless. Engineers and makers appreciate its built-in safeguards, including thermal shutdown, undervoltage lockout, and overcurrent protection ensuring long-term durability even in demanding environments. The Vikram-1101 also offers resistor-set current limiting, eliminating the need for complex setups. Whether you're designing compact robots, automation rigs, or DIY motorized mechanisms, this versatile DC motor driver delivers dependable performance with ease. Features: Supports a motor power voltage range of 1.8V to 11V, making it suitable for a wide variety of small robotics and mechatronics projects. Provides 1A continuous output and 3A peak current, ensuring stable handling of brushed DC motors. Accepts up to 5.5V logic levels on IN pins, allowing easy interfacing with microcontrollers. Enables smooth motor operation through PWM-based speed control for precise performance tuning. Built with current limiting/regulation that works without requiring an inline sense resistor. Equipped with essential protection features including undervoltage lockout, overcurrent protection, and thermal shutdown.

SmartElex Micro ISM330DHCX 6DoF IMU Sensor The SmartElex Micro ISM330DHCX 6DoF IMU Sensor is a compact motion-sensing module that combines an accelerometer and gyroscope to measure movement, orientation, and rotation. It helps users track motion data accurately in three-dimensional space, making it useful for students, hobbyists, engineers, and educators working on robotics, automation, and motion-based electronics. This IMU breakout board simplifies motion tracking in projects where stability, responsiveness, and precision are important, without requiring complex circuit design or calibration setups. This 6DoF IMU sensor is commonly used in self-balancing robots, gesture-controlled systems, IoT wearables, drones, and embedded automation projects that rely on movement or orientation feedback. It integrates smoothly with popular development platforms like Arduino, Raspberry Pi, and ESP32, making setup and data processing beginner-friendly and efficient. With dependable performance and straightforward compatibility, the SmartElex Micro ISM330DHCX is a practical choice for prototyping, academic learning, and product development where reliable motion tracking and sensor fusion are essential. Features: 6DoF IMU with built-in accelerometer and gyroscope for motion tracking Measures linear acceleration and rotational movement in real time Compact breakout board designed for easy integration in projects Compatible with Arduino, Raspberry Pi, ESP32, and similar platforms Ideal for robotics, drones, wearables, and gesture-based control systems Reliable module for prototyping, STEM learning, and embedded development

Pludo STEM Kit DIY AIRCRAFT – DIY Science Kit for Kids 11–14 | Grade 6–8 Learn Concepts of Propulsion Ignite your child’s curiosity with the Pludo STEM Kit DIY AIRCRAFT, an exciting science experiment kit designed to make learning physics fun and hands-on. This educational kit introduces children to the fascinating concepts of aerodynamics, motion, and electric energy through a creative DIY aircraft project. As kids build their own wooden electric taxiing aircraft, they discover how power and motion work together in real machines. The model operates by converting electrical energy from a battery into mechanical motion using a small DC motor. When powered, the motor spins the front propeller at high speed, generating forward thrust. This thrust moves the lightweight aircraft along the ground on its wheels, clearly demonstrating how electric motors drive propellers in real aircraft systems. As one of the most engaging STEM kits and kids learning toys, it promotes active learning through play and experimentation. Whether used at home, in classrooms, or for school science projects, this science toy offers an enriching educational experience that blends fun, learning, and real-world application. What Your Child Will Learn: Discover how electric energy powers motion through an engaging aircraft experiment. Understand aerodynamic design principles that keep vehicles stable and efficient. Strengthen logical thinking, creativity, and fine motor skills through hands-on construction. Encourage curiosity and innovation by connecting theoretical science to practical application. Build confidence through problem-solving and experimentation that makes learning exciting. Educational Outcomes Energy Conversion: Explore how electrical energy transforms into motion and kinetic energy. Aerodynamics & Mechanics: Learn about airflow, balance, and motion through practical observation. Physics in Action: Connect real-world concepts of force, friction, and motion with fun experiments. STEM Skill Development: Build confidence in scientific reasoning, assembly, and testing. Collaborative Learning: Encourages teamwork and communication through group or classroom experiments. Did You Know? Aircraft wings are designed to create lift by shaping airflow — the same principle your Electrotaxi model uses to glide smoothly! Features Hands-on DIY science experiment kit that helps kids explore aerodynamics, motion, and electric energy through a fun aircraft-building activity. Encourages curiosity, logical thinking, and creativity as children assemble and test their own electric wooden aircraft model. Designed as an educational kit that supports experiential learning and enhances understanding of basic physics and energy conversion. Made from durable, safe, and eco-friendly materials, ensuring a secure and enjoyable playtime experience. Ideal for children aged 11–14 years (Grades 6–8), offering age-appropriate exposure to science and engineering principles. Promotes teamwork and problem-solving, making it perfect for classroom experiments, home learning, or group science activities. Included manual provides step-by-step guidance for easy assembly, testing, and understanding of the working model. Makes a perfect science toy gift for birthdays, holidays, or school science fairs — a fun way to inspire young minds in STEM learning.

7Semi SHT40 Temperature & Humidity Sensor Breakout Board with 1.27mm Pitch The 7Semi SHT40 Temperature and Humidity Sensor Breakout is a compact, precision-engineered module built for applications where accurate environmental monitoring and ultra-low power consumption are crucial. Powered by Sensirion’s fourth-generation SHT40 sensor, it delivers highly reliable 16-bit temperature and humidity data while operating at just 3.3V. With its exceptionally low energy usage, fast response time, and robust ±1.8% RH and ±0.2°C accuracy, it’s an ideal upgrade for modern IoT, wearable, and battery-powered designs that demand consistent and stable performance. Designed for effortless integration, the board features a 1.27 mm pitch, a 4-pin header, and a versatile I2C interface with multiple address options, making it simple to deploy across embedded systems, development platforms, and prototype setups. Whether you're building smart home automation, industrial monitoring, or IoT environmental sensing projects, this SHT40 breakout ensures dependable, long-term operation even in demanding ambient conditions, helping engineers and makers achieve more accurate and energy-efficient data processing. Features: The SHT40 sensor delivers high-precision readings with ±1.8% RH humidity accuracy and ±0.2°C temperature accuracy for trustworthy environmental data. Designed for low-power applications, operating at under 0.15mA in low-power mode for extended battery life. Compact breakout board with a 1.27 mm pitch 4-pin header, making it ideal for tight-space electronic designs and fast prototyping. Provides a reliable I2C communication interface with multiple preconfigured addresses for easy use in multi-sensor networks. Efficient 3.3V operation ensures stable performance across microcontroller and IoT platforms. Fast response time of 8 seconds for real-time temperature and humidity tracking. Suitable for smart homes, industrial automation, IoT environmental nodes, air quality systems, and intelligent building applications.

7Semi BME688 Environmental Sensor Breakout with Gas, Temperature, Humidity & Pressure Monitoring The 7Semi BME688 Environmental Sensor Breakout is a next-generation module designed for creators, engineers, and researchers looking to capture highly accurate environmental data in one compact board. Built using Bosch Sensortec’s advanced technology, it measures temperature, humidity, barometric pressure, and a wide range of gases - including VOCs, VSCs, CO, and hydrogen. With AI-enabled gas scanning, this sensor offers unmatched flexibility and precision, making it ideal for air quality monitoring, IoT devices, and smart home automation. This tiny board brings premium reliability, fast response times, and long-term stability to any embedded setup. Thanks to support for both I2C and SPI interfaces, the BME688 integrates easily with platforms like Arduino, ESP32, and Raspberry Pi. Whether you’re building an indoor air quality tracker, creating a wearable environmental sensor, or developing research-grade monitoring equipment, this module delivers the depth of data you need. With intelligent gas detection powered by machine learning and a wide operating range, the BME688 excels in environmental sensing, embedded electronics, and modern IoT applications without adding bulk or complexity. Features: Delivers 4-in-1 sensing capabilities with precise measurement of temperature, humidity, atmospheric pressure, and multiple gases in a single compact module. Features AI-enabled gas scanning that detects VOCs, VSCs, carbon monoxide, hydrogen, and other gases using machine-learning-based profiling. Provides high accuracy, low drift, and rapid response speeds for dependable long-term environmental monitoring. Offers flexible integration with both I2C and SPI interfaces for seamless compatibility across microcontrollers and embedded systems. Compact, lightweight design makes it suitable for portable devices, IoT deployments, smart home systems, and environmental research setups. Allows custom tuning of sampling rates, power consumption, and gas sensitivity for specialised applications. Backed by Bosch Sensortec’s reputation for durability, ensuring stability and reliable performance in continuous operation. BME688 4-in-1 Air Quality Sensor Breakout Dimensions: BME688 4-in-1 Air Quality Sensor Breakout Pinouts:

7Semi 3Phase TMC6300 BLDC PMSM Brushless Motor Driver Breakout The 7Semi 3Phase TMC6300 BLDC PMSM Brushless Motor Driver Breakout is a compact, efficient brushless motor driver built for controlling 3-phase brushless motors with ease. It integrates the TMC6300 IC to simplify motor driving, reduce external components, and enable smooth, reliable operation. Designed for practicality and reliability, the board offers easy microcontroller compatibility, stable performance, and built-in protections for safe use. It is well suited for students, hobbyists, and professionals working on robotics, automation, drones, and motor-driven DIY applications. Features: Powered by the TMC6300 motor driver IC with high-side and low-side MOSFET control for each phase Supports 6-PWM input signals for precise and complete motor control Diagnostic output for easy detection of system faults Wide 2–11V operating voltage, ideal for low-power applications Breadboard-compatible design with optimized header alignment Built-in thermal and short-circuit protection for safe operation Breakout Board Pinouts – TMC6300 Motor Driver IC Power & Control Inputs VM / GND – Motor power supply (2–11V) VIO – I/O logic level supply / standby control PWM Control Inputs (High-side & Low-side MOSFETs) UH / UL – Phase U PWM inputs VH / VL – Phase V PWM inputs WH / WL – Phase W PWM inputs Outputs SENSE – Current sense output DIAG – Diagnostic and fault indication output U / V / W – Motor phase outputs from the three half-bridges

SmartElex Atmospheric Sensor Breakout – BME280 Temperature, Humidity & Pressure Sensor Module The SmartElex Atmospheric Sensor Breakout is a compact and reliable module designed to measure temperature, humidity, and air pressure with high accuracy. Built around the powerful BME280 sensor, this 3-in-1 sensor module makes it easy to monitor environmental conditions in real time. Perfect for weather stations, IoT systems, and smart home devices, this environmental sensor breakout delivers precise readings while consuming very little power. It supports both I2C and SPI communication interfaces, making it simple to connect with popular boards like Arduino, ESP32, or Raspberry Pi. Whether you’re building an automation project or a DIY weather monitor, this temperature, humidity, and pressure sensor breakout provides reliable performance and easy integration. It’s a great choice for makers, students, and developers who want accurate environmental data in a small and efficient module. Features: 3-in-1 Environmental Sensor: Accurately measures temperature, humidity, and barometric pressure using the BME280 sensor. High Precision Readings: Provides stable and accurate data for weather monitoring and environmental analysis. I2C & SPI Compatible: This I2C SPI environmental sensor module easily interfaces with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Compact Design: Small and lightweight, making it perfect for embedded systems, IoT devices, and portable applications. Low Power Consumption: Efficient sensor design ensures reliable long-term use in battery-powered projects. Easy to Integrate: Ideal for beginners and professionals working on DIY weather stations, home automation, or environmental monitoring systems.

SmartElex RLS05 Line Follower Sensor The SmartElex RLS05 Line Follower Sensor is a compact and easy-to-use module designed to help robots detect and follow lines on a surface with accuracy. It is ideal for students, makers, educators, and early-stage engineers who are learning robotics or building simple autonomous systems. The sensor simplifies line detection by clearly identifying path contrasts, making it easier to develop reliable line-following behavior without complex circuit design. This sensor is widely used in line follower robots, educational robotics kits, and automation prototypes where precise path tracking is required. It integrates smoothly with popular platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick setup and experimentation. With dependable performance and straightforward interfacing, the SmartElex RLS05 enables users to focus on coding logic and robot movement, making it well suited for classrooms, labs, competitions, and DIY robotics projects in India. Pin Diagram: How to Calibrate SmartElex RLS05 Line Follower Sensor Step 1: Enter Calibration Mode Press the calibration button once or pull the CAL pin low for a few milliseconds. When three LEDs (D0, D2, and D4) turn ON, the module has entered calibration mode. Step 2: White Surface Reading Place the RLS05 module on a white surface and press the calibration button again. When two LEDs (D3 and D4) turn ON, the white surface values are read and saved in EEPROM. Step 3: Black Surface Reading Place the module on a black surface and press the calibration button once more. When three LEDs (D2, D3, and D4) turn ON, the black surface values are read and stored. Step 4: Select Line Following Mode To enable white line following, press the calibration button three times within one second. LEDs (D2, D3, and D4) will blink to confirm selection. To enable black line following, press the calibration button twice. LEDs (D0, D1, and D2) will blink to confirm the mode selection. Features: Five-channel line detection for accurate and stable line following Supports both black line and white line tracking modes One-time calibration with onboard EEPROM memory Easy calibration using onboard push button or CAL pin Compatible with Arduino, Raspberry Pi, and ESP32 platforms Ideal for robotics projects, educational kits, and automation prototypes