SmartElex IIC/I2C Serial Interface Adapter Module – LCD Display Interface Converter Board

DIY 51 MCU Electronic Clock Kit (Red) – 1" Light-Control LED Display with Assembly Case for STEM Projects This DIY 51 MCU Electronic Clock Kit offers an engaging way to learn core electronics and microcontroller concepts. It features a clear 1-inch LED digital display paired with an intelligent light-control function, ensuring visibility in different lighting conditions. The kit comes unassembled, allowing learners to understand every part of the build, from wiring to mounting, while gaining confidence in practical electronics. Designed for STEM and STEAM education, this kit encourages curiosity, experimentation, and hands-on problem-solving. It's an excellent tool for students, hobbyists, and makers looking to explore timekeeping circuits and microcontroller basics. Whether used in classrooms or at home, it helps develop creativity, scientific thinking, and technical skills through a fun, interactive building experience. Features: DIY microcontroller-based clock kit for hands-on learning and experimentation. Equipped with a bright 1-inch LED digital display and automatic light-control function. Includes pre-cut housing and all necessary electronic parts for easy assembly. Supports STEM/STEAM skill development in electronics, engineering, and problem-solving. Helps nurture creativity, observation, and practical building ability. Suitable for home learning, school labs, and maker workshops. Comes with a study-style instruction manual for guided learning.

SmartElex Single Cell MPPT Solar Charger for LiPo Battery SmartElex Single Cell MPPT Solar Charger for LiPo Battery is designed to efficiently charge a single-cell LiPo battery using solar panels by extracting maximum power under varying sunlight conditions. This MPPT solar charger uses Maximum Power Point Tracking to optimize solar energy harvesting, making it a practical choice for students, hobbyists, engineers, educators, and startups working on renewable energy systems or off-grid electronics. It helps solve the common issue of inconsistent solar charging by maintaining stable charging performance even when light levels fluctuate. This solar LiPo charger module integrates easily with microcontroller platforms like Arduino, Raspberry Pi, and ESP32, making it suitable for IoT devices, autonomous sensor nodes, outdoor robots, and portable energy projects. It is ideal for prototyping solar-powered systems, automation setups, and remote monitoring applications where reliable charging is essential. With its compact size and stable charging algorithm, it provides a dependable foundation for building energy-efficient and self-sustaining electronics powered directly by the sun. Features: MPPT charging algorithm for maximum solar energy utilization Designed for charging single-cell LiPo batteries from solar panels Maintains stable charging even with fluctuating sunlight Ideal for off-grid and renewable energy-based electronics Compatible with Arduino, Raspberry Pi, ESP32, and IoT devices Compact module for portable, outdoor, and self-sustaining projects

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

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.

7Semi SHT40 SGP40 VOC Environmental Monitoring Sensor Module Qwiic-Ready The 7Semi SHT40 + SGP40 VOC Environmental Monitoring Sensor Module is designed to help you measure temperature, humidity, and air quality with high accuracy and minimal effort. Built with advanced SHT40 and SGP40 sensing technology, this compact module delivers precise data for temperature (–40°C to 125°C), humidity (0–100% RH), and VOC levels with excellent response time and reliability. Whether you're prototyping with Arduino, Raspberry Pi, or any I2C-based microcontroller, the Qwiic-compatible interface makes integration incredibly simple and clean. This breakout board is ideal for home automation, indoor air-quality projects, workplace monitoring, or industrial systems where accurate VOC readings matter. Its low power consumption and digital 16-bit output make it highly suitable for long-term IoT deployments, high-precision environmental sensing projects, and portable air-quality monitors. Features: Designed as a compact breakout board integrating the SHT40 high-precision temperature and humidity sensor and the SGP40 VOC sensor for reliable environmental monitoring. Offers fast and accurate measurements, including ±0.2°C temperature accuracy and ±1.8% RH humidity accuracy, ensuring dependable readings in various environments. Qwiic-compatible interface enables effortless plug-and-play connectivity with I2C-enabled microcontrollers and SBCs without soldering. Produces 16-bit digital raw and processed VOC Index signals for easy integration into data-logging, automation, or IoT systems. Ensures low power consumption, making it suitable for battery-powered and continuous-monitoring applications. Built to detect a wide range of volatile organic compounds such as ethanol, acetone, and formaldehyde with high sensitivity and quick response times. Board Dimensions: Arduino I2C Connection Diagram:

ACEBOTT QE201 Wooden Board for ESP32 Basic Starter Kit (Expansion Pack) The ACEBOTT QE201 Wooden Board for ESP32 Basic Starter Kit (Expansion Pack) is a practical learning expansion designed to enhance the core ESP32 starter kit with real-world, hands-on projects. Built with wooden structural assembly support, this expansion enables users to create 37+ interactive projects such as a Smart Butterfly, Electronic Piano, Smart Watermelon Fan, Smart Barrier, and Smart Trash Can. It is fully compatible with Arduino and Blockly programming, making it ideal for beginners who want to learn electronics, coding, and automation in a simple and humanized way. The main core function of this expansion pack is to transform basic electronic concepts into physical smart models, helping users understand how embedded systems work through engaging and easy-to-build projects. Features: Supports 37+ practical expansion projects for ESP32 learning Designed for wooden structural assembly to build physical smart models Compatible with ACEBOTT QE201 ESP32 Basic Starter Kit Works with both Arduino and Blockly programming platforms Includes smart applications like Smart Butterfly, Electronic Piano, Smart Fan, Smart Barrier, Smart Trash Can Beginner-friendly design for easy assembly and understanding Humanized learning approach for interactive STEM education Suitable for students, hobbyists, and training institutes

SmartElex 5V 3A 8 Channel Signal Relay Module The SmartElex 5V 3A 8 Channel Signal Relay Module is a dependable switching solution built to control multiple electrical devices with precision. This 8 Channel Relay Module features eight JY4100F-S-DC5V-C relays, each capable of safely switching loads up to 3A at 120V AC or 24V DC. Designed to operate on a stable 5V supply, it offers individual input triggers and LED indicators for real-time status visibility. With strong electrical isolation and seamless compatibility with Arduino, ESP32, and Raspberry Pi, this 5V relay module is well-suited for automation panels, IoT systems, and complex control applications where reliable multi-channel switching is essential. Applications: Smart home automation (e.g., managing several appliances) Complex industrial automation systems. Robotics projects require several actuators. IoT systems have several relay outputs. Alarms, security, and access control panels Cautions: Use a well regulated 5V supply with adequate current (at least 1A suggested). Ensure that relay load restrictions are not exceeded. To avoid electrical dangers, securely isolate all AC wiring. Maintain a dry, clean, and dust-free atmosphere. Features: An 8-channel relay module with individual control. It operates at 5V DC and has active LOW/HIGH triggers. Each relay can handle 3A at 120V AC or 24V DC. Compatible with Arduino, ESP32, Raspberry Pi, and more platforms. Status LEDs for each channel are used to monitor operation. Fast switching: ≤10 ms operation and ≤5 ms release. Contact resistance of ≤100 mΩ enables stable conductivity. Total power usage is around 2.88W across all channels. High insulation resistance and dielectric strength are essential for safety. Suitable for -40°C to +85°C temperatures.

SmartElex STTS22H Temperature Sensor Module The SmartElex STTS22H Temperature Sensor Module is a compact and reliable temperature sensor module designed for accurate digital temperature measurement. It helps users monitor temperature precisely in electronic systems without complex circuit design, making it ideal for students, makers, educators, and engineers working on sensing and monitoring projects. With its breakout board design, this digital temperature sensor is easy to handle and well suited for learning, testing, and early-stage product development. This sensor module is commonly used in IoT devices, robotics systems, automation setups, and data logging applications where consistent temperature monitoring is required. It integrates easily with popular platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick connection and smooth communication for prototyping and experimentation. With dependable performance and simple integration, the SmartElex STTS22H breakout board is a practical choice for educational labs, DIY projects, and embedded development applications. Features: Digital temperature sensor module with stable and accurate readings Breakout board design for easy handling and quick prototyping Simple digital interface for smooth data communication Compatible with Arduino, Raspberry Pi, and ESP32 platforms Ideal for IoT, robotics, and automation projects Suitable for education, DIY electronics, and embedded development

SmartElex BX404 Digital PIR Motion Sensor The SmartElex BX404 PIR Motion Sensor is a compact and reliable BX404 PIR Motion Sensor designed to detect human movement using passive infrared technology. It helps users sense motion accurately by detecting changes in body heat, making it useful for security, automation, and energy-saving applications. This passive infrared sensor is ideal for students, makers, educators, engineers, and startups looking to add motion detection to their electronic projects in a simple and effective way. The sensor works smoothly with popular platforms such as Arduino, Raspberry Pi, and ESP32, allowing easy integration into robotics, IoT devices, and automation systems. Its stable digital output makes it suitable for applications like smart lighting, intrusion alarms, occupancy detection, and DIY prototypes. With easy interfacing and dependable performance, this sensor enables quick development of motion-based solutions for real-world electronics projects. Features: Accurate motion detection using passive infrared sensing Designed for reliable human movement detection Digital output for easy interfacing with controllers Compatible with Arduino, Raspberry Pi, and ESP32 Low power operation for continuous monitoring Ideal for security, automation, and smart electronics projects

7Semi IMU BMI270 Accelerometer & Gyroscope Breakout - STEMMA QT / Qwiic Compatible The 7Semi IMU BMI270 Accelerometer and Gyroscope Breakout is a high-performance motion-sensing module built around Bosch Sensortec’s powerful BMI270 IMU. Designed for next-generation wearable devices, robotics projects, and motion-tracking applications, this sensor delivers exceptional accuracy, ultra-low power consumption, and industry-leading self-calibrating gyroscope technology. With features like motionless CRT (Component ReTrimming), it automatically compensates for soldering drift, ensuring reliable long-term performance with minimal sensitivity error. STEMMA QT / Qwiic connectors, integrating the BMI270 into your microcontroller or IoT system is effortless, no soldering, no hassle. This breakout also supports advanced gesture recognition, activity detection, step counting, and context awareness, making it ideal for smart wearables, VR projects, and embedded motion-tracking solutions. Whether you’re building smart eyewear, intelligent shoes, robotics platforms, or fitness devices, the BMI270 ensures smooth, precise, and real-time inertial data. Features: Supports 3.3V and 5V operation for compatibility with a wide range of microcontrollers. Includes a 16-bit 3-axis accelerometer with selectable ±2g/4g/8g/16g ranges for flexible performance. Equipped with a 16-bit 3-axis gyroscope supporting ±125 to ±2000 dps for accurate angular sensing. Features Bosch’s self-calibrating gyroscope (CRT) to eliminate post-soldering drift and maintain precision. Supports rich motion and gesture detection, including step counting, activity recognition, wrist flick, any-motion, no-motion, and more. STEMMA QT / Qwiic interface provides plug-and-play connectivity for easy prototyping and integration. Ideal for wearables, robotics, AR/VR systems, motion tracking, smart textiles, and IoT devices. BMI270 Accelerometer and Gyroscope Breakout Dimensions: BMI270 Accelerometer and Gyroscope Breakout Pinout: BMI270 Breakout Arduino Connection:

SmartElex RJ45 magjack Connector Breakout Board The SmartElex RJ45 MagJack Connector Breakout Board is a convenient module designed to make Ethernet connectivity accessible for custom electronics projects. It breaks out an RJ45 Ethernet jack with integrated magnetics, allowing users to interface network signals with development boards, prototypes, and embedded circuits without needing to design their own connector layout. This board is ideal for students, makers, engineers, educators, and startups who want to experiment with wired networking, communication protocols, or LAN-based control in robotics and IoT applications. This RJ45 MagJack breakout board is commonly used in IoT networks, automation systems, communication modules, and hardware prototypes that require Ethernet access for data transfer or device control. It can be used with platforms like Arduino, Raspberry Pi, ESP32, and other microcontroller boards that support Ethernet interfacing through additional hardware or modules. With reliable connectivity and a beginner-friendly breakout design, the SmartElex RJ45 MagJack Connector Breakout Board is a practical choice for testing, learning, and developing Ethernet-enabled electronic devices and embedded systems. Features: Breaks out an RJ45 MagJack Ethernet connector to easy-to-use pins Simplifies Ethernet interfacing for prototyping and custom circuits Integrated magnetics for stable network signal handling Compatible with Arduino, Raspberry Pi, ESP32 (with Ethernet support) Ideal for IoT, automation, LAN communication, and embedded systems Great for testing, learning, and building Ethernet-enabled devices

1-Inch LED Digital Display DIY Clock Kit (Blue) – Light-Control MCU Project Set with Casing This DIY LED Digital Clock Kit is an excellent hands-on project for anyone interested in learning how microcontroller-based circuits work. Built around a 51-series MCU, it features a bright 1-inch LED tube display and an automatic light-sensing function that adjusts brightness according to the environment. The kit arrives as individual components, giving learners the opportunity to assemble, solder, and understand every part of the circuit. Created with STEM and STEAM education in mind, this kit helps improve logical thinking, practical assembly skills, and fundamental electronics knowledge. Whether used in a school lab, a maker space, or a home learning setup, it offers a fun and meaningful way to encourage creativity, experimentation, and scientific curiosity. The included housing completes the project with a clean, finished look once assembled. Features: DIY digital clock project featuring a 1-inch LED display for clear time reading. Light-sensing feature ensures suitable brightness in different lighting conditions. Comes as a complete unassembled kit to promote hands-on learning. Strengthens STEM/STEAM concepts such as circuitry, design, and problem-solving. User-friendly build suitable for classrooms, hobbyists, and beginners. Includes a protective enclosure for a neat and durable finish. Includes study instructions to guide the assembly process.

SmartElex USB-C Serial Basic Converter and CH340C IC Breakout Module he SmartElex USB-C Serial Basic Converter with CH340C is a compact USB-to-serial adapter designed to help users program, debug, and communicate with microcontroller boards and embedded systems. It converts USB signals to reliable UART serial communication, making it useful for students, hobbyists, engineers, educators, and startups working with boards that lack native USB support. With its USB-C interface and CH340C chipset, it provides a simple plug-and-play experience for connecting development boards, sensors, and custom circuits to a computer. This USB-to-serial converter is ideal for prototyping in robotics, IoT development, firmware flashing, serial monitoring, and automation projects. It works smoothly with platforms like Arduino, ESP8266, ESP32, Raspberry Pi (UART pins), and other TTL-based microcontrollers, making integration straightforward in both development and testing stages. Offering stable communication and easy computer connectivity, the SmartElex USB-C Serial Basic Converter with CH340C is a practical tool for labs, DIY electronics, and professional development environments. Features: Converts USB-C to TTL serial for programming and debugging CH340C chipset ensures stable and reliable UART communication Plug-and-play design for quick connection to development boards Compatible with Arduino, ESP8266, ESP32, Raspberry Pi (UART), and more Ideal for firmware flashing, serial monitoring, and IoT prototyping Compact breakout module for labs, workshops, and field testing

Cytron Maker Reflect IR Reflectance Sensor for Beginner The Cytron Maker Reflect IR Reflectance Sensor is a compact and beginner-friendly module designed to help learners understand how infrared reflectance works in robotics and automation. Using an IR LED and a high-sensitivity phototransistor, it measures how much IR light bounces back from a surface and generates an analog voltage that’s easy for any microcontroller to read. This makes it perfect for exploring concepts like surface detection, black-and-white line following, and reflectivity measurement. Designed by Cytron with simplicity in mind, this sensor is ideal for kids, students, and makers stepping into DIY robotics projects. Its ultra-small size and centered mounting hole allow it to fit even in tight robot designs, while its 3.3V and 5V compatibility ensures smooth use with Arduino, Raspberry Pi, and all common controllers. Whether you're building a line follower, Sumo bot, maze robot, or encoder-based mechanism, the Maker Reflect delivers reliable IR performance with minimal setup. Features: Works as a hands-on IR reflectance sensor that uses an IR LED + phototransistor to measure surface reflectivity for reliable detection. Helps beginners learn analog sensing, line detection, object presence, and robot navigation, building strong STEM fundamentals. Built with safe, durable Cytron components, ensuring stable performance even in beginner-level DIY robotics projects. Fully compatible with 3.3V and 5V systems, making it easy to interface with Arduino, Raspberry Pi, microcontrollers, and robotics platforms. Offers a sensing distance of 1mm to 40mm at 5V (ideal for black/white surface detection and line following). Provides analog voltage output, allowing smooth interpretation of different surface colors and reflectivity. Compact size of 18.1mm × 8.4mm × 4.2mm, with a centered mounting hole for accurate positioning at the front of robots. Suitable for school projects, robotics clubs, and maker experiments - perfect for line followers, Sumo robots, maze solvers, and encoder wheels. Makes a great STEM learning gift for young robotics enthusiasts and beginners exploring IR sensors.

SmartElex Multiplexer USB/TTL/RS232/RS485 Communication Converter The SmartElex Multiplexer USB/TTL/RS232/RS485 Communication Converter is a versatile interface board designed to simplify data communication between different serial protocols. It allows users to convert and connect USB signals to TTL, RS232, or RS485 devices without complex wiring or additional hardware, making it ideal for students, makers, engineers, educators, and startups working with industrial equipment, microcontrollers, or legacy communication systems. This module helps bridge communication gaps between computers and embedded hardware, reducing setup time during development and troubleshooting. This multiplexer converter is commonly used in robotics, IoT device management, automation systems, PLC communication, sensor networks, and serial debugging tasks. It works smoothly with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms, enabling stable data exchange and reliable serial protocol conversion for both prototypes and field applications. With easy integration and dependable performance, the SmartElex USB/TTL/RS232/RS485 converter is a practical tool for laboratories, development environments, and industrial interfacing projects that require seamless multi-protocol communication. Features: Supports USB to TTL, RS232, and RS485 serial communication Enables multiple protocol conversions in a single module Simplifies interfacing between computers and embedded systems Compatible with Arduino, Raspberry Pi, ESP32, PLCs, and sensors Ideal for robotics, IoT, automation, and industrial applications Suitable for debugging, monitoring, and data communication testing