7Semi DC-DC Buck Converter 5V 3A Out - MP2338

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

SmartElex MicroB USB Breakout Board The SmartElex MicroB USB Breakout Board is a compact adapter board designed to make it easy to access the pins of a Micro-B USB connector for prototyping, development, and testing. It breaks out the USB port into simple pin headers, allowing users to interface USB power and data lines with custom circuits, breadboards, and microcontroller boards. This USB breakout board is ideal for students, makers, educators, and engineers who need a quick and reliable way to add USB connectivity to their electronics projects without designing a custom PCB. This board is commonly used in robotics, IoT applications, embedded system development, device repair, and hardware prototyping where USB access is required for powering circuits or transferring data. It works smoothly with platforms like Arduino, Raspberry Pi, and ESP32, enabling fast integration with both beginner and advanced projects. With its straightforward layout and sturdy connector design, the SmartElex MicroB USB Breakout Board is a practical and efficient choice for workshops, prototyping labs, and DIY electronic builds that require stable Micro-B USB interfacing Features: Micro-B USB connector broken out to easy-to-use header pins Simplifies USB power and data access for prototyping and testing Supports quick integration with breadboards and custom circuits Compatible with Arduino, Raspberry Pi, ESP32, and microcontrollers Ideal for DIY repairs, IoT projects, and embedded hardware development Compact and beginner-friendly design for rapid project setup

SmartElex HTU21D-F Temperature and Humidity Sensor with Breakout Board The SmartElex HTU21D-F Temperature and Humidity Sensor with Breakout Board is a compact and reliable temperature and humidity sensor designed for accurate environmental monitoring. It helps users measure ambient temperature and humidity digitally with stable output, making it suitable for students, makers, educators, and engineers working on sensing and monitoring applications. This digital temperature and humidity sensor is ideal for those who want dependable readings without complex circuitry, especially in learning, testing, and early product development environments. This I2C digital humidity sensor is widely used in IoT systems, weather monitoring projects, automation setups, and data logging applications where consistent environmental data is required. It integrates easily with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick setup and smooth communication through the I2C interface. With its breakout board design and reliable performance, the SmartElex HTU21D-F sensor is well suited for prototyping, robotics projects, and educational labs looking for a practical alternative to traditional sensors like SHT15 breakout boards. Features: Digital temperature and humidity sensor with stable and accurate readings I2C interface for simple and reliable data communication Compact breakout board for quick prototyping and testing Easy to use with Arduino, Raspberry Pi, and ESP32 platforms Suitable for IoT, automation, and environmental monitoring projects Ideal replacement option for older sensors like SHT15 breakout boards

SmartElex 3.3V 1A LM2575S Buck Module The SmartElex 3.3V 1A LM2575S Buck Module is a compact step-down power converter designed to provide a stable 3.3V output from a higher input voltage source. It helps solve common power regulation challenges in electronic projects by ensuring sensitive components receive consistent voltage without overheating or voltage drops. This module is suitable for students, hobbyists, engineers, educators, and startups who need a dependable power solution for embedded systems, DIY electronics, and learning-based projects. This buck module is well suited for use in robotics, IoT devices, automation systems, and general prototyping where a reliable 3.3V supply is required. It can be easily integrated with popular development platforms such as Arduino, Raspberry Pi, and ESP32 to power sensors, communication modules, and controllers. The simple design and dependable performance make it easy to add to both experimental setups and final products, helping users focus on functionality rather than power stability. Note: Ensure proper heat dissipation to avoid overheating during high-power output. Suitable for applications requiring a stable 3.3V power source. Ideal for powering devices in the 3.3V range with 1A current draw. Features: Wide input voltage support from 7V to 40V DC Fixed and stable 3.3V output for low-voltage electronics Delivers up to 1A output current for reliable power delivery High efficiency design helps reduce heat and power loss Built-in protection against overcurrent, overheating, and short circuits Compact and durable module for easy integration into projects Applications: Battery-powered devices needing efficient step-down voltage regulation Power supply for sensors, communication modules, and peripherals Suitable for Arduino, Raspberry Pi, ESP32, and other microcontrollers Low-power LED lighting and small DC-powered electronics Ideal for DIY electronics, learning projects, and prototyping setups

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 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

7Semi MCP23017 I2C to 16 IO Expander Breakout Board The 7Semi MCP23017 I2C to 16 IO Expander Breakout Board is designed to expand the digital I/O capability of microcontrollers using the trusted MCP23017 I2C IO Expander IC. It provides exactly 16 configurable GPIO pins over a single I2C bus, reducing wiring complexity while maintaining stable performance. Each pin can be independently set as input or output, and the onboard interrupt feature allows the controller to respond instantly to pin state changes. This MCP23017 Breakout Board is compact, easy to integrate, and ideal for applications such as home automation, robotics, industrial control panels, and any project that requires multiple digital inputs and outputs without consuming extra microcontroller pins. Features: 16 I/O Pins: Converts two signal pins into sixteen completely customizable I/O pins. Multi-board Expansion: For larger applications, stack up to 8 boards to provide up to 128 I/O pins. Configure I2C addresses by setting the A0, A1, and A2 jumpers. Dual Connectivity: Includes PH2.0 terminal and solder pad choices for simple connection. Wide Compatibility: Compatible with both 3.3V and 5V systems, ensuring platform versatility. Interrupt Support: The INTA and INTB interrupt pins are used for real-time signal handling. Development Resources: Includes detailed instructions and sample projects for Raspberry Pi, Arduino, STM32, and micro. Easy Integration: The I2C interface, combined with a 4Pin 2.0 mm JST connector, provides for an easy and flexible connection to any MCU.

SmartElex BMM150 3 Axis Magnetometer Sensor The SmartElex BMM150 3 Axis Magnetometer Sensor is a compact digital sensor designed to measure magnetic fields along three axes. It helps users accurately detect orientation and heading, making it useful in projects where direction sensing and magnetic field measurement are required. This sensor is suitable for students, makers, engineers, educators, and startups working on embedded systems, learning projects, and prototype development that need reliable magnetic sensing in a small and easy-to-use form. This 3 axis magnetometer sensor is commonly used in robotics, IoT devices, navigation systems, and automation projects that require compass functionality or motion awareness. It can be easily integrated with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing smooth data communication and quick setup. The stable performance and simple interfacing make it ideal for applications like robot navigation, electronic compasses, orientation tracking, and smart sensor-based systems Note - The default configuration of module is I2C interface, for SPI interface remove I2C smd jumper & short SPI smd jumper on module. Features: Measures magnetic field strength along three axes (X, Y, and Z) Enables accurate heading and orientation detection Digital output for easy interfacing with microcontrollers Low power operation suitable for battery-powered projects Compact sensor design for space-constrained applications Compatible with Arduino, Raspberry Pi, ESP32, and other development boards

7Semi DC-DC Buck Converter 7V-40V Input to 5V 5A Output- AP64500 (BO-10188) The 7Semi DC-DC Buck Converter 7V–40V Input to 5V 5A Output – AP64500 (BO-10188) is a high-power voltage regulator module designed to convert higher DC input voltages into a stable 5V output with up to 5A current. Its wide input range makes it suitable for many power sources, including batteries and industrial supplies, where reliable 5V power is needed. Built around the efficient AP64500 synchronous buck converter, this module delivers stable output with low heat and high efficiency, even under heavy load. It is well suited for powering microcontrollers, single-board computers, sensors, and communication modules. Whether you’re building robotics, automation systems, or advanced electronics projects, this buck converter provides dependable and efficient power management. Features: Wide input voltage range: 7V to 40V DC Stable 5V output with up to 5A continuous current High-efficiency synchronous buck converter using AP64500 Low thermal loss and reliable performance under load Compact breakout module for easy project integration Built-in power protection features for safe operation Ideal for microcontrollers, SBCs, IoT and embedded systems Suitable for robotics, automation, and power supply projects

7Semi MCP9808 I2C Temperature Sensor Breakout The 7Semi MCP9808 I2C Temperature Sensor Breakout is a precision I2C temperature sensor module designed to deliver accurate and reliable temperature measurements with minimal effort. Built around the high-accuracy MCP9808 temperature sensor IC, this breakout board provides easy digital temperature sensing through a standard I2C interface, making it ideal for projects where precise environmental monitoring is essential. It solves the challenge of interfacing analog temperature sensors with microcontrollers by offering a simple digital communication method that eliminates the need for complex calibration. This compact sensor module is highly compatible with popular development platforms like Arduino, Raspberry Pi, and other microcontrollers, offering stable performance and low power consumption. With its high accuracy and straightforward interface, it’s perfect for students, hobbyists, and professionals working on weather stations, HVAC systems, data loggers, thermal control systems, and indoor environmental monitoring projects. Its robust design ensures dependable readings across a wide range of applications, reducing development time and improving overall system reliability. Features: High-accuracy MCP9808 sensor IC with ±0.25 °C typical precision Wide operating temperature range from –40 °C to +125 °C High-resolution temperature readings with 0.0625 °C resolution Supports 2.7V to 5.5V power and logic levels for flexible compatibility I²C interface allows connection of up to 8 sensors on a single bus Compact breakout board for easy integration in embedded projects

7Semi SHT41 Temperature & Humidity Sensor Tiny Breakout with I2C Qwiic The 7Semi SHT41 Temperature & Humidity Sensor Tiny Breakout is crafted for engineers, IoT developers, and embedded system designers who need precise environmental monitoring in extremely compact spaces. Powered by the fourth-generation SHT41 sensor, it delivers exceptional accuracy with ±1.8% RH and ±0.2°C precision, making it ideal for sensitive applications like HVAC regulation, smart home devices, and industrial IoT nodes. Its stable readings and fast response time ensure reliable environmental sensing even in dynamic conditions. Designed for low-power performance, this breakout operates on a 3.3V supply and consumes less than 0.15 mA in low-power mode, making it a perfect match for wireless systems and battery-powered deployments. With built-in I2C support, multiple address options, and a compact 1.27 mm pitch connector, integration is quick and hassle-free. Whether you're building connected sensors, indoor air-quality systems, or compact IoT hardware, this module provides dependable data for real-time decision-making and energy-efficient operations. Features: Designed with the advanced SHT41 sensor, offering high-precision measurements with ±1.8% RH humidity accuracy and ±0.2°C temperature accuracy. Operates with ultra-low power consumption, drawing less than 0.15mA in low-power mode to extend battery life in portable systems. Supports I2C communication with multiple configurable addresses for flexible integration in multi-sensor setups. Compact and lightweight form factor with a 1.27 mm pitch 4-pin connector, making it suitable for tight-space and embedded applications. Built for industrial-grade reliability, ensuring consistent performance across typical indoor and light industrial environments. Simple plug-and-play workflow enables quick installation for IoT platforms, smart buildings, automation systems, and environmental monitoring.

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:

7Semi High-Precision Temperature & Humidity Sensor Probe The 7Semi High-Precision One-Wire Temperature and Humidity Probe is engineered for applications where accuracy, durability, and reliability truly matter. Built with advanced CMOSens sensing technology, it delivers precise digital measurements even in extreme environmental conditions. Its stainless-steel porous housing provides excellent protection against moisture, dust, and chemical contaminants, making it dependable for long-term use in demanding setups. Designed for industrial automation, scientific research, HVAC systems, and environmental monitoring, this probe offers excellent responsiveness and stability across wide temperature and humidity ranges. The one-wire interface reduces wiring complexity, while the compact form factor and 1-meter cable make installation effortless. With its industrial-grade sensing, high-accuracy performance, and rugged enclosure, this probe is ideal for both stationary and mobile applications. Features: Designed with advanced CMOSens technology to deliver highly accurate humidity and temperature readings in challenging environments. Operates efficiently at 3.3V, making it suitable for battery-powered and portable devices. Works across extreme environmental conditions, including temperatures from -40°C to +125°C and pressures up to 150 bar. Encased in a stainless-steel breathable shell that resists corrosion, dust, chemical exposure, and moisture. One-wire digital interface ensures simple integration and minimal wiring requirements. Proven reliability in high-pressure, high-temperature, vacuum, and explosive environments. Built for long service life with strong resistance to oxidation and particulate blockage. Includes a 1-meter cable with a mini round shell connector for flexible installation in tight or specialized spaces. 7Semi High-Precision Temperature & Humidity Sensor Probe Pinout Diagram:

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

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