SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier The SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier is a compact audio amplification module designed to deliver clear and efficient stereo sound from low-power audio sources. It solves the need for adding audio output to small electronic projects without bulky components or complex circuits. This module is suitable for students, makers, engineers, educators, and startups who want an easy way to integrate stereo audio into DIY electronics, learning kits, and embedded system prototypes. This stereo mini Class-D audio amplifier is commonly used in robotics, IoT devices, automation systems, and portable electronics that require lightweight and power-efficient audio output. It can be easily interfaced with platforms such as Arduino, Raspberry Pi, and ESP32 to drive small speakers in projects like voice alerts, sound feedback systems, and interactive devices. The simple design and stable performance make it easy to integrate into both prototype builds and finished products, enabling reliable audio output with minimal setup effort. Features: Two-channel stereo Class-D audio amplifier for clear sound output Operates on a 5V power supply, ideal for embedded projects High efficiency design with low heat generation Compact size suitable for space-constrained applications Drives small speakers for stereo audio output Compatible with Arduino, Raspberry Pi, ESP32, and other audio-enabled projects

SmartElex PCA9306 Logic Level Translator Breakout Module The SmartElex PCA9306 Logic Level Translator Breakout Module is a compact solution designed to shift signal voltages between different logic levels in electronic systems. This PCA9306 level translator helps connect components that operate at mismatched voltages, such as 1.8V, 3.3V, and 5V devices, without risking damage or unstable communication. It is ideal for students, hobbyists, engineers, educators, and startups who need a simple and reliable way to manage voltage differences in mixed-signal circuits, sensor interfaces, and microcontroller projects. With its bidirectional design, this voltage level translator supports seamless communication in both directions, making it suitable for robotics, IoT devices, automation systems, and embedded prototyping. It works smoothly with platforms like Arduino, Raspberry Pi, ESP32, and other controllers, allowing easy integration with modules, displays, and sensors. Whether used as a bidirectional level shifter for I2C communication or for general logic conversion, it offers a practical way to ensure safe and consistent signal translation across a range of development environments. Features: Based on the PCA9306 bidirectional level shifting IC Safely converts logic levels between 1.8V, 3.3V, and 5V devices Supports I2C and general-purpose bidirectional communication Protects components from voltage mismatches and signal damage Compatible with Arduino, Raspberry Pi, ESP32, and other controllers Compact breakout design for fast prototyping and integration

SmartElex PCA9546 4-Channel I2C Multiplexer Compatible with TCA9546A SmartElex PCA9546 4-Channel I2C Multiplexer is designed to simplify communication management when working with multiple I2C devices that share the same address. This compact module helps prevent signal conflicts by allowing users to connect and control up to four separate I2C buses from a single master device. It’s an ideal solution for students, makers, engineers, educators, and startups who are building projects where multiple sensors or modules need to coexist without addressing limitations or communication errors. Compatible with popular development platforms like Arduino, Raspberry Pi, and ESP32, this PCA9546 I2C multiplexer works as a practical I2C bus expander for robotics, IoT systems, automation projects, and prototype development. It offers a stable, plug-and-play approach to expanding I2C networks, making it easy to integrate sensors, displays, and controllers into both simple and advanced builds. Whether you are creating a multi-sensor environment, debugging complex circuits, or scaling an existing project, this module provides clear routing and dependable performance to streamline development. Features: Enables connection of up to four independent I2C device channels Prevents address conflicts by isolating I2C buses when needed Based on PCA9546 IC and compatible with TCA9546A devices Ideal for expanding I2C networks in multi-sensor projects Works with Arduino, Raspberry Pi, ESP32, and similar controllers Simple control through I2C commands for channel selection

SmartElex RedBot - Line Follower Sensor The SmartElex RedBot Line Follower Sensor is an easy-to-use infrared line tracking sensor designed to detect contrasting lines on the floor for robot navigation. It helps users build robots that can follow black or white track lines by sensing reflected infrared light, making it ideal for students, hobbyists, educators, and beginners in robotics. This line follower sensor removes the complexity of designing a tracking circuit from scratch, making it a practical choice for classroom learning, STEM competitions, and project-based exploration. This IR sensor line follower is commonly used in DIY robots, autonomous navigation systems, automation prototypes, and line-following competitions where reliable tracking is essential. It works smoothly with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms, allowing easy integration and quick setup in existing projects. With stable performance and intuitive operation, the SmartElex RedBot Line Follower Sensor is well suited for prototyping, educational labs, and robotics builds requiring precise line tracking and direction control. Features: Infrared-based line detection for accurate track following Detects black or white line contrast for smooth navigation Simple design for beginner-friendly robotics and STEM projects Compatible with Arduino, Raspberry Pi, ESP32, and other controllers Compact module for easy mounting on small robot chassis Ideal for DIY robots, automation prototypes, and line-following competitions

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

SmartElex RS485 CAN HAT for Raspberry Pi The SmartElex RS485 CAN HAT for Raspberry Pi is a powerful Raspberry Pi communication expansion board that enables seamless data exchange using both RS485 and CAN protocols. This CAN bus interface module allows Raspberry Pi systems to communicate reliably with industrial equipment, automotive networks, and distributed IoT devices. Designed with signal isolation and precise electrical compatibility, it ensures stable, long-distance communication while integrating directly with the Raspberry Pi GPIO header for efficient and dependable system expansion. Features: Raspberry Pi supports both RS485 and CAN connectivity. High-speed CAN communication support Compatible with all 40-pin Raspberry Pi versions. Simple GPIO interface and power via Pi. Standard Raspberry Pi 40-pin GPIO header for Raspberry Pi boards. The reserved control header enables for communication with other control boards. Operating voltage: 3.3 volts CAN chip: MCP 2515 CAN transceiver: SN65HVD230. 485 transceiver: SP3485. CAN function, onboard CAN controller MCP2515 with SPI interface, and onboard transceiver SIT65HVD230DR. RS485 function, controlled via UART, half-duplex connection, automatic TX/RX control without programming, and an onboard transceiver SP3485.

SmartElex RV-8803 Real Time Clock Module Breakout The SmartElex RV-8803 Real Time Clock Module Breakout is a compact and reliable RV-8803 RTC Module designed for applications that demand accurate and stable timekeeping. Built around the factory-calibrated RV-8803 chip, it ensures precise time tracking with temperature compensation and extremely low power consumption. This real-time clock module features an enhanced I2C interface for smooth communication, along with multiple interrupt functions such as alarms, periodic updates, and countdown timers. It also includes an external event input for timestamping and a programmable clock output pin, making it ideal for IoT devices, data logging systems, and embedded electronics projects. Features: Temperature compensation is factory calibrated. High time accuracy. Wide operating voltage range (1.5 to 5.5 volts). I2C address: 0x32. Periodic Countdown Timer with Interrupt Function. Periodic Time Update Interrupt Function (in seconds and minutes). Alarms can be set for a specific weekday or date, as well as the hour and minute. External Event Input with Interrupt and Time Stamp functions. Programmable Clock Output pin for peripheral devices. The operating temperature range is -40 to +105°C.

SmartElex SX1268 433MHz E22-400T22S LoRa HAT for Arduino, Raspberry Pi The SmartElex LoRa HAT is a compact and reliable LoRa HAT designed to enable long-range wireless communication for embedded and IoT projects. Built around the SX1268 technology, this board helps users transmit data over long distances with low power consumption, solving common connectivity challenges in remote and distributed systems. It is well suited for students, makers, educators, engineers, and startups looking to build practical wireless solutions without complex setup. This SX1268 LoRa Module HAT is easy to integrate with popular platforms such as Arduino, Raspberry Pi, and STM32, making it ideal for IoT nodes, robotics communication, automation systems, and rapid prototyping. Its stable wireless performance and simple UART interface allow developers to focus on application logic rather than hardware complexity. Whether used for smart agriculture, monitoring systems, or custom IoT networks, this LoRa HAT offers dependable communication and smooth integration for real-world projects. Features: Supports long-range wireless communication using LoRa technology Built around the reliable SX1268 LoRa module for stable data transmission Compatible with Arduino, Raspberry Pi, and STM32 platforms Low power operation suitable for battery-powered IoT projects UART interface for simple and quick integration Ideal for IoT, automation, remote monitoring, and prototyping applications

SmartElex TXB0104 Logic Level Converter – Single Supply The SmartElex TXB0104 Logic Level Converter – Single Supply is a compact module designed to safely shift voltage levels between different digital systems. This logic level converter allows smooth communication between devices operating at 1.8V, 3.3V, and 5V without risking signal damage or instability. It is ideal for students, hobbyists, engineers, educators, and startups who need a hassle-free way to connect sensors, modules, and microcontrollers with mismatched voltage standards in projects ranging from simple prototypes to more advanced electronics systems. With support for bidirectional data flow, this module functions as a reliable 3.3V to 5V level shifter and general-purpose 4-bit bidirectional voltage level translator, making it a great fit for robotics, IoT networks, home automation, and embedded development. It integrates smoothly with platforms like Arduino, Raspberry Pi, ESP32, and other microcontroller boards, offering an easy way to ensure signal compatibility during development or deployment. Whether you’re experimenting in a lab or building final hardware, this board helps maintain safe and consistent communication across your circuit. Features: Shifts logic signals safely between 1.8V, 3.3V, and 5V systems TXB0104 IC enables 4-bit bidirectional level translation Supports both input and output direction automatically Ideal for I2C, SPI, UART, GPIO, and general digital interfaces Works with Arduino, Raspberry Pi, ESP32, and similar controllers Compact module for easy use in prototyping and embedded projects

SmartElex u-blox MAX-M10S GNSS Module Breakout The SmartElex u-blox MAX-M10S GNSS Module Breakout is a compact, ultra-low power GNSS module designed for precision positioning in battery-operated applications such as asset trackers, wearables, and IoT devices. Powered by the u-blox MAX-M10S GNSS receiver, it supports multi-constellation tracking including GPS, GLONASS, BeiDou, and Galileo while consuming less than 25 mW in continuous tracking mode. u-blox Super-S technology enhances RF sensitivity, enabling accurate location fixes even with small antennas and in non-line-of-sight conditions. An on-board rechargeable backup battery maintains the RTC and GNSS orbit data for up to 5 hours, reducing time-to-first-fix from a ~24 s cold start to a ~1 s hot start. The board includes an SMA connector for external antennas, 0.1″ spaced pins for breadboard use, and a UART interface compatible with standard serial adapters. Configuration options such as baud rate, update rate, spoofing detection, and interrupts can be easily managed using the u-blox u-center software, making this low power GNSS module a reliable choice for high-accuracy positioning applications. Note: The MAX-M10S's I2C address is 0x42, which is software programmable. A multiplexer/Mux is required to communicate with many MAX-M10S boards with the same address on a single bus. Features: 1.5m Horizontal Accuracy 10Hz Max Update Rate Hot: 1sMax Altitude: 80,000m Max G: ≤4 Max Velocity: 500m/s Velocity Accuracy: 0.05m/s Heading Accuracy: 0.3 degrees Time Pulse Accuracy: 30ns 3.3V VCC and I/O Current Consumption: ~6mA to ~25mA (varies with constellations and tracking state) Supports NMEA and UBX protocols over I2C or UART interfaces