SmartElex USB-C Serial Basic Converter and CH340C IC Breakout Module

SmartElex 5V 3A 4 Channel Signal Relay Module The SmartElex 5V 3A 4 Channel Signal Relay Module is a compact and reliable 4 Channel Relay Module designed to control four independent medium-power loads with precision. Powered as a 5V relay module, it integrates high-quality JY4100F-S-DC5V-C relays, each capable of switching up to 3A at 120V AC or 24V DC. With dedicated trigger inputs and LED status indicators for every channel, it allows easy monitoring and accurate switching. This module directly interfaces with popular microcontrollers such as Arduino, ESP8266, and Raspberry Pi, making it ideal for IoT, home automation, and embedded control applications where safety, isolation, and consistent performance are essential. Applications: Home automation (controlled lights, fans, and locks) Industrial machine control IoT multi-device projects. Robotics and Motor Control Security systems and alarms. Cautions: Always utilize a properly regulated 5V power supply. Avoid exceeding the rated load capacity. Provide proper isolation for AC loads. Store the module in a dry, clean place. Features: Four-channel relay module allows for independent control of four devices. Operates at 5V DC and has an active LOW/HIGH trigger. Each relay can handle up to 3A at 120V AC or 24V DC. Compatible with Arduino, ESP8266, Raspberry Pi, and more platforms. Each channel has its own set of LED indicators. Fast switching: ≤10 ms operation and ≤5 ms release time. Low contact resistance (≤100 mΩ) ensures effective operation. The total power consumption is around 1.44W over four channels. High insulation resistance and dielectric strength are essential for safety. Wide operational temperature range (-40°C to +85°C).

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.

5V WiFi Smart Relay Module for IoT & DIY Projects The 5V WiFi Relay Module is a smart control board that lets you switch electrical devices on and off using a WiFi connection. It works with standard 5V power and can be connected to home networks, allowing remote control of lights, fans, appliances, and other devices through your smartphone or automation system. This module is designed for easy integration with DIY electronics and smart home projects. It provides reliable switching performance and can be used in both residential and hobby automation setups. Whether you’re building a custom smart switch or adding wireless control to your gadgets, the 5V WiFi Relay Module offers a simple and flexible way to make your devices connected and controllable over WiFi. Features: Operates on 5V power supply for easy integration Enables wireless ON/OFF control of electrical devices over WiFi Suitable for smart home and IoT automation projects Supports remote switching via mobile app or automation system Reliable relay-based output for controlling loads safely Compact module design for DIY electronics and embedded systems Ideal for controlling lights, fans, pumps, and appliances

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 12V 3A 8 Channel Signal Relay Module The SmartElex 12V 3A 8 Channel Signal Relay Module is a reliable control solution designed to switch multiple electrical devices using low-power control signals. It allows users to safely manage higher-voltage or higher-current loads without directly connecting them to sensitive control circuits. This module is suitable for students, makers, engineers, educators, and startups working on embedded systems, automation projects, and control applications that require dependable multi-channel switching. This 8-channel relay module is ideal for robotics, IoT systems, home and industrial automation, and advanced prototyping where several devices need to be controlled independently. It can be easily interfaced with popular platforms such as Arduino, Raspberry Pi, and ESP32 to control lights, motors, pumps, relays, or other external equipment. The straightforward design and consistent performance make it easy to integrate into both experimental setups and finished products, supporting safe and efficient control across a wide range of applications. Features: 8-channel relay module for controlling multiple devices independently Operates on 12V, suitable for automation and control systems Supports up to 3A load current per relay channel Electrical isolation between control signals and load circuits Compatible with Arduino, Raspberry Pi, ESP32, and other controllers Compact board design with LED indicators for channel status

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

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

SmartElex DRV8825 Stepper Motor Driver Module with Aluminum Heat Sink The SmartElex DRV8825 Stepper Motor Driver Module with Aluminum Heat Sink is a compact and efficient solution for controlling bipolar stepper motors with high precision. Built around the trusted TI DRV8825 IC, it supports microstepping up to 1/32 step, enabling smoother motion and finer positional accuracy in applications like 3D printing, CNC machining, and robotics. The module can deliver up to approximately 2.2A peak current with proper cooling, while the integrated aluminum heat sink ensures effective thermal management during continuous operation. Its adjustable current limiting feature protects the motor and driver, improving overall system reliability. With a simple STEP and DIR interface, the module easily integrates with popular platforms such as Arduino, ESP32, and Raspberry Pi, making it an excellent choice for both DIY enthusiasts and professional motion control systems. Features: Based on the TI DRV8825 microstepping bipolar stepper motor driver. Onboard adjustable current limiting potentiometer Supports microstepping up to a 1/32 step. Simple STEP/DIR control interface. Thermal shutdown, overcurrent, and undervoltage protection. Works with 3.3 V and 5 V logic systems. Compact breakout board with an aluminum heat sink for improved cooling.

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.

Cytron UNO – Arduino UNO Compatible Board with USB Micro-B The Cytron UNO is a fully Arduino UNO compatible development board built with the reliable ATmega328P microcontroller, making it ideal for beginners, students, hobbyists, and electronics enthusiasts. Designed to offer the same functionality as the Arduino UNO R3, the Cytron UNO includes 14 digital I/O pins, 6 PWM outputs, 6 analog inputs, UART, SPI, I2C, and full R3 shield compatibility. With USB Micro-B connectivity, you can easily program the board using the same cable used for Android phones and power banks - making it more convenient and cost-friendly for modern makers. Cytron further enhances the board with a stronger onboard voltage regulator, improved power handling, and repositioned LEDs on the edge for better visibility, even when a shield is attached. The CT-UNO also includes extra standard pads for custom shields, an FTDI-based USB interface for stable programming, and robust DC input support from 7V to 15V. Whether you’re building IoT prototypes, robotics, embedded systems, or learning coding fundamentals, the Cytron UNO delivers reliability, ease of use, and full compatibility with the entire Arduino ecosystem. Features Powered by SMD ATmega328P with Optiboot (UNO R3) bootloader for fast programming. USB programming enabled by stable FTDI FT231X chip for improved reliability. Supports DC 7–15V input with upgraded onboard voltage regulator for higher output current. Offers 14 digital I/O pins, including 6 PWM outputs, and 6 analog inputs for versatile projects. Fully Arduino UNO R3 shield compatible with ISP header and broken-out SDA, SCL, IOREF pins. Uses USB Micro-B socket, compatible with standard Android phone cables. LEDs relocated to board edge for clear visibility during development. Includes additional 2.54mm pads for creating custom shields. White PCB design with clean layout and Cytron build quality. Dimensions

7Semi ENS160 Air Quality Sensor I2C Probe (ES-12183) The 7Semi ENS160 Air Quality Sensor I2C Probe (ES-12183) is a compact and ready-to-use air quality sensing module built to measure indoor environmental conditions. It uses the advanced ENS160 multi-gas sensor to detect volatile organic compounds (VOCs) and other indoor pollutants, helping you understand the quality of the air around you. The probe provides clean, processed digital outputs that make monitoring easy. This sensor communicates over a standard I2C interface and works at 3.3 V, making it simple to connect to popular controllers like Arduino, ESP32, or Raspberry Pi. With features like long-term stability, low power use, and reliable performance across a range of temperatures and humidity levels, it’s a great choice for smart home systems, air purifiers, HVAC monitoring, and other environmental projects. Features: Advanced ENS160 multi-gas sensor for indoor air quality monitoring Detects VOCs and air quality levels for healthier environments I2C digital interface for simple integration with microcontrollers Factory-calibrated sensor for reliable and consistent readings Low power consumption, suitable for continuous monitoring Compatible with Arduino, ESP32, Raspberry Pi, and IoT systems 7Semi I2C Wire Color Code

7Semi 0.5mm FFC FPC Connector Breakout Board (30 Pin) The 7Semi 0.5mm FFC FPC Connector Breakout Board (30 Pin) is engineered to simplify interfacing fine-pitch flat cables with standard prototyping setups. Built around a 30-pin, 0.5mm pitch ffc fpc connector, this board features a front-flip, bottom-contact SMT connector with a precise 2mm height, ensuring secure cable insertion and stable signal transmission. The breakout converts the fine-pitch FFC/FPC signals into 0.1″ spaced dual-row output pins, making it fully compatible with breadboards and development boards. With clearly marked pin numbers and reliable PCB soldering, this breakout board is ideal for prototyping, testing, and integrating LCDs, touch panels, embedded systems, and custom electronic interfaces where accuracy and connection reliability are critical. Features: 0.5mm pitch FPC FFC connector with 30 pins and a 2mm front flip bottom contact. speeds up the prototyping process. Out pins with traces leading to double rows of 0.1" spaced holes. Compatible pin spacing for breadboard application. Easily recognizable pin numbers Size: 40 x 25 mm

7Semi BME688 Environmental Sensor Nano Breakout with 2.54mm Pitch Header The 7Semi BME688 Environmental Sensor Nano Breakout with 2.54mm Pitch Header is a versatile and high-precision environmental sensor designed for modern monitoring applications. Built around Bosch’s advanced BME688, it accurately tracks temperature, humidity, air pressure, and gas levels, helping you gain meaningful insights into environmental conditions. Its compact nano form factor and I2C interface make integration simple with Arduino, Raspberry Pi, and other development boards. Whether you’re building a smart home system, an industrial monitoring setup, or an environmental research project, this environmental monitoring sensor delivers dependable performance in a user-friendly design. Features: AI-Enhanced Gas Sensing: Identifies dangerous gasses with exceptional accuracy. Comprehensive Monitoring: A single sensor measures numerous essential environmental factors. Flexible Interface: I2C connectivity enables seamless interaction with microcontrollers. Compact design: The nano breakout board is ideal for projects with limited space. 3.3V Operating Voltage: Suitable for a wide range of development boards. Gas sensor sensitivity, selectivity, and data rate can all be adjusted to meet your individual application requirements.

SmartElex CP2102 Type C, USB To UART (TTL) Communication Module The SmartElex CP2102 module is a compact and reliable communication module designed to convert USB-C signals into UART (TTL) serial communication. It helps users easily connect microcontrollers and development boards to a computer for programming, debugging, and serial monitoring, removing the need for complex interfaces. This module is well suited for students, makers, educators, engineers, and startups who need a dependable USB to serial solution for everyday electronics work. This USB to UART TTL converter module works smoothly with popular platforms such as Arduino, Raspberry Pi, and ESP32, making it useful for robotics, IoT development, automation systems, and rapid prototyping. Its plug-and-play USB-C design allows quick setup and stable data communication, saving time during development and testing. Whether used for firmware upload, device configuration, or serial communication, this module offers reliable performance and easy integration for practical embedded projects. Applications: Programming and debugging microcontrollers Serial communication with embedded systems USB to TTL conversion for compatible devices Data logging, testing, and monitoring tasks Cautions: Ensure the correct voltage is selected using the onboard jumper to avoid damage Designed only for TTL-level signals; do not connect directly to RS232 interfaces Avoid exposure to moisture and protect the module from static discharge Features: USB-C to UART (TTL) communication module for serial interfacing Based on CP2102 chipset for stable and reliable data transfer Plug-and-play design for quick setup with a computer Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Ideal for programming, debugging, and serial monitoring tasks Suitable for robotics, IoT, automation, and DIY electronics projects

SmartElex 12V 10A Single Channel Power Relay Module The SmartElex 12V 10A Single Channel Power Relay Module is a reliable switching solution designed to control high-power electrical loads using low-voltage control signals. It helps safely operate devices that draw higher current without directly connecting them to sensitive control circuits. This module is suitable for students, makers, engineers, educators, and startups who are working on electronics projects, automation systems, or prototypes that require dependable and safe power switching. This single channel power relay module is widely used in robotics, IoT applications, home automation, and industrial control projects where motors, lights, pumps, or appliances need to be switched on and off reliably. It can be easily interfaced with popular platforms such as Arduino, Raspberry Pi, and ESP32, making integration simple for both learning projects and real-world systems. The sturdy design and consistent performance make it a practical choice for prototyping as well as final deployment in power control applications. Features: Single channel power relay module for high-current load switching Operates on 12V, suitable for automation and control applications Supports up to 10A load current for power devices Electrical isolation between control and load circuits for safety Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Compact and durable design for easy integration