7Semi MCP9808 I2C Temperature Sensor Breakout

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

7Semi PCA9306 I2C Bidirectional Voltage Level Translator Breakout Board The 7Semi PCA9306 I2C Bidirectional Voltage Level Translator Breakout Board is a compact and efficient PCA9306 voltage level translator designed to safely interface I2C and SMBus devices operating at different logic levels. Supporting voltage translation from 1.2V to 5.0V, this board enables seamless communication between low-voltage sensors and higher-voltage microcontrollers without manual direction control. As a dependable I2C logic level converter, it delivers minimal signal delay and stable bidirectional data flow, making it ideal for robotics, industrial controllers, embedded systems, and DIY electronics projects requiring precise mixed-voltage I2C communication. Allowable Voltage Level Translation The breakout can transfer voltages ranging from 3.3V to 5V. VREF1 (Low Side) VREF2 (High Side) 1.2V 1.8V, 2.5V, 3.3V, 5V 1.8V 2.5V, 3.3V, 5V 2.5V 3.3V, 5V 3.3V 5V Features: Wide Voltage Range Support: Operates between 1.2V and 5.0V, accommodating a wide range of components. Dual Bidirectional Channels: Translates both the SDA and SCL lines for complete I2C compatibility. I2C and SMBus Protocol Support: Fully compatible with regular and fast-mode I2C devices, as well as SMBus peripherals. No Direction Pins Required: Signal direction is automatically detected for easier design. Low propagation delay: A delay of less than 1.5ns maintains data integrity at high speeds. 5V Tolerant I/O Ports: Securely links 5V signals to lower voltage devices. Compact and simple to use: ideal for embedded applications, prototyping, and compact systems.

SmartElex 3.2-inch TFT LCD Resistive Touch Display 240×320 SmartElex 3.2-inch TFT LCD Resistive Touch Display (240×320) is designed to bring both visual output and touch interaction to embedded projects. This 3.2-inch TFT display offers a spacious interface for displaying menus, sensor data, graphics, and control screens, making it a practical choice for students, hobbyists, engineers, educators, and startups. Its resistive touch panel allows users to interact directly with the screen, removing the need for external buttons and providing an intuitive way to navigate project functions or settings. Compatible with Arduino, Raspberry Pi, ESP32, and various microcontroller platforms, this 240×320 TFT LCD display is well suited for IoT dashboards, robotics control stations, automation systems, handheld devices, and interactive prototypes. The combination of touch input and a bright, detailed display helps simplify project design while making interfaces feel more professional. With straightforward connectivity and reliable performance, it supports learning, experimentation, and product development where touch-enabled control and visual feedback are essential. Features: 3.2-inch 240×320 TFT LCD with resistive touch input Provides both display output and interactive touch control Ideal for creating on-screen menus, dashboards, and UI panels Compatible with Arduino, Raspberry Pi, ESP32, and similar boards SPI / parallel interface options for flexible connectivity Suitable for IoT panels, robotics interfaces, automation, and DIY devices

Cytron URC10 Sumo Robot Controller R1.1 Arduino-Compatible Motor Driver Board The Cytron URC10 Sumo Robot Controller R1.1 is a powerful all-in-one robotics control board designed specifically for competitive sumo robot building. It combines an Arduino-compatible ATmega328P microcontroller, a dual 10A motor driver, and dedicated interfaces for ultrasonic, digital, and analog sensors - making it one of the most efficient and beginner-friendly solutions for robot builders. With support for 8V–25V DC motors, 30A peak current, and high-frequency PWM control, this controller ensures strong pushing power and fast maneuverability for 3kg sumo robot competitions. Cytron engineered the URC10 to simplify robot development by integrating essential hardware like built-in test buttons, motor output LEDs, onboard 5V/3.3V regulators, and a Micro-USB interface for programming. Whether you're designing autonomous systems, competitive sumo robots, or experimenting with robotics, the Cytron URC10 offers reliable performance, stable motor control, and easy sensor expansion for both beginners and advanced makers. Features: Designed specifically for up to 3kg sumo robot applications. Built around the Arduino-compatible ATmega328P microcontroller with Optiboot Bootloader. Integrated dual 10A continuous motor driver (30A peak per channel) for high-power brushed DC motors. Supports 8V–25V motor voltage for a wide range of robot motors. Features current limiting at 30A per channel for safe operation under heavy loads. Includes motor test buttons for quick verification without uploading code. Motor output status LEDs for easier debugging and inspection. Compatible with sign-magnitude and locked-antiphase PWM, supporting up to 20kHz frequency. Onboard 5V, 1A regulator and 3.3V, 500mA regulator for powering sensors and modules. Dedicated pins for motors, ultrasonic sensors, digital I/O, and analog sensors. Includes USB Micro-B + CH340 USB-serial system for easy programming upload. Provides 1× I2C port for additional modules. Compact design with dimensions 75.57mm × 99.7mm. Note: Reverse polarity protection is not included.

SmartElex 12V 7A Single Channel Power Relay Module The SmartElex 12V 7A Single Channel Power Relay Module is a dependable switching solution designed to control higher-power electrical loads using low-voltage control signals. It helps protect microcontrollers and sensitive electronics by providing proper isolation between the control circuit and the load side. This module is suitable for students, makers, engineers, educators, and startups who are working on control systems, automation projects, or embedded applications that require safe and reliable power switching. This single channel power relay module is ideal for robotics, IoT systems, home automation, and industrial control projects where devices such as motors, lights, pumps, or other electrical equipment need to be switched reliably. It can be easily interfaced with popular development platforms like Arduino, Raspberry Pi, and ESP32, making it convenient for both prototyping and final product integration. The simple design and consistent performance allow users to build stable control systems without added complexity. Features: Single channel power relay module for high-load switching Operates on 12V, suitable for automation and control systems Supports up to 7A load current for power applications Electrical isolation between control side and load side for safety Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Compact and durable design for easy integration into projects

SmartElex FT232 Type C, USB To UART (TTL) Communication Module The SmartElex FT232 Type C USB to UART (TTL) Communication Module is a high-performance communication module designed to bridge USB systems with TTL-based serial devices smoothly and reliably. Built around the genuine FT232RL USB serial interface board, it ensures stable data transfer and wide driver support across multiple operating systems. The USB-C interface offers durability and modern connectivity, while the onboard jumper allows precise selection between 3.3V and 5V TTL output, making it suitable for Arduino, ESP, Raspberry Pi, and other embedded platforms. With clear LED indicators for transmission, reception, and power, this USB to UART TTL converter module simplifies debugging, firmware flashing, and serial communication tasks in both development and production environments. Applications: Programming and Debugging Microcontrollers Serial connection between embedded systems USB to TTL converter for different devices Data logging and monitoring. Integration of IoT devices Cautions: To avoid damage, ensure that the voltage is set correctly using the onboard jumper. This module is intended for TTL level signals; do not connect directly to RS232 ports. Avoid dampness and static discharge. Features: Original FTDI FT232RL chipset for dependable and steady UART connectivity USB Type-C connector improves compatibility and supports contemporary devices. Supports 3.3V and 5V TTL logic levels via jumper selection. Fast data transfer rates of up to 3 Mbps Real-time LED status indicators for TXD, RXD, and power monitoring Compact design is perfect for embedded system integration. Compatible with various operating systems, including Windows, macOS, Linux, Android, and Windows CE. USB-powered with a maximum output current of 500 mA. Plug-and-play capabilities for quick setup and deployment. Suitable for prototyping, debugging, and data logging applications.

7Semi BMA400 3-Axis Digital Accelerometer Breakout Board STEMMA QT / Qwiic The 7Semi BMA400 3-Axis Digital Accelerometer Breakout Board STEMMA QT / Qwiic features the highly precise BMA400 3-axis accelerometer, delivering accurate 3D acceleration measurements with 12-bit digital resolution and 0.001g sensitivity. Supporting selectable measurement ranges of ±2g, ±4g, ±8g, and ±16g, this ultra-low power sensor can detect tilt, orientation, tap/double-tap, and perform step counting with activity recognition—making it perfect for wearable devices and battery-sensitive applications. Its Qwiic/STEMMA QT connector allows effortless plug-and-play integration, while dual power support (3.3V/5V) and flexible I2C/SPI interfaces ensure compatibility with a wide range of microcontrollers. With two configurable interrupt pins and a compact design, this breakout board is ideal for robotics, motion sensing, vibration monitoring, and other STEM projects requiring precise and reliable acceleration data. Features: 3.3 and 5 volt power supply I2C and SPI communication, with 2 interrupt pins. Digital resolution: 12 bits. Measurement range: +- 2g, 4g, 8g, 16g. BMA400 3-Axis Digital Accelerometer Breakout Pinouts:

Cytron Maker UNO X – Arduino Compatible Development Board for Classroom The Cytron Maker UNO X is a beginner-friendly, classroom-ready Arduino-compatible development board designed to simplify STEM education. Equipped with built-in LEDs on every digital pin, a programmable push button, a piezo buzzer, and a powerbank-friendly design, it eliminates messy wiring and allows students to start coding instantly. This board is ideal for Arduino beginners, school STEM labs, coding clubs, training centers, and anyone learning microcontroller basics. With plug-and-play functionality and seamless compatibility with Arduino IDE, it delivers a smooth learning experience for educators and students alike. Created with the needs of teachers in mind, the Cytron Maker UNO X features an onboard half-size breadboard and perfboard for quick prototyping, making it easy to build hands-on electronics projects right out of the box. Powered by the ATmega328P, and complete with essential interfaces like UART, SPI, I2C, PWM pins, and analog inputs, this board is perfect for exploring coding, electronics, and robotics in a structured classroom setup. Whether for STEM workshops, school projects, or Arduino training programs, Maker UNO X provides an engaging, frustration-free learning experience. Features: Fully Arduino UNO-compatible board designed specially for classrooms and STEM beginners. Built-in LED indicators on every digital pin, allowing students to visualize code output instantly without wiring. Includes piezo buzzer, programmable push button, and powerbank-friendly operation for portable projects. Comes with an onboard perfboard prototyping area and a half-size breadboard to simplify hands-on experiments. Powered by the reliable ATmega328P microcontroller with 16MHz clock speed and full support in Arduino IDE. Offers 20 digital I/O pins, 6 PWM pins, 6 analog inputs, and communication interfaces (UART, SPI, I2C). Features 32KB Flash, 2KB SRAM, 1KB EEPROM, making it ideal for beginner programming and small-scale electronics projects. Uses a USB Micro-B interface with CH9340 USB-UART chip (note: not supported on Windows 7). Designed by Cytron to support educators - ensures faster learning with fewer wiring issues and more hands-on coding.

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

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 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

ATMEGA328P SMD IC for Arduino Nano/UNO – AVR Microcontroller The ATMEGA328P SMD IC (ATMEGA328P-AU) is a high-performance 8-bit AVR microcontroller widely used in Arduino Nano and Arduino Uno boards. Designed with picoPower technology, this SMD version includes 32KB ISP Flash, 2KB SRAM, 1KB EEPROM, multiple timers, USART, SPI, and I2C support. Making it ideal for embedded electronics, DIY projects, automation systems, and IoT applications. Its compact SMD package makes it suitable for custom PCB designs and small-form-factor projects. This microcontroller is fully compatible with Arduino IDE, making programming easy using an AVR programmer or bootloader. With features like 23 GPIO pins, 6-channel 10-bit ADC, watchdog timer, and flexible power-saving modes, the ATMEGA328P SMD IC delivers powerful performance while maintaining low power consumption. Whether you're building a new Arduino-compatible board or repairing an existing one, this IC provides reliability, stability, and seamless integration. Features: ATMEGA328P-AU SMD AVR microcontroller used in Arduino Nano/UNO boards. Supports 32KB Flash memory with read-while-write capability, 1KB EEPROM, and 2KB SRAM. Fully compatible with Arduino IDE; can be programmed using an AVR programmer. Offers 23 GPIO pins, 3 timers/counters, watchdog timer, and hardware serial communication. Integrated SPI, I2C (TWI), and USART interfaces for seamless connectivity. Operates on 1.8V to 5.5V, suitable for low-power and battery-based projects. 6-channel 10-bit ADC (8-channel in TQFP package) for accurate analog sensing. SMD design ideal for custom PCBs, compact electronics, and embedded projects.

7Semi DC Buck Converter Breakout 3.3V 2A Out (AP62301) (BO-10131) The 7Semi DC Buck Converter Breakout 3.3V 2A Out (AP62301) is a compact power module that converts higher DC voltages into a stable 3.3V output with up to 2A current. It accepts a wide range of input voltages, making it useful for powering low-voltage electronics from batteries, adapters, and other DC sources. This makes it ideal for projects that require a reliable 3.3V supply. Built using an efficient synchronous buck converter design, this board delivers dependable power with minimal energy loss and low heat output. The small form factor allows easy integration into your electronics builds, especially space-constrained and portable systems. Whether you’re working on IoT devices, embedded controllers, or sensor systems, this converter provides a simple and efficient power solution for your 3.3V needs. Features: Provides a stable 3.3V output with up to 2A continuous current Accepts a wide DC input voltage range for flexible power sources High-efficiency synchronous buck converter design Low heat generation for efficient and safe power delivery Compact breakout board for easy integration and prototyping Ideal for IoT devices, embedded systems, and battery-powered projects Suitable for powering microcontrollers, sensors, and communication modules

Cytron Maker Pi RP2040 – Robotics Controller Board with Raspberry Pi The Cytron Maker Pi RP2040 is a compact, beginner-friendly robotics controller board powered by the Raspberry Pi RP2040 microcontroller. Designed for DIY robotics, automation, and motion-control projects, this board integrates a dual-channel DC motor driver, four servo ports, and seven Grove connectors - giving makers everything they need to build robots without complex wiring. With compatibility across CircuitPython, MicroPython, C/C++, and even the Arduino ecosystem, this board ranks among the best RP2040 robotics controllers for students, hobbyists, and educators. Built for convenience, the Maker Pi RP2040 supports multiple power input options (USB, LiPo battery, or VIN), includes onboard functional test buttons, and features status LEDs for easy debugging. The preloaded demo code lets you start controlling motors, playing melodies, and testing GPIOs right out of the box. Whether you are exploring Raspberry Pi’s RP2040 ecosystem or building an advanced robot, the Cytron Maker Pi RP2040 robot controller offers exceptional versatility, ease of use, and reliable motor-driving performance. Features: Powered by the Raspberry Pi RP2040 dual-core Arm Cortex-M0+ processor. Includes dual-channel DC motor driver and four servo motor ports for robotics. Seven Grove ports support digital, analog, I2C, SPI, and UART expansion. Preloaded with CircuitPython for easy plug-and-play coding. Supports USB 5V, LiPo 1-cell battery, or 3.6–6V VIN input with automatic switching. Built-in LiPo charging circuit with safety protections. Onboard piezo buzzer, RGB LEDs, GPIO test LEDs, and push buttons. Quick-test buttons and motor output LEDs for immediate motor testing. Fully compatible with the Raspberry Pi Pico ecosystem, MicroPython, C/C++, and Arduino cores. Includes LEGO-compatible mounting holes and M3 mounting points. Board Layout: Dimension:

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.