ESP32 LoRa with 0.96 Inch Blue OLED Display ( Type C- Connector)

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 STM32G030K6T6 STM32 Development Board The 7Semi STM32G030K6T6 STM32 development board is built around the STM32G0 series microcontroller featuring an ARM Cortex-M0+ core running up to 64 MHz, delivering reliable performance with low power consumption. Designed for rapid prototyping and embedded development, it provides essential peripherals such as GPIOs, ADC, timers, and serial communication interfaces including UART, SPI, and I2C. This board’s main core function is to enable efficient control, data processing, and peripheral management in applications like IoT devices, consumer electronics, and industrial automation. With easy integration into standard STM32 development tools, it serves as a dependable platform for development, testing, and real-world deployment. Features: High-Performance STM32 Chip: STM32G030K6 with 64 MHz core, 32K Flash, and 8K RAM for maximum computing power. Integrated Memory Protection and Enhanced I/Os Onboard 8K SRAM and up to 64K Flash memory with numerous safeguards, adaptable I/Os, and a range of communication interfaces (I2Cs, SPIs, and USARTs). Comprehensive Peripheral Support: Includes a 12-bit ADC with up to 19 channels, an advanced PWM timer, 16-bit timers, and watchdog timers to ensure system stability. USB-C Power Supply and Debugging Interface: USB-C compatibility allows for efficient power management, while the SWD debugging interface allows for seamless emulator connections. Onboard Control and Indicator Lights: Includes a power indicator, programmable LED, and reset button for real-time status information and simple user control.

SmartElex Sound Detection Sensor The SmartElex Sound Detection Sensor is a compact and efficient sound sensor module designed to detect sound presence and measure sound intensity with precision. Built around the LM386 audio amplifier, it provides both analog (AOUT) and digital (DOUT) outputs, making it suitable for a wide range of applications—from simple sound-triggered actions to detailed audio level monitoring. Operating smoothly between 3.3V and 5.3V, this sound sensor Arduino compatible module integrates easily with popular development boards such as Arduino, STM32, and Raspberry Pi. Its low power consumption, small form factor, and included 4-pin cable make it perfect for sound-activated projects, noise detection systems, smart devices, and interactive electronics where reliable audio sensing is required. Features: LM386 audio amplifier for a powerful sound signal enhancement. Detect low-level sounds with 200× amplification. Wide voltage range: 3.3 to 5.3 volts Dual outputs: analog (AOUT) and digital (DOUT). Low power consumption, suitable for embedded systems. Adjustable gain using external components Compact and lightweight; breadboard-friendly. Simple integration with Arduino, STM32, and more.

SmartElex TPS61040 12V Boost Converter Module SmartElex TPS61040 12V Boost Converter Module is designed to step up lower DC voltages to a stable 12V output, making it an ideal solution when your circuit requires a higher operating voltage than the available power source. This 12V boost converter is especially useful for students, hobbyists, engineers, educators, and startups working with battery-powered electronics or low-voltage microcontroller projects. It solves the challenge of powering 12V devices from compact power supplies like 3V or 5V inputs, without needing bulky transformer-based solutions. As a 3V to 12V boost converter, it integrates easily with platforms like Arduino, Raspberry Pi, ESP32, and other development boards, making it highly suitable for robotics, IoT nodes, portable gadgets, automation circuits, and prototyping environments. Its compact design and reliable output make it a practical choice for powering sensors, actuators, communication modules, and small peripherals that need a 12V line. This module helps builders maintain efficiency and portability in their designs while ensuring stable performance across a range of real-world applications. Features: Steps up lower DC input to a stable 12V output Based on the TPS61040 high-efficiency boost converter IC Enables 12V operation from 3V, 5V, or other low-voltage sources Ideal for battery-powered and portable electronics Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Suitable for sensors, small modules, IoT devices, and automation projects

SmartElex PL2303 USB To UART Communication Converter Module The SmartElex PL2303 module is a reliable USB to UART converter designed to make serial communication simple and accessible for embedded projects. It helps users connect microcontrollers and development boards to a computer through USB, solving common debugging and programming challenges. This USB to Serial TTL Module is ideal for students, makers, educators, engineers, and startups who need a dependable interface for testing, flashing, and communicating with serial devices. This 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 design allows quick setup without complex wiring, helping users save time during development and troubleshooting. Whether used for firmware upload, serial monitoring, or device communication, this converter offers stable performance and easy integration for everyday electronics projects. Features: Reliable USB to UART converter for serial communication Based on the PL2303 chipset for stable data transfer Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Plug-and-play operation for quick setup and use Ideal for programming, debugging, and serial monitoring Suitable for robotics, IoT, automation, and DIY electronics projects

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

7Semi SHT45 and SGP41 Environmental Sensor Breakout The 7Semi SHT45 and SGP41 Environmental Sensor Breakout is a versatile environmental sensor module designed for accurate and simultaneous measurement of temperature, humidity, and air quality. By combining high-precision SHT45 sensing with the advanced SGP41 air quality sensor on one compact board, it simplifies environmental monitoring for a wide range of projects. Whether you’re building smart home systems, indoor air quality stations, or industrial monitoring tools, this sensor package provides reliable real-time data where it matters most. Offering stable performance with easy digital communication interfaces, this breakout is ideal for both beginners and advanced makers. Its compatibility with popular microcontrollers and development platforms makes integration seamless for IoT applications, HVAC control, weather stations, and wellness monitoring systems. Students, hobbyists, and professionals alike will appreciate the module’s precision, low power use, and plug-and-play ease for projects requiring dependable environmental sensing. Features: SHT45 High accuracy with ±1.0% RH and ±0.1°C temperature precision Built on advanced CMOSens technology for improved accuracy and low power use Optimized for standard SMD assembly, suitable for high-volume production SGP41 Digital VOC sensor designed for indoor air quality monitoring Patented CMOSens technology with temperature-controlled micro-hotplate I²C interface for easy integration with microcontrollers Humidity compensation for accurate air quality readings Compatible with VOC algorithms for immediate IAQ evaluation

SmartElex 12V 3A 2 Channel Signal Relay Module The SmartElex 12V 3A 2 Channel Signal Relay Module is a compact and dependable solution for controlling multiple electrical loads using low-power control signals. It allows users to switch devices safely without directly handling higher voltages or currents, helping protect sensitive control circuits. This relay module is suitable for students, makers, engineers, educators, and startups working on embedded systems, control projects, and automation setups that require reliable dual-channel switching. This 2-channel relay module is ideal for robotics, IoT applications, home and industrial automation, and general prototyping where two devices need to be controlled independently. It can be easily interfaced with popular development platforms such as Arduino, Raspberry Pi, and ESP32, making it simple to control lights, motors, pumps, alarms, or other external equipment. The straightforward design and stable performance make it easy to integrate into both experimental projects and finished products, supporting consistent and safe operation. Features: Dual-channel relay module for controlling two devices independently Operates on 12V, suitable for automation and control systems Supports up to 3A load current per channel Provides electrical isolation between control and load circuits Compatible with Arduino, Raspberry Pi, ESP32, and other controllers Compact design with LED indicators for easy status monitoring

SmartElex AM312 PIR Motion Sensor The SmartElex AM312 PIR Motion Sensor is a compact passive infrared sensor designed to detect human motion by sensing changes in infrared radiation. It helps automate systems by triggering actions only when movement is detected, making projects more energy efficient and responsive. This sensor is well suited for students, makers, engineers, educators, and startups who are working on electronics projects that require reliable motion detection in a small, low-power form factor. This PIR motion sensor is ideal for robotics, IoT devices, security systems, and automation projects, especially where battery-powered operation is important. It can be easily interfaced with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick integration into prototypes and functional systems. Common applications include motion-activated lighting, smart alarms, occupancy detection, and low-power IoT monitoring solutions, where stable performance and simple integration are essential. Features: Compact PIR sensor for reliable human motion detection Detects movement using changes in infrared radiation Ultra-low power consumption suitable for battery-powered projects Digital output for easy interfacing with microcontrollers Fast response time for real-time motion detection Compatible with Arduino, Raspberry Pi, ESP32, and similar boards

51 MCU LED Digital Clock DIY Kit (Green) – 1-Inch Light-Control Display with Housing for STEM Learning This 51 MCU Digital Clock DIY Kit is a hands-on educational project designed to help learners understand the basics of microcontrollers, electronics, and digital circuits. With a bright 1-inch LED digital tube display and built-in light-control functionality, the clock provides a clear and interactive way to explore timekeeping principles. The kit includes all essential components along with a sturdy housing, making it a great introduction to real-world electronics assembly.Perfect for STEM and STEAM learning, this kit encourages creativity, analytical thinking, and problem-solving skills. Designed for beginners, students, and hobbyists, it allows users to experience practical electronics in a fun and engaging way. Whether used in classrooms, workshops, or home-learning environments, the DIY digital clock helps children and young adults build confidence through hands-on exploration and experimentation. Features: Hands-on DIY digital clock kit powered by a 51 microcontroller system. Bright 1-inch LED digital tube display with light-control functionality. Includes durable housing and all required components for assembly. Great for STEM/STEAM learning: science, technology, engineering, art, and math. Helps build creativity, practical skills, observation, and problem-solving abilities. Ideal for school projects, family learning, and maker workshops. Easy-to-follow study guide included for step-by-step learning.

7Semi I2C BME680 Sensor Probe Powered by Bosch Sensortec BME680 Sensor The 7Semi BME680 Environmental Sensor Probe is a compact and rugged sensing module designed for high-accuracy air quality monitoring in demanding indoor and industrial environments. Built around the Bosch BME680 multisensor chip, it delivers precise temperature, humidity, barometric pressure, and VOC gas readings over a reliable I2C interface. With its fully calibrated output and fast response time, this probe is ideal for engineers and system designers building smart HVAC controls, home automation setups, or environmental monitoring equipment. Encased in a breathable, chemically resistant plastic shell, the BME680 probe ensures long-term stability even when exposed to dust, high humidity, or harsh atmospheric conditions. The integrated 1-meter cable with a Mini Round Shell connector makes installation easy across ducts, walls, chambers, and compact enclosures. Its low power consumption and wide operating range make it a dependable choice for air quality monitoring projects, IoT systems, and precision sensor applications. Features: Offers 4-in-1 environmental sensing, providing temperature, humidity, barometric pressure, and VOC gas measurements in a compact and efficient module. Utilizes the Bosch BME680 sensor for high accuracy and fast response across a wide range of environmental conditions. Enclosed in a breathable, durable plastic housing that protects the sensor from dust, chemicals, and environmental wear while ensuring excellent air permeability. Supports I2C digital communication for seamless integration with microcontrollers and embedded systems. Includes a 1-meter cable with a Mini Round Shell Plastic connector, enabling flexible installation in tight or industrial spaces. Operates on low voltage (1.71V to 3.6V), making it ideal for energy-efficient and battery-powered applications. Fully factory-calibrated sensor output eliminates the need for manual tuning or recalibration. Designed for reliable performance in pipes, ducts, walls, HVAC units, greenhouses, and high-humidity environments.

7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1m -70~300C The 7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1 m (-70 ~ 300°C) (ES-13519) is a reliable temperature sensor designed to deliver accurate and stable readings across a wide temperature range. It uses a platinum PT100 RTD element, which is well known for precision and long-term consistency, making it suitable for both learning and professional applications. The sensor comes with a 1-meter cable and a sturdy stainless-steel probe that can handle demanding environments. Its simple 2-wire design makes it easy to connect with temperature controllers, data loggers, and microcontroller-based systems. Whether you’re working on industrial monitoring, laboratory experiments, or electronics projects, this PT100 probe offers a good balance of accuracy, durability, and ease of use. Features: Uses a PT100 platinum RTD element for accurate and stable temperature measurement Wide operating temperature range from -70°C to 300°C 2-wire configuration for simple and reliable connectivity Stainless steel probe for durability and long service life Comes with a 1-meter insulated cable for flexible installation Suitable for industrial, laboratory, and electronics projects Provides consistent readings over time with minimal drift

7Semi PT100 RTD 3-Wire Temperature Sensor Probe The 7Semi PT100 RTD Temperature Sensor Probe is built for engineers and industrial users who need dependable, high-accuracy temperature monitoring across a wide operating range. Using a premium JUMO PCA 1.2003.1EG platinum-chip element, this probe follows the IEC 60751:2008 Class F0.15 (Class A) standard, ensuring precise and stable readings from -70°C to +300°C. Its platinum resistance design offers exceptional repeatability with minimal drift, making it a reliable choice for long-term process monitoring and industrial automation systems. Designed with a durable 2-inch stainless steel probe and a 3-metre insulated 3-wire cable, this PT100 sensor is ideal for harsh, wet, or corrosive environments. Whether used in chemical plants, HVAC systems, laboratory setups, industrial machinery, or temperature-controlled processing units, it delivers consistently accurate performance. This combination of precision, durability, and affordability makes it a smart upgrade for anyone looking for a high-accuracy industrial temperature sensor. Features: Designed with a wide operating range from -70°C to +300°C, making it suitable for demanding industrial and laboratory applications. Built with a JUMO PCA platinum-chip element that meets IEC 60751:2008 Class F0.15 (Class A) standards for high accuracy and stability. Equipped with a 2-inch stainless steel probe, offering long-lasting durability even in harsh or corrosive conditions. Comes with a 3-metre insulated 3-wire cable, allowing easy installation in remote or hard-to-reach areas. Utilises platinum resistance technology for excellent repeatability, low drift, and consistent output over time. Features a waterproof design, enabling reliable operation in moisture-rich environments. Offers a cost-effective, high-reliability solution suitable for automation systems, industrial processes, and precision monitoring tasks.

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 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