Elecrow 2.4 inch HMI touch display 240*320 TTL serial screen

1-Inch LED Digital Display DIY Clock Kit (Blue) – Light-Control MCU Project Set with Casing This DIY LED Digital Clock Kit is an excellent hands-on project for anyone interested in learning how microcontroller-based circuits work. Built around a 51-series MCU, it features a bright 1-inch LED tube display and an automatic light-sensing function that adjusts brightness according to the environment. The kit arrives as individual components, giving learners the opportunity to assemble, solder, and understand every part of the circuit. Created with STEM and STEAM education in mind, this kit helps improve logical thinking, practical assembly skills, and fundamental electronics knowledge. Whether used in a school lab, a maker space, or a home learning setup, it offers a fun and meaningful way to encourage creativity, experimentation, and scientific curiosity. The included housing completes the project with a clean, finished look once assembled. Features: DIY digital clock project featuring a 1-inch LED display for clear time reading. Light-sensing feature ensures suitable brightness in different lighting conditions. Comes as a complete unassembled kit to promote hands-on learning. Strengthens STEM/STEAM concepts such as circuitry, design, and problem-solving. User-friendly build suitable for classrooms, hobbyists, and beginners. Includes a protective enclosure for a neat and durable finish. Includes study instructions to guide the assembly process.

25 x 3mm Neodymium Disc Circular Magnet This 25mm x 3mm Neodymium Disc Magnet is a high-strength rare earth magnet designed for projects that require maximum magnetic force in a compact size. Made from premium NdFeB neodymium alloy, this disc magnet delivers exceptional holding power, making it ideal for DIY crafts, industrial applications, science experiments, home repairs, and various electronic uses. With a durable Ni-Cu-Ni triple coating, it offers corrosion resistance and long-lasting performance. Its compact disc shape makes it easy to use in projects such as motors, speakers, sensors, household repairs, custom holders, craft models, and magnetic displays. Whether you're creating functional mechanisms or designing mechanical setups, this magnet provides reliable magnetic force and stable attachment for multiple use cases. Features: High-quality NdFeB (Neodymium) rare earth material ensures strong magnetic performance. Compact 25mm × 3mm disc size ideal for both DIY and industrial projects. Triple-layer Ni-Cu-Ni coating prevents rust, corrosion, and surface damage. Magnetized through the diameter for stable and uniform magnetic force. Precision build with ±0.1 mm tolerance for accurate fitting in assemblies. Suitable for applications in electronics, tools, crafts, models, motors, and sensors. Safe operating temperature up to 80°C, ensuring reliability across environments

DFRobot Gravity 7/24 Industrial Analog pH Sensor Meter Kit for Arduino The DFRobot Gravity 7/24 Industrial Analog pH Sensor Meter Kit for Arduino is a high-precision Analog pH Sensor designed for professional and industrial applications requiring continuous pH monitoring. This Arduino pH Sensor uses an industrial-grade glass membrane electrode with low impedance, delivering fast response, excellent thermal stability, and stable performance over long periods. It supports a full measurement range of 0 pH to 14 pH with linear voltage output, ensuring accurate and reliable readings. The sensor integrates easily through a BNC connector and PH2.0 interface, allowing direct connection to any Arduino analog input. Its reference system, based on Ag/AgCl gel electrolyte with a PTFE membrane, provides strong anti-pollution characteristics and prevents clogging, making it an ideal industrial pH sensor for Arduino for water treatment systems, environmental monitoring, and laboratory analysis. Attention: The probe's bottle top contains protective fluids (3.3mol/L KCL). Even if the bottle cap is tightly fastened, some protective liquid may leak around it, resulting in white crystals. However, as long as the bottle top contains protective liquid, the probe's life and accuracy will be unaffected. Please use it with confidence. It is recommended that the white crystals be returned to the bottle cap's protective liquid. Features Industrial-grade Analog pH Sensor for accurate measurement Compatible with Arduino and other microcontrollers Measures pH range from 0 to 14 Fast response with high stability BNC connector for secure sensor connection Plug-and-play PH2.0 analog interface Built-in power indicator LED Suitable for long-term online monitoring Low maintenance and long sensor life Ideal for water quality and lab applications Applications Water Quality Surveillance Aquaculture

7Semi MAX31855 K-Type Thermocouple Amplifier Breakout The 7Semi MAX31855 Thermocouple Amplifier Breakout is designed for creators, engineers, and industrial users who need reliable and highly accurate temperature readings from extreme environments. With its advanced MAX31855 converter IC, this breakout allows effortless digital temperature measurement using K-type thermocouples, making it a powerful choice for applications like 3D printing, HVAC monitoring, and high-heat industrial systems. The onboard cold-junction compensation ensures precision by automatically correcting any thermal offsets at the connector. Supporting temperatures from -270°C to +1372°C, it delivers 14-bit resolution with smooth 0.25°C read steps, providing dependable, noise-free readings for sensitive processes. Built-in fault detection helps identify open circuits or shorts, making the system easier to troubleshoot and safer for continuous operation. With its SPI-based digital interface and compatibility with 3.3V/5V logic microcontrollers, the module integrates cleanly with Arduino, ESP32, Raspberry Pi, and industrial controllers. Features: Supports a wide thermocouple measurement range from –270°C to +1372°C, making it suitable for extreme heat and cryogenic applications. Provides 14-bit high-resolution output with precise 0.25°C increments for accurate temperature monitoring. Includes built-in cold-junction compensation, ensuring reliable compensation for ambient temperature fluctuations. Offers a simple SPI digital interface, requiring minimal I/O pins for easy integration with most microcontrollers. Compatible with multiple thermocouple types including K, J, N, T, S, R, and E, providing versatility in system design. Features fault detection for open thermocouples and shorts to VCC/GND to enhance system safety. Supports both 3.3V and 5V logic levels, ensuring broad compatibility across development 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 ACS772 50A 200KHz Current Sensor, Automotive Grade The 7Semi ACS772 50A 200 kHz Current Sensor is a high-performance current sensor module designed to accurately measure both AC and DC currents up to 50 A with a wide frequency response. Built with automotive-grade components, it delivers dependable and precise current sensing in demanding environments where stability and safety are critical. This sensor addresses the common challenge of obtaining accurate current measurements in power electronics, motor control, and battery systems, helping you monitor and protect circuits effectively. With its broad bandwidth of up to 200 kHz and robust design, the ACS772 current sensor module offers fast response, excellent linearity, and low noise, making it suitable for a wide range of applications. It’s perfect for students and hobbyists working on robotics or power monitoring, as well as professionals developing automotive systems, industrial equipment, and high-speed power electronics. The module’s ease of integration and reliability make it a practical choice for projects requiring real-time current feedback and protection. Features: High-accuracy current sensing with ±2.1% lifetime accuracy across temperature ranges Supports AC and DC current measurement for demanding power applications Ultra-low 100 µΩ internal conductor resistance for minimal power loss Reinforced galvanic isolation for safe high-side current monitoring Excellent noise immunity with advanced amplifier and filtering design Factory-trimmed gain and offset for consistent, reliable performance Compact, automotive-grade package for easy integration and mounting

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 MAX31865 PT1000 RTD 3-Wire Temperature Sensor Amplifier Breakout Board The 7Semi MAX31865 PT1000 RTD 3-Wire Temperature Sensor Amplifier Breakout Board is designed for highly accurate temperature measurement using PT1000 sensors. Equipped with the MAX31865 RTD to Digital Converter, it compensates for lead resistance and supports 2, 3, and 4-wire PT1000 configurations, ensuring precise readings. The board easily connects to microcontrollers via SPI and operates at both 3.3V and 5V, making it a versatile solution for industrial, laboratory, and advanced DIY temperature monitoring projects. Features: The PT1000 RTD, a cornerstone of industrial temperature monitoring, provides high accuracy and repeatability, outperforming thermocouples in harsh situations. MAX31865 RTD Amplifier: This specialized amplifier is designed to read the low resistance of PT1000 RTDs, resulting in optimal signal processing and error minimization. 3-Wire Compatibility: The breakout board offers 3-wire RTD connection combinations to meet your individual setup needs. excellent Accuracy Temperature Sensor: Temperature measurement with little drift and excellent resolution, ideal for applications requiring accuracy. MAX31865 SPI Interface: The breakout board seamlessly integrates with popular microcontrollers such as Arduino and Raspberry Pi, allowing for easy data collecting and control. PT1000 RTD Amplifier Calibration: The MAX31865 RTD amplifier has calibration capabilities, ensuring consistent and accurate readings throughout time. MAX31865 Fault Detection: Built-in fault detection procedures aid in the identification of issues such as sensor disconnections or over-temperature conditions, hence improving system reliability. Versatile Applications: Suitable for thermal cycling, industrial process control, laboratory investigations, and any scenario requiring precise temperature measurement. The 7Semi PT1000 RTD 3-Wire Temperature Sensor Amplifier Breakout Board - MAX31865 can help you optimize your temperature sensing capabilities. Elevate your projects with unrivaled precision and dependability.

DIY 51 MCU Electronic Clock Kit (Red) – 1" Light-Control LED Display with Assembly Case for STEM Projects This DIY 51 MCU Electronic Clock Kit offers an engaging way to learn core electronics and microcontroller concepts. It features a clear 1-inch LED digital display paired with an intelligent light-control function, ensuring visibility in different lighting conditions. The kit comes unassembled, allowing learners to understand every part of the build, from wiring to mounting, while gaining confidence in practical electronics. Designed for STEM and STEAM education, this kit encourages curiosity, experimentation, and hands-on problem-solving. It's an excellent tool for students, hobbyists, and makers looking to explore timekeeping circuits and microcontroller basics. Whether used in classrooms or at home, it helps develop creativity, scientific thinking, and technical skills through a fun, interactive building experience. Features: DIY microcontroller-based clock kit for hands-on learning and experimentation. Equipped with a bright 1-inch LED digital display and automatic light-control function. Includes pre-cut housing and all necessary electronic parts for easy assembly. Supports STEM/STEAM skill development in electronics, engineering, and problem-solving. Helps nurture creativity, observation, and practical building ability. Suitable for home learning, school labs, and maker workshops. Comes with a study-style instruction manual for guided learning.

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 Vikram-3025 High-Power 25A DC Motor Driver for 6–30V Motors The 7Semi Vikram-3025 is a heavy-duty single-channel DC motor driver built for demanding robotics, automation, and mechatronics projects. Designed to handle 25A continuous load with a 6V–30V operating range, it uses a high-efficiency discrete NMOS H-Bridge that eliminates the need for bulky heat sinks. Whether you're powering high-torque DC motors or creating reliable industrial controls, this driver ensures stable, smooth, and responsive performance. With built-in safety features like overcurrent protection, temperature protection, and undervoltage shutdown, your system stays secure even under heavy loads. This motor driver goes beyond basic control, it includes onboard test buttons, motor output LEDs, and a regulated 5V output for powering microcontrollers, making prototyping extremely convenient. It supports PWM/DIR control signals from a wide range of logic voltages (1.8V to 30V), ensuring compatibility with Arduino, Raspberry Pi, PLCs, and other controllers. It also offers manual control options using a potentiometer and switch, giving both beginners and advanced users flexible control in real-world applications. This makes it a dependable choice for custom robotics, high-power motor control, and automation systems. Features: Provides smooth and reliable bidirectional control for single brushed DC motors. Supports a wide operating voltage range from 6V to 30V for flexible motor compatibility. Handles a continuous motor current of 25A, ideal for high-load or high-torque applications. Includes an onboard 5V regulated output (250mA) to power a microcontroller without an external supply. Onboard test buttons and motor state LEDs allow quick, controller-free testing during prototyping. Offers dual input modes: PWM/DIR for digital control or potentiometer/switch for manual operation. Compatible with 1.8V, 3.3V, 5V, 12V, and 24V logic, making it suitable for Arduino, Raspberry Pi, PLCs, and more. Supports PWM input frequency up to 40kHz with a fixed 16kHz output for quiet motor operation. Built-in protections include active current limiting, overcurrent protection, temperature protection, and undervoltage shutdown.

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.

7Semi MAX31856 Universal Thermocouple Amplifier Breakout (ES-12229) The 7Semi MAX31856 Universal Thermocouple Amplifier Breakout is a versatile temperature sensing board designed to work with a wide range of thermocouple types. It allows you to measure temperatures accurately, from very low to extremely high ranges, making it suitable for both industrial and experimental applications. This breakout board converts the small voltage signals from a thermocouple into clear digital data that can be easily read by microcontrollers. With built-in cold-junction compensation and a simple digital interface, it reduces complexity and improves measurement reliability. Whether you’re working on monitoring systems, lab equipment, or advanced electronics projects, this module makes temperature measurement straightforward and dependable. Features: Supports multiple thermocouple types for universal temperature measurement High-accuracy temperature readings with built-in cold-junction compensation Digital interface for easy connection to microcontrollers Wide temperature measurement capability for low and high-temperature applications On-board signal amplification and noise filtering for stable output Compact breakout board suitable for industrial, lab, and DIY projects

Anycubic Kobra 3 Max 3D Printer – EU power plug The Anycubic Kobra 3 Max 3D Printer – EU power plug is a high-performance large-format FDM 3D printer designed for fast, precise, and large-scale printing. With an expansive build volume, it allows users to create bigger models or multiple parts in a single print, making it ideal for professional prototyping, product design, and advanced DIY projects. Equipped with high-speed printing capabilities and intelligent automation features, it delivers consistent results with minimal manual intervention. Models Created Built for efficiency and ease of use, the printer features advanced auto bed leveling technology for perfect first layers, a stable dual-axis motion system for reduced vibrations, and a high-temperature hotend compatible with a wide range of filaments. The EU power plug ensures compatibility with standard 220–240V power systems. Whether for industrial use, educational labs, or creative projects, this 3D printer offers reliable performance and excellent print quality. 420*420*500mm Print Volume The massive 420 × 420 × 500 mm print volume of the Anycubic Kobra 3 Max enables users to create large-scale models in a single print without the need to split designs into multiple parts. This expansive build area is ideal for producing full-sized prototypes, architectural models, and functional components with greater efficiency and precision. It significantly reduces assembly time and improves structural strength since parts can be printed as one complete piece. Printing Speed Up to 600mm/s With a printing speed of up to 600 mm/s, the Anycubic Kobra 3 Max is designed to deliver rapid production without compromising on print quality. This high-speed capability significantly reduces overall printing time, allowing users to complete large models and batch prints much faster than traditional 3D printers. It is especially beneficial for professionals and businesses that require quick prototyping and efficient workflow. Despite the speed, the printer maintains stability and precision through its advanced motion system, ensuring clean layers and accurate results. Precise Auto-Leveling & Motor Anti-skip The printer features an advanced auto-leveling system that ensures the print bed is perfectly calibrated before every print, eliminating the need for manual adjustments and reducing setup time. This precise leveling improves first-layer adhesion, which is crucial for achieving high-quality and successful prints. In addition, the motor anti-skip mechanism enhances movement accuracy by preventing step loss during high-speed operations. This results in smoother motion, better layer consistency, and reduced chances of print failure. Extremely Easy to Use The printer is designed with user convenience in mind, making it extremely easy to use for both beginners and experienced users. Its intuitive interface and guided setup process allow you to get started quickly without any technical complexity. Features like automatic bed leveling and pre-configured settings reduce manual effort and minimize errors during printing. The streamlined design ensures smooth operation, while simple controls make monitoring and adjusting prints hassle-free. Features: Massive build volume for large-scale 3D printing High-speed printing capability for improved productivity Intelligent auto bed leveling system for perfect first layers High-temperature hotend supporting multiple materials Dual motor-driven axis for enhanced stability and accuracy User-friendly interface for easy operation Compatible with popular slicing software Durable and rigid frame for consistent performance Suitable for prototyping, manufacturing, and creative projects

Cytron MDS160A 160Amp 8V–28V DC Motor Driver The Cytron MDS160A 160Amp 8V–28V DC Motor Driver is a high-power, smart motor controller built for demanding applications such as AGVs, combat robots, industrial conveyors, heavy-duty mobile robots, and high-torque motion systems. With its massive 160A continuous output, support for 8V–28V motors, and silent 16 kHz MOSFET switching, this motor driver ensures smooth, efficient, and reliable operation under extreme loads. It is designed for makers, engineers, and industrial projects that require a robust DC motor controller capable of delivering serious power. Powered by smart onboard firmware, the Cytron MDS160A offers multiple input modes, including RC, PWM+DIR, Analog, and UART, making it highly flexible for different control setups. It provides intelligent safety features such as thermal protection, regenerative braking, and temperature-based current limiting. You can also pair two MDS160A units for plug-and-play differential-drive robotics. Whether you're creating a powerful robot or building custom industrial automation, the Cytron MDS160A delivers the strength, stability, and smart control needed for high-performance motor applications. Features: Bi-directional control for a single brushed DC motor. Supports 8V–28V input voltage, suitable for various high-power applications. Capable of 160A continuous, 175A (2 minutes), and 190A peak for 1 minute. 16 kHz PWM switching frequency ensures silent, smooth motor control. Full MOSFET-based solid-state design - no flyback diodes required. Includes regenerative braking for improved efficiency. Built-in thermal protection and temperature-based current limiting. Multiple operating modes: RC, Analog, PWM+DIR, UART (Serial). Onboard test buttons for quick motor testing without a controller. Can pair with another MDS160A for differential-drive robot applications.