8 Channel 5V Relay Board

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

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 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.

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

7Semi UCC21330 Dual-channel Isolated Gate Driver Breakout Board The 7Semi UCC21330 Dual-Channel Isolated Gate Driver Breakout Board is designed to efficiently drive power transistors like MOSFETs, IGBTs, and SiC devices with a peak source current of 4A and a peak sink current of 6A. Its 3kVRMS isolation barrier ensures safe and reliable operation in high-voltage environments, while programmable dead-time control allows precise timing adjustments to minimize switching losses and prevent shoot-through. Integrated protection features, including undervoltage lockout (UVLO) and a disable function, safeguard your system and enable immediate shutdown when needed. This compact breakout board is perfect for applications such as motor drives, power converters, and industrial automation systems requiring precise and reliable gate driving. Features: Supports dual low-side, dual high-side, and half-bridge configurations for a wide range of power applications. High Current Capacity: 4A peak source and 6A peak sink output provide robust transistor control. Enhanced Protection: All power supplies include UVLO protection and a configurable dead time for safe operation. Precision timing is achieved with a 33ns mean propagation latency and a maximum pulse-width distortion of 5ns. Robust CMTI operation: Common-mode transient immunity of more than 125V/ns enables dependable operation in high-noise settings. Fast Disable Logic: The built-in disable feature allows you to shut down both outputs at the same time.

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

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.

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.

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.

Radiolink FPV Mobile Phone Holder Stand Folding Mount for RC4GS V3/V2 & RC6GS V3/V2 Controllers The Radiolink FPV Display Monitor Screen Holder is designed to securely hold mobile phones or FPV display screens on your RC controller. Simply insert the mount into the controller’s 1/4” (M6) thread hole, place your phone or monitor on the holder, and adjust the angle using the 360° rotating ball head. This makes it easy to achieve the perfect viewing position while flying, whether indoors or outdoors. This foldable and lightweight holder extends from 5.5cm to 9cm, supporting FPV monitors up to 4.3 inches and mobile phones up to 6.8 inches. Compatible with Radiolink RC4GS V2/V3, RC6GS V2/V3, and other devices with a standard thread hole, it is made of durable plastic and metal to withstand impact. Weighing only 105g, it is easy to install, remove, and carry, making it a reliable accessory for FPV enthusiasts. Features: Holds mobile phones or FPV display monitors securely 360° adjustable ball head for optimal viewing angles Extendable from 5.5cm to 9cm Supports FPV monitors up to 4.3 inches and phones up to 6.8 inches Compatible with Radiolink RC4GS V2/V3, RC6GS V2/V3, and devices with 1/4” (M6) thread hole Lightweight and durable, made of plastic and metal Easy to install, remove, and carry

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.

SmartElex Dual Channel Battle Relay module The SmartElex Dual Channel Battle Relay Module is a compact and practical relay board designed to safely control high-power electrical loads using low-voltage control signals. It helps users switch devices like motors, lights, pumps, or appliances without directly handling high voltage, making projects safer and more reliable. This module is well suited for students, makers, educators, and engineers who are working on control systems, robotics projects, or learning automation concepts in labs and classrooms. This dual-channel relay module is commonly used in robotics, home automation, IoT experiments, and industrial prototyping where isolated and dependable switching is required. It integrates easily with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick connection and straightforward control through digital pins. With stable operation and simple interfacing, the SmartElex Dual Channel Battle Relay Module enables developers to focus on logic and application design, making it ideal for DIY projects, academic experiments, and early-stage product development. Connection Diagram : Features: Dual-channel relay module for independent control of two loads Safely switches high-power devices using low-voltage control signals Electrical isolation for improved safety and reliable operation Easy interfacing with Arduino, Raspberry Pi, and ESP32 boards Suitable for robotics, RC systems, automation, and DIY projects Compact design ideal for prototyping and embedded applications Applications: Control of auxiliary systems in RC combat and battle vehicles Glow plug control in RC nitro-powered cars and models Switching high-power lighting systems in RC aircraft, boats, and cars Domestic appliance control for home automation projects Non-critical automotive electronics control such as glow wires

7Semi DC-DC Buck Converter 14V-60V Input to 5V 3A Output- AP66300 (BO-10189) The 7Semi DC-DC Buck Converter 14V–60V Input to 5V 3A Output – AP66300 (BO-10189) is a compact power module designed to convert high DC input voltages into a stable 5V output with up to 3A current. Its wide input range makes it suitable for applications that use automotive, industrial, or high-voltage power sources. Built on an efficient synchronous buck design, this converter delivers reliable power with low heat generation and minimal energy loss. It is well suited for powering microcontrollers, sensors, communication modules, and other embedded electronics. Whether you’re working on industrial systems, automation projects, or advanced DIY builds, this buck converter provides a dependable and efficient power solution. Features: Wide input range: accepts 14V to 60V DC sources Provides a stable 5V output at up to 3A High-efficiency buck converter design for low energy loss Compact breakout board for easy project use Built-in power protection for safer operation Ideal for automotive, industrial, and embedded electronics Supports powering microcontrollers, sensors, and communication modules Efficient solution for IoT, automation, and high-voltage systems

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

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: