12V 8-Channel Relay board

28BYJ-48 5V DC Stepper Motor This 5V DC 28BYJ-48 Stepper Motor is small, inexpensive and high-quality geared step motor. The 28BYJ-48 Stepper Motor and ULN2003 Stepper Motor Driver is a widely popular combination of the stepper motor and stepper driver, because of the stability and reliability of the system. The motor has a reduction ratio of 64:1, so it offers a decent torque for its size at speeds of about 15 RPM. It is a unipolar stepper motor which has 5-wires. As stated before the pack contains ULN2003 Stepper motor driver which is a Mini Stepper Motor Driver.The main purpose of ULN2003 is to amplify the control signals from the Arduino, so as to drive the 28BYJ-48 Stepper Motor. If you will give the ULN2003 Stepper motor driver a certain pulse signal, it will drive step motor to a certain angle.The control of Stepper motor movement angle is done by controlling the number of stepper motor driver pulses. The speed of the stepper motor rotation is also controllable by controlling the frequency of the pulses. Connect the 28BYJ-48 motor with the ULN2003 motor driver then interface this combination of motor and driver with Arduino , do some coding and your 28BYJ-48 Stepper Motor is ready to listen to your commands Features: Stepper motor with a standard interface, when used directly pluggable. A, B, C, D four-phase LED indicator which indicates the status of the stepper motor work. Compact-size stepper motor perfect for small robotics applications. Applications: Cameras for providing precise control and positioning. Tilting of car side mirrors can be controlled using these motors. CNC Machines Robotic Arms Home Automation

12V 10A PWM DC Motor Speed Controller The DC Motor Speed Controller allows controlling the direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 10%-100%. The 12 Volt DC Motor Speed Controller can provide a continuous current of 10A to your DC motor or other DC load. The circuit also includes a 10A fuse, with the reverse connection of the power supply and control voltage over-voltage protection function. This speed regulator uses a barrier terminal block as its wiring type. The output voltage is linear under load and features a control frequency of 13kHz. Note: This cannot be used for the brushless motor. The controller is not reverse-polarity protected and will be damaged if it connects the supply voltage with the wrong polarity. Features: Control the speed of a DC motor with this controller. High efficiency, high torque, low heat generating. With reverse polarity protection, high current protection. Control voltage over-voltage protection function The overload and short circuit protecting current is 10A Applications: Automotive: Controlling the speed of cooling fans, windshield wipers, and air conditioning systems. Industrial Automation: Managing the speed of conveyor belts, exhaust fans, and other motor-driven machinery. Home Appliances: Adjusting the speed of fans, pumps, and other household devices. Treadmills: Regulating the speed of the treadmill belt for different workout intensities. Robotics: Providing precise speed control for DC motors in robotic projects. DIY Projects: Ideal for custom electronics projects requiring variable motor speed control

1200W PWM Motor Speed Controller with Potentiometer This is a simple and easy-to-use DC motor speed controller of small size, elegant appearance, and stable performance. It is made with a high-quality circuit board which ensures a longer service life. The DC Motor Speed Controller allows controlling the direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 10%-100%. The motor speed controller can provide a continuous current of 8A to your DC motor or other DC load. Speed Regulator is an important electronic DIY equipment. Do not touch the heat sink with the wiring. If it touches, it may burn the circuit board. Note that this is not a power module. It must be connected to the motor to speed it up. There is no change in the output of the multimeter without the motor. Features: Maximum Power: 1200W The speed of the DC motor can be controlled by adjusting the pulse width modulation (PWM). The knob realizes 0-100% adjustment, supports step-less speed regulation, and facilitates positioning speed.

A3967 Stepper Motor Driver This A3967 Stepper Motor Driver For Arduino is the most recent version of EasyDriver v44, which was created in collaboration with Brian Schmalz. When compared to previous versions, it offers more flexibility and control over your stepper motor . It is a simple stepper motor driver that is compatible with most microcontrollers and capable of producing a digital 0 to 5V pulse (0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). A 7V to 30V power supply is required for the module's motor. The digital interface is powered by an onboard voltage regulator that can be set to 5V or 3.3V. The A3967 is a full-featured microstepping motor driver with an integrated transistor. It is intended for use with bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capabilities of 30 V and 750 mA. The A3967 comes with a fixed off-time current regulator that can operate in slow, fast, or mixed current-decay modes. This current-decay control scheme produces less audible motor noise, higher step accuracy, and lower power dissipation. The transistor is essential to the A3967's simple implementation. Simply sending one pulse to the STEP input causes the motor to move one step (full, half, quarter, or eighth depending on two logic inputs). It is not necessary to programme phase-sequence tables, high-frequency control lines, or complex interfaces. The A3967 interface is ideal for applications where a complex P is either unavailable or overburdened. Features: A3967 microstepping driver Adjustable current control from 150mA/phase to 750mA/phase MS1 and MS2 pins are broken out to change microstepping resolution to full, half, quarter and eighth steps (defaults to eighth) Compatible with 4, 6, and 8-wire stepper motors of any voltage Breadboard-compatible pins.

A4988 Stepper Motor Driver Module with Heat Sink For 3D Printer (Red) A4988 Stepper Motor Driver is a complete micro-stepping motor driver with a built-in translator for easy operation. The product can be full, half, 1/4, 1/8, and 1/16 step mode to operate bipolar stepper motor output drive capacity of up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator can slow or mixed decay mode. The converter is the key to the easy implementation of the A4988. In inputting one pulse on the STEP input drives the motor one micros tep. No phase sequence tables, high-frequency control lines, or complex interfaces to programming. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened. The micro-step operation, the chopping control in the A4988 automatically selects the current decay mode (Slow or Mixed). In the mixed decay mode, the device is initially set to fast decay in the part of the fixed off-time, then a slow decay in the rest of the downtime. Mixed-decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry to improve the pulse-width modulation (PWM) power consumption when operating. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout (UVLO) and crossover current protection. Special power-Sort. If you want to control the stepper motor with this motor driver, you will need a few essential components like Arduino , breadboard, jumper wires, batteries, and power supply. Features: Simple step and direction control interface Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step Automatic current decay mode detection/choice. Mixed with slow current decay mode Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates check out : Stepper Motor Driver Expansion 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

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

SmartElex RS-485 (SP3485) Transceiver Breakout Module The SmartElex RS-485 (SP3485) Transceiver Breakout Module is a compact and reliable solution for enabling RS485 module based communication in electronics and automation projects. Designed to simplify long-distance and noise-resistant data transfer, it helps overcome the limitations of standard serial communication in industrial and field environments. This module is ideal for students, hobbyists, engineers, educators, and startups working on projects that require stable, differential signal communication for robotics, industrial controls, or embedded systems. With support for rs485 transceiver based networking, this board makes it easy to add rs485 communication to microcontrollers and development boards like Arduino, Raspberry Pi, and ESP32. Its breakout form factor allows quick integration into prototypes, IoT setups, and automation systems where devices need to communicate over long cables and noisy electrical environments. Whether used for sensor networks, building management systems, or PLC interfacing, it offers dependable performance that helps users build scalable and robust communication links without unnecessary complexity. Features: Enables RS485 module communication for long-distance, noise-resistant data transfer Based on the SP3485 transceiver for stable rs485 transceiver performance Supports differential signal communication ideal for industrial and field environments Easy-to-use breakout format for quick prototyping and integration Works with popular controllers such as Arduino, Raspberry Pi, and ESP32 Helps implement multi-node networks over twisted pair cabling Compact design suitable for compact robotics, IoT, and automation projects Provides reliable rs485 communication without complex wiring or circuitry

Bambu Lab H2C Combo 3D Printer The Bambu Lab H2C Combo 3D Printer redefines high-performance multi-material 3D printing with precision, speed, and intelligence. Built on advanced Fused Deposition Modeling technology, it features a robust aluminum-steel chassis, fully enclosed chamber, and hardened steel extrusion system capable of handling demanding engineering materials. With support for printing up to seven materials in a single job—without purge waste—the H2C enables complex, integrated designs effortlessly. Its AI-driven monitoring, ultra-fine 50 µm motion accuracy, and automatic calibration ensure consistent, professional-grade results, making it ideal for industrial prototyping, advanced R&D, and professional manufacturing workflows. Purge Saving Multi-Material Printing Using the H2C, it is possible to print as many as seven distinct materials in one pass without needing to purge any nozzles. Merge various material characteristics into a single continuous form and elevate integrated design to an unprecedented level. Integrated TPU Joints for Multi-Color Parts Print durable TPU ball joints for your robot models flexible long-lasting and built for endless motion. Multi-Material Printing With Minimal Purge Waste In conventional single-nozzle multi-material printing, it is necessary to flush out any remnant material when switching filaments. Vortek revolutionizes this process by utilizing a smart hotend-swapping mechanism that substitutes the complete hotend, resulting in quicker, cleaner prints with reduced waste. Fully Automatic Filament Change and Always Delivering the Most Efficient Conversation The Vortek system integrates flawlessly with our dependable AMS (Automatic Material System), enabling the complete automation of the filament replacement procedure, eliminating the necessity for manual loading of each filament into the toolhead. Small Form Factor, More Filaments As only the hotend is exchanged, the setup can accommodate as many as six hotends which are not changeable without greatly decreasing the build capacity. This allows for an increased variety of materials, colors, and options, all within a single print. 8-Second Induction Heating and Contactless Design for Reliability Our top tier induction heating technology heats the nozzle within 8 seconds, greatly minimizing the preheating duration required for changing materials when compared to conventional techniques. Our strict criteria for dependability prompted us to shift from using metal pins that rely on contact, as they are susceptible to oxidation and inconsistent connections. We created a solution without physical contact that guarantees a consistent, high-frequency link, which is essential for accurate temperature management and synchronized intelligent hotend operation. Enclosed for High Performance Printing and Fully Automatic Nozzle Offset Calibration Featuring a continuous enclosure and a flexible air circulation system, the H2C ensures a consistent environment temperature for top quality materials while also purifying the air to create a tidy and secure workspace. Our calibration process for inductive nozzle offset is entirely automated, requiring no manual intervention, calibration plates, or additional setup. Within a matter of minutes, the H2C accurately adjusts the nozzle offset to a tolerance of 25 microns. Dedicated Hotends for Specific Filaments The Vortek system of the H2C allows you to assign one of its six swappable hotends to particular filaments, significantly transforming the use of important engineering substances. This guarantees enhanced reliability and uniformity in printed results. Additionally, each hotend can automatically remember filament data, allowing for an immediate pairing with the appropriate hotend when that same material is loaded again. Smooth Surface, Sharp Edges The H2C utilizes the servo motor within the extruder along with high-resolution eddy current sensors positioned at the nozzle to detect the dynamics of extrusion. This capability allows for accurate control of the extrusion process and the automatic adjustment of Pressure Advance (PA) settings for every filament, leading to smoother surfaces and more defined, sharper edges. Flexible Network Security & Connectivity The H2C provides easy access to cloud connections for controlling the device remotely from any gadget. For applications that require high security, it also offers comprehensive offline capabilities, guaranteeing total physical separation. Users can manage the printer, transfer files, and perform firmware updates without requiring internet access. For those with advanced skills, Developer Mode allows access to the MQTT port, enabling the integration of external components and software. Features: The H2C supports multi material printing for up to 7 different materials, allowing you to produce complex parts in a single run while completely eliminating the need for nozzle purging or creating material waste. The system is equipped with dual hardened steel nozzles capable of reaching 350 °C, which are specifically engineered for long term durability and the processing of high temperature engineering filaments. It features a fully enclosed heated chamber that maintains a steady 65 °C environment to effectively minimize warping and significantly improve layer adhesion for high performance materials. The high force PMSM servo extruder provides up to 10 kg of pushing power, delivering stable and high speed extrusion with 70% more force than traditional stepper motors. By utilizing a vision encoder that automatically compensates for mechanical drift, the printer achieves an ultra precise motion accuracy of 50 µm throughout the entire build. The AI powered print monitoring system uses a network of 59 intelligent sensors and a quad camera vision setup to detect potential printing errors in real time. The H2C features automatic nozzle offset and pressure advance calibration to ensure perfectly smooth surface finishes and consistently sharp edges on every part.

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 Multiplexer USB/TTL/RS232/RS485 Communication Converter The SmartElex Multiplexer USB/TTL/RS232/RS485 Communication Converter is a versatile interface board designed to simplify data communication between different serial protocols. It allows users to convert and connect USB signals to TTL, RS232, or RS485 devices without complex wiring or additional hardware, making it ideal for students, makers, engineers, educators, and startups working with industrial equipment, microcontrollers, or legacy communication systems. This module helps bridge communication gaps between computers and embedded hardware, reducing setup time during development and troubleshooting. This multiplexer converter is commonly used in robotics, IoT device management, automation systems, PLC communication, sensor networks, and serial debugging tasks. It works smoothly with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms, enabling stable data exchange and reliable serial protocol conversion for both prototypes and field applications. With easy integration and dependable performance, the SmartElex USB/TTL/RS232/RS485 converter is a practical tool for laboratories, development environments, and industrial interfacing projects that require seamless multi-protocol communication. Features: Supports USB to TTL, RS232, and RS485 serial communication Enables multiple protocol conversions in a single module Simplifies interfacing between computers and embedded systems Compatible with Arduino, Raspberry Pi, ESP32, PLCs, and sensors Ideal for robotics, IoT, automation, and industrial applications Suitable for debugging, monitoring, and data communication testing

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

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

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

Anycubic Photon P1 3D Printer The Anycubic Photon P1 is an advanced resin 3D printer engineered to deliver near-industrial precision with user-friendly operation. Featuring a high-resolution optical system with over 92% light uniformity, it ensures sharp details, smooth surfaces, and consistent curing across every layer. Its robust mechanical design, including a precision-ground steel build plate and dual-rail Z-axis system, provides exceptional stability and accuracy, making it ideal for professional-grade applications such as prototyping, dental modeling, and intricate design work. Designed for versatility and performance, the Photon P1 supports a wide range of resins, including high-viscosity industrial materials up to 8000 cps. It also introduces advanced technologies such as Wave Release for reduced peel force and a temperature-controlled resin vat for consistent printing even in challenging conditions. With optional dual-material and dual-color printing capability, it enables users to create complex models in a single print, significantly improving workflow efficiency and creative possibilities. Wave Release Technology Wave Release Technology is an advanced innovation designed to significantly improve the reliability and quality of resin 3D printing. It works by optimizing the layer separation process during printing, reducing the peel force required to detach each cured layer from the film. This reduction in force helps prevent common issues such as layer shifting, model deformation, or print failures, especially in complex or delicate designs. Precision-Fitted Industrial-Grade Ball Screw The precision-fitted industrial-grade ball screw enhances the printer’s Z-axis movement by delivering smooth, accurate, and highly stable vertical motion during the printing process. This high-quality component minimizes mechanical backlash and vibrations, ensuring consistent layer alignment and superior print accuracy even for intricate and detailed models. Its robust construction supports long-term durability and reliable performance, making it suitable for continuous industrial use. By maintaining precise positioning throughout each layer, it significantly improves surface finish and overall print quality, especially in high-resolution resin printing applications. Precision-Ground Steel Build Plate The precision-ground steel build plate is engineered to provide a perfectly flat and stable printing surface, ensuring excellent first-layer adhesion and consistent print quality. Its finely machined surface enhances grip for resin prints, reducing the chances of model detachment during the printing process. This high level of flatness and rigidity improves overall accuracy, especially for detailed and high-resolution prints. Built for durability, the steel construction withstands repeated use and maintains its precision over time, making it ideal for professional and industrial applications. Engineered for Ultra-Viscous 8000cps Resin Engineered to handle ultra-viscous resins up to 8000 cps, this feature allows the printer to work efficiently with thicker, high-performance materials that are typically challenging for standard resin printers. It ensures smooth and consistent resin flow, preventing issues like uneven curing or print defects. This capability expands material compatibility, enabling the use of specialized industrial resins for stronger, more durable, and functional prints. As a result, users can achieve higher-quality outputs with improved mechanical properties, making it ideal for advanced engineering, prototyping, and professional applications. Features: High-resolution resin printing with ultra-fine detail Dual-color and dual-material support (optional) LightTurbo 4.0 optical system for uniform curing Wave Release technology for improved reliability Supports high-viscosity industrial resins (up to 8000 cps) Temperature-controlled resin vat for stable performance Intelligent assistant for automated operation Strong and stable mechanical structure Ideal for dental, prototyping, and miniature printing.