Waveshare Modbus PoE 8 Channel Ethernet Relay Module (B) with Digital Input The 8-channel Ethernet Relay Module with PoE capability is a versatile industrial control device designed for remote switching applications. This module features 8 relay outputs (250V AC/30V DC, 10A) and 8 digital inputs, making it perfect for monitoring and controlling equipment in industrial automation, smart home systems, and IoT projects. The built-in PoE functionality allows the module to be powered directly through the Ethernet cable, eliminating the need for a separate power supply while maintaining network connectivity. For applications without PoE switches, the module also supports traditional DC power input (7-36V). What sets this relay module apart is its comprehensive communication options and robust protection features. It supports both Modbus TCP and Modbus RTU protocols, making it compatible with most industrial control systems. The web server interface allows for easy configuration through any browser, while the RS485 interface enables daisy-chain connections in larger systems. Each relay channel is equipped with isolation and protection circuits to prevent damage from voltage spikes and interference. The module's status can be monitored through LED indicators, and its compact design with DIN rail mounting makes installation straightforward in control cabinets. This combination of features makes it an ideal solution for students learning industrial automation and shop owners looking to implement remote control systems. Multiple LED Indicators make it Easy to Monitor the Operating Status RUN- Ethernet port indicator, blinking when Ethernet port normally working STA- MCU indicator, blinking when the MCU normally working TXD- TX indicator, lights up when sending data RXD- RX indicator, lights up when receiving data Ethernet port Green Indicator- Lights up when the connection is established Ethernet Port Yellow Indicator- Data activity indicator, blinking when transmitting data Features: 8 relay outputs (SPDT) with 250V AC/30V DC, 10A maximum load capacity 8 digital inputs for monitoring external switch status or sensors Supports multiple protocols: Modbus TCP, Modbus RTU, TCP Server/Client, UDP, and HTTP PoE (IEEE 802.3af) compatible with alternative DC power input (7-36V) Built-in web server for easy configuration through browser interface RS485 interface with Modbus RTU support for daisy chain networking Comprehensive protection with 3000V isolation between digital/relay circuits and network

Waveshare Industrial Modbus RTU 8 Channel Relay Module RS485 This is an industrial 8-channel Modbus relay module that is controlled by an RS485 bus and uses the Modbus RTU protocol. This 8 channel Modbus relay board has embedded protection circuits like power isolation, ADI magnetic isolation, TVS diode, and so on. It also includes an ABS enclosure. The Modbus RTU Relay is extremely simple to use. The Modbus relay module is an ideal choice for industrial control equipment and/or applications with high communication requirements due to its fast communication, stability, reliability, and safety. A reverse-proof circuit that prevents the circuit from accidentally being damaged by an incorrect connection. The MCU status and signal transceiving status are indicated by 3 LEDs, they are: LED indicators used: STA: MCU indicator, keep flashing when the MCU normally working TXD: TX indicator, light up when sending data RXD: RX indicator, light up when receiving data Also, read our blog on Applications of Relay explaining 8 major applications, what is it, how does it works, its construction, and different types of relays. Features Configurable device address (1~255) allows multiple devices to cascade on the RS485 bus. Flash-on, flash-off function enables automatic relay shutdown after a set time. Built-in isolated power supply ensures stable voltage without extra power. ADI magnetic isolation for high reliability, strong anti-interference, and low power consumption. TVS protection suppresses surge and transient spike voltage for lightning-proof and anti-static safety. Optocoupler isolation prevents interference from high-voltage circuits. Reverse-proof circuit protects against damage from incorrect wiring. High-quality relay with ?10A 250VAC/30VDC contact rating. Rail-mounted ABS plastic enclosure for easy installation and safety. Three LED indicators display MCU and signal transmission status. What’s On Board: Hardware Diagram of Industrial Modbus RTU 8-ch Relay Module Applications: Industrial Control - Valve control, pump station control, unattended industrial control system Smart Home - Controlling appliances like air conditioner, access control, purifier, water heater, and so on Intelligent Agriculture - Controlling door curtain motor, air blower, and so on Breeding And Farming - Controlling ventilator, lighting, water supply, feeding system, and so on

NVIDIA Jetson Nano Development Kit (Alternative of B01 Kit) The NVIDIA Jetson Nano Development Kit is an advanced AI computing platform, designed as a powerful and flexible alternative to the Jetson Nano B01 Kit. Featuring compatibility with both Jetson Nano and Jetson Xavier NX core modules, this development kit maintains almost the same I/O interfaces, size, and thickness as the original Jetson Nano Developer Kit (B01), making it an ideal upgrade solution. With its robust computing power and versatile connectivity, it is suitable for a wide range of AI applications including image classification, object detection, segmentation, speech processing, and more. Whether you are working on edge AI projects or seeking a Jetson Nano Kit Alternative, this development kit empowers developers to harness the full potential of NVIDIA Jetson Nano Development Kit capabilities while offering seamless module upgrades. Features: Compatible with Jetson Nano Core Module and Jetson Xavier NX Core Module Designed as a Jetson Nano B01 Alternative with similar I/O ports, size, and form factor Easy upgrade path by swapping the core module for enhanced AI performance Supports advanced AI tasks like image classification, object detection, segmentation, and speech processing Provides powerful GPU-accelerated AI computing for edge AI and embedded applications Compact and efficient design for seamless integration into custom projects Ideal for developers looking for a Jetson Nano Kit Alternative with extended flexibility Fully utilizes the capabilities of the NVIDIA Jetson Nano Development Kit ecosystem

Waveshare Official Heatsink for Jetson Nano The Official Heatsink for Jetson Nano is the perfect cooling solution for your NVIDIA Jetson Nano Developer Kit. Made from high-quality aluminum alloy with excellent thermal conductivity, this heatsink effectively dissipates heat generated during intensive computing operations. The package includes a pre-applied thermal silicone pad that ensures maximum heat transfer between your Jetson Nano module and the heatsink. This cooling solution is essential for students and developers working on AI projects, computer vision applications, or any task that puts heavy load on the Jetson Nano for extended periods. Installation is quick and straightforward with no special tools needed. Simply place the heatsink on top of your Jetson Nano, and it fits perfectly on both A02 and B01 versions. The heatsink's efficient design prevents thermal throttling, allowing your Jetson Nano to maintain optimal performance even during demanding tasks like deep learning or video processing. By keeping your device at safe operating temperatures, this heatsink not only improves performance but also extends the lifespan of your valuable Jetson Nano. For students working on projects or shop owners selling Jetson Nano products, this official heatsink is an essential accessory for anyone serious about getting the most from their Jetson Nano. Features: Compatible with both Jetson Nano A02 and B01 versions Made of aluminum alloy for superior heat dissipation Includes pre-applied thermal silicone pad Simple installation without any tools required Prevents thermal throttling during intensive computing tasks Helps maintain optimal performance for AI and deep learning projects

Waveshare Raspberry Pi Compute Module 4 IO Board with PoE Feature The Raspberry Pi Compute Module 4 IO Board with PoE (Power over Ethernet) functionality is a versatile and robust development platform designed specifically for all variants of the Raspberry Pi Compute Module 4 (CM4). Ideal for prototyping, evaluation, or integration into final products, this IO board provides essential connectivity and interface options, including support for PoE, enabling power and data delivery over a single Ethernet cable. Whether you're a developer testing CM4 capabilities or building an embedded solution, this board offers a reliable foundation with industrial-grade features. Features: Full compatibility with all Raspberry Pi CM4 variants Power over Ethernet (PoE) support for simplified power and data via a single cable Standard Gigabit Ethernet port for high-speed networking Dual HDMI outputs for multi-display support Multiple USB 2.0 ports for peripheral connectivity PCIe Gen 2 x1 slot for expansion (e.g., NVMe SSD, network cards) Camera and display interfaces (CSI and DSI) for multimedia applications Standard GPIO header (40-pin) for hardware interfacing Onboard microSD card slot for CM4 Lite variants (without eMMC) Robust design ideal for industrial and embedded use cases

RoArm-M2-Pro Desktop 4-DOF Robotic Arm Kit Based on ESP32 The RoArm-M2-Pro Desktop 4-DOF Robotic Arm Kit Based on ESP32 designed for innovative applications, featuring a lightweight structure (<900g) and a 0.5kg payload at 0.5m reach. With a 360° omnidirectional base and three flexible joints, it offers a 1-meter workspace, making it ideal for mobile platforms. Its joint direct-drive design enhances precision and reliability, while dual-drive technology boosts shoulder joint torque. Powered by an ESP32 MCU, it supports multiple wireless control modes and seamless integration with various devices via rich communication protocols. The arm includes a user-friendly web application with visualized coordinate control, ROS2 compatibility, and customizable End of Arm Tooling (EoAT) for versatile applications. It also supports wired and wireless communication and comes with extensive tutorials for easy learning. Features: Multiple EoAT mounting methods The EoAT can be used as the fourth degree of freedom or as a clamp and supports a number of mounting techniques. offers open-source DXF and 3D models for secondary development and do-it-yourself projects. Flexible joints × omnidirectional space Adopts 360° rotation base and flexible joints to create an omnidirectional operating space with a 1-meter diameter, allowing the EoAT to move freely in all directions Controlling with a Cross-Platform Web Application is Simple. Access is available after inputting the location; no app installation is necessary. enables users to connect and control RoArm-M2 through the Web App's buttons on PCs, tablets, and smartphones. encourages secondary development of this open-source web application in order to add new features and modify the user interface. Open Source in its Entirety for Secondary Development The Roarm-M2 series' control codes and communication interface papers are fully open source, supporting a variety of languages and secondary development devices. offers simple-to-use, modularized training and examples for novices with no prior experience. Lightweight Construction and Superior Load Capacity Suitable for a variety of mobile robot chassis, the lightweight body weighs less than 900g overall and uses carbon fiber and 5052 aluminum alloy to provide stability under heavy loads. Joint Direct Drive Design the Feedback Precision up to 0.088° A 12-bit high-precision magnetic encoder without any reduction groups can be used to directly extract the joint angle feedback, which is more accurate. The joint angle feedback can then be used to calculate the current target point's real position. Innovative Dual-Drive Technology Doubles the Shoulder Joint Torque We have created a dual-drive control algorithm that greatly increases the power and total load capacity of the RoArm-M2-Pro Series by enabling the two servos at the shoulder joint to efficiently coordinate their output torque. Direct-Drive Clamp Enables Precise Force Control Delicate objects can be clamped without using too much force because to the direct-drive clamp design, which provides fine control over the clamp force in the program. Curve Velocity Control for More Comfortable Motion To eliminate oscillations during start and stop, we employ the curve velocity control method to make the robotic arm operate more smoothly and organically. Other Features: Rubber Band Support for Gravity Compensation: By using the elastic contraction of rubber bands to counteract the effects of gravity and raise the robotic arm's effective load, the SHOULDER and ELBOW joints facilitate the installation of rubber bands to support the arm. Adaptive Force Control: Enabling this function allows you to set a maximum torque limit for each joint. When external force exceeds the threshold, the arm rotates in response and returns to position once the force decreases. One-Click Action Recording: RoArm-M2 saves JSON task files in ESP32 Flash for reliable, repeatable robotic operations. Precise Targeting via Coordinates: Open-source inverse kinematics control enables precise movement in a 3D Cartesian system, calculating joint angles to reach target positions accurately. ESP-NOW Wireless & Low-Delay Control: ESP-NOW enables low-delay wireless control without network infrastructure, supporting broadcast, group, and one-to-one robotic arm control. ESP-NOW Leading-Following Control Mode: In Leading-following mode, the Leader arm sends joint angle data via ESP-NOW to Follower arms, which mimic its actions in real time. Multiple Control Interfaces & Device/Language Support: RoArm-M2 series can be controlled via the WEB app, JSON commands over HTTP, serial, or USB communication for control and feedback. Multiple Installation Methods for Integration: Offers multiple installation schemes and development resources for flexible integration into various projects and applications. Easy To install different peripherals: The upper arm structure features two 1020 European standard aluminum rails with boat nuts and M4 screws for easy installation of additional peripherals. Camera Support for Visual Applications: Includes a camera holder and open-source drawings, allowing direct installation of a compatible camera or others with an adapter. Supports EoAT Expansion for More Functions: Comes with an expansion plate, easy for users to expand and replace different EoAT. Onboard ESP32 Main control board: Adopts ESP32 MCU, supports multiple wireless protocols, and offers extensive open-source resources for innovative application development. ROS2 Compatible with Model Files & Multi-Device Support: Provides communication nodes of ROS2, URDF model description file and zero-based tutorial of ROS2. Extensive Development Tutorials: Complete tutorials and case studies covering functions and applications to help users quickly get started with secondary development. General Driver Board for Robots: Onboard rich interfaces and resources for innovative development and functional expansion. Versatile Onboard Resources & Expansion Support: Integrated TB6612FNG motor drive IC, INA219 battery voltage monitoring, and 9-axis IMU sensor, enabling function expansion and innovation. Mouse drag-and-drop interaction: Offers web and desktop software (open-source Python programs) to set action instructions with mouse press/release for flexible robotic arm control.

Waveshare RoArm-M2-S Desktop 4-DOF Robotic Arm Kit Based on ESP32 The RoArm-M2-S is a 4-DOF smart robotic arm designed for precision and adaptability across various applications. Weighing under 900g, it supports a 0.5kg payload at 0.5m and offers a 1-meter diameter workspace with its 360° omnidirectional base and flexible joints. Its direct-drive joint design and dual-drive technology ensure enhanced torque and accuracy, making it ideal for mobile platforms. Powered by an ESP32 MCU, it supports multiple wireless control modes, ensuring seamless integration with different devices. The user-friendly web app features an intuitive coordinate control mode, making operation effortless for both beginners and experts. Features: Enhanced EoAT Versatility The End-of-Arm Tool (EoAT) can function as the fourth degree of freedom or as a clamp, supporting multiple mounting methods. Includes open-source DXF and 3D models for easy customization and DIY projects. Omnidirectional Motion with Flexible Joints Designed with flexible joints and a 360° rotating platform, the RoArm-M2-S offers a 1-meter operating range, enabling unrestricted movement in all directions. Seamless Cross-Platform Web Control No app installation required—simply enter the robot’s address to connect via PC, tablet, or smartphone. The open-source Web App supports custom UI modifications and feature expansion for advanced users. Fully Open-Source for Custom Development The RoArm-M2 series provides open-source control codes and communication interface documentation, supporting multiple programming languages and hardware platforms. Offers modular training resources, making it beginner-friendly. Lightweight Yet High-Strength Build Weighing less than 900g, the robotic arm is built with carbon fiber and 5052 aluminum alloy, ensuring stability and durability while maintaining compatibility with various mobile robot chassis. High-Precision Joint Feedback (0.088° Accuracy) Equipped with a 12-bit magnetic encoder, the system directly extracts joint angle feedback for enhanced accuracy, allowing for precise positioning of the robotic arm. Dual-Drive Technology for Enhanced Torque A custom dual-drive control algorithm significantly increases shoulder joint torque, enabling higher power output and greater load capacity, ensuring smooth and stable operation. Direct-Drive Clamp for Precise Force Control The direct-drive clamp design allows for fine-tuned force adjustments, ensuring delicate objects are securely gripped without excessive pressure. Curve Velocity Control for Smooth Motion Utilizes an advanced curve velocity control algorithm to minimize oscillations, delivering a natural and fluid movement experience, especially during start and stop operations. Other Features: Rubber Band Gravity Compensation – Uses rubber bands on the shoulder and elbow joints to counteract gravity, increasing the arm’s effective load capacity. Adaptive Force Control – Sets maximum torque limits for joints, allowing the arm to yield when external force exceeds the threshold and return when force decreases. One-Click Action Recording – Saves JSON task files in ESP32 Flash for repeatable and reliable robotic operations. Precision Targeting with Coordinates – Uses inverse kinematics to calculate joint angles for accurate 3D Cartesian positioning. ESP-NOW Wireless & Low-Latency Control – Supports network-free, low-delay control, enabling broadcast, group, and one-to-one communication. ESP-NOW Leader-Follower Mode – The Leader arm transmits joint angle data to Follower arms, allowing real-time synchronized movement. Multiple Control Interfaces – Operates via Web App, JSON commands, HTTP, serial, or USB, supporting various devices and programming languages. Flexible Installation Options – Offers multiple mounting methods and extensive development resources for seamless integration into different projects. Easy Peripheral Installation – Features two 1020 aluminum rails with boat nuts and M4 screws for quick attachment of additional peripherals. Camera Support for Visual Applications – Includes a camera holder and open-source design files for direct camera installation. EoAT Expansion Compatibility – Comes with an expansion plate, making it easy to swap and install different end-effectors (EoAT). ESP32 Onboard Main Control Board – Supports multiple wireless protocols and offers extensive open-source development resources. ROS2 Compatibility – Provides ROS2 communication nodes, URDF model files, and a beginner-friendly ROS2 tutorial. Comprehensive Development Tutorials – Includes detailed guides and case studies for users to quickly start secondary development. General-Purpose Driver Board – Equipped with rich interfaces and expansion options for robotic development and upgrades. Integrated Onboard Resources – Features TB6612FNG motor driver, INA219 battery monitoring, and a 9-axis IMU sensor for enhanced functionality. Mouse Drag-and-Drop Control – Provides a Web and Desktop interface (Python-based) for intuitive action programming via mouse clicks.

Waveshare RPi Camera (M) with Fisheye Lens The Waveshare RPi Camera (M) with Fisheye Lens is a powerful and versatile imaging solution designed to elevate your Raspberry Pi projects. This compact yet feature-rich RPi camera module M is equipped with a premium fisheye lens that delivers an ultra-wide-angle field of view, allowing you to capture immersive and panoramic visuals with stunning clarity. Perfect for creative photography, surveillance, and machine vision applications, the Raspberry Pi fisheye camera offers exceptional flexibility and a distinctive visual aesthetic. Compatible with various Raspberry Pi models, this camera module is an ideal choice for developers, hobbyists, and enthusiasts seeking to expand their Raspberry Pi's imaging capabilities with a wide, creative angle. Note to use the camera with Raspberry Pi Zero / Zero W / Zero WH, you need to buy a specific cable: Raspberry Pi Zero v1.3 Camera Cable 15cm Features: Raspberry Pi Camera supports all Pi revisions. Features a fisheye lens for a broader field of view. 5 MP OV5647 sensor Features include adjustable focus distance and a resolution of 2592 x 1944 for static pictures. Supports 1080p30, 720p60, and 640x480p60/90 video recording.

Waveshare RS485 to RJ45 Ethernet Industrial Serial Server with POE Function (Optional) The Waveshare RS485 to RJ45 Ethernet Industrial Serial Server with POE Function (Optional) is a robust RS485 to Ethernet converter designed specifically for demanding industrial environments. This industrial RS485 to Ethernet module integrates multiple functions, including serial server, Modbus gateway, MQTT gateway, and RS485 to JSON converter, offering flexible and reliable data communication solutions. Featuring both RS485 and Ethernet ports, the module enables seamless conversion between serial devices and Ethernet networks, acting as an efficient RS485 to RJ45 serial server. It supports a wide 9~24V power input through screw terminals and also offers optional Power over Ethernet (POE) functionality for simplified wiring. Housed in a compact, rail-mount, flame-retardant case, this converter is easy to install and ideal for applications such as data acquisition, IoT gateways, safety and security IoT systems, and intelligent instrument monitoring. Trust the Waveshare RS485 Ethernet converter for stable, secure, and industrial-grade data transmission in your automation and IoT projects. Features: The guide rail design is appropriate for installation within industrial cabinets. Small size: Compared to the usual serial server, the width is smaller and doesn't take up room. The terminal type power supply has a wide voltage input range of 9-24V and includes reverse power protection. Terminal RS485 interface enables 32 slave devices with baud rates ranging from 300 to 115200bps. Support the MQTT gateway function. Support JSON to Modbus RTU and 645 instrument protocols. To upload data, we support both HTTP POST and HTTP GET.

Waveshare SIM7028 NB-IoT HAT for Raspberry Pi with Global Band NB-IoT Communication Support The SIM7028 NB-IoT HAT supports global bands and a variety of communication protocols, including MQTT(S), HTTP(S), TCP, UDP, and others. It is made for low-power, low-latency Internet of Things applications. Jetson Nano, Raspberry Pi series boards, and other microcontrollers may all use it because it has a standard 40PIN GPIO header. With a USB-to-UART chip for flexible communication, a nano SIM card slot, UART control pins for external connections, an onboard Type-C interface for software debugging, and a range of IoT applications, including asset tracking, smart meters, remote healthcare, and smart city solutions, this module is incredibly versatile. It ensures simple development and integration by providing documentation and online resources with sample codes for the Raspberry Pi, Jetson Nano, Arduino, and ESP32. Pinout Features: Supports Jetson Nano and Raspberry Pi series boards and has a standard 40PIN GPIO extension header. supports a variety of protocols, including HTTP(S), MQTT(S), LWM2M, COAP, DTLS, DNS, NTP, PING, TCP, UDP, and TLS/SSL. Type-C onboard interface for debugging software Onboard UART control pins for Arduino/STM32 and other host board connections One LED indicator makes it simple to keep an eye on the operational state. A jumper can be used to configure the UART communication pin on the onboard USB to UART chip. Compatible with NB-IoT-specific cards, the onboard micro-SIM card slot Baudrate: 2400 bps to 460900 bps (defaulting to 115200 bps) 3GPP TS 27.007, 27.005, and SIMCOM enhanced AT commands are used for control. Supported SIM application toolkits include USAT, GSM 11.11, and SAT Class 3. includes a handbook and online development resources (e.g., Raspberry Pi, Arduino, Jetson Nano, and ESP32 examples).