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Arduino Modbus Rtu

Die 10 besten Produkte von Dezember 2025
Letzte Aktualisierung: 10. Dezember 2025
Coolwell
Coolwell
ESP32-S3 WiFi Relay Module, Industrial 1-Channel Relay Controller with RS485 Interface, Bluetooth 5, DIN Rail Mount, 10A Relay Switch for Smart Home, IoT, Fits Arduino
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90

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AUF AMAZON ANSEHEN
Amazon.de
#4

  • ✔ Industrial-Grade ESP32-S3 Relay Module with Wi-Fi & Blue-tooth: Based on the ESP32-S3 dual-core processor, this Wi-Fi relay module integrates Bluetooth 5 and delivers AIoT-ready performance for smart home, automation, and industrial control projects.
  • ⚡ 1-Channel 10A Relay for High-Power Devices: Equipped with a high-quality 1-channel relay, supporting ≤10A 250VAC/30VDC, allowing you to safely control appliances, lights, motors, and industrial equipment via Wi-Fi relay switch or RS485 relay.
  • 🛡️ Multiple Isolation Protection Circuits for Reliability: Features opto-isolator protection, digital isolation, and power isolation to safeguard against high-voltage interference, making this industrial IoT relay safe, stable, and highly reliable.
  • 📶 RS485 Interface with Flexible Networking: Built-in isolated RS485 communication port, supporting Modbus and cascading with RS485 relay devices, ideal for industrial automation, data acquisition, and IoT gateway applications.
  • 🛠️ Easy Installation with DIN Rail Mount & Arduino Support: Comes with a rail-mounted protective case for quick installation in control cabinets. Supports Ar-duino programming, SDKs, and MQTT protocol for seamless IoT cloud integration and remote control.
  • 27,83 € AUF AMAZON
Waveshare
Waveshare
Waveshare Industrial Modbus RTU 4-Ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
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75

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Amazon.de
#9

  • An industrial 4-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay 4CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing arguments to the command, it is possible to turn on the relay for a while and then close it automatically
  • Onboard voltage regulator, supports 7V~36V wide voltage supply. Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody ADI magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  • Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic. Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
  • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤30A 250V AC or ≤30A 28V DC. Rail-mounted ABS plastic enclosure, easy to install, safe to use. 3 LEDs for indicating the MCU status and signal transceiving status
  • 48,99 € AUF AMAZON
Waveshare
Waveshare
Waveshare 16-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, Ethernet Communication, Support PoE, Various Isolation & Protection Circuits, Industrial Grade Rail-Mount Case
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67

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Amazon.de
#10

  • Dual Ethernet Ports with PoE Support:This 16-channel relay module is equipped with dual Ethernet ports, allowing for cascade communication via Ethernet ports, ensuring easy expansion and a reliable network connection. It also supports Power over Ethernet (PoE), eliminating the need for separate power cables and simplifying the overall system setup, ideal for environments with limited power outlets.
  • Modbus RTU/TCP Protocol Compatibility & MQTT Support: Supporting both Modbus RTU and Modbus TCP protocols, the module offers flexible and industry-standard communication options. It is also compatible with the MQTT protocol for relay control, and comes with a demo application for Alibaba Cloud MQTT, making it simple to integrate the device into cloud-based industrial automation systems or IoT networks.
  • Wide Power Input Range & Safety Features: The relay module supports a wide DC power input range of 7-36V, accommodating various power supply options in industrial settings. Additionally, it features onboard optocoupler isolation to protect the relays from high-voltage interference, ensuring reliable operation and preventing damage from electrical surges.
  • Enhanced Relay Protection and Control Functions:This relay module is equipped with a dedicated relay driver chip with built-in flyback diode protection, allowing for stable and strong driving performance. It also includes a flash-on, flash-off function with delay settings for opening or closing relays, offering greater flexibility for time-sensitive control applications.
  • Durable Enclosure & Easy Installation:Designed for industrial environments, the module comes in a sturdy ABS rail-mount enclosure, ensuring easy mounting and safe operation. The enclosure is optimized for rugged environments and supports quick installation. The device also includes 4 LEDs and network indicators, providing clear status updates on MCU activity and signal transmission, enabling quick troubleshooting and monitoring.
  • 79,99 € AUF AMAZON