Compact 2-channel relay board with Ethernet, Wi-Fi, and RS485/CAN support, ideal for smart home and industrial automation.
Product Overview
The DT-R002 Ethernet Relay Module is a versatile 2-channel relay controller designed for seamless integration into IoT, industrial automation, and smart home systems. It supports multiple communication protocols, including MQTT, Modbus (RTU/ASCII/TCP/UDP), CoAP, HTTP GET, TCP/UDP, and SNMP, ensuring compatibility with various platforms like Domoticz, Home Assistant, OpenHAB, and Node-RED . With interfaces for Ethernet, Wi-Fi, RS485, and CAN bus, it offers flexible connectivity options. The module features two digital inputs and two relay outputs (NO/NC), making it suitable for controlling and monitoring devices remotely. Its compact design (87×68×27mm) and DIN35 rail-mountable case facilitate easy installation in control panels.
How to Use
- Power Supply: Connect a 12VDC/24VDC or 12VAC/24VAC power source to the module.
- Network Configuration: Use the integrated web server to configure network settings (IP address, protocols).
- Protocol Setup: Select and configure the desired communication protocol (e.g., MQTT, Modbus) via the web interface.
- Integration: Integrate the module with your automation platform (e.g., Home Assistant) using the configured protocol.
- Control and Monitoring: Use the platform’s interface to control the relays and monitor the digital inputs.
Frequently Asked Questions (FAQ)
- Is the DT-R002 compatible with Home Assistant?
- Yes, it supports integration with Home Assistant via MQTT or Modbus protocols.
- Can I use both Ethernet and Wi-Fi simultaneously?
- The module allows configuration for either Ethernet or Wi-Fi, but not both simultaneously.
- Does it support secure communication protocols?
- It supports standard protocols; for secure communication, additional configurations or external solutions may be required.
- Is there a mobile app for controlling the module?
- Control is typically achieved through integration with platforms like Home Assistant, which offer mobile apps.
- Can the firmware be updated?
- Yes, firmware updates are possible; contact the manufacturer for instructions.
- What is the maximum current the relays can handle?
- Each relay can handle up to 1.5A at 12VDC.
- Is DIN rail mounting hardware included?
- The module comes with a DIN35 case suitable for rail mounting.
- Does it support over-the-air (OTA) updates?
- OTA updates are not specified; firmware updates may require a wired connection.
- Can I control the relays via HTTP requests?
- Yes, the module supports HTTP GET commands for relay control.
- Is there an SDK available for developers?
- Yes, an SDK with sample code in C#/VC.net is available from the manufacturer.
User Review Summary
Users appreciate the DT-R002 for its versatility and ease of integration into various automation systems. The multiple communication protocols and interfaces make it adaptable to different setups. However, some users note that initial configuration may require a learning curve, especially for those new to networked relay modules.
Comparison with Competing Products
- Devantech ETH002-B
- Relays: 2 x 16A
- Protocols: TCP/IP, MQTT
- Interfaces: Ethernet
- Price: Approximately $50.89
- Pros: Higher current capacity per relay
- Cons: Lacks Wi-Fi and RS485/CAN support
- Waveshare 8-Ch Ethernet Relay Module
- Relays: 8 channels
- Protocols: Modbus RTU/TCP
- Interfaces: Ethernet
- Price: Approximately $39.99
- Pros: More relay channels
- Cons: No Wi-Fi or RS485/CAN support
Technical Specifications
- Model: DT-R002
- Dimensions: 87×68×27mm
- Power Supply: 12VDC/24VDC or 12VAC/24VAC
- Current Consumption: 1.5A @ 12VDC
- Power Consumption: 2W
- Relay Outputs: 2 channels (NO/NC)
- Digital Inputs: 2 channels
- Communication Interfaces: Ethernet (10/100 Base-TX), Wi-Fi, RS485, CAN
- Supported Protocols: MQTT, Modbus RTU/ASCII/TCP/UDP, CoAP, HTTP GET, TCP/UDP, SNMP
- Operating Temperature: -10°C to 85°C
- Mounting: DIN35 rail-mountable case
Brand or Manufacturer Info
The DT-R002 is manufactured by Shenzhen Dingtian Technologies Co., Ltd., a company specializing in IoT and automation hardware solutions. They offer a range of relay modules and controllers designed for integration into various control systems.
Purchase Recommendations
- DTWonder: DT-R002 Ethernet Relay Module