Versatile 8-channel relay board with Ethernet, Wi-Fi, RS485, and CAN interfaces, ideal for smart home and industrial automation.
The DT-R008 is an advanced 8-channel relay module powered by an ESP32 microcontroller, designed for both industrial automation and smart home applications. It supports multiple communication interfaces, including Ethernet, Wi-Fi, RS485, and CAN, and is compatible with platforms like Home Assistant, Domoticz, and OpenHAB. Its robust design and flexible connectivity make it a reliable choice for complex control systems.

How to Use
- Power Supply: Connect a 12VDC/24VDC or 12VAC/24VAC power source to the module.
- Network Configuration: Use the web interface or configuration software to set up network parameters. The module supports DHCP and static IP configurations.
- Integration with Platforms: Integrate the module with your preferred automation platform (e.g., Home Assistant, Domoticz) using supported protocols like MQTT or Modbus.
- Relay Control: Control the relays via the web interface, automation platform, or direct TCP/UDP commands.
- Safety Considerations: Ensure proper insulation and adherence to electrical safety standards when connecting high-voltage devices.
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Frequently Asked Questions (FAQ)
- What is the maximum current each relay can handle?
Each relay supports up to 10A at 250VAC or 30VDC. - Can I use this module with Home Assistant?
Yes, it is compatible with Home Assistant via MQTT or Modbus protocols. - Does it support PoE (Power over Ethernet)?
No, the DT-R008 does not support PoE. - Is the firmware open-source?
The module comes with proprietary firmware. Custom firmware installation may be restricted. - What is the operating temperature range?
The module operates between -10°C and 85°C. - Can I control the relays remotely over the internet?
Yes, with proper network configuration and port forwarding, remote control is possible. - Are there any built-in safety features?
The module includes features like IP watchdog and supports secure protocols for communication. - What is the size of the module?
The dimensions are 122mm x 87mm. - Does it support both NO and NC relay types?
Yes, it supports both Normally Open (NO) and Normally Closed (NC) configurations. - Is there a mobile app for control?
Control is typically achieved through integration with automation platforms rather than a dedicated mobile app.
User Review Summary
Users appreciate the DT-R008 for its versatility and reliable performance in automation setups. The multiple communication interfaces and compatibility with popular platforms like Home Assistant make it a favored choice. However, some users note limitations regarding firmware customization and the absence of PoE support.
Comparison with Competing Products
| Feature | DT-R008 | Devantech ETH008-B | Waveshare 8-CH Ethernet Relay |
|---|---|---|---|
| Relay Channels | 8 | 8 | 8 |
| Max Current per Relay | 10A | 16A | 10A |
| Communication Interfaces | Ethernet, Wi-Fi, RS485, CAN | Ethernet | Ethernet, PoE |
| Protocols Supported | MQTT, Modbus, HTTP, CoAP | TCP/IP | Modbus RTU/TCP |
| PoE Support | No | No | Yes |
| Firmware Customization | Limited | Limited | Limited |
| Dimensions (mm) | 122 x 87 | 133 x 74 | Not specified |
| Operating Temperature | -10°C to 85°C | -40°C to 70°C | Not specified |
Technical Specifications
- Model: DT-R008
- Dimensions: 122mm x 87mm
- Power Supply: 12VDC/24VDC or 12VAC/24VAC
- Current Consumption: 1.5A @ 12VDC
- Power Consumption: 5W
- Relay Type: 8-channel, NO/NC
- Communication Interfaces: Ethernet (RJ45), Wi-Fi, RS485, CAN
- Supported Protocols: TCP server/client, UDP, HTTP GET CGI, Modbus RTU/ASCII/TCP/UDP, MQTT, CoAP
- Operating Temperature: -10°C to 85°C
Brand or Manufacturer Info
Dingtian Technology specializes in developing advanced relay modules and automation solutions. Their products are known for integrating multiple communication interfaces and supporting various protocols, catering to both industrial and smart home applications.
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