The GT2I2O is a MQTT / WIFI / ETHERNET / MODBUS / 4 input 4 output Controller unit

Product Overview

• Support multiple channel relay, On/OFF/Jogging/Delay.
• Support multiple interface RJ45/RS485/CAN/WIFI
• Support HTTP GET CGI/UDP/TCP Server/TCP Client
• 10/100Mbps ethernet, Auto-MDIX,DHCP ip,Static IP
• Local Button control(SelfLock/Jogging/Delay)
• WEB config and control
• Support password.
• Support Modbus-RTU/ASCII/TCP/UDP/WIFI
• Support Modbus-RTU Over TCP/UDP/WIFI
• Support Modbus-ASCII Over TCP/UDP/WIFI
• Support MQTT(Ethernet and WIFI)
• Support CoAP
• Support Domoticz
• Support Home Assistant
• Support Node-RED

Home Automation System Support:

Operating Manual for exsamples and configeration details

Operating manual

Modules

1. 2 input and 2 output Module
2. 4 input and 4 output Module

The configeration below is similar for both modules

Operating

Connect 12V to power supply V+ and V-

Connect to device wifi AP directely pw dtpassword

Configer wifi and MQTT details

got url in browser http://192.168.7.1 Login with admin admin
Now select settings and configure your wifi setting as shown in RED

Configure you MQTT

Select Relay Conect
Then enter your MQTT details as shown in the RED sections

Node-RED

Now lets controle the GT Relay and input module by connecting you Node-RED to your mqtt
Below is a working exsample to read the inputs and control the rlay outputs for the unit
Node red flow code can be downloaded here Node red exsample flow code

Node red exsample flow code

MQTT mwssage exsamples

To read input details subscribe to the following topic

Read input 1

/dingtian/relay5044/out/input1

Read input 2

/dingtian/relay5044/out/input2

Switch Relay one

/dingtian/relay5044/in/r1   message value  ON  or OFF

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