How to show DHT11 data on QIoT Dashboard ?

The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. This tutorial will show how to display - DHT11 data on QIoT Dashboard (using a Seeeduino with W5500 Ethernet Shield).

• In "IoT Applications", click "Add IoT applications"

• In "Create a New IoT application"：

  1. Enter a name for your IoT Application.
  2. The Rule name and Dashboard name will be automatically generated based on the IoT Application Name.
  3. Click "Create".

• In "Add Thing":

  1. Enter a name for the Thing (in this sample: "Thingname").
  2. "Custom" in "Thing Category".
  3. Click "Add".

• Click the "Thing Resources" button, and enter "Thing Resource".

• In "Add Thing Resource":

      1.  Enter a name for the resource \(in this example: "myTemperature"\).    
      2. Enter a resourceID.  \(The resource ID is used to create a topic in the QIoT broker. This ID should be unique for the device and no duplicates should be allowed for the same device\).    
      3. Click "Add".
  

• Click "Connect to device", and "in Thing Information" choose "MQTT", click "Next", and click "download JSON file".

• In the "Rule" window to set the "MQTT Message":

       1. Click "MQTT Message   
       2.  In"Uncheck "Use custom topic"   
       3. Choose the Thing "Thingname"  
       4. Click "Add", and choose "myTemperature" in "Resources"  
       5.  Click "Done", and "Save".
  

• After setting the Rule, open the Arduino and the JSON file, and then copy the code (username, clientId, host, password, and topic) into Arduino, respectively. After copying, upload the file.

• Return to the Rule tab, and connect the MQTT Message In and Dashboard.

• In the Dashboard tab, you could see a sample temperature.