觀察筆記

Lesson 3 Connect your device to QIoT Suite Lite using MQTTS

In Lesson 2 , we complete deploy sample code to your device .In this lesson, you will learn how yo use sample code to connect to QIoT Suite Lite.

And there are three parts：

A: Generate resource info inside QIoT Suite

B: Download sample code

C: Other Protocol

Part A :Generate resource info inside QIoT Suite

• Click the "Connect a Device":

• Choose MQTTS and click "Generate a Device Certificate" :

• In "Download the files to connect", click the links to download the "Device Certificate", "CA Certificate", and "Private Key" to your PC. Do not rename these files. Click "OK".
  


• Click "Download JSON file".

Part B :Download sample code

• Download sample code from QNAP QIoT Suite Lite GitHub.
  
  
  
  • URL: https://github.com/qnap-dev/qnap-qiot-sdks
  
  
  • Path: python/device/mtk-linkit-7688-duo/examples
  
  
  
  


• Set the data structure like as in the following image.
  
  
  
  • The "resource.json" file must be saved in the "res" folder, and the device Certificate, CA Certificate, and Private Key must be saved in the "ssl" folder.
  
  
  
  

• Open Terminal application (such as WinSCP) on your PC and login to your device.
  
  
  
  • LinkIt 7688 only supports the SCP protocol. SFTP can be installed  using "openssh-sftp-server".
    
    

    root@mylinkit:~# opkg update
    
    root@mylinkit:~# opkg install openssh-sftp-server

    
    
  
  
  
  

• Open a Terminal application (such as PuTTY) on your PC.Connect to your device by using SSH and enter the folder where the sample code is stored (for example: /home/root/bundle).

• To Install sample code dependencies, enter the following commands:
  
  

  root@mylinkit:~# cd {folder where you put sample code}
  
  root@mylinkit:/home/root/bundle# pip install -r requirements.txt

  
  


• Run the sample code
  
  

  root@mylinkit:/home/root/bundle# python mqtt.py
  
  

  
  


• The device will send a message to the topic "temp" (or the topic you defined)

Part C : Using another protocol

• Click "Connect a Device".

• You can select another protocol.

• Connect to your device using SSH, and enter the following commands:
  
  

  root@mylinkit:~# cd /home/{{user}}/bundle
  
  root@mylinkit:/home/root/bundle# pip install -r requirements.txt
  
  
  
  // mqtt(dont' need certificate,just put JSON file to "res" folder):
  
  root@mylinkit:/home/root/bundle# python mqtt.py
  
  
  
  // http
  
  root@mylinkit:/home/root/bundle# python http.py
  
  
  
  // https
  
  root@mylinkit:/home/root/bundle# python https.py
  
  
  
  // coap
  
  root@mylinkit:/home/root/bundle# python coap.py
  
  

  
  


• In next Lesson ,we will integrate Power BI to visualize senser data . Lesson 4 Integrate Power BI

Please visit QNAP github for QIoT Suite Lite sample code

"QNAP-Github"