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一、Device connection

Take mqttfx as an example, download address://ci.iotn2n.com/shuwa/oem/mqttfx.zip

1. Configure connection

• Broker Address:132.232.119.105
• Broker Port:1883
• Client ID：Fill in the device ID
• User Name Password：Rule engine configuration
  such as:

   SELECT clientid, connected_at FROM "$events/client_connected" WHERE username = 'ammeter'

2. send messages

• topic：Fill in the device release topic
• Sending content: the physical model json string of the product to which the device belongs
• Sending {"electric_fr":99}

3. Channel view log

• Select aisle, and subscription log
  
• Print log when mqtt connects
  
• Print log when mqtt sends a message
  
• Print log whenever mqtt is disconnected