HiveMQ

example integration with Cobra/PowerCable/PowerPDU4PS + HiveMQ public broker + MQTT Dash Android App

cobra MQTT-flex configuration: { {

   "config":{
       "broker":{
           "url":"broker.hivemq.com",
           "protocol":"mqtt",
           "port":1883,
           "ssl":false,
           "type":"generic",
           "username":"freedom",
           "password":"peace|LOVE|empathy4ALL"
       },
       "subscribe":[
           {
               "topic":"netio/${DEVICE_NAME}/output/1/action",
               "qos":0,
               "target":"OUTPUTS/1/ACTION",
               "action":"${payload}"
           }
       ],
       "publish":[
           {
               "topic":"netio/${DEVICE_NAME}/output/1/state",
               "qos":0,
               "retain":true,
               "payload":"${OUTPUTS/1/STATE}",
               "events":[
                   {
                       "type":"change",
                       "source":"OUTPUTS/1/STATE"
                   }
               ]
           },
           {
               "topic":"netio/${DEVICE_NAME}/output/1/load",
               "qos":0,
               "retain":false,
               "payload":"${OUTPUTS/1/LOAD}",
               "events":[
                   {
                       "type":"timer",
                       "period":5
                   },
                   {
                       "type":"delta",
                       "source":"OUTPUTS/1/LOAD",
                       "delta":1
                   }      
               ]
           }
       ]
   }

} }

HiveMQ connection settings (just to check, that data are being send towards internet):

Android App MQTT Dash (you can use any other, of course): https://play.google.com/store/apps/details?id=net.routix.mqttdash&hl=en