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mqtt [2020/04/09 08:17]
emozolyak
mqtt [2020/06/15 09:44]
atolstov
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 ====== MQTT protocol ====== ====== MQTT protocol ======
  
-MQTT or Message Queue Telemetry Transport is a protocol focused on applications in M2M (Machine-to-Machine Interaction) and IIoT (Industrial Internet of Things) systems. Information transfer to MQTT is implemented according to the Publisher/​Subscriber scheme and occurs through an intermediate server (Broker). The data source (Publisher) sends data to the server (Broker), other systems and devices, being Subscribers,​ read them from there.+MQTT or Message Queue Telemetry Transport is a protocol focused on applications in M2M (Machine-to-Machine Interaction) and IIoT (Industrial ​[[:iot|Internet of Things]]) systems. Information transfer to MQTT is implemented according to the Publisher/​Subscriber scheme and occurs through an intermediate server (Broker). The data source (Publisher) sends data to the server (Broker), other systems and devices, being Subscribers,​ read them from there.
  
 This method of interaction is well suited for event-based messaging, when the devices themselves periodically communicate. This method of interaction is well suited for event-based messaging, when the devices themselves periodically communicate.
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 {{ ::​mqtt_comm_tab.png?​direct&​400 |}} {{ ::​mqtt_comm_tab.png?​direct&​400 |}}
 +In the MQTT tab you set credentials neccessary to connect to the client. If you leave them emty, the client will connect to internal broker. ​
 {{ ::​mqtt_credentials.png?​direct&​400 |}} {{ ::​mqtt_credentials.png?​direct&​400 |}}
 +
 +The internal brokder have to be switch on in the settings menu:
 +
 +{{ ::​mqtt_server_checkbox.png?​direct&​400 |}}
  

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