How to identify the status of a device connected via MQTT to Mosquitto?

T

tmkbl2021-10-30 14:23:51

Smart House

tmkbl, 2021-10-30 14:23:51

There are smart sockets that connect to the mosquitto mqtt broker installed on ububntu. Is there any simple way to track the state of the device (connected/not connected to the broker)?

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tmkbl, 2021-11-01
@tmkbl

I found the solution myself. It turns out that the firmware (tasmota) of my outlets has an LWT topic, in which messages are published Online or Offline. Everything is simple)).