# Check for connected clients on MQTT

**URL:** <https://discourse.nodered.org/t/check-for-connected-clients-on-mqtt/16294>\
**Category:** General\
**Created:** [4 October 2019 06:04 UTC](https://discourse.nodered.org/t/check-for-connected-clients-on-mqtt/16294 "2019-10-04T06:04:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![msalman](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@msalman](https://discourse.nodered.org/u/msalman)\
**Post date:** [4 October 2019 06:04 UTC](https://discourse.nodered.org/t/check-for-connected-clients-on-mqtt/16294/1 "2019-10-04T06:04:13Z")

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Hi all, I have a question  
I am working on a flow to create dashboard which represents different switch status from 3 nodes (esp8266) using mqtt  
I also wanted to check if the nodes are alive or not? how can this be possible?

any suggestions?

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [4 October 2019 06:23 UTC](https://discourse.nodered.org/t/check-for-connected-clients-on-mqtt/16294/2 "2019-10-04T06:23:08Z")

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Have a search for LWT MQTT