# Mqtt monitoring / syncing states, need bit of help

**URL:** https://discourse.nodered.org/t/mqtt-monitoring-syncing-states-need-bit-of-help/17105
**Category:** General
**Created:** [24 October 2019 19:30 UTC](https://discourse.nodered.org/t/mqtt-monitoring-syncing-states-need-bit-of-help/17105 "2019-10-24T19:30:51Z")
**Posts on this page:** 1
**Showing post:** 12

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### Author: ![krizniq](https://avatars.discourse-cdn.com/v4/letter/k/ec9cab/32.png) [@krizniq](https://discourse.nodered.org/u/krizniq)
#### Post date: [24 October 2019 21:54 UTC](https://discourse.nodered.org/t/mqtt-monitoring-syncing-states-need-bit-of-help/17105/12 "2019-10-24T21:54:11Z")

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@Colin  
how logic in Follow node would look like for three topics?

also, is this flow usable for one topic solution?  
one topic means two or more switches using same mqtt topic (there is still need to invoke cmnd, as they are broadcasting only /state/ when pressed physically)  
Or there is better to use something else?

Thanks!

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