Get notified when I don t receive mqtt messages anymore


I am working on a flow where I am connected to a mqtt topic and receive values of a sensor. Everything works fine but if sensor stop sending new values, then nodered display last value received forever. I want to do some kind of alarm like if since last message there is more than 1 minute pop up a message or something.
Any clue how can I achieve this?
Thanks in advance



The topmost thread when you posted this asks the same question and contains all the answers...

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Thanks a lot. Means my way of searching this was pretty poor since I couldn t find that topic. I will read it.
Thanks again