I would like to test if a sensor is working, my schematic I have is the following [image] what I intend is through a test function if the sensor 3 is working and showing a message saying ok, and when it is off to say no ok, the function I did was this: var test=msg.payload; if (test=== "OK"){ …

Your function node that generates the query is doing this: msg.topic= "INSERT INTO testebase VALUES ('"+new Date().toString()+"','"+msg.topic["sensor1"]+"','"+msg.topic["sensor2"]+"','"+msg.topic["sensor3"]+")"; It is trying to pull the sensor values out of msg.topic. but the are not under msg.top…

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Test of a sensor

General

Colin 8 February 2019 17:01 7

Export the test flow by selecting the nodes and slicking Ctrl-E which will allow you to export to the clipboard, select Compact mode. Then you can paste it here for us to see exactly what you are doing. See this for how to format it so the forum formatting does not mess it up.

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Test of a sensor

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