Energy Meter -Voltage/Frequency value read =49.16

I want the read the Data from Energy meter - frequency using the USB Port.& create the .CSV File
12.txt (341 Bytes)

but node-red showing the error.

Please help for this issue.


Have you been using postgredb with node-red?
From the Hamburger menu select Configuration Nodes and see if you have any unused nodes. If so open them and click Delete button to get rid of them.

Hey @Sandip86
Have you just imported the flow?
If so, the flow maybe using the node-red-contrib-re-postgres node, which you maybe don't have installed in your system.

Disable postgress and stop the nodejs server (no restart).
When the server is down start it so it can load the required modules.

This topic was automatically closed after 60 days. New replies are no longer allowed.