my name is Steffen, and I am new to Node Red and this board.
I am also not very used to this JSON stuff. Actually I am very blind. Maybe anyone can help me.
I got an MQTT message payload string which looks like this
How can I change it, so that a dashboard gauge can handle the value as int. So I am interested in the -161 only. it can have positive and negative values up to int32 range. I would like to use a function block or direct entry in dashboard gauge If possible.
I am sure, this is very simple, but I don't get it...
thanks in advance,