I am struggling to get a value into a virtual tank sensor.
The plan is to use a Shelly blu ultrasonic sensor via MQTT but for now I am testing with an inject node.
I see the tank in the GUI but are not able to get it to display a value.
All i try ends in this error:
“Received invalid payload, expected an object with payload. Ignoring.”
Any advice?
Cerco MKII with 370 beta 49