How correct variable?

[meloman27]

Hi!

Thank you for this great plugin! Please help, how correct variable from topic?

[WemosTemperature]
Measure=Plugin
Plugin=MqttClient
ParentName=mqttServer
Topic=tele/wemos_01/Sensor
Property=BME280.Temperature

This not working:

[MeasureWemosTemperatureCorr]
Measure=Calc
Formula=WemosTemperature - 1.3

[fvanroie]

What is the payload that is published on topic tele/wemos_01/Sensor and is WemosTemperature displaying the value from MQTT?

[meloman27]

topic: tele/wemos_01/Sensor:
{"Time":"2021-03-18T20:29:32","BME280":{"Temperature":29.0,"Humidity":18.6,"Pressure":742.6},"PressureUnit":"mmHg","TempUnit":"C"}

[mqttOutput]
Meter=String
AutoScale=1
MeasureName=WemosTemperature
Text=%1

Out: 29,0
I want to assign a variable to correct a out temperature digit.

[fvanroie]

You probably need

[MeasureWemosTemperatureCorr]
Measure=Calc
Formula=[WemosTemperature] - 1.3
DynamicVariables=1

Check https://docs.rainmeter.net/tips/measure-as-a-variable/

[meloman27]

Victory!

[WemosTemperature]
Measure=Plugin
Plugin=MqttClient
ParentName=mqttServer
Topic=tele/wemos_01/Sensor
Property=BME280.Temperature
Substitute=",":"."

[WemosTemperatureCorr]
Measure=Calc
Formula=[WemosTemperature] - 1.3
DynamicVariables=1

The plugin replaces the dot separator with a comma on result and the function Calc cannot process the value as a number. After replaces separator with function Substitute=",":"." function Calc worked. Please correct this bug on plugin.