Extract temperature from an MQTT string

[sparky70 (tony)]

MQTT JSONPath Transformation to extract values from multiple DS18B20

Hello Folks, I am a silent reader sice few months. My home automation is growing week by week. A lot of function I could implement by using this forum or other sources. But now I am at a point where I need some support from an expert. I am using a nodeMCU with tasmote FW and 3 DS18B20 Temp. Sensors. All the sensors are connected to one GPIO. So the MQTT topic contains all three sensors in it. All the have different temperatures to display. An somehow I have to extract the right sensor and…

Also look at this

I’m a beginner in all this ,this may help