I have several Tasmota Equipped ESP8266’s with multiple DS18B20 Sensors, if one of them goes down the order the remaining ones show up on the sensor channel of Tasmota changes. To get around this and with much searching of the forum together with a lot of experimentation I’ve come up with this which seems to work using the admin GUI.
Using the Admin GUI I edit the matt thing the sensors are connected to and create a Number Channel, in the MQTT state topic field add
where tele/myTasmotaESP is the topic of the Tasmota device.
In the Incoming Value Transformations field, found in the advanced tab add
where 123456789ABC is the Id of the sensor you want to read
Hopefully this will save someone much time