with this addon/docker i finally succeeded. (Get tuya local key via SmartLife/TuyaSmart QR login (No Tuya IoT Developer Account) - #4 by vineet)
but due the fact that the smartlife app gives stranes values i see in home assistant also strange values:
Sensoren
Base Battery
99%
Base Temperature
3.601,7 °C
Probe 1 Advance Value
Onbekend
Probe 1 Ambient Temperature
806,0 °C
Probe 1 Battery
100%
Probe 1 Internal Temperature
803,9 °C
Probe 1 Target High Temperature
Onbekend
Probe 1 Target Low Temperature
Onbekend
Probe 2 Advance Value
Onbekend
Probe 2 Ambient Temperature
804,9 °C
Probe 2 Battery
100%
Probe 2 Internal Temperature
803,9 °C
Probe 2 Target High Temperature
Onbekend
Probe 2 Target Low Temperature
Onbekend
Probe 3 Advance Value
Onbekend
Probe 3 Ambient Temperature
79,2 °C
Probe 3 Battery
100%
Probe 3 Internal Temperature
817,4 °C
Probe 3 Target High Temperature
Onbekend
Probe 3 Target Low Temperature
Onbekend
Probe 4 Advance Value
Onbekend
Probe 4 Ambient Temperature
-38,5 °C
Probe 4 Battery
100%
Probe 4 Internal Temperature
-48,3 °C
Probe 4 Target High Temperature
Onbekend
Probe 4 Target Low Temperature
Onbekend
what can I provide to give more details?