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@Blizzard
Hello all,
unfortunately, the suggested procedure does not seem to give clues for now.
I tried the configuration and the piece of code suggested by using different values of the resistors in my possession (200R, 470R, 680R, 1K, 4.7K, 10K) without triggering the "watch fired" message (the message appears iteratively, as expected, only by removing the resistor leaving the pin floating).
The "sentinel pin" (A1) mode has been configured as:
Note that also the "native application" continues to work properly, even when connecting the resistor between the sensor power pin and 3.3V power line supplied by the module, except when the connected resistor is 10K.
In this latter case, the converted temperature values are clearly incorrect (but return good immediately after the resistor is removed or replaced with a smaller one among those listed).
This type of resistor values seems to undermine the sensor acquisition and conversion capability...