[werk_ag]

Good, thanks.

It just happened after the factory reset and the new v2 module:
the temperature went from 3.7 ° C to - 83.2 ° C. After twenty seconds it returned to 3.7 ° C

It then remained for a while at 3.7 then rose to 121.6 while I am writing to you and then returned to 3.7 which is the real value

Thank you for the feedback.
On v2 of the Wireless_Sensors.ino I removed the anti-spike temperature routines, suspecting they could be the cause of the freezes. If the freezes now disappear, we are near to a definitive solution, as it is just a matter of rewriting the anti-spike routines in a better way.
Very occasionally I already also noticed those spikes on the temperature / humidity. At least now we have a clue to where to act.

Please keep me informed, also regarding the rainfall...

By the way, what WU says on their pages as be the Rainfall Rate, isn't true. In reality, it is the total Rainfall in the last hour, as stated on their upload protocol

rainin - [rain over the past hour)] -- the accumulated rainfall in the past 60 min
dailyrainin - [rain so far today in local time]