Quite happy with the results from the current setup, I decided to complete my collection of sensors with a WSTX3-TH to put on the front balcony.
As a free bonus, since I moved to the final version (from prototype breadboard to a PCB one with all the necessary pins properly grounded), I seem to receive the signal from a neighbouring sensor as well. With 3 temperature readings from outdoors, I think I'm covered for the winter!
Code is available on github :https://github.com/guillier/la_crosse_sensors
Schematic is quite simple:
Time to move on (and to concentrate on the main programme, maybe?)