Tnx !!! Now it works I also tried to interact with the physical controls and an app that talks directly with the gateway. It works I only see a few problems with the update status of devices For example: if I turn off a light with the wall control (physical) in domoticz not always updating ...

cache cleared
password field appeared but i had this error in log

"no password set for a unofficial bticino gateway"

as the password is missing ....

beta version .6461

tested on:
bticino LN4890
bticino F425V

Perhaps you are interested in the new update of this code: I added the authentication algorithm for gateways unofficial (eg MH202 or LN4890). So now in the hardware page, simply set the password and it work :) The next step is the dimmer of lights. Now I see how to do, I will follow the advice of ...