Adding Dehumidifier

i got a iTvanila Dehumidifier DU-L1. This device is able to connect via wifi. But mobile app only works if device is connected to internet.

I detect that this device have an Espressif chip/wlan device

Andybody know how i can control this via openhab?
I didn’t found any informations about api / soap and there are no open ports detected.

The app and the procddure for installation are the same like this device:

So i think it uses a universal wifi / interface for different devices