Hey Rui and Sara,
I hope my message finds you well after all our cellebrations between Christmas and the new year!
In the break, I did stumble over Digital Potentiometers from Microchip and other suppliers.
Having the possibility to control a circuit with a digital potentiometer remotely via ESP32, would be a cute asset, wouldn‘t it?
Here I would encourage you both to create an article of the application of a digital potentiometer.
Best wishes for your/our ESP-Chánnel,
Here is a link from Elektor, but it might require membership:
This device is a relatively old one.
Another DIP8 sample from MAXIME:
and also DIP8 from Microchip:
Best from your