<CUT>(I wonder what the 2 resistors + 1 capacitor there do, I will try to find its diagram)<CUT>
The resistors are I2C pullups and the cap is the decoupling cap for the chips VCC supply.
The resistors are I2C pullups
From what I remember, we need the 2 pull-up resistors per the whole I2C bus, and not for each component on the bus,so I wonder why they include it in many modules.They assume that the user does not know about the need for pull-ups on the bus?(and that their module is the only one on the bus?)
What happens when you connect several modules, to the same I2C bus,and each of them has the 2 pull-ups.. Is the problematic, or because the resistance is usually high, then we should not worry?
If only they manufactured this chip in Thru-Hole too, I could simply buy the chip, and skip the modules..