Anyone can shed some light on this?
1. I thought that using pullups to 3.3V (instead of 5V) were enough to make this work, as can be seen in the attached schematic.
2. About the 2K7 resistor: I started out with a 5.xK resistor, with the same results. In the datasheet it said to use 1K resistors... So if I just use higher value resistors, will I damage the chip?