Hi, i'm a little bit confused about the I2C and wiring library.
I need to use a sensor witch need 3.3v both on the Vcc and on the SDA-SCL.
From what i understood arduino has an internal pull-up resistor on SDA-SCL lines therefore their voltage is 5v, is this right?
If this is right all i need to do is to disable the internal pullups and use two external pull-ups resistor between SDA-SCL and the 3.3v to have SDA-SCL running at 3.3v right?
Well i think i will first use a level converter on SDA-SCL and then i will do further investigation, if anyone is interested i'll post the results here