I have 2 devices that will use the I2C bus talking to an UNO. I understand that I need 1 set of Pullup resistors between the SDA/SCL lines and VCC.My problem is the 2 devices have different supply voltages. One is an LCD display that only has 3.3v supply and the other is ADS1114 A-D converter that will read a sensor powered off 5v, so I intended to use a 5V supply for this part.Can these 2 communicate on the same I2C bus?Where do I connect the pullup resistors to? 5v or 3.3v?Any help would be appreciated.
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