the problem is to connect arduino uno with LCD module(I2C) + LM35 at sametime
I couldn't find any material about working with I2C + analog reference (internal). I am wondering if when it has been set analog reference internal, the I2C communication (A4, A5 pins )stays at 5V, or turns into 1.1V, or worse, I can't do that procedure.
I have bought this leveler. I am aking that question for avoiding any further equipment damage. http://www.ebay.com/itm/221215198834?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649