Hi all, I'd like to use an Arduino Ethernet as a datalogger for some sensors I have in my home (temperature, humidity, ...). The coding part (server side and client/Arduino side) is tested and works. :slight_smile: But now I'm wondering how many sensors the little Arduino Ethernet can use. On the …

Arduino Ethernet, how many digital pins can be used?

E40racer October 9, 2012, 9:24am 2

You could use an LCD with a I²C chip, only needs 2 pins. Thet are bit more expensive though.

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