jasonvanwyk:
Hi,
I'm very new to electronics, specifically physical computing.
my first real project I'm trying to take on is to build a weather station.
I want to hook up my humidity sensor (HH10D), and through the reading that I've done it seems that is communicates via I2C. my question is should i be using a resistor(s) when connecting it to the Arduino pins?
Only if you're having problems because of long wires, etc. Normally the devices have built-in resistors which are sufficient.