I want to be able to monitor Temperature and Humidity using the Arduino board. Can anyone suggest a Temperature sensor which will work nicely?
or do I have to create a circuit to monitor temperature and pass the output to the Arduino board?
If I have to create a circuit can anyone suggest any beginner style temperature circuits?
Sparkfun has a combination humidity / temp. sensor.
A little pricy at 42$, but the advantage is that it is fully calibrated, something that can be difficult to do yourself.
Or you can just google "Arduino temperature sensor" = lots of info
check the playground and see there's a few guides on thermresistors
The word you should look for is "thermistor". Or, you could go for a digital version and get a DS18S20 temperature sensor that connects with I2C (the "wire" library): http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1230763968
the easy and cheap way is an termisistor check http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1229378123