Can I pick someon's brains please?

[lew247]

Perhaps you can start here.
http://www.rentron.com/PICX4.htm

Victor

Thanks, thats a great help although I had actually seen it when I was doing some research for this, what I dont get is how you use it as a thermostat though, monitoring a certain range of temperatures.
I'm using the 16f877 and the DS18B20 because thats what I have handy at the moment.