For temperature for a beginner, I imagine you'll start with a thermistor, check out this post:

http://forums.netdui...ch__1#entry4703

-- You can replace the potentiometer with a thermistor; all of this stuff should be available at radio shack; what country are you in?

Thanks for replying. I'm in the UK (I must update my profile).

I'm a .net developer who's completely new to the world of hardware. I've recently purchased a netduino plus and was trying to think of what project to do after 'blinky'. Does anyone know of a starter kit I could purchase? I was thinking of building a simple thermometer with an LCD screen. Does anybody have any ideas where I good get the suitable bits 'n' pieces? Thanks Adrian