AVR-Chat

> Instead of pot, you can use three buttons - UP, DOWN & ENTER if you 
> have a means to display the setting - like LCD, 7 seg LED or Terminal.
> If you are going for a blind controller then Pot is the solution.

There is no display attached. So I need some means of setting the 
temperature. A pot would require bringing the temperature probe 
to the desired threshold temperature and then making the setting.
Another thought was to user DIP switches. Example  7 dip switches 
could cover set a temperature between 0 and 128 Celsius in 1 degree
steps.

I have all of the various temperature sensors I mentioned on hand. To
me it's a matter of pursuing the solution that's easiest to deal with
in software. I also have ATtiny26 on hand. So the ADC is there, but I 
don't have to use it.

Adi