Lee wrote:
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Oh,part of my project is to design a fridge temperature controller. ie. program the temp in the keypad and the fridge will keep at that temp.
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Hi ,
so you want to make a thermostate no problem but first goto www.specs.de/~danni our very own peter's site and practice with some projects then goto Ben Zijlastras site
http://members.home.nl/bzijlstra then come back with more questions .

good luck

sanjeev