I have a lot of an old PIC, the 16C72 and may use them in a temperature switch. I know the ADC is 8 bit but don't need real high accuracy in the readings.

What would be my best options (or maybe my only options), for a ready made temperature probe? I see some on Ebay -- one that is LM35 based and another DS1820. Others ?

Never messed around with temp sensors at all before. I do see some ready made code (or adaptable) for the DS1280 in the example programs.

Thanks kindly.