- 25 Posts. Joined 9/2013
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Anyone ever build a microprocessor based thermometer ?
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No, but I just did an ebay search and it came up with <50 items. A search for arduino came up with 15,000 items.
Arduino looks to be better supported at least on ebay. Propeller may be a superior product (idk) but it will be easier for you if you use off the shelf shields, etc.
Anyway, you are looking at 2-10$ per thermocouple, depending on type, etc, and 3.50 (maybe 7$ i forget) for a max5565 (iirc) chip plus a multiplexer chip and boards, watertight enclosure (10$ at home depot)
That said Im not sure why you would want more than one or two thermocouples (not in meat) in the smoker. Yeah you will have hot spots, etc, but id assume thats constant over time, no need for realtime monitoring, you cant control for it. Once you know where they are, you can account for them.