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Thread: Alternative to Phidgets for Temperature Sensing

  1. #1
    Variable Bitrate
    Join Date
    Feb 2006

    Alternative to Phidgets for Temperature Sensing

    On my old computer I ran a 4 sensor pic controller board that read 4 DS1820s. They were hyper accurate and I was very happy. The board interfaced to the computer through a D9 serial port. Along comes the new computer and D9 serial is obsolete and only has USBs. So I purchased a Phidgets 1051 (single) temperature sensor and wrote a custom plugin for RR. I am not happy with the accuracy though. It sucks. The calibration factor needs to change as it gets hotter/colder and you have to come up with the calibration factor yourself. Also, the accuracy is +-1.8C or +-3.2F. That is not accurate enough when you want to know if the road is frozen or not.

    So I am looking for a USB solution that uses DS1820s or similar. Anyone know of anything?

    ---------- Post added at 10:45 AM ---------- Previous post was at 10:09 AM ----------

    Well, I did find a kit. I kinda wanted to purchase one this time rather than kit it but I'll keep looking.

    ---------- Post added at 11:03 AM ---------- Previous post was at 10:45 AM ----------

    and this:

  2. #2
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    Join Date
    Oct 2004
    just nab a usb 1-wire interface... and connect up DS1820s

    there are lots of choices, here is one...
    this i believe uses simple ascii commands

    ---------- Post added at 02:21 PM ---------- Previous post was at 02:16 PM ----------

    i do like DLP products

    "Did you test it in carwings??"

    Sun, Come shine my way
    May healing waters bury all my pain
    Wind, Carry me home
    The fabric of reality is tearing apart
    The piece of me that died
    Will return To live again

  3. #3
    Variable Bitrate
    Join Date
    Feb 2006
    Im an idiot. I just ordered a USB - rs323 converter cable. I could have saved a ton of money if I just thought of that in the first place.

    ---------- Post added at 11:37 AM ---------- Previous post was at 11:31 AM ----------

    I do like that Mouser solution. I think I'll go that way.

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