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Thread: DIY temp sensor

  1. #1
    Maximum Bitrate seanz0rz's Avatar
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    DIY temp sensor

    so i searched through the forums, but i really couldnt find anything in a diy form.

    so im wondering, what would i need to do a serial temperature sensor. id be happy with one temp sensor, but more would be nice.

    any ideas? just looking for a cheep diy project. dont want to spend money on something that i could build myself cheeper.

    thanks
    -Sean
    1998 Toyota 4Runner SR5 V6 4x4 in Evergreen Pearl Metallic, Lifted, Locked, and Armored. CarPc in custom console with molded touchscreen.
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  2. #2
    Newbie Lee232's Avatar
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  3. #3
    Maximum Bitrate seanz0rz's Avatar
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    hey, thanks, that will at least give me a start. the middle one looks like a pretty good option, and its not bad for that price.

    maybe ill just have to bite the bullet and pay money

    thanks for the reply.
    1998 Toyota 4Runner SR5 V6 4x4 in Evergreen Pearl Metallic, Lifted, Locked, and Armored. CarPc in custom console with molded touchscreen.
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    Photobucket is being updated, if a picture i posted no longer works, please PM me.

  4. #4
    Low Bitrate
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    You could use a thermistor as a simple temperature sensor because its resistance changes with temperature, then build a circuit around it

  5. #5
    Constant Bitrate TheLandYacht's Avatar
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    Even the "second one" costs quite a bit of money ($25 just for the circuit board you plug the sensors into)...then you gotta buy a serial cable, 4 sensors (& wire em up too)...by the time you do that, you're talkin $50.

    The item I looked at was the "Digital Doc 5+". It has 8 temperature sensors, allows for running 8 fans (no speed control, just on/off)...and runs on 12v. The newer model has usb support, but that's something I don't need as I wasn't plannin on usin it in the carputer anyway, more as a dashmounted digital temp display/fancontroller. And that's $59.

  6. #6
    Maximum Bitrate mushin's Avatar
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    How about building one of these? http://www.discovercircuits.com/S/s-temperature.htm

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