Temp display without Microcontroller?

Discussion in 'The Projects Forum' started by jcbeck84, Sep 21, 2009.

  1. jcbeck84

    Thread Starter Active Member

    Dec 20, 2008
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    I need to display the temperature from a thermistor or other probe type onto a set of 7 segment displays, problem is I have no experience with programming micro-controllers. I need to display the temp between about 0 to 200 degrees F. Is there a simple circuit to accomplish this or maybe something similar made by a manufacturer?
     
  2. k7elp60

    Senior Member

    Nov 4, 2008
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    69
    There are some temperature sensors that have an output in millivolts/degree. For example if the temperature is 72 degrees the output would be 72 millivolts. Connecting directly to a small 3 1/2 digit digital voltmeter the temperature reads directly in volts. If this would be helpfull I can get more specific about parts and connections.
     
  3. jcbeck84

    Thread Starter Active Member

    Dec 20, 2008
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    It needs to be a stand-alone circuit from temperature probe to readout because it will be permanently mounted for continuous operation monitoring. It would be nice to have a high temp warning light come on at a certain temp but I will worry about this once I am able to actually see the temperature.
     
  4. k7elp60

    Senior Member

    Nov 4, 2008
    478
    69
  5. jcbeck84

    Thread Starter Active Member

    Dec 20, 2008
    46
    0
    Ah, thank you very much, I should be able to find one of these to fit the bill.
     
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