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  • sirlinium
    Participant
    April 13, 2015 at 3:15 pm
    Post count: 3
    #3655

    Hello,

    I am currently working with the osPID and have a few issues.

    I am using an arduino Uno and breadboard in order to prototype.

    I would like to use a thermistor (see datasheet: http://docs-europe.electrocomponents.com/webdocs/0ef3/0900766b80ef3fe6.pdf ).

    My LCD is well working, and seems that everything is fine… but my temperature “I” in dashbrd is allways 0 (and consequently “O” at 100 when “S” is higher than 0.
    When I use the #define USE_SIMULATION by uncommenting it, it seems to work fine as it is fluctuating.

    As I am using an arduino uno, I changed “const byte thermistorPin = A4;” to use the A4 pin. (for temp input v110 and v120).

    There (allready in io.h)

    byte inputType = 0;
    
double THERMISTORNOMINAL = 10000;
    
double BCOEFFICIENT = 3988;
    
double TEMPERATURENOMINAL = 293.15;
    
double REFERENCE_RESISTANCE = 10000;

    should I change the inputType ?
    I have put 10000 as my thermistor is 10k, is that right ?

    I hope you will be able to help me 🙂

    Thank you very much 😀

    rocketscream
    Keymaster
    April 23, 2015 at 4:43 am
    Post count: 65
    #4097

    Hi,

    inputType = 1 should do the trick to use the thermistor instead of the thermocouple interface.

    sirlinium
    Participant
    April 23, 2015 at 8:21 am
    Post count: 3
    #4098

    Thank you for your answer, but it seems not working 😐

    sirlinium
    Participant
    April 23, 2015 at 9:18 am
    Post count: 3
    #4099

    Hello,

    Thank you, but it is not working 😐

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