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sundanceuk sundanceuk is offline


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  1. sundanceuk
    18-04-2017 14:16 - permalink
    I got ya now, just with your earlier posts regarding the 3914. Also I only know the 3914 as a dedicated display driver, but I can see your idea on adapting the temp gauge. Good idea as it will suit the car better than my programmable display.
    I think I would try to mod the oil gauge instead and fit it where the clock is and lose the clock.
    My sensor, which is I suspect, the same as yours has come.
    I will be testing it next week and getting some voltage readings for known pressures.
    Will post a chart up, but they should be very accurate, as I will use my calibrated pressure switch to monitor the process.
    Good luck with the project.

  2. Incony
    17-04-2017 21:51 - permalink
    sundance i am not using leds... your not thinking straight.

    i aqm using resistors instead of leds...

    each step of the 3914, goes low... earth... i connect a resistor to each step of a known
    value... and the other ends are connected to the gauge.. so for each step the lm3914 make from 0 to 2v plus ( 0 to 15 psi from the transducer ) the gauge sees a different value,, and.. i know those values now...


    instead of position ten on on the 3914 lighting an led... it takres a 10 ohm resistor to ground.. and the meter will read high..

    that high will be about 2v or therebouts from the transducer.. or as i set it.. since i dont yet what the transucer output in volts is yet for 15 to 16 psi..


  3. sundanceuk
    05-09-2015 12:23 - permalink
    MG TF Enthusiast

  About Me

  • About sundanceuk
    Where did you hear of this site?
    Google Internet Search
    What make of car do you drive?
    MG TF 160
    Any modifications to your car?
    Your Country
    Great Britain
    MG TF owner for 11 years
    Meccano modelling, My TF
    Electrical Maintenance Engineer


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  • Last Activity: Today 08:17
  • Join Date: 04-09-2015
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