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Display engine data on carpc

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  • Display engine data on carpc

    I put this in the OBD Forum cause i think there should at least be some experience here with what i want to do with my car.

    I have a pretty old car , the design being from 1985 although mine has been produced in 1990 and the engine design stems from the 1970's ... so you geussed it, no ECU in sight, just a single Solex Carburettor.

    For those of you in the states that have probably not heard of renault, it is a lightweight (800kg) car with a 125 bhp 1.4ltr turbocharged engine in standard configuration, due to larger carb jets, venturi and higher boost levels mine produces something more like 150-160 bhp.

    enough about the car, i am currently rebuilding it im my garage and i am fitting some extra gauges. I would very much like to display things like oil temp, water temp , air intake temp, exhaust temp, etc. anything not changing in a split second ( i have mechanical gauges for that - rpm, boost, AFR, oil pressure) on the lcd display of the carpc i want to build for this purpose.

    Does anyone have any thoughts on this ? i have not ran into any software or hardware allowing for this and searches on this forum have not given me all the answers.

    I suppose a DIY serial interface allowing for analog input from the various sensors should be available from some store somewhere although i have not found it yet, but as far as software i am in the dark and unable to write my own. (i draw the line at php/mysql)

  • #2
    perhaps someone knows of a pci board or serial interface that allows me to attach an analog sensor of for instance autometer or vdo to the PC ?

    i found someone willing to write some simple code for me, so all i need is the hardware now ..


    • #3

      I found this, is there anyone with experience here on this matter ?

      You'd think i wasn't the first with this problem if you count the number of posts covering the subject of displaying you-name-it via OBD-II and the number of people concluding their car doesn't have OBD-II ...

      The USB-IO16 contains 16 channels which could be indendantly configured as input or output. The input channels are designed to operate with potentialfree contacts. The contact is connected on one side with the correct channel and on the other side with signal ground (Gnd). The state of the contact is available on the PC.

      The contacts configured as output are directly connected with +5V when turned on. When this output is connected directly with ground, this will result in a short-circuit and a destroyed device! This is not covered by the guarantee! The circuit must be choosen in a way that the maximum current of this channel does not exceed 50 mA. The total power consumption of all output channels must not exceed 160 mA.

      The channels are assigned to the pins of the D-Sub plug in a way that with the use of a ribbon cable channels 1 to 9 are available with ground next to them:

      The size of the device is about 45 x 90 x 23 mm. The valid temperature range for using the USB-Humidity is -20 to +80 C. Using the sensor outside this range may destroy it. When temperature falls below 0C, the USB cable should not be dejected to avoid damage of the cable cover.


      • #4
        That doesn't seem to be for analog inputs, only digital. You would only be able to set up warning lights off of it. You might wanna have someone double check me on this. But:

        The input channels are designed to operate with potentialfree contacts
        2000 Subaru OBS

        Dell P3 @ 900 Mhz
        7" Lilliput TS w/DigitalWW in-dash mount
        80GB External HD

        I am Zero Bitrate....


        • #5
          I'll second that, it sure looks digital to me. after all, if it were analog they'd certainly want to mention that in the ad, as it would be a major selling point.
          But don't take it from me! here's a quote from a real, live newbie:
          Originally posted by Viscouse
          I am learning buttloads just by searching on this forum. I've learned 2 big things so far: 1-it's been done before, and 2-if it hasn't, there is a way to do it.