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Thread: Custom USB tyre pressure monitoring interface

  1. #1001
    Constant Bitrate lacning74's Avatar
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    well, no leaks so far after i tightened the cores. it is so addictive monitoring the pressures/temps.

    one issue, the TPMS doesn't work in my non-powered usb hub (i've tried a Logitech and Belkin one) with my other devices plugged in (XMPCR, touchscreen, usb modem). with the other devices plugged in, the TPMS disappears from the device list. can this be fixed? does it need a powered hub? kind of a pain with my laptop's limited ports.

    also, i think i'm having issues with the audio buffer Centrafuse plugin problems mentioned here. or has this been resolved?

  2. #1002
    Maximum Bitrate Robby BMW's Avatar
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    Yes, you need a powered hub or a free USB port in your PC.
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  3. #1003
    Who am I? HiJackZX1's Avatar
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    Quote Originally Posted by Robby BMW View Post
    Yes, you need a powered hub or a free USB port in your PC.
    Lok, maybe this is why mine never worked on a Hub, if I am not mistaken, the hub I have been trying was not powered at the time. Now that all my hubs are powered, I will go ahead and try this again. In the past when I try connecting to non powered hub, I get a "Device not Recognized" prompt.
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  4. #1004
    Maximum Bitrate fixerofallthing's Avatar
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    Quote Originally Posted by Robby BMW View Post
    Yes, you need a powered hub or a free USB port in your PC.

    I installed mine on a powered hub and one day the power plug fell out and the receiver wouold not work and the only other item on the hub was bluetooth.
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  5. #1005
    Constant Bitrate lacning74's Avatar
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    oh well, no biggie. anyway, it's been a champ with hibernation.

  6. #1006
    Lok
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    VENDOR - Portal Media Lok's Avatar
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    @ lacning74, I am glad you got your TPMS up and working. The core issue is something that is out of my control as I rely on the sensor manufacturer to provide them with the sensors. All I can do on my end is test each valve stem before it is shipped. This is something we have made as part of the procedure to build each unit as we have had several reports of leaking valve stems. The valve stems are attached to a tool that forces about 100 psi throught the stem. We then place the end of the stem underwater to ensure no bubbles are coming up (bubbles mean leak). You will see more of this part of the procedure once I release the second part of the manufacturing video. Also those of you that are having presistent issues with getting the device to work properly out of hibernation I would recommend that you try the new hub available on the mp3car store. I have one on order myself as it looks like really good hardware and it should solve any issues with hibernation with use of its delayed shutdown contoller.

  7. #1007
    Constant Bitrate lacning74's Avatar
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    well my cores have held up well after i tightened them. do y'all loosen them after testing them? i wonder why they were loose in the first place. maybe my tire shop screwed (or unscrewed) with them?

    either way, i might never have noticed the leak from the loose core for a while cause the caps themselves seal pretty well. maybe you should include a core tool with the kits, or at least highlight the issue in the installation instructions.

    oh yeah, it's so convenient that you already learn the sensors. the fact your kit has pre-learned sensors and pre-tested cores convinced me to purchase your kit.

  8. #1008
    FLAC WuNgUn's Avatar
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    A lot of tire shops turn out or remove the core to deflate the tire rapidly in preperation of removal...

  9. #1009
    Lok
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    Quote Originally Posted by lacning74 View Post
    either way, i might never have noticed the leak from the loose core for a while cause the caps themselves seal pretty well. maybe you should include a core tool with the kits, or at least highlight the issue in the installation instructions.
    your kit.
    We tighten all cores before they leave the facility, I can only assume that your tire shop may have unscrewed them for tire prep.

  10. #1010
    FLAC WuNgUn's Avatar
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    This must be a pretty rare problem...
    I just had 2 new tires mounted and the tech pulled the cores out...they still seal fine after replacement.

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