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Thread: Can someone explain proper USB cables

  1. #1
    Fuel Injected! EDZIP's Avatar
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    Can someone explain proper USB cables

    Recently bought a SparkFun FTDI Basic Breakout - 5V card and am not clear as to wiring for the 16188051 PCM.

    This is how I made my LT1 cable with FTDI232 card (video below) and it works about 97% of the time, now I want to make another cable using the Sparkfun FTDI Basic Breakout board since I see that it has good reviews on this forum.

    https://www.youtube.com/watch?v=c7doKzdQYpg

    Reading the comments in that video some guys don't use the resistor or diode?

    Then I read about the difference between a USB charging and "data" cable here:

    https://www.quora.com/What-is-the-di...d-a-data-cable

    Again resistors are brought up....any clarification is appreciated, ie which cable, resistors or no resistors etc
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  2. #2
    Fuel Injected! steveo's Avatar
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    no resistor or diode. rx and tx tied together for data, and ground is ground.

    normal usb cable. (if you use a charging cable, you'll know, there will be no data...)

  3. #3
    Fuel Injected! EDZIP's Avatar
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    Quote Originally Posted by steveo View Post
    no resistor or diode. rx and tx tied together for data, and ground is ground.

    normal usb cable. (if you use a charging cable, you'll know, there will be no data...)
    Thanks

    Kinda brought up the charging vs data cable situation since I see posts occasionally where someone can't get their hardware to work...get the correct USB cable.

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    Fuel Injected! kacy's Avatar
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    a working driver can also be an issue, I have one that stays connected fine while parked but, while driving it disconnects and reconnects alot.

  5. #5
    Fuel Injected! EDZIP's Avatar
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    Quote Originally Posted by steveo View Post
    no resistor or diode. rx and tx tied together for data, and ground is ground.

    normal usb cable. (if you use a charging cable, you'll know, there will be no data...)
    FYI: Now works 100% as outlined above.

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