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Member Since: October 22, 2014

Country: United States

  • Not too relevant here, but just in case, that's not how USB works. The two data wires carry the same signal as a differential pair, which allows for higher speeds and reduced noise. Data direction is negotiated in the protocol.

  • No. AFAIK, there aren't any techniques for multitouch with resistive touchscreens, and I'm pretty sure it's not possible.

  • EDIT—What I posted earlier seems to be inaccurate. See the table in this document: http://cache.freescale.com/files/sensors/doc/app_note/AN4528.pdf?fr=gdc

    It looks like it will go beyond its measurement range at about 5500 feet. It should be relatively accurate to within 1 to 2 feet in that range, but I'd encourage anyone who really wants to know to read the document.

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