Re: Off topic = apple Ipad 2 is useless to me for my sat observing

From: Cláudi Martins (
Date: Sat Mar 05 2011 - 03:30:45 UTC

  • Next message: Russell Eberst: "2011MAR4.OBS"

    On Fri, 04 Mar 2011 19:08:29 +0200 "Thomas Goodey" <> wrote:
    > ipads-missing-sd-card-slot-and-usb-port-adapters/
    > (and then, obviously, a USB to serial adapter; isn't it ridiculous 
    > that scopes still run on RS-232C?) (except for my Vixen)
     Well, I don't think it's that ridiculous. Devices like these are
    designed (or at least should be) to be easily hackable. It's difficult
    to beat something as simple as RS-232 and, for the task at hand works
    as well and is as reliable as it was 25 years ago.
     Sure, USB is all fancy and fast, but it does take a relatively huge
    amount of transistors inside a chip to implement it. RS-232, on the
    other hand can be handled with a handfull of components and you could
    easily retrofit some old equipment to work with your new telescope.
     Don't get me wrong, I'm all for progress and better interfaces, but
    why put away something that works well, is simple -- and simple is
    reliable -- and is easily hackable? And USB to serial converts are dirt
    cheap nowadays anyway.
    Best regards
    Seesat-l mailing list

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