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What is IR buddy used for? — Parallax Forums

What is IR buddy used for?

ArchiverArchiver Posts: 46,084
edited 2003-02-19 16:58 in General Discussion
Hi folks.

Is the IR buddy mainly for robotics (distance measurement) or for
Stamp to Stamp communication?

Has anyone tried to use IR buddy for Stamp to Stamp communication?
Is this possible? What are the limitations? Distance? Reliable
data transmission? Must be line of sight? etc.

If anyone has used it for communication, I would really appreciate
some insight.

Good stamping...

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-02-18 13:16
    The IR Buddy can be used for Stamp-to-Stamp communications and the
    transmission and reception of Philips RC-5 remote codes. You can download
    the documentation to get an idea of what is possible with the IR Buddy.

    Since trasmission is via infrared light, transmission distance will vary with
    environment.

    -- Jon Williams
    -- Parallax


    In a message dated 2/18/2003 6:43:16 AM Central Standard Time,
    basicstampede@y... writes:

    > Is the IR buddy mainly for robotics (distance measurement) or for
    > Stamp to Stamp communication?
    >
    > Has anyone tried to use IR buddy for Stamp to Stamp communication?
    > Is this possible? What are the limitations? Distance? Reliable
    > data transmission? Must be line of sight? etc.



    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-02-19 16:58
    Hi.
    I've recently become a proud owner of the IR Buddy.
    I bought it to let my two SumoBots talk to each other.
    Since I'm still working up what it can do, here's
    what I've learned so far.

    It uses a single remote control protocol -- the
    "RC-5 Phillips" -- an inexpensive Radio Shack remote
    can talk this. I don't think it does any other protocol,
    so it can't be used as a general purpose remote for TV or
    VCR. It buffers up to 4 key-presses (8 bytes) -- which
    look like a 'host' byte and a 'key' byte. These bytes
    can be read when the 'master' is ready for them.
    Note the Remote control put out 'host' 0 for TV commands,
    '5' for VCR commands -- I expect to use 'host' to
    identify which 'bot' was talking. I also want to
    use the Remote to command both 'bots.

    The Parallax package includes 2 units. They connect
    with +5, Gnd, and a single Data pin, used for both
    commands from the BS2 and data back to the BS2.
    Published range is 50 feet -- haven't verified this yet,
    but they do seem to work well so far.

    Hope this helps.

    --- In basicstamps@yahoogroups.com, "basicstampede
    <basicstampede@y...>" <basicstampede@y...> wrote:
    > Hi folks.
    >
    > Is the IR buddy mainly for robotics (distance measurement) or for
    > Stamp to Stamp communication?
    >
    > Has anyone tried to use IR buddy for Stamp to Stamp communication?
    > Is this possible? What are the limitations? Distance? Reliable
    > data transmission? Must be line of sight? etc.
    >
    > If anyone has used it for communication, I would really appreciate
    > some insight.
    >
    > Good stamping...
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