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EMIC

ArchiverArchiver Posts: 46,084
edited 2004-07-15 00:05 in General Discussion
I just got my EMIC and its working fine except for one area - Aout.

I'm a bit confused - there is an Aout pin on the EMIC but the sample program
indicates the freqout for the DTMF example is being generated by the Stamp.

My question is, to hear the DTMF tones would I connect my Audio AppMod to the
Stamp Aout pin and ignore the Aout pin on the EMIC?

Thanks

Sid


[noparse][[/noparse]Non-text portions of this message have been removed]

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-07-13 17:30
    The Emic Aout can be directed to an amplifier, but most of the time the
    onboard amp will do fine. Just connect an 8-ohm speaker to the SP+ and
    SP- connections.

    To hear the DTMF tones generated by the BASIC Stamp you need to filter
    the output and run that to the Ain of the Emic.

    Along with the product docs, this article (from Nuts & Volts) will
    probably help you:

    http://www.parallax.com/dl/docs/cols/nv/vol5/col/nv108.pdf


    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office


    Original Message
    From: Newzed@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=d8WyxK_9nFu61_xHxjGoOzfL5bshShlU6c60A67oycMroNPDb_duIWRsa2lWmjyws7ZaFogJ]Newzed@a...[/url
    Sent: Tuesday, July 13, 2004 11:16 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] EMIC


    I just got my EMIC and its working fine except for one area - Aout.

    I'm a bit confused - there is an Aout pin on the EMIC but the sample
    program
    indicates the freqout for the DTMF example is being generated by the
    Stamp.

    My question is, to hear the DTMF tones would I connect my Audio AppMod
    to the
    Stamp Aout pin and ignore the Aout pin on the EMIC?

    Thanks

    Sid
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-14 02:20
    I'm using the EMIC in my past project, and I needed to build the
    filter (shown in the documentation) to get the DTMF working. Now it
    works just fine. If you have more detailed questions, let me know,
    but my page detailing my project will be up soon.

    Ryan


    --- In basicstamps@yahoogroups.com, Newzed@a... wrote:
    > I just got my EMIC and its working fine except for one area - Aout.
    >
    > I'm a bit confused - there is an Aout pin on the EMIC but the
    sample program
    > indicates the freqout for the DTMF example is being generated by
    the Stamp.
    >
    > My question is, to hear the DTMF tones would I connect my Audio
    AppMod to the
    > Stamp Aout pin and ignore the Aout pin on the EMIC?
    >
    > Thanks
    >
    > Sid
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-15 00:05
    --- In basicstamps@yahoogroups.com, "LostboY" <hangook21@y...> wrote:
    > I'm using the EMIC in my past project, and I needed to build the
    > filter (shown in the documentation) to get the DTMF working. Now
    it
    > works just fine. If you have more detailed questions, let me
    know,
    > but my page detailing my project will be up soon.
    > Ryan

    Ryan,

    I bought my Emic when they were first released by Parallax, but
    hadn't played with it yet. With all the recent discussion I decided
    to pop it onto my NX-1000 board and play around with it using some
    sample code. I must say, I am very impressed with this device for
    the cost/size/simplicity.

    Of course, Jon William's comment in Nuts & Volts 108 about the
    speech sounding like "Mother" in Aliens has me wanting to throw in
    my DVD to see how close it really is! =)

    Chris Savage
    Knight Designs
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