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HT9200

Discussion in 'Robotics & Mechatronics' started by mimo, Mar 22, 2004.

  1. mimo

    mimo New Member

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    HI.

    I was trying to interface the DTMF generator (HT9200) to tel line.
    I was able to hear the tones, but it's not dialing them!?!?!?!

    Any idea? Any circuit ?? :(
    I'm using an isolation transformer !!


    10x in advance !!
     
  2. falleafd

    falleafd New Member

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  3. falleafd

    falleafd New Member

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  4. dave

    Dave New Member

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  5. mimo

    mimo New Member

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    10x guys.....

    But the problem is not in the code...

    I'm able to hear the DTMF tones though the telephone line, but the problem is that HT9200 is not really dialing them.

    I think the problem is in the interface circuit between the chip and the line, and Holtek does not provide any help regarding this subject.....


    any idea ???
     
  6. falleafd

    falleafd New Member

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    I don't know what you did with your circuit, but David tell so clearly that


    You may visit his page and ask him for more because he did it well.
     
  7. Blander

    Blander New Member

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    I have same problem like you with HT9200B, it sounds (DTMF) but it does not dial. Have you already solved this problem?
     
  8. kubeek

    kubeek Well-Known Member

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    Really? TEN and a HALF years later? A more carefule examination tells me that mimo has not been here since 2004 and falleafd since 2008. You'd better start your own thread with more info on your circuit.
    (we really ought to move old threads into some kind of read only archive...)
    And I see I missed about ten days as well :rolleyes:
     

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