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on off a device via computer

Discussion in 'General Electronics Chat' started by kashifsohail, Dec 25, 2002.

  1. kashifsohail

    kashifsohail New Member

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    dear gurus i wish to make an on/off switch which can be operated via PC
    plz let me know how can i do this magic

    thanks

    Kashif
     
  2. bogdanfirst

    bogdanfirst New Member

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    well, u would need a relay, a transistor, 2 resistors, a led, a doide and some proframming.....
    all u need is to conect it to the printer port and send a data to it,
    it has 8bit output, so u can make a simple 8 relay board, 8 switches ...
    but if u only need one, just make a simle amp for the relay and make sure of the conections.....
    that's why i recommend u a little bit mmore complicated switch, so it will be totaly safe for the computer....
    about the programming, u could use c, basic, pascal, bisual c, visual basic, etc....
    most of them work......
     
  3. kashifsohail

    kashifsohail New Member

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    any url

    dear fellows can any body point me to some practical link to accomplish the said job

    thanks

    Kashif Sohail
     
  4. dave

    Dave New Member

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  5. bogdanfirst

    bogdanfirst New Member

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    here's something....
    http://ourworld.compuserve.com/homepages/Bill_Bowden/page6.htm
     
  6. bogdanfirst

    bogdanfirst New Member

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