Relay RS-232

Discussion in 'The Projects Forum' started by electrofreak3000, Apr 16, 2011.

  1. electrofreak3000

    Thread Starter New Member

    Apr 16, 2011
    2
    0
    Hey everybody,
    I have a circuit mounted with relays, four channels. It´s connected to the computer by an RS-232 port, female on the circuit and on the computer. But when I connect it, all the four relays are activated at once and I don´t know how to change it. :confused:
    I´d like to do it with visual basic.
    If anyone knows how to do it please tell me. If someone needs a schematic or a picture just say it.
    Thanks
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    So far, you have all the information about the circuit. If there is a manufacturer's name and number on the PCB, you may be able to get some information about it.
     
  3. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
    What is the point of a post like this. Did you think we'd lay our hands on our monitors and perform a Vulcan Mind Meld? Of course you should post all available information regarding your relay board.
     
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