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  • 23-04-2004 10:43am
    #1
    dogz
    Closed Accounts Posts: 358 ✭✭


    can somebody please help me. i need to wire up a reley with 2 switches and 2 led's, so that when sw1 is pressed led1 goes on and stays on andwhen sw2 is pressed led1 goes off and led2 comes on and stays on.And vice versa

    I need to use an 8 pin relay dont know exactly what one but i havnt got a clue how to wire it at all. can somebody please help me with a diagram or something I need it by next thursday and am beginning to panic.

    Thanks n advance for your help


Comments

  • #2
    leeroybrown
    Closed Accounts Posts: 7,563 ✭✭✭leeroybrown


    College project? I presume it's a demo circuit to show how a low voltage (TTL) electronic circuit can be used to control higher voltage electronics?

    This should probably be on the HW Tweaking board.
    (Sci / Tech > Electronics > HW Tweaking / Modding )

    Get a data sheet for your relay to get the pinout and other information. The part number of the relay will probably be on it somewhere. Failing that, determining the functionality of a simple relay with a few wires and a power source shouldn't take that long.

    Your relay probably won't be able to remember a signal so consider using D Flip flops as memory elements and trigger them using your switches. If bounce is an issue on the switch construct a debounce circuit.


  • #3
    dogz
    Closed Accounts Posts: 358 ✭✭dogz


    Yea its for a project but nothing like that its much simpler. Basically it just needs to hold a led on when a magnet passes a reed switch and off when it passes the opposite switch. its a Double Pole Double Throw relay.

    as i said i havnt got a clue how to wire these i have never needed to wire 1 before


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