Connect with us

Motor and limit switches.

Discussion in 'Electronic Basics' started by John Schiavone Jr, Nov 2, 2004.

Scroll to continue with content
  1. An easy question for all of you out there.

    For next Halloween, my wife wanted to hang a ghost from the porch. She
    would like it hooked to a motor and some limit switches. The ghost would
    come down to the trick-or-treater hit a limit switch and then reverse
    itself. What is th esimpliest/easiest way to do this. I don't have much
    experience with this. Thanks.

  2. Here's a circuit, with full notes.

    It was originally used in my Window Opener many years ago, but has
    various applications. You haven't said, but I assume you want the
    ghost to operate once (down and up) at the flick of a switch, rather
    than constantly. But in either case it should be relatively easy to
    adapt from the circuit shown. Note that at its simplest it uses just a
    SPDT relay (of appropriate voltage and current rating), two normally
    closed microswitches, and an operating switch. For longer lengths of
    lightweight wiring you might prefer to add a transistor trigger
    circuit, as shown. (In my case that went from a bedside switch to the
    heavy motor unit near the window.) Or, in some cases, you might want
    to trigger the effect electronically (e.g. by sound, light, a door
    opening, etc.)

    P.S "For next Halloween, my wife wanted..."
    Why the past tense? Was that just one request too many? <g>
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day