Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Circuit that i'm going to use as a bike alarm

  1. Nov 10, 2004 #1
    I have a circuit that Im going to use as a bike alarm. The problem is that I will need a tilt switch which acts like a push-to-break switch :confused: ....is it possible to get a switch like that? :uhh: ...or are there any alternatives???please reply...
  2. jcsd
  3. Nov 16, 2004 #2
    I bet you could use a mercury switch, it would be more of a movement alarm. Most of the ones that i have seen are just a small glass tube with mercury inside, and there are 4 contacts two near the middle, on opposing sides and one at each end. So you could wire it either as a tilt-to-close or tilt-to-open switch. (there is only enough mercury in the tube to connect two contacts at a time)

    I think you want a ON-(off) switch. It is the 3rd on down on this site: http://www.kpsec.freeuk.com/components/switch.htm
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook