Help with a momentary contact switch Answered
Hi everyone. I'm currently working on a new Instructable, and I've hit a small wall. What I'm looking for is a momentary contact switch that closes for a second, then opens again on its own independently of the actuator -- and I can't quite figure out how to do it.
To clarify, here's the operation:
You lift the receiver (or handset, or whatever you like to call it) on an old telephone, and the buttons -- normally held down by the receiver -- lift up to create the contact so the telephone knows you've answered and the call connects. Well, this phone isn't going to be connected to the telephone network any more, but what I want is for a contact to be closed momentarily when you lift the receiver, and then opens again automatically on its own even if you haven't put the receiver back down.
I also want the same contact to be made when you eventually do put the receiver back down -- so you replace the receiver, a contact is made momentarily, and then opens again on its own, even though the receiver buttons remain down.
I hope that makes sense, and that someone has a bit of advice on how to achieve this. Thanks in advance!
EDIT: Been continuing my research, and found the following: http://www.simprojects.nl/toggle_to_momentary.htm
Can anyone confirm if this will achieve what I'm looking for? Thanks again.