what type of switch will normally be off/ open but when activated and held in the on/ closed position will then go back to the off/ open and rest when the switch is released?
I am wanting a to make a light flash once with each press of the switch and not stay on and then i want it to reset when released so that when switched the process will start all over again. so picture a gun you pull the trigger and a bullet comes out and when you release the trigger it resets and is ready to fire with the next pull or trigger in fact this is exactly what i want to do but instead of bullets I want a laser to flash.
there is a video of the part I would like to make at Min 4:00 & 7:45
youtube.com/watch?v=B0Yax6VeOF4
and this page you can see how small the switch is, how ever there is a bit more room if I had to make it a bit bigger.
http://www.glockstore.com/training-resources/training-devices/laser-module-only-for-ar-15
What type of switch would this be
555switches
Related Solutions
Why is this switch so expensive?
- The switch you reference is made to be used as an emergency stop via a length of pull cord (think of a stop-request cord on a transit bus ). It is made to latch open once pulled (i.e. it's a mechanical one-shot). It is more than a simple pull switch.
- It is rated IP67, which equates to dustproof and immersion proof. It is made for demanding industrial applications including washdown and nontrivial shock and vibration.
- It is a safety device made by a name brand company.
What other options are there for a NO pull cable switch? I'm open to ideas of building my own switch.
Many switches can be used as a pull switch depending on the specifics of your application. Something as simple as this can have a string tied to it such that the switch actuates when the string is pulled.
If you need the cable to break away from the switch, there are plenty of mechanical ways to accomplish this. A breakaway lanyard is made to open at a certain tension. There are also more repeatable "tension fuse" type devices based on magnets for various applications; take a look through a big industrial catalog for ideas.
With help of Latching switch and LDR we can do that.
Latching Switch
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Load Circuit
Replace Load with the circuit as shown above and push button (S1) with LDR.
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Best Answer
That's just a normally-open momentary closed switch, available in either push-button or spring-return toggle flavors, and you'd use it to trigger something like a 555 timer in order to keep the light turned on for as long or as short as you liked.
Like this: