How to make a monetary switch into on off?

[silverphoenix]

Is there a way to do it? i want to use a vandal res switch to turn leds on and off, but the switch is monetary. I have some limited knowledge and I'd say a relay but any suggestions on what kind of relay and how to wire one up? I've never worked with them before except in cars which is very different.

 

[Mohonri]

What you need is a J/K flip flop or a T flip-flop. Use the momentary switch to provide clock pulses to the flip-flop, and put a power transistor on the output of the flip-flop to switch the power to the LEDs. Wikipedia is, as always, quite helpful.

 

[widefault]

How about this? Cheaper than a real bulgin, and does what you want. I have no affiliation with that seller, but I've bought from them before.

 

[silverphoenix]

sweet thanks

 

[cpemma]

4 different ways. The 555 circuit is simple if starting in the 'Off' state suits.