well tried this one, and instead of a pulse it puts out 7.3 volts all the time,
Back to square 1, unless i can get a longer pulse in that other one.

 

planty,

When you say you need a bit longer time on the pulse...what do you mean...?
It really simplifies things if you can tell all of us what you need...from the start. You never said what you where you were going to do with "a" pulse...just that you wanted one.

The devil is in the details.

Ken

__________________
"To invent, you need a good imagination and a pile of junk."
Thomas A. Edison (1847 - 1931)

 

I wouldn't bet any money on it !

on1aag.

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right, I need to close the front electric windows for a ford escort, There is always power to the door motors, either when it is locked or unlock, like a flip flop,
With the vauxhall cars they are pulsed, and i have pcb's made up for this, when a pulse is recived from the deadlock the timer is activated for about 17 seconds and when the unlock pulse trips in it stop the timer, (safety feature)
But if you put the same circuit board to the ford car, it keeps triggering/reseting itself, so it keeps trying to close the windows.

or is there another kit that once you put constant 12v in then the timer will work for about 17 seconds and if it goes to unlock within that timed limit will stop.