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I actually need a pulse, one for about 2 seconds when the ignition is turned on and another pulse when the ignition is turned off. The gopro needs two terminals to be shorted( pin 12 to ground) for about 3 seconds to turn it on, then three seconds to turn it off again.
Not sure if the above...
I assume the 12v or around there is the same where ever I tap into it. I basically need to send a pulse to the go pro when I turn the ignition on then when I turn it off I need another pulse, not sure how an op amp would be able to do this? Need to detect the rise of the 12v then the fall and...
Simple question really but I've forgotten the basics. I need to turn on a Gopro camera when my car ignition is turned on, i.e. 12v (the go pro has interface via an iPod dock like connector and I'll simply short two pins - need to short then for about 3 seconds). Now when the car ignition is...
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