Delayed Pulsed Ground On Pulsed Ground Input Possible?

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juppers

Member - Posts: 2

Joined: August 14, 2006

Posted: November 06, 2023 at 2:45 PM / IP Logged

I'm attempting to automate up and down on a rear window of a SUV. The alarm can only send a single pulsed ground signal as the trunk release function.

I have a PAC TR-7 in mode #8 that is close to what I need, but I need to generate a delayed second ground pulse to unlatch the outputs after 5 seconds.

Any ideas on a timer IC or circuit design that could accomplish what I'm looking for, or should I just scrap the TR-7 and move on to a microcontroller to handle the logic?

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