Hello guys! I'm quite new in electronics and I want to build myself a 'follow me home' module. This means when i unlock my car, the headligths should stay powered on for 10-15 sec. I was thinking that I can do this by connecting the car battery to the headlights when i unlock the car. But the problem is how can I turn off the lights automatically after 10 sec. -lets say-; i know its easier to buy this kind of thing but i want to build it myself. I will attach a video so that you guys can see what i was thinking about. Have a great time and thank you for your attention.