/diy/ - Do It Yourself

i think that arduinos will be overkill( and i don't have time to learn or order them) so i figure this would be my trigger mechanism. spring is pulling on a rod on a swivel. the rod wants to rotate but can't because of the extended tape measure (the pink thing) when cat trips the wire. the spring will have enough force to fold the tape measure and the rod will then connect the 12v from a car battery to the air bag.

this could probably be made less complex with a switch but less reliable i assume