I’m looking to create an alarm system (which is basically just a sound played from a speaker that is triggered when a magnetic Reed door switch is broken). However, as this is part of an installation, I’ve set it up so the alarm doesn’t go off even if the door gets closed.
I would like it to work in a way whereby the only way to disarm it would be to power off the Arduino itself. I would like to achieve this by having the user unplug an alligator clip from a contact point. I’m trying to figure out the best way to achieve this - I have one of these YwRobot Power MB V2 Units, so I was wondering if the was perhaps a way to wire up the alligator cable and contact point to this so I can have it power off this way?
Any help would be greatly appreciated.
It’s worth mentioning I’m using an Arduino nano.