Ever get the feeling that your door is unlocked?

MotoH

Well I am not an engineer of any sort, but drilling a hole on the inside of the door frame so the small switch fits, which can be extremely small, because all they have to do is complete a circuit. Run the wires from there to a module that can connect to a computer and run a specific set of operations (this is where it gets fuzzy because I am definitely not a programmer!) But I have seen homemade devices that update to twitter before, so it shouldn't be that expensive or technical.

pallidin

Why not just use commercial locks that ALWAYS lock from the outside(without a key) but from the inside you can simply turn the knob/handle/etc and get out?
Very available. Problem solved. Sleep tight. ZZZZzzzzzzzzz

inutard

Simply because I would have to change my lock and that would constitute as an 'intrusive' change that requires more effort. Besides, this is a summer project of mine, so just changing the lock wouldnt do it for me.

pallidin

Ah, yes, projects! I know what you mean.
Seriously, I'm not being sarcastic at all. I love projects.
Carry on!!!

TDE

This sounds like a cool project! keep us updated.