1. Some one could cut the cord, not to get in the dorm just to &#&$ you over. 2. The lock can still be picked, there is no added security. In fact it makes it weak, because now there are 2 way to open the door.
My solution: Why not just use a simple RF tag? You would not need to have a keyboard or anything on the outside of the door in harms way.
Also, you can inject a encrypted rf id in your hand so you would always have the key! If you don't want an rf id in your hand you could always just carry a tag with you.
This adds the functionality, because now whenever you get close it opens it automatically, and when ever you leave it could lock it up!
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1. Some one could cut the cord, not to get in the dorm just to &#&$ you over.
2. The lock can still be picked, there is no added security. In fact it makes it weak, because now there are 2 way to open the door.
My solution: Why not just use a simple RF tag? You would not need to have a keyboard or anything on the outside of the door in harms way.
Also, you can inject a encrypted rf id in your hand so you would always have the key! If you don't want an rf id in your hand you could always just carry a tag with you.
This adds the functionality, because now whenever you get close it opens it automatically, and when ever you leave it could lock it up!