iameli has a RPi based door unlocker that is non destructive and non intrusive for those who do not want into hack into their existing security/locking mechanism. His solution is s simple replication of human action but using a Rpi to control the tactile action using a servo. If you need a replicate a button pushing action that will unlock your door or lock this project is a great inspiration. This could be particularly interesting for those who live in apartment building which are still rocking antiquated door unlockers.
More details and pictures on the site after the jump …iameli — buttonpusher.