One of the problems with living in a rental property is the inability to modify various features at a whim. The folk from the Area51 website had the same problem when then wanted to add a keypad access system to a door, however worked around the possibility of damaging the door or lock by fitting an Arduino-based system that not only solves the problem but still looks quite neat.
Their system uses a typical Arduino and numeric keypad combination, and a motor to take care of the door lock mechanism when called upon by the sketch. Building the system is quite simple, and if you have the ability to mount a more permanent solution - the final product could be a lot neater as well. Nevertheless a quick demonstration is shown in the following video:
For more information including the Arduino sketch and hardware connections, check out the Area51 website. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
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