I need a keypad to open my garage door, when I don't have the key-fob at hand. I decided to make the prototype with an arduino. I made a 4-key pad, added code to check for the magic combo, and made a relay tell the door opener to act.
It works on my desk. Now I need a power supply, a case, and probably a better keypad. It would be nice to not have to put the entire arduino in my garage... I'll keep you posted.
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