Make a color recognition lock with Arduino. via instructables
There are a lot of ways that you can activate an electronic lock. You can use passwords, radio signals, or even voice commands. In this project, I am going to show you how to make a lock box that opens and closes based on color recognition.
With a color recognition lock, anything can be a key. You can set the lock to recognize the color of a cereal box, or the cover of your favorite book. You could even use pictures on your phone as the key. With so many different color combinations, a color lock is also very difficult to break into.
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