We, especially girls, have problem when our hands are full with either shopping bags or grocery store bags, but we need to find the door key in our purse. Here is an alternative idea how we can unlock the door by using our feet.

This prototype is implemented with Uno Arduino shield with custom-made switch to sense the presence of user. PiezoElectric components are used to get the secret code from the user. LED strip is used as the feedback.

Idea, recording, editing by Pradthana Jarusriboonchai

Credit song: A Smile and a Ribbon - Book Cover

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