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Smart Key Rack: Prototype 1
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2020Jul 27
The Smart Key Rack is a device that is intended to be installed near the entry way of any bar, restaurant, or any place where alcohol is served in order to prevent the user from driving under the influence. The prototype is comprised of unique 3D printed parts and the structural components are made of wood. The device has an MQ-3 ethanol sensor to determine BAC and an ultrasonic distance sensor to put the device into power-saving mode when a user is not present. The device gives feedback to the user via an RGB LED and the LCD display and uses two (2) steppers and two (2) H-bridges to control the x-axis and the y-axis. The reason this project was selected is because it holds the users accountable and keeps the roads safer. If this project were to be further developed, a good application of this could be at a school-bus depo or public transportation depo and before the worker can get the keys to their work vehicle they must blow below the legal limit. This project is an original creation of Austin Saunders and Parker Stensrud.

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Austin Saunders

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