Me and william's arduino project involves a ultrasonic distance
sensor that, based on how far or close an object is to it, changes the color of an
led. At far distances, the led glows a faint green,
the closer you get, the brighter the green gets. At closer
than 6cm, the led turns a bright red and a buzzer begins going off.
There is also an lcd that displays the distance of an object in cm.
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