“Do you have a pesky sibling or pet that sneaks up on you? Are cars always in your blind spot? Create a proximity alarm that alerts you to approaching objects. This simple guide will teach you how to create a proximity alarm that will light up and make noise when something approaches. An ultrasonic rangefinder and Arduino microcontroller will check for nearby objects and if need be, alert you with a piezo-buzzer and RGB LED. Learn about these components using electronics lab simulations and eventually design, code, simulate, and build the proximity alarm itself! This is great if you are looking for a quick project to learn about digital electronics.”
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