This project was developed using an Arduino microcontroller, ultra sonic sensor, piezzo buzzer and LED lights in order to create a proximity alarm. How this alarm works is when the ultra sonic sensor senses an object at 3 different distances the piezzo buzzer starts to make a sound and the led lights start to flicker. As the object comes nearer and closer the LED lights change their pattern of flickering and the piezzo buzzer sounds becomes stronger.
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kocevaIv/proximityAlarm
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A proximity alarm developed with Arduino microcontroller.
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