Using Ultrasonic Distance Sensor HC-SR04 with Buzzer, LED and Arduino

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In this video, we made a device using Arduino that can measure distance and tell the distance using a buzzer. this can actually help those blind people.
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Ekbar kono bostu samne asle, buzzer onek khon kivabe bajabo vaiya?

Rayhan_Ahmed.
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vaia, apnar sathe kivabe contect korte pari???

safikulsourov
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