_arduino-ultrasonic-sonar-sensor-obstacle-detection-using-leds-and-buzzer-feb-19-2015.jpg "Arduino Ultrasonic (Sonar) Sensor Obstacle Detection Using LEDs and Buzzer Feb 19, 2015 from files front 2015 Video Screenshot Preview")
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⏲ Duration: 50 sec
✓ Published: 19-Feb-2015
✓ Published: 19-Feb-2015
Description:
What I did here: I used an Arduino Uno and an ultrasonic / sonar sensor to test how it works. Using one red LED one green LED and a small buzzer / beeper I tried to figure if anything in 30 CM and 20 CM in front of the sensor comes. If anything in 30 CM to 20 CM comes in front of sensor it will give a low sound from buzzer and green LED will turn on. Anything come closer than 20 CM will turn the red LED on with higher sound.nWhat I used:n1 Arduino unon1 Ultrasonic sensor - HC-SR04n1 Red Ledn1 Gr
What I did here: I used an Arduino Uno and an ultrasonic / sonar sensor to test how it works. Using one red LED one green LED and a small buzzer / beeper I tried to figure if anything in 30 CM and 20 CM in front of the sensor comes. If anything in 30 CM to 20 CM comes in front of sensor it will give a low sound from buzzer and green LED will turn on. Anything come closer than 20 CM will turn the red LED on with higher sound.nWhat I used:n1 Arduino unon1 Ultrasonic sensor - HC-SR04n1 Red Ledn1 Gr
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