How an Arduino Ultrasonic Sensor Works
How an Arduino Ultrasonic Sensor Works
In this electronics tutorial we go over how an HC-SR04 ultrasonic distance sensor works with the arduino to determine a distance to an object.
The basic idea is that it send out a sound wave that is reflected by object. Then my measuring the time for the wave to make the trip you can determine distance. We have used the sensors to control the LittleArm arduino robot arm.
For more information visit http://www.littlearmrobot.com/
How an Arduino Ultrasonic Sensor Works
How an Arduino Ultrasonic Sensor Works
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Arianto
4 Comments
A video of how you built that robot arm using the ultrasonic sensor would be very great. Thank you
At 2:40, I believe the equation should be: Distance = speed of sound * time to travel to object and back * 0.5 to calculate the one-way distance, not round trip.
Can we use this sensor to measure the water level measurement
Nice