Working of Ultrasonic Sensors | How HCSR04 module works

An Ultrasonic sensors measure distances based on transmitting and receiving ultrasonic signals. This video explains the detailed working of an ultrasonic sensor, HCSR04. It also explains the use of trigger and echo pins on the sensor.
Ultrasonic sensors are used extensively in the field of robotics. These ultrasonic waves can penetrate through water and hence they can be used to calculate the depth of wells.
Ultrasonic Sensor datasheet: cdn.sparkfun.c...
To know more about the generation of ultrasonic waves:
www.daenotes.c...
To buy Ultrasonic sensors: goo.gl/Nmef75
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