Ready to learn how to use ultrasonic sensors and arduino?

Ultrasonic sensors are devices that use high-frequency sound to measure distances.  One part of the sensor emits quick, high-pitched clocks that bounce off of objects in front of the sensor, while another part receives the echo of the clicks.  By calculating the time between a click and its echo, a computing device like a microcontroller can then measure the distance between a sensor and the object in front if it.

Ultrasonic sensors can be used with Arduino to measure distances. These distances can then be used to make other actions happen- like an LED lighting up or a buzzer buzzing. Watch this video to find out how they work.

Use this diagram to build a circuit to use an ultrasonic sensor.  

Once your sensor is correctly wired, you can use this code to get your ultrasonic sensor working with Arduino.


All set using ultrasonic sensors and Arduino?  Learn how to use other components with our guides.

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