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Questions tagged [sensor-ultrasonic]

Ultrasonic sensors emit sound waves at a frequency too high for humans to hear. They then wait for the sound to be reflected back, calculating distance based on the time required. The sensor is more accurate at measuring distances than the infrared sensor.

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1 answer
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How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes

How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes. I would like to use the wait block but it can only be either the colour sensor or the IF ...
Emily's user avatar
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2 votes
1 answer
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Advanced mode in EV3 ultrasonic sensor

The EV3 Ultrasonic Sensor has an “Advanced mode" which measures either in centimeters or in inches. When exactly do you use this mode? Why doesn’t the sensor send just a single ultrasonic signal?
farah fahhoum's user avatar