Ultrasonic Sensor
This is the ultrasonic sensor. It is used to sense proximity. It does this like a bat or submarine. Using ultrasonic sound too high of a frequency for us to hear, it detects in centimeters or inches how far away the object it is pointed at is. It sends out the sound wave and times how long it takes for that sound wave to return to it. It calculates the distance using the frequency of the sound and the time it took to travel.
This sensor can see between 0cm and 250cm. It will have trouble seeing cotton materials so point it at walls rather than yourself.
This sensor can see between 0cm and 250cm. It will have trouble seeing cotton materials so point it at walls rather than yourself.
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