Sharp GP2Y0D21YK0F 24cm Detecting Distance Measuring Sensor

LED - Light Emitting Diode - a small light source

Acrylic - A type of plastic

LENS - An optical element which converges or diverges light

Digital - A system that uses only 0s and 1s to transmit data

Quick - Something that is fast

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Voltage - A measurement of volts.

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