Seeed 101020172 Grove - Line Finder V1.1

LED - Light Emitting Diode - a small light source

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

White - A colour combining all colours

Eye - An organ which detects light

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

Robot - A machine often used to imitate human behaviour

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

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