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Sensor
A sensor is a device that measures or detects a real-world physical condition, such as motion, heat or light and converts the reading into an analogue or digital representation.
An optical sensor detects the intesity or brightness of light, or the intensity of red, green and blue for colour systems.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Sensor
2020-10