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Light sensor
The light sensor uses the silicon photoelectric cell as the inducting component; it can convert the light intensity into a voltage signal, keeping a direct proportion. For the sensor, the effective light spectrum is in a range of 380nm and 730nm, with the spectrum characteristic close to the one of eyes. So it is an ideal intensity sensor for visible light. The probe of light sensor is located at the front end of sensor; when using, it must make the light-sensitive surface point to the light.The red button on the light sensor is used to shift the measuring range. If pressing the button, it can measure a value between 0~13000 Lux; otherwise it is only between 0~600 Lux.
Light sensor