This component is an ambient light sensor that uses IC BH1750FVI-TR (serial 16 bit digital output type).
This component is widely used for applications related to mobile phones, LCD TVs or LCD displays, portable gaming machines, digital cameras, digital video cameras and PDAs.
Here are some of its features:
- I2C bus interface (f / s mode support)
- Spectrum response approaching human eye response.
- Converter light to digital data.
- Has a wide range and high resolution (1 - 65535 lx).
More details can be seen in the datasheet here https://goo.gl/LZiUox
