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Description: This module (BH1750) is a digital ambient light sensor for I2C bus interface. This module is the most suitable to obtain ambient light data for adjusting LCD and the keypad backlight power of mobile phones.


  • I2C bus interface
  • spectral responsibility is approximately human eye response
  • illuminance to digital converter
  • wide range and high resolution. ( 1 - 65535 lx )
  • low current by power down function
  • module contains 5V to 3.3V converter
  • 50 Hz / 60 Hz light noise reject function
  • no need for any external parts
  • adjustable measurement result for influence of optical window (this function allows to detect min. 0.11 lx, max. 100000 lx)
  • small measurement variation
  • very small influence of infrared


  • supply voltage: 5 V
  • voltage: 3.3 VCC
  • operating temperature : -40°C - +85°C
  • SDA sink current: 7 mA
  • power dissipation: 260 mW
  • dimensions : 20 x 30 mm
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