Bh1750

The BH1750 ambient light intensity sensor breakout board has a 16-bit A2D converter built-in that can directly output a digital signal. The output from the sensor is in Lux (Lx) and does not require advanced calculations in the sketch. The BH1750 communicates using I2C Protocol. BH1750 FVI Is a Digital Light sensor , which is an digital Ambient Light Sensor IC for I2C bus interface. This IC is the most suitable to obtain the ambient light data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at High resolution.( 1 – 65535 lx ). By liking Our Facebook Page Embeded Studio , you can get special discount and Data Sheet can be downloaded from the link bh1750fvi-e . Available in the best discount rate , only on Embeded Studio.

This sensor has some advantages such like :

1) Illuminance to Digital Converter
2) Wide range and High resolution. ( 1 – 65535 lx )
3) Low Current by power down function
4) 50Hz / 60Hz Light noise reject-function
5) I2C bus Interface ( f / s Mode Support )
6) No need any external parts
7) It is possible to select 2 type of I2C slave-address.
8) It is possible to detect min. 0.11 lx, max. 100000 lx by using this function.

Illuminance is a measure of how much luminous flux is spread over a given area. One can think of luminous flux (measured in lumens) as a measure of the total “amount” of visible light present, and the illuminance as a measure of the intensity of illumination on a surface. Bh1750

Lumen : The unit for the quantity of light flowing from a source in any one second (the luminous power, or luminous flux) is called the lumen.

In our sensor we will take a reading from it in Lux which is equal  to one lumen per square metre: