GY-30 Digital Light Intensity Measuring Module
From Wiki
Introduction
BH1750FVI is a digital Ambient Light intensity Sensor IC for I2 C bus interface, and this kind of IC can adjust the background light of LCD and keyboard according to the intensity data of the collected light. It is possible to detect a wide range of changes of light intensity with high resolution. (1lx-65535lx)
Applications
Mobile phone, LCD TV, Note PC, Portable game machine, Digital camera, Digital video camera, Car navigation, PDA, LCD display.
Features
- I2C BI (f / s mode supporting)
- Spectral responsibility close to human eye distinguish
- Luminance to digital converter
- Wide range and high resolution (1 - 65535 lx)
- Low current by power down function
- 50Hz / 60Hz Light noise reject-function
- 1.8V Logic input interface
- no need of any exterior component
- Dependency on the light source is little (ex. incandescent lamp, fluorescent lamp, halogen lamp, white LED, Sun Light)
- It is possible to select 2 type of I2 C slave-address
- Adjustable measurement result for influence of optical window(It is possible to detect min. 0.11lx, max. 100000lx by using this function.)
- Small measurement variation (+/- 20%)
- The influence of infrared is very small
Introduction of Pins
| Pin Introduction | |
|---|---|
| GND | Connected to the cathode of the power supply |
| ADD | IIC address pin |
| SDA | I²C data |
| SCL | I²C clock |
| VCC | Connected to the anode of the power supply (3~5v) |
