I2C 조도 센서 -BU27030NUC
(AMBIENT 20 CLICK)
개요
- 본 제품은 I2C 조도 센서 -BU27030NUC입니다.
- 16비트 디지털 출력 조도 센서로 BU27030NUC 칩을 기반으로 디자인된 제품입니다.
- I2C 인터페이스를 가지고 있으며, 3.3V 시스템과 사용이 가능합니다.
특징
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HOW DOES IT WORK?
Ambient 20 Click is based on the BU27030NUC, a high-sensitivity light-to-digital converter from Rohm Semiconductor that transforms light intensity into a digital output signal. The BU27030NUC provides ambient light sensing (ALS) that approximates the human eye response to light intensity under various lighting conditions and through different attenuation materials. It has a flexible and wide operating range of up to 20klx with a maximum resolution of 0.0007lux/count, even when mounted behind dark glass. The BU27030NUC also features inherent 50Hz/60Hz light noise rejection and excellent IR-cut characteristics, making this board most suitable for brightness control functions, helping to reduce power consumption.
Ambient 20 Click communicates with an MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Standard Mode operation with a clock frequency of 100kHz and Fast Mode up to 400kHz. Despite its simple design, the BU27030NUC provides users with two outputs with different spectral responses. Thanks to the simplicity of the I2C interface, users can access not only the data of both outputs but also other configuration parameters such as the measurement mode of the desired output, gain settings, data update status, and the activation of the measurement process itself.
This Click board™ can only be operated from a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
Type Optical Applications Can be used for applications such as automatic residential and commercial lighting management On-board modules BU27030NUC - ambient light sensor from Rohm Semiconducto Key Features Low power consumption, corresponds to a dark window because of high sensitivity, close responsivity to the human eye, I2C interface, wide operational range, stable performance over temperature, and more Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V