BH1726 조도 센서 -I2C
(AMBIENT 16 CLICK)
개요
- 본 제품은 BH1726 조도 센서 -I2C입니다.
- BH1726NUC 칩을 장착하고 있으며, I2C 인터페이스를 가지고 있습니다.
- 30klx 까지의 넓은 범위의 조도를 검출할 수 있습니다.
- 3.3V 시스템과 사용이 가능합니다.
특징
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HOW DOES IT WORK?
Ambient 16 Click as its foundation uses the BH1726NUC, a 16-bit digital-output ambient light sensor from Rohm Semiconductor. The BH1726NUC can detect a wide range of illuminance up to 30klx and provides an excellent responsivity close to the response of human eyes. It also has stable performance over a wide temperature range of -40°C to 85°C, and a voltage range suitable to measure the amount of the present ambient light.
The BH1726NUC is designed to control the brightness in various applications based on ambient light availability, brightness for optimum visibility, and energy efficiency. This IC can change its ambient-light sensitivity used to compensate for the effect of attenuation by the optical window. Adjustment is made by changing the measurement time. For example, when the transmission rate of the optical window is 1/n (measurement result becomes 1/n times if the optical window is set), the effect of the optical window is compensated by changing sensor sensitivity from default to n times.
Ambient 16 Click communicates with 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. Besides, the BH1726NUC allows choosing the least significant bit (LSB) of its I2C slave address using the SMD jumper labeled ADDR SEL. It also possesses an additional interrupt signal, routed on the INT pin of the mikroBUS™ socket labeled as INT, indicating when a specific interrupt event occurs.
This Click board™ can be operated only with 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.
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Type Optical Applications Can be used for obtaining ambient light data for adjusting brightness in applications that require power saving and better visibility On-board modules BH1726NUC - 16-bit digital-output ambient light sensor from Rohm Semiconductor Key Features Low power consumption, corresponds to a dark window because of high sensitivity, close responsivity to the human eye, I2C interface with selectable slave address, wide illumination range, stable performance over temperature and voltage, and more Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V