The MikroElektronika AMBIENT 9 CLICK is a Click board, which is a single-board system designed for quick prototyping of applications. It is equipped with a lighting sensor, an I2C interface, the APDS-9160-003, and it operates with either 3.3VDC or 5VDC. This Click board features integrated circuitry for detecting and measuring the amount of ambient light. It includes an APDS-9160-003 Ambient Light Sensor, which is a sophisticated optical sensing device consisting of a sensitive ambient light detector and a signal conditioning integrated circuit. The board has a four-pin I2C header, which allows it to be easily connected to any microcontroller with I2C communication capabilities. It is also equipped with two jumpers that can be used to adjust the level of sensitivity, depending on the type of light being detected. Additionally, it has an interrupt output pin which can be used to detect light changes and measure the amount of light existing in the environment. This device is suitable for many lighting applications, such as natural or artificial light intensity detection, color recognition, and proximity detection. It is ideal for use in indoor or outdoor industrial models, door locks, secure entry systems, motion activation, and other lighting regulation and detection applications.