Ambient Light Sensors

Ambient light sensors, also known as photocells or photodiodes, are a type of sensor that measures the intensity of light in the surrounding environment. Ambient light sensors are typically made from semiconductor materials such as silicon or germanium, and have a high resistance in darkness and a low resistance when exposed to light. Ambient light sensors are commonly used in a variety of applications, such as automatic light switches, digital cameras, and smartphones, to adjust the brightness of the device based on the ambient light level. They can also be used in scientific or medical instruments to measure light intensity, or in security systems to detect changes in the light level. Ambient light sensors are available in different sizes, styles, and sensitivity levels, depending on the specific requirements of the application.