Infrared sensor

An infrared sensor detects heat emitted by objects, similar to how our skin senses warmth. It works by emitting infrared light or measuring the infrared radiation naturally emitted. When an object is nearby, the sensor recognizes changes in heat patterns or infrared signals, allowing it to detect presence, motion, or temperature differences. Infrared sensors are used in various applications like remote controls, motion detectors, and temperature measurements, providing reliable non-contact sensing that is unaffected by visible light or darkness.