Pregunta:
Sensors used in automation: This sensor often used for security purposes detects infrared light. It is commonly used along with an infrared light source. You might have seen it in movies in which a villain trying to access a restricted area would avoid crossing a series of IR sensors shown as beams of red lines. Breaking or crossing the beam of red line would trigger an alarm.
Autor: James Marion Endrina EnticeRespuesta:
Infrared sensor
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