The LDR Light Sensor Module detects light intensity, with resistance decreasing as light increases. Ideal for automatic lighting and brightness sensing.
SR501 PIR Sensor is designed for motion detection, is used to detect human presence in indoors in alarm and lighting systems. The sensor has a range of up to 7 meters.
The HC-SR04 Ultrasonic Sensor Detector offers precise distance measurement from 2–400 cm with high accuracy, perfect for robotics and automation projects.
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