HCSR501 PIR Motion Sensor Module The HCSR501 PIR (Passive Infrared) motion sensor provides a reliable and efficient way to automatically control a wide range of devices based on movement detection. Designed for versatility and ease of integration, it offers fast response times and dependable performance for both hobbyist projects and professional applications. Key Features and Benefits: Automatically activates connected devices when motion is detected, saving energy and improving convenience Compatible with incandescent lamps, fluorescent lamps, buzzers, automatic doors, electric fans, automatic washing machines, dryers, and other electronic devices Wide operating voltage range from DC 4.5V to 20V, ideal for various power supply systems Extremely low quiescent current consumption under 50uA, ensuring minimal standby power usage Adjustable trigger settings: L mode: cannot be repeatedly triggered H mode: can be repeatedly triggered (default setting) Allows flexibility for different operational requirements Compact body sensor module, easy to mount and integrate into or existing systems Performance and Compatibility: Model: HCSR501 Body Sensor Module Operating Voltage: DC 4.520V Quiescent Current: Less than 50uA Trigger options for behavior Practical Applications: 1. Home automation: Automatically switch on lights or fans when you enter a room, reducing wasted power usage. 2. Security systems: Activate alarms or notifications when motion is detected, providing added safety and deterrence against unauthorized entry. 3. Industrial and commercial environments: Control machinery, doors, or signaling devices to ensure efficient and safe operations. The HCSR501 PIR motion sensor module offers a proven, costeffective solution for motionbased control. Its combination of low power consumption, broad voltage compatibility, and adjustable settings makes it an choice for a wide range of automation and security applications.