HCSR505 Mini Infrared PIR Motion Sensor Precise Detector Module for Body Switch Sensing Mode 2025 Version Overview A compact and reliable passive infrared motion detector module designed for body presence and movement sensing. The HCSR505 provides stable, lowpower detection output suitable for integration into electronics projects, automation systems, and sensor arrays. Key benefits Accurate presence detection: Detects human movement using a sensitive infrared sensor element that focuses on body heat signatures for reliable switching and triggering. Easy integration: Small form factor and standard signal output make it straightforward to connect to microcontrollers, controllers, and other electronic systems for fast prototyping and deployment. Stable performance: Engineered for consistent operation with minimal drift, helping reduce false triggers and maintain dependable response over time. Low power and fast response: Designed for energyefficient standby and quick wakeup and signal output when motion is detected, useful for batterypowered or alwayson applications. Features and attributes Function: Passive infrared motion detection for body switch sensing mode with digital output indicating presence or motion. Compatibility: Interfaces cleanly with a wide range of microcontrollers, control boards, alarm modules, lighting controllers, and automation inputs that accept a digital signal. Size and form factor: Miniature module suitable for spaceconstrained installations; fits compact enclosures and breadboard or PCB mounting. Material and build: Electronic component module with standard PCB construction and pin headers for reliable connectorization. Performance: Emphasizes precision detection and stable output suitable for repeated operation in typical indoor environments. Typical applications Automatic lighting control: Trigger lights when a person enters a room and turn them off after inactivity to improve convenience and energy use. Security and alarm systems: Detect movement near entry points or in monitored zones to initiate notifications or alarms. Robotics and automation: Provide presence sensing for robots, interactive installations, or occupancyaware devices to adapt behavior in real time. Why choose this module This HCSR505 mini PIR module is a practical choice when you need a compact, dependable motion detector that is simple to integrate and delivers consistent detection for body presence and motion sensing tasks. Its small size and straightforward output reduce development time and make it suitable for both prototype projects and embedded installations.