10 Pack HCSR501 PIR Motion Sensor Module for Arduino and Raspberry Pi, Adjustable Sensitivity Control

Pack of 10 HCSR501 pyroelectric infrared PIR motion sensor modules designed for easy integration with microcontroller projects. Why this module helps you Reliable motion detection: Onboard pyroelectric sensor and Fresnel lens detect moving heat sources and produce a stable digital output suitable for logiclevel inputs. Quick to integrate: Simple 3pin wiring for power ground and output makes these modules ready for breadboard prototyping and permanent projects. Tunable operation: Builtin potentiometers let you adjust sensitivity and detection time to match different environments and reduce false triggers. Multiple units included: Ten identical modules allow testing, parallel deployments, or multiple sensor points in a single system. Key attributes Model: HCSR501 Function: Passive infrared motion detection with digital output for microcontroller input Compatibility: Works with most microcontrollers including Arduino and Raspberry Pi when interfaced correctly Interface: 3pin connection for VCC ground and digital output Size and form: Compact PCB module with integrated Fresnel lens and lightweight construction suitable for prototyping and embedded use Performance: Adjustable sensitivity and time delay for flexible detection range and response behavior Power: Designed for typical lowvoltage electronic projects; simple power wiring supports common development boards Practical applications Automatic lighting: Trigger lights when motion is detected to improve convenience and reduce energy use in hallways, closets, or workshops. Security and alarm systems: Use as a motion trigger for local alarms logging or camera activation in monitored areas. Occupancy sensing and automation: Integrate into HVAC control, smart plugs, or robotics to detect presence and adapt system behavior. What you get Ten HCSR501 PIR motion sensor modules, ready for prototyping and deployment Consistent behavior across modules for repeatable results in multisensor setups Integration tips Connect VCC ground and output to your microcontroller input. Verify voltage compatibility when interfacing with 3.3volt logic and add level shifting if . Use the onboard adjustments to set an appropriate sensitivity level and time delay to match the installation environment. These HCSR501 modules provide a compact and adjustable motion detection solution for a wide range of microcontroller projects and practical automation scenarios.