HCSR501 Infrared Motion Sensor Module The HCSR501 is a reliable automatic control module built on advanced infrared technology. It features the LHI778 probe design for exceptional sensitivity, consistent performance, and an ultralow voltage operating mode. This makes it ideal for a wide range of automatic induction applications, especially those powered by dry batteries. Key Benefits and Features: Sensitivity: Detects movement with precision using the LHI778 infrared probe design. Reliable Performance: Built for consistent operation in diverse environments. UltraLow Power Usage: Quiescent current of only 65mA, for batterypowered devices. Automatic Motion Detection: Activates a level signal when motion is detected within its sensing range. Delayed SwitchOff: Maintains activation briefly after motion stops, then automatically outputs a low signal. Easy Integration: level output signal can connect directly with a wide variety of circuits and control systems. Technical Specifications: Model: HCSR501 Technology: Infrared motion detection Probe: LHI778 Power Consumption: 65mA quiescent current Output Signal: level on motion detection, lowlevel after delay when no motion is present Voltage: Ultralow voltage operation, ideal for dry batterypowered equipment Practical Applications: 1. Batterypowered automatic lighting that switches on when a person enters a room and turns off after a short delay when they leave. 2. Automatic power control for small appliances, reducing energy consumption when not in use. 3. Security or alarm systems requiring reliable motion detection without power demand. The HCSR501 provides an effective and efficient motion detection solution for projects or products where low power use, sensitivity, and dependable performance are essential. Its compatibility with various circuits and control systems makes it a versatile choice for engineers, hobbyists, and manufacturers seeking an easytointegrate motion sensing component.