Infrared Sensor Module with Adjustable Sensitivity and Holding Time This infrared sensor module is designed for reliable motion detection and automated control applications. It combines a quality infrared sensor with a precision control circuit board, allowing flexible adjustments to meet various project needs. Key Features Adjustable sensitivity and holding time to finetune detection range and signal duration Voltage output with or low level signal, providing 3.3V TTL output for easy integration Wide working voltage range from DC 4.5V to 20V, ensuring compatibility with various power sources Two trigger modes: L mode for unrepeatable triggering and H mode for repeatable triggering, giving greater control over device activation behavior Benefits Allows precise of detection performance to suit specific environments Compatible with numerous microcontrollers and electronics projects due to standard TTL output Operates under a broad voltage range, ideal for projects requiring flexibility in power supply Selectable trigger mode provides the ability to prevent false triggers or enable continuous activation depending on operational requirements Specifications Output type: /Low level signal Voltage output: 3.3V TTL logic Operating voltage: DC 4.5V to 20V Trigger method: L unrepeatable trigger or H repeatable trigger Integrated control board for stable, consistent signal processing Applications 1. Security Systems: Detects motion for activating alarms or cameras 2. Automated Lighting: Controls lights in hallways, rooms, or outdoor spaces when movement is detected 3. Robotics: Enables motion sensing for autonomous navigation or interaction functions This infrared sensor module delivers dependable performance with adjustable parameters to meet a wide variety of automation and detection needs, while remaining simple to integrate into existing systems or projects.