AM312 Human Sensing Module (HCSR312) The AM312 Human Sensing Module is a compact, performance motion detection sensor based on passive infrared (PIR) technology. It is designed for reliable, automatic detection of human presence, making it ideal for a wide range of smart electronics and automation projects. Key Features: sensitivity and dependable performance for accurate human motion detection Operates on a wide voltage range from DC 2.7 to 12V, ensuring compatibility with various power sources Short delay time of 2 seconds for rapid detection and response Blocking time of 2 seconds to prevent false triggers and improve accuracy Repeatable trigger mode for continuous operation in active environments Performance and Benefits: This module uses advanced passive infrared sensing to detect changes in body heat, enabling seamless automation without physical contact. It operates efficiently across a range of voltages, which makes it suitable for portable devices, batterypowered systems, and fixed installations. The short delay and blocking times ensure quick responsiveness while minimizing false alarms, resulting in stable and consistent output. Applications: Automatic lighting control: Activate lights instantly when a person enters a room and turn them off when no motion is detected. Security systems: Detect unauthorized entry and trigger alarms or notifications. Smart home devices: Enable hands activation of appliances, fans, or entertainment systems. Compact and easy to integrate, the AM312 Human Sensing Module offers a reliable, lowpower, and maintenance solution for designers and engineers seeking to add motion detection capability to their products or projects.