Mini IR Pyroelectric Motion Sensor Module AM312 A compact motion detector module designed to sense human movement reliably and send a usable signal to control circuits. The AM312 module operates from low DC voltage and is suitable for integration into lighting, security, automation, and DIY electronics projects. Available in packs of 1, 5, or 10 pieces. Key benefits Detects human motion automatically using a pyroelectric infrared sensor, allowing devices to respond only when people are present. Wide input voltage range DC 2.7 to 12V makes it easy to use with batteries, lowvoltage supplies, and common control systems. Small, low profile module fits into tight spaces and compact enclosures for discreet installation. Provides a clear output signal for direct interfacing with microcontrollers and control circuits, simplifying integration and reducing development time. Multiple modules per pack enable deployment across several locations or inclusion in multisensor systems. What this module does for you Saves time and effort during installation and prototyping by delivering a readytouse sensor module. Enables automatic control of lights, alarms, and devices to improve convenience and reduce unnecessary power use. Supports flexible system design thanks to its compact size and broad voltage compatibility. Features and attributes Model: AM312 Function: Pyroelectric infrared motion detection for human presence Supply voltage: DC 2.7 to 12V Output: motion detection signal suitable for interfacing with digital inputs on controllers and control circuits Form factor: mini PCB module with integrated PIR element for smallfootprint mounting Ease of use: plugin wiring and straightforward signal output for quick testing and deployment Typical applications Automatic lighting control for corridors, closets, and stairways where lights should turn on only when a person is present. Basic occupancy sensing for security or alert systems to trigger alarms or notifications when movement is detected. DIY electronics and robotics projects that require a compact motion input for behavior changes or power management. Integration tips Use the module with common microcontrollers and single board computers by connecting the detection output to a digital input pin. Place the sensor where it has an unobstructed view of the monitored area for detection performance. Combine multiple modules to cover larger areas or to create zoned detection systems. Pack options Available as single piece, 5 pieces, or 10 pieces to suit oneoff projects or larger installations. This AM312 mini PIR module provides a compact, lowvoltage solution for simple motion detection and easy integration into control and automation projects.