This compact vibration sensor module uses a sensitivity piezoelectric element to convert movement into an electrical signal. It provides an analog output for direct controller input and a TTL level output for digital interfaces, with a builtin LED indicator. Analog output for controller readout: Connects to the controller through the analog terminal a and outputs a proportional voltage corresponding to vibration strength for precise sensing. Adjustable sensitivity: A small potentiometer sets the response range to suit different environments and vibration levels. TTL output and status indicator: level TTL signal ready for microcontroller inputs or LED drivers; LED shows signal activity. Material and size: Piezoelectric ceramic sensor with a compact PCBmounted form factor designed for easy integration into small projects. Performance and compatibility: Fast response, wide dynamic range, and compatibility with standard analog inputs and TTL logic. Applications: 1) Interactive prototypes and hobby electronics that react to touch or motion. 2) Vibration monitoring for equipment to detect shocks or abnormal activity. 3) Vibrationtriggered lighting or indicator effects, or educational labs.