Compact vibration sensor and output module for microcontroller projects. It provides a TTLlevel digital output with a level signal capable of driving loads up to 1 A, suitable for external LEDs, relays, or other devices. An analog output on the A0 terminal delivers a voltage proportional to vibration intensity, with a small potentiometer to set sensitivity. The core sensor uses a piezoelectric element to generate voltage on vibration, enabling interactive applications such as electronic percussion or motion sensing. Optional sensor expansion boards extend the analog ports, enabling additional weaksignal inputs and broader sensing capability. The module is designed for compatibility with standard microcontroller workflows and common development boards, featuring a compact form factor and robust PCB construction. Practical uses: Vibrationtriggered lighting: read A0 with a microcontroller and drive LEDs or other loads from the TTL output. Interactive percussion or gesture controller: use a vibrating pad to produce an analog signal for control. Sensor expansion: add extra analog inputs for a small multipoint vibration array in art installations or structural monitoring.