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The SW‑420 Vibration Sensor Module is a shock-activated ball-switch sensor integrated with an LM393 comparator, operating at 3.3–5 V. It detects physical vibrations or impacts and outputs a clean digital signal. Adjustable sensitivity via onboard potentiometer makes it ideal for DIY alarms, robotics, vehicle security, earthquake detectors, and automated systems. Fully compatible with Arduino, ESP32, and Raspberry Pi microcontrollers. |
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