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The Sound Sensor Module (LM393) is a compact, high-sensitivity audio detection module operating at 3.3–5 V. It uses an onboard microphone and LM393 comparator to output both analog and digital signals, allowing it to detect sound levels or events. Adjust the sensitivity via the onboard potentiometer. Ideal for noise-triggered alarms, voice activation, sound-based robotics, and IoT projects. Compatible with Arduino, ESP32, and Raspberry Pi. |
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