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Showing posts with label M3482. Show all posts
Showing posts with label M3482. Show all posts
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Water Sensor Alarm Circuit using IC M3482

This is a simple musical alarm circuit that produces a musical tone when water or some conducting liquid comes in contact with the 2 sensor wires provided. The circuit relies on four transistors and one melody generator IC M 3482.When water comes in contact with the sensors wires A & B, the bottom of Q1 gets connected with the negative and it conducts. This makes Q2 and Q3 ON. When Q3 is ON the
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