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Digital Audio Memo Alert Wiring diagram Schematic
Digital Audio Memo Alert Wiring diagram Schematic
This is a Digital Audio Memo Alert Circuit Diagram. This device prevents paper notes and memos from being overlooked. A paper note placed between two fingers made of a conducting material (metal or conductive plastic) breaks the schema, allowing pair 1 of Ul-a to go high. This causes Ul-c Ul-d to act as an oscillator, pulsing piezo buzzer BZ1.
Digital Audio Memo Alert Circuit Diagram
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