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Touch type anti-theft alarm circuit 2
Source: InternetPublisher:常思一二 Keywords: Touch type anti-theft alarm circuit BSP Updated: 2021/08/15
It uses KD9561 music
integrated circuit and touch heat transfer.
When the human body touches the metal piece M, an alarm is issued. Even if
the human body leaves M, the alarm sound will not stop. Only by pressing
button SB once will the alarm be released.
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