ND-1 with output pulse signal application circuit

Published:2014/4/15 22:49:00 Author:lynne | Keyword: ND-1 with output pulse signal application circuit | From:SeekIC

With the application of ND-1 output pulse signal, shown in Figure, which can be set up in a musical doorbell on the door (or alarm) circuit, when guests knock on the door, ND-1 can trigger pulse output string music ICKD9300 work play a role doorbell, if someone in the door lock picking or unauthorized intrusion, the circuit will be action, play a security role, the power consumption of the entire circuit is UA level, with an oscilloscope to see P2 pin output waveform.



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