Multiple Music Doorbell Circuit

Published:2011/7/8 1:09:00 Author:Joyce | Keyword: Multiple Music , Doorbell | From:SeekIC

The music doorbell as shown in the figure is composed of several musical circuit. When the visitors press the doorbell , they can hear constantly changing music , which will, on one hand, alleviate the visitors` anxiety; on the other hand, provide the host with enough time to open the door while stops his/her current work. As shown in the figure, the circuit is composed of a doorbell triggering circuit, multiple music automatically switch circuit and several musicals.



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