Discrete sound and light control stairs delay switch circuit(9)

Published:2011/6/30 1:09:00 Author:Ecco | Keyword: Discrete , sound , light , control, stairs delay switch | From:SeekIC

The unique sound and light control stairs delay switch circuit shown in the Figure has higher sound control sensitivity. at night, when someone walking on the stairs, the footsteps will make electronic switch, lamp light, and after people left, the lights will go off after 30s.



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