Voice-activated delayed light switch circuit (3)

Published:2012/8/29 22:33:00 Author:Ecco | Keyword: Voice-activated , delayed light, switch | From:SeekIC

As shown in the figure, it is a voice-activated delayed light with music doorbell chip voice as the core component, when it is used, blowing whistle or filming palm, the lights will be lit with delayed around 20s, then the light will go off automatically, so it makes life easier. Another feature of the circuit is that it uses two-wire connection, you can directly replace the normal switch without changing the original indoor circuit; it can also connects to an ordinary light switch in parallel, then the common light is retrofited into voice-activated delayed light. The lighting time length depends on the length of music signals storaged in doorbell chip, KD-9300 integrated circuit signal depends on the storaging music, it is usually 10~20s.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/Voice_activated_delayed_light_switch_circuit_3.html

Print this Page | Comments | Reading(3)