Voice-activated light switch delay circuit 1

  
A strong anti-interference ability Lu light control delay switch circuit, it needs within a specific time in a row clapping I. lamp lit square Xi, after a delay, lights automat
Voice-activated light switch delay circuit 1 - schematic

ically turn off. Ji Guan on this circuit example is basically the same, except that the transistor VT base resistance R. Original left foot then Sk t integrated circuits ? ? change received the first leg, and then affixed in ?tJ. ? feet respectively resistive and capacitive delay element R. And G, put the original voice of the city open to change Yan Ge opening delay. Changes in R;, c. Numerical length adjustable circuit of a specific time; change R, value then adjust the delay time of the circuit-cho, namely E lamp lighting the length of time the reader according to their own needs to be adjusted.




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