Transistor as an Automatic Switch - Light Controlled Switch | SPM Physics Form 4/Form 5 Revision Notes
LDR switches are used to switch other device when light are present or absent. | Projeto de circuito eletrônico, Eletrônica digital, Esquemas eletrônicos
LDR Controlled Transistor switching
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Light activated switch circuit using LDR and IC 555 - Gadgetronicx
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LDR switch doesen't work well in partial darkness : r/AskElectronics