November 17, 2010
BY
BuildCircuit
Dark sensor using BC557
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I was studying some of your content on this site and I conceive this web site is very informative! Keep on posting.
I was examining some of your articles on this site and I conceive this web site is very instructive! Keep on putting up.
Your website looks very informative, but why dont you incorporate the Joule Thief into your circuits? Any particular reason?
There is one problem in this circuit during the ligth transtion it gives flickring ( i am operating a relay). Please suggets if someone has done something to remove this.
Ajay
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Can you provide these by switching the LDR and VR1, so that as light is on the LDR the LED turns on? Can I accomplish the same thing by switching to an NPN transistor, such as a 2N2222A?