I Thread Starter _ian_g_ Joined Oct 14, 2006 5 Oct 19, 2006 #1 how do i make a night circuit work with 4 L.E.D's which come on in the dark the L.E.Ds are red and green anybody got any idea thank you
how do i make a night circuit work with 4 L.E.D's which come on in the dark the L.E.Ds are red and green anybody got any idea thank you
E EEMajor Joined Aug 9, 2006 67 Oct 19, 2006 #2 Hello. What voltage source are you looking to use? Are you trying to make a night light? You may find use of this circuit: http://home.cogeco.ca/~rpaisley4/PhotoDetectors.html
Hello. What voltage source are you looking to use? Are you trying to make a night light? You may find use of this circuit: http://home.cogeco.ca/~rpaisley4/PhotoDetectors.html
S Søren Joined Sep 2, 2006 472 Oct 25, 2006 #3 Hi, _ian_g_ said: how do i make a night circuit work with 4 L.E.D's which come on in the dark Click to expand... Try this: Dark Activated Relay Just replace the relay with the LED's in two parallel string, one green, one red and a resistor in each string.
Hi, _ian_g_ said: how do i make a night circuit work with 4 L.E.D's which come on in the dark Click to expand... Try this: Dark Activated Relay Just replace the relay with the LED's in two parallel string, one green, one red and a resistor in each string.
