12v Light Sensor Circuit Diagram. Automatic Night Light Circuit Diagram With LDR Without Transformer which i design it perfectly but anytime there is thunder storms or lighting the zener diode will fail please help me out. It automatically switches OFF lights when light fall on it eg in morning by using a sensor called LDR Light Dependent Resistor which senses the light just like our eyes.
LDR circuit diagram LDR darkness sensor circuit. Automatic Night Light Circuit Diagram With LDR Without Transformer which i design it perfectly but anytime there is thunder storms or lighting the zener diode will fail please help me out. The circuit shown in figure 1 is a very simple light sensor circuit that will activate an LED when the LDR in the circuit receives light.
The switch is a semiconductor relay S202DS2 and the oscillator is 4060.
After working with it for quite some time now I am able to light entire LED strips with dark sensors and also I have designed a circuit with three BC547 transistors which when added to a LED 5050 strip powered by 12v supply changes color according to the light. Light sensor circuit diagrams. Capacitor C1 must be 400v Rated. The step down transformer and the diode bridge rectifier steps down and convert the high AC in the range of 110V or 230V voltage to low 12V DC voltage.
