Ideal Auto Street Light Circuit Diagram
Let try to understand this circuit.
Auto street light circuit diagram. As light is falling on ldr light dependent resistor so led does not glow. The circuit uses a light dependent resistor ldr to sense the light when there is light the resistance of ldr will be low. At first direction there is a resistor of 330 ω and on the other direction 220 ω resistor is connected.
Circuit diagram of automatic street light control is given below. So the voltage drop across pot r2 will be high this keeps the transistor q1 on. You can make such projects easily.
When intensity of lights falls below minimum level. The collector of q1 bc107 is coupled to base of q2 sl100. Ldr light dependent resistor is used to sense intensity of light.
We have tried this one in this tutorial but you can also try the second one mentioned below. This is a circuit diagram of automatic street light. Circuit diagram 2.
This is very simple circuit with few electronics components. First start form battery. Resistor is not polarity sensitive.
Don t worry about negative side and the positive side of the resistor. Automatic street light control system sensor using ldr transistor bc 547 very simple. So here in this project we are going to make a simple automatic street light circuit using ldr and relay which will turn on and off the light bulb based on the lights in surroundings.