Below is the circuit diagram of this light sensing street light project. Street light or lamp circuit circuit diagram.
The circuit is built around popular op amp ic 741 ic1 14 bit ripple counter cd4060 ic2 scr bt169 bc557 and other components.
Street light circuit diagram.
Two bc547 npn transistors are used to drive the relay. In this project we have used an ldr light dependent resistor which is responsible for detecting light and darkness. First start form battery. Removal of trigger turns the light off street light controller with a switching. The circuit is quite sensitive and versatile and can be used. T he circuit diagram present here is that of a street light that automatically switches on when the night falls and turns off when the sun rises.
Don t worry about negative side and the positive side of the resistor. This is a circuit diagram of automatic street light. Here is a very useful project of an automatic street light or lamp circuit which can be used to activate your outdoor lights like garden lamps night lights etc. After that there is led is connected with 330 ω resistor but be care full the light emitting diode. At first direction there is a resistor of 330 ω and on the other direction 220 ω resistor is connected. This is very simple circuit with few electronics components.
Automatic street light control. Ic1 along with ldr1 enables ic2 which drives transistor t1 into conduction. In fact you can this circuit for implementing any type of automatic night light. The circuit uses a light dependent resistor ldr to sense the light when there is light the resistance of ldr will be low. Ic2 is also used to trigger scr1 to switch on the street light. Ldr light dependent resistor is used to sense intensity of light.
This circuit is same as a dark detector or light detector circuit only here we have replaced simple led with a ac load using a relay. Resistor is not polarity sensitive. Circuit diagram and explanation. Three light emitting diodes are used this. The positive side of the battery is divided into two directions. Street light controller circuit.
Bc547 npn transistor turn on which in return turns on q2 npn transistor. Let try to understand this circuit. Automatically when the sun set and turn off automatically when the sun rises. When intensity of lights falls below minimum level. The resistance of ldr increases in darkness and reduces in presence of light. Circuit diagram of automatic street light control is given below.
Automatic Street Light Controller Using Relays And Ldr Circuit Electrical Projects 7 Blade Wiring
Dark Sensor Light Automatic Street Simple Electronics Electrical Plug Connection Diagram
