How do you set an automatic street light?
How to Make Automatic Street Light
- Step 1: Take All Components As Shown Below. Components required –
- Step 2: Pins of BC547 Transistor.
- Step 3: Connect LED.
- Step 4: Solder LDR.
- Step 5: Connect 20K Resistor.
- Step 6: Solder Battery Clipper Wire.
- Step 7: How to Use This Automatic Street Light.
What is automatic street light circuit?
It is a simple and powerful concept, which uses transistor (BC 547 NPN) as a switch to switch ON and OFF the street light system automatically. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. (e.g in evening after Sunset).
Which sensor is used in automatic street lights?
LDR sensor is used for detecting the presence of surrounding light so that during the day time when sun is bright, the street light is switched off automatically. During the night time when there is no light, the LDR sends signal to microcontroller to turn on the street light.
What are the disadvantages of automatic street light?
Some disadvantages that should be considered before opting for automatic street lights are:
- High cost of installation as compared to conventional street lights.
- Risk of vandalism and theft.
- Batteries need to be replaced multiple times in their entire life-cycle, thus increasing maintenance cost.
What is the use of automatic street light?
These solar street lights are able to automatically sense outdoor light with the help of a sensor. They can this way smartly save power & give light on successive nights even when sunlight is unavailable for a couple of days. This is the reason many users nowadays are switching over to solar street lights.
What is the aim of automatic street light?
The main purpose of this project “automatic street light control with different light intensity” is to minimize the cost & loss of electricity and also man power to manually on- off the street light.
What is use of automatic street light?
Why relay is used in automatic street light?
But in dimness or at night time, we know that resistance of LDR is high. Hence, the voltage at non-inverting input pin 3 of the IC LM358 decreases than the inverting input pin 2. As a result, the output pin 1 moves to low state, which further makes the relay to activate and the LED or bulb associated to it will glow.
Which relay is used in automatic street light?
Working Explanation. This Automatic Street Light Controller Circuit uses an LDR (Light Dependent Resistor) which is responsible for detecting light and darkness. LDR increases its resistance in darkness and reduces it in the presence of light. Here, Two BC547 NPN transistors are used to operate the relay.
What is automatic dark sensor?
Introduction: Dark Sensor ( Light Sensor / Automatic Street Light ) it is a simple and powerful concept , which uses transistor ( BC 547 NPN) as a switch to switch ON and OFF the street light system automatically . It automatically switches ON lights when the sunlight goes below the visible region of our eyes.
https://www.youtube.com/watch?v=VCsy5_Rd8rI