Скачать или смотреть ३) Smart Street Light Using LDR and Arduino (Beginner Friendly)@TveshaSkill

In this video, I have made a simple and useful project – an Automatic Street Light / Automatic Night Lamp using Arduino and an LDR sensor.
This LED automatically turns ON in the dark and turns OFF when light falls on the LDR.
You can even use a mobile flashlight to test the day–night effect!

This project is perfect for beginners, school/college students, and anyone learning Arduino basics.
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🔧 Project Features

✔ Automatically switches ON when it's dark
✔ Turns OFF in daylight or mobile flashlight
✔ Uses only 1 LED (No relay needed)
✔ Simple wiring – LDR + 10k resistor
✔ Works on voltage divider principle

🛠️ Components Used
Arduino UNO
LDR (Light Dependent Resistor)
10kΩ resistor
LED (1 piece)
220Ω resistor for LED
Jumper wires
Breadboard



🔌 Pin Connections

LDR + 10k Resistor:
5V → LDR → A0 → 10kΩ → GND


LED:
LED + (long leg) → D8
LED – (short leg) → 220Ω → GND


💡 How It Works

The LDR changes its resistance based on light.
Arduino reads this value from pin A0.

Dark → LED ON
Light / Mobile torch → LED OFF


A simple and effective Day–Night sensor using Arduino!


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