Скачать или смотреть Arduino LDR Project | Automatic Dark Detection Alarm (Beginner Friendly)

In this video, I will show you how to use an LDR (Light Dependent Resistor) with Arduino to build an automatic dark detection alarm system.

This simple beginner-friendly Arduino project turns ON a red LED and buzzer automatically when it gets dark, and turns ON a green LED when light is detected.

Perfect project for:
• Arduino beginners
• School / college mini projects
• IoT and sensor learning
• Electronics hobbyists

🔧 Components Used:

Arduino Uno

LDR sensor

Breadboard

Red LED

Green LED

Buzzer

Resistors

Jumper wires

📌 What You’ll Learn:

How LDR works

How to connect LDR with Arduino

Analog input reading

Dark detection logic

Controlling LED and buzzer

This project can be used for:
✔ Automatic street lights
✔ Dark alarm systems
✔ Light detection systems
✔ Smart home basics

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