Building a Smart Home with Arduino

Transform your home into a smart home with Arduino. This complete guide covers relay control, motion detection, temperature monitoring, and mobile app integration.

## Components Needed

- Arduino Uno or ESP32
- 4-Channel Relay Module
- PIR Motion Sensor
- DHT22 Temperature Sensor
- Buzzer and LEDs

## Project Overview

We'll build a system that automatically controls lights based on motion, monitors temperature, and sends alerts to your phone.