Arduino Fire Detector with Siren and LED | Step-by-Step Guide

Описание: Learn how to build a DIY fire alarm system using an Arduino, a flame sensor (HW-072), a piezo buzzer, and an LED!

In this beginner-friendly tutorial, we’ll show you step-by-step how to connect and program the HW-072 flame sensor to detect fire and trigger a realistic two-tone fire truck siren using the tone() function. This project is perfect for school experiments, home automation safety prototypes, or learning how sensors work with Arduino.

✅ What You’ll Learn in This Video:

How the HW-072 flame sensor works
Understanding the IR photodiode and potentiometer
Flame detection using the LM393 chip
How to simulate a fire truck siren using Arduino
Complete code walkthrough with LED and buzzer
Tips for adjusting flame detection sensitivity and direction

Components Used:

Arduino Uno
HW-072 Flame Sensor Module
Piezo Buzzer
LED
Jumper Wires & Breadboard

💾 Download the code & full guide here:
👉 https://www.arduinointro.com/articles...

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