DIY Smoke and Fire Alarm System with Arduino Uno – Intermediate Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

When you combine the MQ-2 gas sensor’s ability to detect smoke and combustible gases with the KY-026 flame sensor’s infrared eye, you get a dual-alert safety system that mimics real-world fire panels. This kit lets you build and program that exact system — a project that stands out in CBSE school exhibitions, ATL innovation showcases, and first-year B.Tech mini-project submissions.

What You'll Build

You’ll assemble a breadboard-based fire safety prototype that independently monitors the air for smoke and a flame’s characteristic IR signature. When either sensor crosses a programmable threshold, a dedicated relay triggers a buzzer and a cluster of red LEDs, just like an addressable alarm panel. The module can be powered by a 9V battery snap, so your demo booth doesn’t need a laptop.

What You'll Learn

• Interface the MQ-2 gas sensor with Arduino to read analog smoke and LPG levels
• Calibrate the KY-026 flame sensor for reliable fire detection at varying distances
• Program two independent 5V relay channels to activate buzzer and LED alarms on separate triggers
• Debug a multi-sensor system on a breadboard and adapt the code for real-time safety alerts

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is tailored for CBSE Class 11–12 students building sensor-based physics or computer science exhibits, B.Tech ECE/EEE first-years prototyping safety mini-projects, and ATL Tinkering Lab innovators working on fire-safety ideas. It’s also a solid foundation for Smart India Hackathon pre-qualifier prototypes or IIT, NIT, VIT, and BITS lab assignments that demand a real-world embedded systems demonstration.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.