Smoke and Heat Fire Detector
ESP8266 Smoke & Heat Fire Detector Kit with SMS Alert
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine a fire alarm that doesn’t just beep—it texts you when smoke or heat crosses a safe threshold. This kit lets you build exactly that. Using the MQ-2 gas sensor and a waterproof DS18B20 temperature probe connected to an ESP8266 NodeMCU, you’ll create a dual-condition monitoring system that activates a buzzer, flashes red LEDs, and sends an SMS alert directly to your phone. Perfect for home safety experiments, school STEM projects, or your first step into practical IoT.
What You'll Build
A fully functional fire detection system that continuously reads air quality and temperature. When smoke levels rise or the temperature exceeds a programmed limit, the active buzzer sounds, the LEDs light up, and an SMS is dispatched via Wi‑Fi. You’ll have a working gadget that could genuinely protect a room, a lab bench, or a tinkering corner.
What You'll Learn
- Reading analog sensor data from the MQ-2 gas sensor and digital temperature from the DS18B20
- Writing conditional logic to trigger alarms when multiple sensor inputs cross thresholds
- Sending HTTP requests from ESP8266 to an SMS gateway (like IFTTT or Twilio) for real-time notifications
- Breadboarding circuits safely and calibrating sensor sensitivity
Kit Contents
| Component | Quantity |
|---|---|
| ESP8266 NodeMCU | 1 |
| MQ-2 Gas Sensor | 1 |
| DS18B20 Probe | 1 |
| Active Buzzer | 1 |
| 5mm Red LED | 3 |
| 4.7kΩ Resistors | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| Micro USB Cable | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Designed for CBSE Class 11–12 students exploring physics or computer science who need a practical IoT project, B.Tech ECE/EEE undergraduates setting up sensor labs, and ATL Tinkering Lab participants creating safety prototypes. It’s also a fantastic parent-child build for ages 10+ that introduces real-world fire detection and coding.
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.
What if I get stuck during the build?
Scan the QR code on the box to chat with the AI companion that walks through each connection and code snippet. You can also send a photo on WhatsApp, and our team will help you debug during Indian business hours.
Do I need to solder anything?
No soldering is required. All connections are made on the included 400-point breadboard using the provided male-to-male jumper wires.
How does the SMS alert work without a SIM card?
The ESP8266 connects to your home Wi‑Fi and sends an HTTP request to a free web service like IFTTT or Twilio. You’ll set up a free account during the build and configure it to forward the alert as an SMS to your phone. No SIM card or cellular module needed.
Is this kit safe for a 10-year-old to use?
Yes. The circuit runs on 5V from a USB power source, and the breadboard method keeps all connections exposed but low risk. We recommend adult supervision for younger builders, especially when handling the USB cable and buzzer. The project also teaches important lessons about fire safety and sensor thresholds.
MQ-2 smoke and DS18B20 over-temperature together trigger dual-mode fire alarm with SMS via ESP8266.
What's in this kit
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items