Launching Soon · ESP32 IoT System

Your kitchen,
protected
by intelligence.

SafeFlame AI is a full-stack IoT safety system for LPG kitchens. Real-time gas monitoring, automatic valve shutoff, camera alerts to your phone, voice commands, and a live web dashboard — all on your local WiFi, no cloud required for safety.

Pre-Book Your Unit → See How It Works

Sensors

ESP32 Boards

100ms

Alert Time

Cloud Needed

Gas (PPM)

128

Normal range

Flame

None

No detection

Pressure

1.2 kPa

Stable

LPG Cylinder

38%

~14 days left

Safe to Leave Kitchen ✓ Yes

Gas Valve — Open Close

System Flow

Alert in 100ms. Response in seconds.

SafeFlame AI doesn't just warn you — it acts. Here's the exact sequence from detection to resolution.

📡

Continuous Sensing

MQ2 gas sensor, dual flame detector, HX710B pressure sensor, and 50kg load cell read every loop cycle. Gas PPM, flame intensity, line pressure, and cylinder weight are all live.

⚡

Instant Response

Gas threshold crossed → SG90 servo closes the valve, both fans activate, buzzer sounds, WS2812B strip pulses red, DFPlayer plays the alarm siren.

📸

Photo Alert

ESP32 fetches a live JPEG from the ESP32-CAM and attaches it to a Telegram message and an SMS via SIM800L — so you see your kitchen immediately from your phone.

⏱️

Escalation

If unacknowledged after 5 minutes, full details and the photo are auto-sent to a backup contact. The dashboard shows a live countdown until escalation fires.

🎙️

Voice Control

"Hey Sentry, close the valve." INMP441 mic captures audio → ESP32 streams to wit.ai → intent matched → command executed → DFPlayer confirms with spoken response.

✅

All Clear

Gas drops below threshold → valve reopens (unless in Night Schedule or Away Mode) → fans return to auto → strip returns to green → Telegram and SMS send all-clear.

What's Inside

Not just a detector. A full safety system.

Every tier ships with the full feature set. The only difference between tiers is display size, camera count, and processor.

📊

Live Web Dashboard

Served directly from the ESP32 at safeflame.local — no external server, no cloud. Sensor cards updating every 2 seconds, valve and fan controls, Away Mode, activity log, network latency badge, and a full settings modal with 5 tabs. Six colour themes built in.

Local-first

🔐

Firebase Auth

Full login, register, and password-reset flow on the dashboard. Login rate limiting locks out IPs after repeated failures.

📱

Telegram + SMS

Photo-attached Telegram alerts and cellular SMS via SIM800L. Both work independently — if WiFi is down, GSM still sends.

⚖️

LPG Weight Tracking

50kg load cell + HX711 tracks cylinder fill %, kg remaining, estimated days left, and daily consumption rate. Auto-detects cylinder refills.

🌙

Night Schedule

Valve automatically closes every night during a configured window, reopening in the morning.

🤖

Gemini AI Chat

Dashboard chatbot powered by Google Gemini with live sensor context. Answers "Why did the valve close?" with your actual PPM readings.

🔄

OTA Updates

Update firmware wirelessly. No USB cable, no disassembly.

🕐

DS3231 RTC

Battery-backed real-time clock. Timekeeping continues even during power cuts or WiFi drops.

🔧

Maintenance Mode

Silence external notifications for 15min to 2hr while working with gas. Safety logic keeps running.

Components

Everything that makes it work.

Three ESP32 boards, six sensors, four actuators, and a cellular modem — every component chosen for reliability in a kitchen environment.

Brains

ESP32 Dev Module (38-pin)

Main controller — sensors, safety logic, web server

ESP32-CAM (AI-Thinker)

Camera snapshot server, serves JPEG on alert

Hosyond 4" ESP32-32E

Touchscreen satellite display (ST7796S + XPT2046)

Sensors

MQ2 Gas Sensor

LPG / smoke concentration in PPM

Flame Sensor Module

Fire presence and intensity (analog + digital)

HX710B Pressure Sensor

Gas line differential pressure in kPa

BE0011 50kg Load Cell + HX711

LPG cylinder weight — fill %, kg remaining

INMP441 I2S Microphone

Voice command audio input

Actuators & Output

SG90 Servo Motor

Opens and closes the gas ball valve

2-Channel 5V Relay Module

Controls two exhaust fans

WS2812B LED Strip

Ambient safety-state lighting (green / amber / red)

DFPlayer Mini + Speaker

MP3 alarm siren and spoken voice responses

SIM800L GSM Module

SMS alerts over cellular — no WiFi needed

Tech Stack

Firmware

Arduino C++ on ESP32

Auth

Firebase Auth

Email/Password

AI Chat

Google Gemini API

Live sensor context

Voice

wit.ai

Free speech recognition

Messaging

Telegram Bot + SIM800L

Display

ST7796S + TFT_eSPI

Touchscreen satellite

Display

TFT_eSPI + TJpg_Decoder

Time

NTP + DS3231 RTC

Choose Your Tier

Same system. Three display options.

Every unit includes the full safety system. The tiers differ only in display size, camera count, and processor.

Base

4" Display Unit

₹24,999_/unit

Early-bird price. Final retail may vary.

Automatic LPG valve shutoff
MQ2 + flame + pressure sensors
LPG cylinder weight monitoring
1× HD monitoring camera
4" I2C LCD real-time display
Telegram + SMS alerts
Local web dashboard
Voice commands (wit.ai)
1-year hardware warranty

Pre-Book Base

Spec	Base	Pro	Elite
Display	4" LCD	7" Touch	9" Touch
Cameras	1×	2×	4×
Gas / Flame / Pressure Sensors	✓	✓	✓
Auto Gas Shutoff	✓	✓	✓
LPG Weight Monitoring	✓	✓	✓
Telegram + SMS Alerts	✓	✓	✓
Voice Commands	✓	✓	✓
Customisable Dashboard	—	✓	✓
Multi-Room Monitoring	—	—	✓
Processor	Standard	Standard	Upgraded

From our closed pilot program.

Feedback from early households before public launch. Public reviews will be added after general availability.

The gas line shutoff during a pressure spike gave us peace of mind we didn't have before. The Telegram photo meant I could see the kitchen from the office within seconds.

Anjali R.

Pilot Household, Kochi

The touchscreen display is simple enough that my parents check it without any help. The cylinder weight tracker is genuinely useful — we know to order gas a week in advance now.

Manoj S.

Pilot Household, Bengaluru

Setup took under two hours and the exhaust fan activation during our test leak was nearly instant. The voice commands work well — "Hey Sentry, close the valve" actually works.

Priya T.

Early Access Tester

Illustrative feedback from our closed pilot. Individual results may vary.

Questions

Frequently asked.

Does it need an internet connection to work?+

No. Core safety functions — valve shutoff, fan activation, buzzer, LED alerts — run entirely on the local ESP32 with no internet needed. SMS alerts also work via the SIM800L GSM module independently of WiFi. Internet is only required for Telegram alerts, the Gemini AI chat, and OTA firmware updates.

How is the gas valve controlled?+

An SG90 servo motor is mechanically coupled to a standard gas ball valve. When the ESP32 triggers a gas or flame alert, it drives the servo to the closed position in under a second. You can also open or close it manually from the dashboard, touchscreen, or voice command.

When will it ship?+

We're in final production preparations. Pre-booked orders will be prioritised and shipped in the order they're received once manufacturing is complete. You'll get an email update when your order is confirmed and again when it ships.

Does pre-booking require payment?+

No — pre-booking only reserves your place in the launch queue. Our team will contact you to arrange payment before dispatch.

What's the difference between the tiers?+

All three tiers include the full safety system: gas/flame/pressure sensors, auto valve shutoff, exhaust fans, LPG weight monitoring, Telegram/SMS alerts, web dashboard, and voice commands. The difference is display size (4" / 7" / 9"), camera count (1 / 2 / 4), and whether you get multi-room zone monitoring and the upgraded processor (Elite only).

Reserve Yours

Pre-Book Your SafeFlame AI Unit

No payment now — this reserves your spot. Our team will contact you to confirm and arrange delivery.

--Days

--Hours

--Mins

--Secs

4" Base

₹24,999

7" Pro

₹39,999

9" Elite

₹54,999

No payment required now — this reserves your spot in the launch queue.

Launching Soon

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Your kitchen, protected by intelligence.