How OBEX Works

Five senses. One decision, in milliseconds.

The loop, live

Tap a stage. Watch the system light up.

The whole device runs one loop. Pick any stage and the diagram shows only the parts that come alive in that phase — and how the signal actually moves. Or press Play to run the full sequence.

THE BRAIN ESP32-S3 + AI fuse · verify · decide Thermal camMLX90640 Flame sensorLM393 Smoke·CO·VOCMQ·BME688 Presence radarLD2410C Night cameraOV2640 MicrophoneINMP441 Alarm sirenmulti-tone + voice SuppressionFK-5-1-12 Status ringgreen·amber·red Speaker/voiceMAX98357A Wi-Fi·Zigbee·cellphone·mesh·911 Your phonealert+snapshot 🚒Monitoring centerdispatch if no reply
Stage 01

Sense — the device never stops watching

Six input channels stream into the brain continuously. Some watch for fire; radar watches for people; the mic waits for you to ask a question. No decisions yet — just constant raw signal.

ThermalFlameSmoke·CO·VOCRadarNight camMic
The thermal array reads a live heat-map of the stovetop, spotting abnormal rate-of-rise before flame is visible.
Radar answers what the others can't: is anyone actually in the kitchen right now?
Everything flows one direction — into the brain. Nothing acts on its own.
Status ring: green — all clear
Stage 02

Decide — fuse and verify

This is what separates OBEX from a smoke alarm. No single sensor can trigger anything alone. The brain waits for multiple independent channels to agree — so searing a steak or a burst of steam never sets it off.

The BrainThermalFlameSmoke+CORadar
Cross-checks thermal rate-of-rise, flame, smoke, CO and gas signatures against each other in real time.
Checks radar: whether anyone's near the stove decides what comes next — speak up and ask, or escalate on its own.
Onboard AI confirms true fire vs. false alarm in under 400ms — no cloud round-trip needed.
Status ring: amber — verifying
Stage 03

Communicate — warn everyone, then ask

Before it does anything drastic, OBEX speaks up. The ring turns amber, it gives a spoken warning to the room, and it pushes an alert to your phone — then it asks the one question that decides what happens next: is this under control, or do you need help?

Status ringVoicePhone alert
Ring — turns amber, readable across the room at a glance.
Voice — "Heat on the front-left burner is higher than usual. Is it under control, or do you need help?"
Phone — instant push with a live thermal snapshot, wherever you are.
Say it's under control and OBEX stands down and keeps watching. If no one responds — or you ask for help — it escalates to Act.
Status ring: amber — alerting & awaiting your response
Stage 04

Act — suppress the fire, call for help

If no one's there to respond, or you ask for help, OBEX acts on its own. The alarm sounds, a short countdown warns anyone nearby, then the agent discharges clean FK-5-1-12 straight at the source — and the monitoring center gets 911 rolling.

Alarm + countdownSuppression nozzle911 dispatch
Alarm — a multi-tone siren and a clear spoken countdown so anyone nearby can clear the area. You can still cancel by voice if it's a false start.
Suppression — the nozzle discharges FK-5-1-12 clean agent directly at the source: non-toxic, non-corrosive, no residue disaster.
911 — the 24/7 monitoring center reviews the incident and dispatches the fire department with your address and a live feed. This is what makes OBEX an Agent, not just a detector.
Status ring: red — acting now

One loop, running every second. Put it in your kitchen.

Reserve now — fully refundable until your unit ships.

Five senses

Each one covers what the others can't.

A fire looks different at every moment. No single sensor catches all of it — so OBEX layers five and lets them confirm each other.

01

Thermal vision

A 32×24 array reads the stovetop heat-map, catching abnormal rate-of-rise before flame is visible.

02

mmWave presence

Radar detects whether anyone's in the kitchen — even standing still — so OBEX knows when a stove is truly unattended.

03

Smoke & gas chemistry

Photoelectric smoke plus CO/VOC sensing catches grease and electrical fires alike — not just the ones a standard alarm trips on.

04

Voice AI

Ask "OBEX, check the stove" from another room. It answers — and walks anyone in the house through what's happening.

05

Autonomous suppression

Once two or more sensors independently confirm fire, OBEX triggers a targeted burst at the source. No person required.

Two-way voice

It only talks about one thing: your safety.

OBEX isn't a smart speaker — you won't ask it the weather. It watches the kitchen, warns you the moment heat climbs higher than usual, and asks what you want to do: keep watching, activate suppression, or call 911. You can call on it too. Trigger an alert, tap a reply, or press the mic and speak.

OBEX · watching the kitchen
OBEX speaks first when something's off. Trigger an alert below, or say “OBEX, I need help.”

A focused safety line — not a general assistant. Runs entirely in your browser with the Web Speech API; nothing you say is recorded or leaves this page.

The nine seconds that matter

Watch the ring. It tells the whole story.

Ignition to confirmed-out, second by second. The status ring shifts green → amber → red → green as confidence builds and resolves.

T+0.0s · ALL CLEAR

Everything's watching, nothing's wrong

Thermal reads the stovetop continuously, radar knows who's in the room. Ring glows green.

T+0.4s · IGNITION

Grease flare erupts

The thermal array catches the abnormal rate-of-rise the instant it ignites — day or night, before a person would see it.

T+0.4s · PRESENCE CHECK

"Is anyone near the stove?"

Radar scans for people. If someone's there, OBEX speaks first, giving them a window to respond before anything deploys.

T+0.8s · VERIFIED

Threat confirmed — steam doesn't count

Thermal, smoke, CO and gas-leak signatures cross-check. Searing and steam don't qualify. This does. Ring turns amber.

T+1.0s · ALERT & ASK

"Under control, or do you need help?"

The ring goes amber, OBEX speaks a warning and pushes an alert to your phone. Confirm it's under control and it stands down and keeps watching.

T+1.5s · NO ONE RESPONDS

OBEX escalates — alarm + countdown

Nobody's there to confirm, so it acts. A multi-tone siren sounds and a spoken countdown warns the room. Ring goes red.

T+2.0s · SUPPRESSED

Clean agent deployed

The nozzle discharges FK-5-1-12 directly at the source — non-toxic, non-corrosive, no residue. No gas line to cut; OBEX puts the fire out itself.

T+2.1s · 911 DISPATCHED

Fire department on the way

The 24/7 monitoring center calls 911 and sends the fire department with your address and a live incident feed — no one at home has to make the call.

T+9.0s · VERIFIED OUT

Confirmed extinguished

Thermal confirms no reignition, OBEX debriefs the household and files an incident report. Ring returns to green.

Why seconds matter

Seven minutes is a lifetime. OBEX acts in two seconds.

A grease fire doubles in size every 15 seconds and can take a whole kitchen before the fire department even arrives. That gap is the entire reason OBEX exists.

49%
of home fires start with cooking equipment
88sec
a home catches fire in the U.S. — every 88 seconds
7min
average fire department response time
2sec
OBEX — from ignition to suppressant deployed

It doesn't just alarm. It acts.

Sense, decide, act, communicate — one loop, running every second, whether you're home or not.

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