HomeDesign rev A, 28 Oct 2026: smart range hood that makes the kitchen's calls itself (7 calls, 5 alone, 2 assist), call light and tone, ATECC608 and tamper switch inside; 13 sensor views checked in the CAD; not built

KitchenOne

IEMI's one product for the home kitchen: the range hood over your hob, made smart, so it watches the cooking and makes the kitchen's safety calls itself, in one family app

The 60 cm chimney hood that already hangs over the hob, at the same size and mounting, watches every burner and pan with a heat camera, knows if anyone is in the kitchen with a radar, counts cooker whistles and hears the home's own smoke and gas alarms with a mic, sets its own fan speed, shows each call on its front with a light and a tone, and calls the family only when needed.

Who buys it: Adult children of a parent who cooks alone, and families who cook on gas; later, kitchen fitters and hood makers.
Why it pays: $369 + $3/month (about $405 in the first year) instead of about $342 + $6/month (about $414) for a plain 60 cm chimney (about $155) plus StoveSentry, CookerCount and AlarmEcho bought separately, with three apps and a pod, a clip and a disc around the hob.
Target price: $369 per smart range hood + $3/month family alerts and calls (target)
First-minute wow: A parent puts dal on to simmer and lies down. Six minutes later the hood glows amber with a tone; nobody comes, so the daughter's phone rings: "Front-left burner lit, kitchen empty 6 minutes." She calls, the parent turns it off, and the hood goes back to white.

See the CAD design Concept page

KitchenOne concept: the idea and where each part goes — The concept. The CAD design is below, under Printable CAD.

What the research found

And how this design answers it

Rev A (28 Oct 2026): the kitchen flagship is the range hood itself. Everything sits in a sealed strip behind the hood's front fascia: XIAO ESP32-S3 brain, MLX90640 heat camera looking down at the hob, LD2410C radar into the room, MAX9814 mic, call light and tone, ATECC608, tamper switch, supply and 2 backup cells
Makes the kitchen's calls itself: burner left on with the kitchen empty, dry pan, smoking oil, boil-over and flare, whistle target reached, the home's own smoke or gas alarm sounding, and the fan speed; night cooking and gas used assist; unsure means unsure
Folds KitchenGuard, StoveSentry and CookerCount: the hood bar, kitchen pod, fan plug and fridge counter are gone
Gaps listed: gas shut-off (a certified valve), cylinder weight (GasLock stays listed), gas sensing in the hood (LPG sinks), alarms elsewhere in the house (AlarmEcho stays listed)

Use case

A parent who cooks alone on gas

Parent who cooksAdult childrenNeighbour

01Trigger: lunch on two burners, a pressure cooker set to 3 whistles, then a rest
02Detect: the heat camera sees the burners and the cooker, the mic counts whistles, the radar sees the kitchen empty
03Act: blue light at 3 whistles; amber light and tone when a burner stays lit with nobody there; family call if it still stands
04Log: signed calls and the cooking day in the family app

Outcome: The family knows the kitchen is watched without a pod, a clip and a disc around the hob, and is called only when it matters

How it works

Architecture

01
Sense: heat camera, presence radar and mic inside the hood's front strip
02
Decide: the XIAO ESP32-S3 runs the burner, pan, whistle and alarm models and says unsure below the line
03
Show: call light and tone on the hood front; fan speed to the hood's own blower
04
Tell: signed calls over Wi-Fi to the family app, with SMS and voice calls for the serious ones

Hardware

Real parts, buyable today

Bill of materials: about $272 per hood at qty 1 including the hood body (prices checked 28 Oct 2026).

Block	Part	Why this part
Brain	Seeed XIAO ESP32-S3	One brain with Wi-Fi in the hood
Heat camera	Adafruit 4469 MLX90640 110 degree	Sees all four burners and every pan from 700 mm
Presence	HLK-LD2410C radar	Someone in the kitchen, even sitting still
Sound	Adafruit 1713 MAX9814 mic	Whistles and the home's own alarms
Calls	2 x Adafruit NeoPixel Stick 8 + Adafruit 160 piezo	The call on the hood itself
Security	Adafruit 4314 ATECC608 + Omron D2F-01	Signed calls, tamper log
Power	Mean Well LRS-50-5 + PowerBoost 1000C + 2 x Samsung 35E	Mains and about 36 h of backup (est.)

Mechanical

Printable CAD

2 parts, generated from code and checked as closed solids. Pick a part to inspect it, or download the STL files to print.

Loading the CAD…

Real CAD · drag to rotate · scroll to zoomReal CAD · swipe sideways

Open risks we are working on

Steam and smoke can blur the heat image; the boil-over and flare classifier is unproven (kitchen tests K-T1)
Air under the canopy over a wok on full flame may pass 70 °C; the front strip temperature is tested before release
Grease film on the Ø14 window dims the heat image; the app asks for a wipe
Fan noise can mask whistles and alarm beeps; accuracy is unmeasured
Not a gas detector, smoke alarm or shut-off: it hears certified alarms and alerts only
Hood makers could add the same sensors; our edge is the calls, the family app and the price

Design stage only: nothing on this page is for sale. Specifications and prices are targets.