KitchenGuard

How it fits together

KitchenGuard, part by part

Scroll or tap a part. Press “See the 3D CAD design” to watch the model, built from our CAD, light each part up and show how it connects.

See the 3D CAD designShow the concept

Real-time 3D render · drag to rotate · final design may varySwipe sideways to rotate

1. 01

   The whole KitchenGuard

   A hood bar watches the burners, counts cooker whistles and hears alarms; a weighing deck tracks gas; one pod brain runs it all.

2. 02Brain

   ESP32-S3-WROOM-1 (kitchen pod)

   The brain: it runs the kitchenguard-fw program

3. 03

   Thermal camera

   Sees which burner is hot, and the cooker on it

   ESP32-S3-WROOM-1 (kitchen pod) · I²C on the Cat5e cable · 32 x 24 heat frame

4. 04

   Presence radar

   Tells if anyone is in the kitchen, even sitting still

   ESP32-S3-WROOM-1 (kitchen pod) · GPIO pin on the Cat5e · Person there or not

5. 05

   Microphone

   Counts cooker whistles and hears smoke or gas alarms

   ESP32-S3-WROOM-1 (kitchen pod) · PDM on the Cat5e cable · Sound, never stored

6. 

   06

   Cylinder load cells

   Weigh the LPG cylinder for gas left

   ESP32-S3-WROOM-1 (kitchen pod) · 4-wire cable to HX711 · Cylinder weight

7. 07

   Whistle LED bar

   One light per whistle, flashes at the target

   ESP32-S3-WROOM-1 (kitchen pod) · One data wire (Cat5e) · Colour for 8 LEDs

8. 

   08

   E-paper screen

   Shows gas left, days left and the whistle target

   ESP32-S3-WROOM-1 (kitchen pod) · SPI · Screen image

9. 

   09

   AA backup cells

   Keep alarms running about 7 hours in a power cut

   ESP32-S3-WROOM-1 (kitchen pod) · Battery lead to backup switch · 6 V backup power

10. 10

    All connected

    8 key parts, one program, and your phone

How the parts connect

KitchenGuard, wired up

Every part, what links it to the brain, and how the data reaches your phone. A solid line is a cable; a dashed line is a radio link.

The program

What controls KitchenGuard

for (;;) {
    mlx90640_frame(&heat);                       // I2C, 2 Hz
    bool here = gpio_get_level(RADAR_OUT);
    burner_step(&zones, &heat, here);            // StoveSentry: hot + empty -> alarm
    fan_plug_set(zones.any_hot || purge_due());  // AutoVent via listed smart plug
    if (pdm_window(&snd)) {                      // T5838 woke on loud sound
        if (whistle_match(&snd, &tmpl)) leds_show(++whistles, target);
        if (alarm_grammar(&snd, &alarm)) publish("kg/alarm", alarm);
    }
    if (minute_tick()) gas_step(&gas, hx711_avg()); // kg, days left, book-from
    epaper_update_if_changed(&gas, whistles, target);
    publish_changes();                           // MQTT over TLS
}

To your phone

How the data reaches KitchenGuard family app

Family phones (Android and iPhone)

1. Kitchen pod
2. Home Wi-Fi · MQTT over TLS
3. IEMI cloud
4. Push, SMS and voice call
5. Family phones

Key specs

Targets for production units; they may change during development.

Pricing

Target pricing; India pricing in rupees to be confirmed. Bought separately, StoveSentry ($129 + $3/mo), CookerCount ($19), GasLock ($39) and AlarmEcho ($39 + $3/mo) add up to $226 + $6/month. Parts cost about $119 per kitchen plus about $20 for the optional fan plug (est.).

Indicative launch pricing in USD, excluding taxes and shipping. Final pricing is confirmed before any balance is charged.

1. 28 Oct 2026, 05:01LatestOne product for the home kitchen (owner decision, 27 Oct 2026).

   • Its jobs now run in KitchenOne, the smart range hood: /products/kitchenone/

   See it in 3DFull research and design

2. 27 Oct 2026, 01:58Families of a parent who cooks alone on LPG in India are told to fit a gas-leak detector, a smoke alarm, stove-left-on alerts and smart plugs (Samarth Community elder-care guides), and they still guess the gas left and count cooker whistles by ear. Each gadget beeps in the kitchen and tells nobody away from home.

   • New product KitchenGuard: one ESP32-S3 brain, one Wi-Fi radio, one backup battery and one app do the jobs of StoveSentry, CookerCount, GasLock and AlarmEcho
   • One microphone now counts cooker whistles and hears the kitchen alarm; whistles count only while the heat camera sees a hot burner
   • New CAD parts: a hood sensor bar (housing and cover with thermal, radar, microphone and an 8-light whistle bar, no chip or battery above the stove), a kitchen pod built from GasLock's pod with a big orange I'm-here button, and GasLock's cylinder deck parts reused unchanged; every bought part fits and each part is one solid
   • 3D view: an Indian kitchen with the bar under the chimney hood, the pod beside the stove and the cylinder on its weighing deck
   • Dropped: CookerCount's own chip and battery, AlarmEcho's separate disc and LTE box, StoveSentry's fume sensor and wall control, GasLock's separate chip
   • Product page: $179 + $3/month, against $226 + $6/month for the four products bought separately; parts about $119 plus a $20 fan plug (est.)
   • New product page: https://iemilabs.com/products/kitchenguard/

   See it in 3DFull research and design

3. 27 Oct 2026, 01:58Owner decision (27 Oct 2026): merge our single-job products into multi-job devices.

   • New product page: https://iemilabs.com/products/kitchenguard/

   See it in 3DFull research and design

4. 27 Oct 2026, 01:58Owner decision (27 Oct 2026): merge our single-job products into multi-job devices.

   • New product page: https://iemilabs.com/products/kitchenguard/

   See it in 3DFull research and design

5. 27 Oct 2026, 01:58Owner decision (27 Oct 2026): merge our single-job products into multi-job devices.

   • New product page: https://iemilabs.com/products/kitchenguard/

   See it in 3DFull research and design

6. 27 Oct 2026, 01:58Owner decision (27 Oct 2026): merge our single-job products into multi-job devices.

   • New product page: https://iemilabs.com/products/kitchenguard/

   See it in 3DFull research and design