CareOne

How it fits together

CareOne, 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 CareOne

   The bedside locker is the bed bay's own watcher: a tracking radar, two weigh plates, a call key and a mic inside its top feed one brain that makes the bed-bay calls, lights them on the locker and tells the right carer.

2. 02Brain

   Seeed XIAO ESP32-S3 (on the service tray in the locker top)

   The brain: it runs the careone-fw program

3. 

   03

   Tracking radar

   Sees sitting up, legs over the edge, lying and turning in bed, someone on the floor beside the bed and a carer at the bedside

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · UART · Up to 3 people: position and speed, 10 times a second

4. 04

   Jug and hand-rub weigh plates

   Feel each drink leave the water jug and each pump leave the bedside hand-rub bottle

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · I²C (STEMMA QT) · Weight, 10 readings a second

5. 05

   Call key and voice note mic

   A press calls; a hold records a short voice note with the reason

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · GPIO + analog in · Key press, 10 s voice note

6. 06

   Call light, floor glow and tone

   Shows each call on the locker: amber bed exit, red on the floor, yellow call waiting, green accepted; the amber floor glow at night; a tone

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · One data wire + PWM pin · Light colour and tone

7. 07

   Secure element and tamper switch

   Signs each call; marks the log if the service tray is opened

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · I²C + GPIO · Signatures, tamper flag

8. 08

   Backup charger and cells

   Keeps the locker calling about 27 h in a power cut (est.) and tells the brain the mains has gone

   Seeed XIAO ESP32-S3 (on the service tray in the locker top) · 5 V rail, low-battery and USB-power sense pins · Power, mains-lost flag

9. 09

   All connected

   7 key parts, one program, and your phone

Our circuit board · rev A-0

One board of our own inside CareOne

Every chip on one board we design, shaped to fit: the processor, cameras and sensors, Wi-Fi and Bluetooth, lights, sound and power. No plugs, ribbons or adapters. It is checked in our CAD against every part around it, and it arrives from the maker ready to run our software from a microSD card. Turn the model, or pick a part below to see where it sits.

Demo · 6 real-world moments

See CareOne work

Short animated scenes of real moments: what happens today, what CareOne does about it, and what lands on your phone. The same scenes play in the IEMI app.

Demo scenes show how CareOne and its app are designed to behave. CareOne is in design; nothing here is recorded from real equipment yet.

The idea

The bedside locker in every care-home room watches the bed bay at night and calls the right carer itself

How the parts connect

CareOne, 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 CareOne

for (;;) {
    track_t t = ld2450_read();                      // UART, 10 Hz
    plates_t w = nau7802_read_both();               // I2C
    calls_t c = {0};
    bed_step(&t, &plan, clock_now(), &c);           // exit, not back, turns
    floor_step(&t, &c);                             // low and still 30 s
    plate_step(&w, &t, &c);                         // drinks, rubs, checks
    if (key_pressed()) key_step(mic_note(10), &c);  // reason + voice note
    for (call_t *k = c.list; k; k = k->next) {
        if (k->conf < k->line) k->kind = UNSURE;     // never guess
        atecc_sign(k); light_and_tone(k); publish(k); // MQTT over TLS
    }
    vTaskDelay(pdMS_TO_TICKS(100));
}

To your phone

How the data reaches CareOne carers' app

Carers' phones and the nurses' station tablet (Android and iPhone)

1. Bedside locker
2. Staff Wi-Fi (WPA3-Enterprise) · MQTT over TLS
3. IEMI cloud
4. Push to the carer on that unit, escalation after 2 min
5. Carers' phones

Key specs

Targets for production units; they may change during development.

Pricing

Target pricing. Bought separately, CareWatch AI ($349 + $19/mo), TurnCup ($199 + $4/mo) and CallNote ($99 + $4/mo) add up to $647 + $27/month per bed, plus about $480 for a plain wipe-clean bedside locker with castors (£360 at a UK care supplier, est. in dollars), so $1,127 + $27/month. Parts cost about $225 per locker at qty 1 including the locker body (est.).

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

1. 4 Nov 2026, 01:53LatestA care home or ward buys CareOne as the bedside locker at every bed, so its electronics must be one board an assembly house makes and tests the same way every time, with nothing plugged together inside, no mains in the furniture (UL 962), no camera in a private room (CQC surveillance guidance), a sealed wipe-clean top (HBN 00-09), and a radar that still sees the bed edge and the floor beside the bed from inside the locker.

   • What we designed: one rigid-flex board of our own in the bedside locker. A 4-layer top board, 454 by 436 mm, lies 8 mm over the printed service tray, notched round the two load-cell blocks, with the ESP32-S3 module (its antenna at the edge away from the bed), the security chip, the latched microSD card with our software, two weigh chips beside the water-jug and hand-rub load cells, the charger and two soldered backup cells, and the tamper switch pressed by the tray. A strip bent up behind the front face carries the call light and the sounder; a strip bent up behind the bed-side face carries the sealed call key beside the pillow and the voice-note mic; a small tab bent up 65 degrees holds the TI 60 GHz radar chip looking 25 degrees down at the bed; and a 12 mm flex about 0.7 m long runs down the bed-side panel to eight floor-glow LEDs. No camera. It replaces the XIAO ESP32-S3, the LD2450 radar module, two load-cell boards, the mic board, the panel key, two LED sticks, the security board and the PowerBoost charger. See /build/careone-boards
   • How we checked it: the board is written as code and opened in KiCad (0 design-rule violations). The code places 42 parts at their datasheet sizes and checks each sits on its board with no overlaps and fits its gap; that the call light, sounder, call key, mic, tamper switch and floor glow sit on their openings in the locker design; and, in 3D, that the bent radar tab stays 3.8 mm inside the front face and all seven bed-bay calls in the locker design (bed edge, legs over, lying and turning, someone on the floor beside the bed and at its foot, the carer at the bedside) are inside the radar chip's view, the closest 10 degrees from its edge. Design review with the shared rules: 8 pass, 0 fixed, 8 to prove, 0 fail. A 3D model shows the board in the see-through locker or laid flat, and the quote pack and design files are on the board page
   • What we learned: the bench radar had to be turned 40 degrees to the bed and tilted 25 degrees down; the 60 GHz chip sees ±70 degrees across, so the tilt alone covers every call and the tab needs only one fold. Its low-power tracking brings the power-cut draw to about 0.55 W, so two cells aged to 80 % last about 27 hours against the 24 we need (est.; the bench radar alone drew 0.6 W). About 4 a locker in electronics at 1,000 (est.)
   • What is next: the rev T locker CAD with the 1.5 mm tamper boss on the tray, the tray slot and clip channel for the glow tail, the mic port and a radar skin set for 60 GHz, with every board part checked in 3D; the call-key cap tried by residents; and the next product's board, DiamondOne

   See it in 3DFull research and design

2. 30 Oct 2026, 03:17In August 2026 NHS England told a coroner that bed and chair sensor alarms are only an early warning: they should be used after an individual risk assessment, written into the care plan and told to staff and family, as NICE's 2025 falls guideline (NG249) asks (NHS England response, 7 August 2026). A large hospital trial found bed pressure sensors alone did not reduce falls (REFINE, 2014), and in the US the nursing home staffing minimums were repealed from 2 February 2026, so nights stay thin.

   • Market and rules check (DESIGN.md): the NHS England response on falls sensors and NICE NG249, the REFINE bed sensor trial, the CMS repeal of the nursing home staffing minimums and the Sensio RoomMate room sensor, each with what it changes in CareOne (sources M1-M6)
   • Bed exit, not back and someone on the floor now switch on per bed only when a carer records that the falls plan asks for them, with the plan's review date; the setting is signed in the log
   • New assist call: a night pattern change (more bed exits or calls than the resident's own last two weeks) is flagged to the nurse at handover for the falls plan review; now 9 calls, 5 alone and 4 assist
   • No claim that CareOne prevents falls; a signed night workload summary per unit exports for a US nursing home facility assessment
   • No CAD change and no new part (the radar, call key and secure element are already in the locker top); price kept at $590 per locker + $15/month per bed
   • Product page https://iemilabs.com/products/careone/ gains a falls plan spec and two FAQs (does it prevent falls, how it fits the falls plan); the night shift demo now flags pattern changes at handover
   • Next: ask falls leads in the phase 3 buyer review whether they want the calls tied to the falls plan; the next run checks FarmOne

   See it in 3DFull research and design

3. 29 Oct 2026, 02:55A care-home unit with one or two carers at night needs to know who is getting out of bed before they stand, who is on the floor, what each call is for, and that turns, drinks and night checks really happened. Today it buys bed-exit pads and alarms ($39-118 at AliMed), acoustic monitoring or ceiling fall units on quote or lease (Ally Cares; Nobi about $240 a month, secondhand figure), and a plain wipe-clean bedside locker at £360-450 (Medi-Plinth).

   • Buyer check with sources: AliMed bed-exit pads and alarms, Ally Cares acoustic monitoring, Nobi and Vayyar Care fall units, Medi-Plinth and Medguard bedside lockers
   • What we learned: homes buy bed exit, falls and night checks as separate devices or subscriptions; a plain hospital-grade locker costs about £360, nearly twice what we assumed, so CareOne at $590 is close to a plain locker plus one bed-exit alarm
   • Parts list prices checked on shop pages today: $221 per locker at qty 1 (the page said $262); the locker row in the parts list had a comma error and is fixed
   • Cost and margin table in the design notes: about $331 at qty 1 and $245 at qty 100, a 44 % to 58 % margin (est.); price kept at $590 + $15 a month per bed
   • All 7 radar views in the CAD still pass; the 27 h power-cut time rechecked; CAD review clean with no floating parts and no collisions
   • Product page: the first three FAQs answer why not a bed-exit pad or a wall radar, what it costs per bed, and whether there is a camera; a power and size spec group
   • Next: three questions for care homes in customer reviews (new lockers or a retrofit lid, radar against acoustic monitoring, writing into the care plan), then FarmOne for farms

   See it in 3DFull research and design

4. 28 Oct 2026, 11:40A care home or ward needs one thing at each bed that calls a resident getting up before they stand, someone on the floor and what a call is for, and fills the turn, fluid and hand-rub records, without a camera in a private room. CQC asks for the least intrusive option, a bed-exit signal is a Class I exempt bed-patient monitor (21 CFR 880.2400), and homes pay about $240 a room + $19.99 a month for a wall radar (Vayyar) on top of mats and call bells.

   • Market check: who buys one product per bed (care-home groups and wards), what they pay for radar pucks, exit pads and call systems, and the FDA 880.2400, CQC surveillance, HBN 00-09 and WHO hand hygiene rules; sources in DESIGN.md
   • New CAD: the bedside locker (480 x 460 mm, 860 mm top, drawer, cupboard, castors) with a XIAO ESP32-S3 brain, a tracking radar behind 2 mm skins, jug and hand-rub weigh plates, a call key and voice-note mic, a call light, a tone, a secure element, a tamper switch and backup cells in its sealed top, and a floor glow on the bed side; 16/16 parts fit from datasheets, 7 radar views checked, no collisions, no floating parts
   • equipment.json: 8 rules met (no camera, nurse-call cord kept, cleanable top, same size); 8 calls (5 alone), 4 impact cases and every security key
   • idea.json room plan, integration.json (6 parts, 5 app screens with a night shift mode for when no nurse is at the bedside), bom.csv (about $262 a locker), buy.json with 11 key parts
   • New product page at /products/careone/ in Healthcare and care homes: $590 + $15/month per bed against about $897 + $27/month bought separately (est.); folds BedSide, CareWatch AI, TurnCup and CallNote; urine bags, drips, oxygen and door dispensers stay with BagPost, WardPole, DripCrown, OxyCart and RubDock; next: F14 Farms

   See it in 3DFull research and design

5. 28 Oct 2026, 11:40A care home or ward needs one thing at each bed that calls a resident getting up before they stand, someone on the floor and what a call is for, and fills the turn, fluid and hand-rub records, without a camera in a private room. CQC asks for the least intrusive option, a bed-exit signal is a Class I exempt bed-patient monitor (21 CFR 880.2400), and homes pay about $240 a room + $19.99 a month for a wall radar (Vayyar) on top of mats and call bells.

   • Now part of CareOne: https://iemilabs.com/products/careone/

   See it in 3DFull research and design

6. 28 Oct 2026, 11:40A care home or ward needs one thing at each bed that calls a resident getting up before they stand, someone on the floor and what a call is for, and fills the turn, fluid and hand-rub records, without a camera in a private room. CQC asks for the least intrusive option, a bed-exit signal is a Class I exempt bed-patient monitor (21 CFR 880.2400), and homes pay about $240 a room + $19.99 a month for a wall radar (Vayyar) on top of mats and call bells.

   • Now part of CareOne: https://iemilabs.com/products/careone/

   See it in 3DFull research and design

7. 28 Oct 2026, 11:40A care home or ward needs one thing at each bed that calls a resident getting up before they stand, someone on the floor and what a call is for, and fills the turn, fluid and hand-rub records, without a camera in a private room. CQC asks for the least intrusive option, a bed-exit signal is a Class I exempt bed-patient monitor (21 CFR 880.2400), and homes pay about $240 a room + $19.99 a month for a wall radar (Vayyar) on top of mats and call bells.

   • Now part of CareOne: https://iemilabs.com/products/careone/

   See it in 3DFull research and design

8. 28 Oct 2026, 11:40A care home or ward needs one thing at each bed that calls a resident getting up before they stand, someone on the floor and what a call is for, and fills the turn, fluid and hand-rub records, without a camera in a private room. CQC asks for the least intrusive option, a bed-exit signal is a Class I exempt bed-patient monitor (21 CFR 880.2400), and homes pay about $240 a room + $19.99 a month for a wall radar (Vayyar) on top of mats and call bells.

   • Now part of CareOne: https://iemilabs.com/products/careone/

   See it in 3DFull research and design

Smart equipment · legal on the field

CareOne is the bedside locker on castors: 480 x 460 mm, made smart

It replaces the bed bay's existing bedside locker in a care-home room or a hospital ward, at the head of the bed, with every part built in. Everything inside the locker top: brain, radar, mic, both load cells and ADCs, call key, call light, tone, secure element, tamper switch and backup cells; floor glow low in the bed-side panel. About +0.8 kg over a plain locker (est.); no footboard hub, caster cups, bag hook, wall puck or call handset.