HomeStage 2 ready, 28 Oct 2026 (rev A design): smart desk lamp that runs homework time itself (8 calls, 6 alone, 2 assist), call light and voice, ATECC608 and tamper switch inside; 10 sensor views checked in the CAD; not built

StudyOne

IEMI's one product for a child's study desk: the desk lamp, made smart

The child's desk lamp, at the same size and place, checks sums and spelling on the page with hints, follows the child reading aloud, calls breaks, eye distance and dim light on its own light and voice, and sends the parent one evening summary. No video or voice leaves the lamp.

Who buys it: Parents of children aged about 6 to 12 who do homework at home; then tutoring centres and after-school clubs.
Why it pays: $279 + $4/month instead of about $344 + $25/month for an eye-care study lamp, a posture trainer, a focus timer, a homework app ($9.99/month) and a reading app ($14.99/month) bought separately (est.).
Target price: $279 per smart desk lamp + $4/month parent summary (target; stage 2 raised from $229)
First-minute wow: Question 6 says 48 - 19 = 31. The lamp's light turns amber and it says 'look again at number 6'. She writes 29 and gets a green tick, with no parent at the desk.

See the CAD design Concept page

StudyOne 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 study desk flagship is the desk lamp itself. Head: Raspberry Pi Zero 2 W brain, Camera Module 3 Wide over the page, I2S mic, VL53L1X eye-distance sensor tilted at the child, VEML7700 page light sensor, two reading lights and a call light, ATECC608, tamper switch. Base: speaker, amp and ballast
Makes the desk's calls itself: sums and spelling right or 'look again', break due, head too close, light too dim, sat down and left, bedtime; reading-aloud help and a tablet on the desk assist; unsure means unsure
Child rules first: IEC 60598-2-10 children's luminaire, 5 V only, tilt-checked base, COPPA and GDPR-K parental consent, no video or voice leaves the lamp
Gaps listed: screen time away from the desk (the phone's own controls stay), back posture, long explanations (cloud only with parent opt-in), very messy handwriting (unsure)

Use case

A 9-year-old doing homework while her parent is at work

Child at the deskParent at workClass teacher

01Trigger: she sits down at 16:30 and opens her maths book
02Detect: the page camera reads each answer, the eye-distance sensor sees her lean in, the mic follows her reading
03Act: green tick or 'look again', a break at 22 minutes, 'sit up a little', help with a skipped word
04Log: one signed evening summary to the parent: focus time, right first time, words to practise

Outcome: Homework is done with breaks and good light, the parent sees what needs practice, and nothing but counts and words leaves the desk

How it works

Architecture

01
Sense: a page camera, a mic, an eye-distance sensor and a light sensor inside the lamp head
02
Decide: the Raspberry Pi Zero 2 W runs the page, reading, focus and eye models and says unsure below the line
03
Show: the reading light, a call light and a voice from the lamp itself
04
Tell: one signed evening summary over Wi-Fi to the parent app

Hardware

Real parts, buyable today

Bill of materials: about $188 per lamp at qty 1 including the lamp body (prices checked 28 Oct 2026; lamp body est.).

Block	Part	Why this part
Brain	Raspberry Pi Zero 2 W	Enough for handwriting OCR and an offline speech model, in the lamp head
Page	Raspberry Pi Camera Module 3 Wide	Sees the whole open book and the desk from 450 mm
Reading	Adafruit 3421 SPH0645 I2S mic + Adafruit 3006 amp + 1890 speaker	Hears reading and spelling, says words and hints
Eyes and light	Pololu 3415 VL53L1X + Adafruit 5378 VEML7700	Head too close; about 500 lux on the page
Light and calls	2 x Adafruit 2868 NeoPixel Stick 8 RGBW (natural white) + 1 x Adafruit 1426 NeoPixel Stick 8	A reading light with its own white LEDs, and the call light on the lamp
Security	Adafruit 4314 ATECC608 + Omron D2F-01	Signed calls, tamper log
Power	Listed 5 V 3 A USB-C adapter	Only 5 V in the lamp (SELV)

Mechanical

Printable CAD

3 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

Handwriting OCR on a Pi Zero 2 W is slow on a full page; it reads only the answer just written
Reading-aloud help depends on a clean page read; unsure words are never corrected
Children's luminaire, photobiological and radio tests are still to be done
Parents may expect full tutoring; rev A gives hints on sums and spelling only
Not an eye test or attention test: it reminds and reports only

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