Henry beside a lake during his travels

STUDENT · MAKER · EXPLORER

Driven by
curiosity.

I’m Henry Cai. I explore how things work — through robotics, code, and the world beyond the classroom.

Discover my projects
OUTSIDE THE CLASSROOM / 01
Portrait of Henry CaiHENRY CAI / A LITTLE ABOUT ME

HELLO, I’M HENRY

Learning by doing.
Exploring by asking.

I’m a Grade 11 student at an international school, with a particular interest in mathematics, physics and programming.

I enjoy turning ideas into things I can test: a robot in the water, a small connected device, or an app. Away from the workbench, I like travelling and taking part in sport.

Say hello ↗

WHAT DRIVES ME

Curiosity has many forms.

Building. Coding. Going somewhere new. Moving together.

Robotics

01

Robotics

Build, test, improve.

AI programming

02

AI programming

Ideas that leave the screen.

Travel

03

Travel

A wider world, a fresh perspective.

Sport

04

Sport

Finding my pace. Moving as a team.

SELECTED PROJECTS

From an idea to a thing.

Small devices. Real questions. Hands-on exploration.

AI Badge prototype on a workbench

01 / ESP32 · AI · AVATAR

AI Badge

A little device for staying connected.

An ESP32-based badge that uses AI to generate an avatar. Follow friends and let them send a little “tap” through touch — a playful way to make a digital connection feel physical.

See another prototype photoAI Badge avatar selection screen
Concept rendering of the parking notification device

02 / ESP32 · E-PAPER · ACCELEROMETER

Parking, with privacy.

A parking notification control device.

An exploration of how to handle requests to move a parked car while protecting the owner’s privacy. The design combines an ESP32, an e-paper display and an accelerometer.

Concept rendering shown.

03 / ROBOTICS · SEAPERCH

Explore beneath the surface.

From the workbench to poolside testing: a look at the SeaPerch project journey.

2026 SeaPerch Challenge
Best Innovation Research Award
SeaPerch assembly session
01 / Build
Testing the robot at the pool
02 / Test
SeaPerch event group photo
03 / Together
More from SeaPerchAt the SeaPerch event

FEATURED APP / iPHONE

NorthKind

Find your direction.
Help others find theirs.

Four instruments. A quieter way to observe. Explore the app, its tools, and the English user guide.

Explore NorthKind ↗
NorthKind Origin Compass — simulated readingInterface preview · simulated readings

ACADEMIC FOUNDATION

A mind for
solving problems.

Mathematics / Physics / Programming

AP Microeconomics5
AP Calculus BC4
01

AMC10

Top 10% · 2nd in school

02

Cayley Mathematics Contest

Perfect score · 1st in city

03

2026 SeaPerch Challenge

Best Innovation Research Award

04

SMC

Gold Award

COMMUNITY & PUBLIC BENEFIT

Make room for kindness.

Art Lights Up Dreams — community materials and moments.

Art Lights Up Dreams community activity poster
Art Lights Up Dreams campaign information

Art Lights Up Dreams

Sharing public-benefit initiatives through apps, so more people can discover and learn about them. These materials introduce Art Lights Up Dreams.

HENRY CAI

Keep asking. Keep making.

Let’s connect ↗