Project Intelligence · INDL 2010 · Fall 2026

Halo

A food freshness countdown for shared fridges. Tap in the days, and a ring of light counts them down.

[IMAGE: hero render]

Course

INDL 2010 ID Studio

Team

Group 2 · [ROLE]

Timeline

[START] to Oct 30, 2026

Tools

Fusion, Arduino, FDM printing

01

·

Problem

In a shared fridge, nobody knows how old anything is.

Leftovers go in without a date, roommates forget whose is whose, and food gets thrown out too early or eaten too late. Labels and markers get skipped because they take effort every single time.

[ADD: design goal / how might we]

02

·

Research & Inspiration

[ADD: headline]

[ADD: research findings]

02

·

Research & Inspiration

[ADD: headline]

[ADD: research findings]

03

·

Sketches

[ADD: headline]

[ADD: how the concept developed]

[IMAGE: sketches]

[IMAGE: sketches]

[IMAGE: sketches]

[IMAGE: sketches]

[IMAGE: sketches]

[IMAGE: sketches]

04

·

Storyboard

From fridge to fork.

[IMAGE: storyboard]

05

·

Interaction Design

One tap per day. The light does the remembering.

Tap to set

Six taps, six days. Each bright segment is a day left.

Counting down

One segment fades each day as the color drifts to orange.

Time’s up

The whole ring pulses red. Hold the center to reset.

[IMAGE: flowchart]

06

·

Foam Mockup

What the foam model got wrong.

[IMAGE: foam model on container]

[IMAGE: foam model detail]

Hooking the cord was hard

The hook moved to the top corner as a wave crest the cord drops into, with the anchor holes on the bottom edge.

It tilted face down

Two feet on the back tilt the face up 5° on slanted containers.

Where to tap wasn’t clear

A raised circular target now marks the touch area in the center of the face.

07

·

Initial CAD

[ADD: headline]

[IMAGE: CAD views]

[IMAGE: CAD views]

08

·

3D Prints & In-Use Testing

[ADD: headline]

[ADD: print learnings, fit tests]

[IMAGE: prints]

[IMAGE: in-use tests]

09

·

Electronics

[ADD: headline]

[IMAGE: circuit diagram]

[IMAGE: breadboard test circuit]

[IMAGE: soldering / construction photos]

Brain

Seeed XIAO ESP32S3

Light

12-LED ring behind a translucent diffuser

Wake

Light sensor turns it on when the fridge opens

Touch

Copper pad under the tap target

Power

450 mAh battery, USB-C charging

Attach

Elastic silicone cord

10

·

Final Assembly

[ADD: headline]

[IMAGE: exploded view]

[IMAGE: assembly photos]

11

·

CMF

[ADD: headline]

[ADD: color]

[ADD: color]

[ADD: material]

[ADD: finish]

12

·

Renders

[IMAGE: renders]

[IMAGE: renders]

[IMAGE: renders]

13

·

Final Photos & Video

[IMAGE: final photos]

[IMAGE: final photos]

[VIDEO: demo video]

14

·

Reflection

[ADD: headline]

[ADD: what I learned, what I'd change next]