2025

Sur-Foam Chair

A foam-sensing sofa that controls the living room by how you sit and touch.

Role
Research lead, first author
Team
Two
Timeline
Jul to Oct 2025
Tools
ESP32, capacitive sensing, Excel
Looping video
Hero: the product in use

Problem

Controlling a smart home still means reaching for a phone or a remote.

Approach

Read posture and touch through the sofa itself, and infer what the room should do.

Outcome

Published at ICADI 2025 (ACM). People needed less attention than with explicit controls.

Nineteen hours of real living rooms showed where control breaks down.

How you sampled and coded the footage, and the interaction model it produced.

Image
Interaction model: sensing, inference, adaptation, control, representation

Foam that knows six postures and six gestures.

Looping video
Video: sitting down dims the lights
Image
Sensor layout inside the foam
Image
The nine presets

Implicit control worked, and asked for less attention.

94.5%

Mean interaction effectiveness across nine presets

7.8%

Lower attention load than explicit controls (p < 0.05)

Link the paper and say what the study can and can’t claim.