Eric St. Onge



Hand Wash Tracker

Keeping track of who washes their hands.


Fall 2009

Student Project

SVA MFA Interaction Design

Fundamentals of Physical Computing

Interaction Designer


In response to a recent outbreak in Swine Flu, I worked with Colleen Miller, Mike Katayama, and Gene Lu to build a physical computing device that tracked the handwashing habits of users in the department's bathroom.

Using Arduino, the device detected when someone entered the bathroom and locked the door, and when the soap dispenser had been pressed. When the user exited the bathroom, the device would display a positive or negative indicator light. A dial displayed the average handwashing usage of the bathroom based on the positive and negative responses.

For this project, I contributed to the software, sensor placement, and wiring.