This was done in a workshop run by Cindy Kao in the MIT Media Lab. We wanted to created a fun temporary tattoo for children in pediatric wards to communicate and log their pain readings with their medical providers. Our system involves an electronic tattoo, GUI, and web server.
We designed a bear tattoo where the user can record their pain levels and call for a physician. An LED confirms when these buttons are pressed or when a doctor is going to come visit them.
The circuit is a capacitive sensor wired to a micro controller. This logic was communicated via bluetooth where the pain readings were stored in a web server.
I was personally responsible for the concept design, capacitive sensing logic and calibration, communication with the software and web server, and design of the GUI.
Bear designed by Josh Woodward.
