Have you ever wondered what does those strange patterns on an indicator light means? We are running a study about enabling much richer interaction with those LEDs.
The study will take place in Gates Computer Science Building and it will only takes 20 minutes. You will be compensated for your time by 10 dollars. I need a lot of users so there are many free slots. Please sign up at https://infoled.youcanbook.me
Please do not message this poster about other commercial services.