LED Lights (IMAGE) U.S. National Science Foundation Caption Image from wearable still image camera shows a youth's perspective: what she sees and encounters during testing of code that makes an LED light up when changes are detected by a light sensor. Credit Victor Lee, Utah State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.