Tuesday, July 8, 1:30-2:30 p.m. – Learn how to build a switch to turn your LED on and off. Practice making wristbands for your favorite team and school. Free. The public is welcome. Open to rising middle school and high school youth. Find out more and register by calling 404-303-6130 or emailing: email@example.com. Sandy Springs Branch Library, 395 Mount Vernon Highway, Sandy Springs, 30328.