As Ralph Waldo Emerson observed, “Build a better mousetrap, and the world will beat a path to your door.” Now, some 150 years later, somebody has finally built one! On Friday, April 25, not only was a better mousetrap on display, but also 22 other creative, useful, and socially conscious electronic inventions. The Electrical and Computer Engineering Department (ECE) at the University of Massachusetts Amherst hosted its 24th annual Senior Design Project Day on campus, when 23 teams of ECE students unveiled a high-tech floor show for the electronics of the future. This year’s senior design projects included a smart, have-a-heart, mouse trap, a virtual mountain bike, an electronic scarecrow, an ID bracelet that exchanges contact information with just a handshake, an electronic child reporting device, and much, much more. For full descriptions of all these projects, go to http://www.ecs.umass.edu/ece/sdp/sdp14/teams.html.