The Array of Things (AoT) is a collaborative effort among scientists, universities, federallocal government, industry partners, and communities to collect real-time data on urban environment, infrastructure, and activity for research and public use. AoT uses an open intelligent sensing and edge computing platform called Waggle, developed at Argonne National Laboratory. AoT is funded primarily by the U.S. National Science Foundation. As of October 2019, AoT became an anchor partner in a new NSF-funded project called SAGE: A Software-Defined Sensor Network led by Northwestern University in partnership with the University of Chicago, Argonne National Laboratory, the University of Colorado, the University of California-San Diego, Northern Illinois University, Chicago's Lincoln Park Zoo, the University of Utah, and George Mason University.