  The Techtile measurement infrastructure is a multi-functional, versatile
testbed for new communication and sensing technologies relying on fine-grained
distributed resources. The facility enables experimental research on
hyper-connected interactive environments and validation of new wireless
connectivity, sensing and positioning solutions. It consists of a data
acquisition and processing equipment backbone and a fabric of dispersed edge
computing devices, Software-Defined Radios, sensors, and LED sources. These
bring intelligence close to the applications and can also collectively function
as a massive, distributed resource. Furthermore, the infrastructure allows
exploring more degrees and new types of diversity, i.e., scaling up the number
of elements, introducing `3D directional diversity' by deploying the
distributed elements with different orientations, and `interface diversity' by
exploiting multiple technologies and hybrid signals (RF, acoustic, and visible
light).
