First working node of the Wi-GIM prototype.

First working node of the WiGim prototype. The cell has 6 elements one of which is the master node. The calibration tests allow to estimate the accuracy of the UWB measuring system and to set it up. This test also permit to verify the correct functioning of the communication protocol between the nodes. Actually the system is still powered by external power supply and at nowadays the efforts of the development team are concentrated in the resolution of issues related to energy optimization to maximize the lifetime of the batteries even in critical conditions.