In the following are presented the most important implemen-
tation choices for the platform devices that are based on the re-
quirements in Sections III and V and are suitable for long-term
environmental monitoring IoT applications.
A. Sensor Node Implementation
Fig. 5 shows several sensor nodes designed for long-term en-
vironmental monitoring applications. The node for in situ wild-
fire monitoring [PCB in Fig. 5(a)] is optimized for cost since the
reference application typically requires a high number of nodes