my opinion:
Nodes: given the fact that (most) of the nodes will be space/power/size constraint, C or C++
Server side: all currently used programming languages, including Java, C, Python, ....
my opinion:
Nodes: given the fact that (most) of the nodes will be space/power/size constraint, C or C++
Server side: all currently used programming languages, including Java, C, Python, ....