8.31.3 Can you answer these questions?

8.31.3.1 Unable to open Arduino device

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=274049

I have a problem opening an Arduino device: I tried everything, but it keeps giving me this error message. Does anybody know how to fix it? 
I use Wolfram Mathematica 13.0 on Windows 10. I downloaded ... 
[arduino]
 

asked by jaronorbi99 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=88320 Score of 1

8.31.3.2 FindPath not finding any path but FindShortestPath does?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=274019

Puzzled by this. 
I have a directed graph, made by a set of hubs and leaves linking to them. 
Vertices names are strings. 
I tried to: 
... 
[graphs-and-networks] [pathfinding]
 

asked by user305883 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=44334 Score of 1

8.31.3.3 Dedekind Zeta Function in Mathematica (at least for quadratic number field)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=273844

Does there exist some way to use Mathematica to compute the Dedekind Zeta function for an arbitrary algebraic number field? Or does there exist some package to do this? 
I am actually only interested ... 
[special-functions] [packages] [number-theory]
 

asked by Mike Battaglia https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=65533 Score of 3