If you're looking for less work and complexity, then Laravel is your choice. However, talking about the framework that worths to learn more, Symfony...
I would assume so as I would think that has nothing to do with what code is sending serial data over an interface.
But I can't speak definitively as...
When you say "used to be", you're probably talking about VB6. Controls still have a Focus method in .NET but application developers are not supposed...
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