A couple of stupid questions. I’m a bit out of my depths.
I recently bought a sensor (Laird RS191) and it has an app key taped to it that looks something like this:
It also has a QR code attached to it.
When I log into TTN to set up a device it populates an AppKey for me. I was playing with loraserver.io earlier and that does not populate an AppKey. Both would seem to prefer a hex code (and not what is pasted above). This has me wondering a few things.
Is there a usual process for using app keys? Is it best practice to use what comes with my node? Would it be better to provide what TTN provides me? Obviously I can overwrite either, is there a preferred method of going about this?
If I were to use the one with my node, what’s the best way to convert that string of stuff (what is that format called by the way) into hex?
What’s the best way to use the QR code? Any scanner I threw at it seemed a bit confused (but it did give me something to copy).
Thanks for any help you can offer! I need it.