So I am trying to line the windows at work with leds (300m/WS2182B strips and an arduino due ) and I am wondering what my limitations are in terms of led run.
When I first tried this project FastSPI_LED2 was the most current library and it did not support my arduino due, and I got busy with other projects. It now seems like the latest version of FastLED supports the due but I haven’t had time to mess with it. Just wondering what you all think before I dive into the project again
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People have been using the Due for projects for over a year now. I even used a prototype of the new parallel output support in FastLED3.1 for a project about a year and a half ago. Personally, I’m more likely to order/use a digix than a due, if only because the digix exposes more pins, which is useful to me 
That said - with with the WS2812 strips, you’re going to want to take advantage of parallel output, because their update rate is ssllooww. Also - how’re you planning on driving the leds? If what you want to do is have a computer generate/run the patterns, I’d recommend looking at fadecandy instead. If your’e going to run all the pattern generation on the device, then the due or the teensy 3.1 is the way to go.