Correct endianness of RMT signal in neopixel example

[musdom]

Bits were sent reversed, which worked for 0xff but not at smaller values to dim the LED. Also added rainbow example using a hsv function.

[ivmarkov]

Thanks!

[ivmarkov]

@musdom You need to fix the formatting though, if you could do that?

[musdom]

@ivmarkov could be because I copy pasted code into github editor from vscode. This time I ran it through cargo fmt. Is it better? Thanks

[musdom]

Wait let me fix the build failures

[ivmarkov]

Wait let me fix the build failures

Since the examples folder is part of esp-idf-hal, I think you should be importing crate:: not esp_idf_hal::.

Update: BS ^^^ :)

[ivmarkov]

The problem is that from within esp-idf-hal you cannot use, or depend on esp-idf-svc, as esp-idf-svc itself depends on esp-idf-hal. Just replace all logging code with simple println! as all other examples do.

[musdom]

Ok I actually cloned my fork of the repo, got the patch built and flashed into my board and working correctly, which is something I should've done in the first place :x My bad!