New function neopixel

[RaulTrombin]

This create a method to set the neopixel.

We need to solve the slice input issue for functions.

It should transform &[ ] to [ ] when compilling on python somehow. Or solve the issue:

• [x] https://github.com/PyO3/pyo3/discussions/3329
• [x] https://github.com/patrickelectric/cpy-rs/issues/17

[RaulTrombin]

I've tryed different aproaches on cpy-rs, maybe we can make cpy macro just rewrite &[ x , y ] to [ x , y ] when python feature is used.

With &[u8,3] it works fine on Cpp, but triggers the issue for python as pointed.

With [u8;3] it not build the binding for Cpp, as it's FFI unsafe. But works fine on python side. @patrickelectric @joaoantoniocardoso

[joaoantoniocardoso]

I've tryed different aproaches on cpy-rs, maybe we can make cpy macro just rewrite &[ x , y ] to [ x , y ] when python feature is used.

With &[u8,3] it works fine on Cpp, but triggers the issue for python as pointed.

With [u8;3] it not build the binding for Cpp, as it's FFI unsafe. But works fine on python side. @patrickelectric @joaoantoniocardoso

Yeah, I agree, that's the way as it seems to be a language translation limitation

[RaulTrombin]

@patrickelectric it's in sync with cpy-rs, waiting for the next release to rebase it.

[RaulTrombin]

Some major changes was done into this PR,

It was updated to the last cpy-binder version, Now it have an special statement to handle just python or cpp functions.

The set_neopixel method was added for both libraries. A similar rainbow example was added to Cpp and Python source folders.

CI's Clippy warn for unsafe ptr deref needs to disabled.

Now we have set_neopixel like:

Cpp:

  uint8_t rgb_array[3]; 
  // uint8_t rgb_array[3][3];  //lenght shoud be 3. or sizeof(rgb_array)/sizeof(rgb_array[0])
  set_neopixel(&rgb_array, array_lenght);

Python:

  navigator.set_neopixel( [  [rgb_array], ...., ....   ] );

some similar example reference:

• https://github.com/patrickelectric/cpy-rs/pull/24/files