Blinkt

* New: Added `get_pixel` to return colour and brightness of a single pixel

This version includes a new `set_all` method, in addition to DocStrings - embedded documentation within the Python module itself.

If you're unfamiliar with what these are, and how they work, try running Python and typing:


>>> import blinkt
>>> help(blinkt)


The `write_byte` method has been renamed to `_write_byte` to indicate that it's an implementation detail, and you should not use it in your code.

Additionally, RPi.GPIO setup now happens the first time you call `show` rather than at module import.

Finally, if you want to know more about the niggles with the APA102s that required the fix in Version 0.0.7 then take a look at our latest blog post: http://blog.pimoroni.com/apa102-variants/ - you'll see that the naked-eye differences between the die in each APA102 variant are actually much more profound under a microscope.

This version includes a fix for a slight variation of the APA102 pixel part used in Blinkt. This alternate part has a smaller, dark (almost black in appearance) die (the small chip in the center of every pixel).

The alternate part required a small tweak to the pixel output protocol in order to latch properly and display the output values. If you've been having a problem with your Blinkt and found, for example, that you needed to run `show()` twice to get it to display something, this is the fix for you.

You can install this release from pip (https://pypi.python.org/pypi/blinkt), with:


sudo pip install blinkt --upgrade