commit b9b28491c52b9c1c0acbff43bb30793b9641642e
Author: blaz-r <blaz.rolih@gmail.com>
Date:   Mon Apr 12 14:19:32 2021 +0200

    first commit

diff --git a/README.md b/README.md
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+# pi_pico_neopixel
+a library for using ws2812b and sk6812 leds (aka neopixels) with Raspberry Pi Pico
+
+![example] (
+    https://github.com/blaz-r/pi_pico_neopixel/pico_rgbw_rgb.jpg)
+
+You'll first need to save the neopixel.py file to your device (for example, open it in Thonny and go file > save as and select MicroPython device. Give it the same name). Once it's there, you can import it into your code. 
+
+You create an object with the parameters number of LEDs, state machine ID, GPIO number and mode (RGB or RGBW) in that order. So, to create a strip of 10 leds on state machine 0 and GPIO 0 in RGBW mode you use:
+
+```
+pixels = ws2812b.ws2812b(10, 0, 0, "RGBW")
+```
+
+This class has many methods, two main ones being show() which sends the data to the strip, and set_pixel which sets the color values for a particular LED. The parameters are LED number, red, green, blue or a tuple of form (red, green blue) with the colors taking values between 0 and 255.
+
+At the moment, this isn't working with the interpreter, so you have to run it from a file. Looks like it's running just too slow to keep up with the PIO buffer from the interpreter. The key methods are set_pixel(n (r,g,b)), set_pixel_line(p1, p2, (r, g, b)) which sets a row of pixels from pixel p1 to pixel p2 (inclusive), and fill((r,g,b)) which fills all the pixels with the color r, g, b.
+If you want to use the library for RGBW, each function works the same just with last parameter being "white": set_pixel(num, (r, g, b, w))
+
+```
+pixels.set_pixel(5, (10, 0, 0))
+pixels.set_pixel_line(5, 7, (0, 10, 0))
+pixels.fill((20, 5, 0))
+
+rgb1 = (0, 0, 50, 0)
+rgb2 = (50, 0, 0, 250)
+pixels.set_pixel(42, (0, 50, 0))
+pixels.set_pixel_line(5, 7, rgb1)
+pixels.set_pixel_line_gradient(0, 13, rgb1, rgb2)
+```
+
+Library is extended verison of https://github.com/blaz-r/pico_python_ws2812b, originaly forked from https://github.com/benevpi/pico_python_ws2812b.
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