diff --git a/neopixel.py b/neopixel.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd875a4e2a63c40bfec1cdae05ed681f783e1f3b
--- /dev/null
+++ b/neopixel.py
@@ -0,0 +1,340 @@
+import array, time
+from machine import Pin
+import rp2
+
+##downloaded from the official site
+
+# PIO state machine for RGB. Pulls 24 bits (rgb -> 3 * 8bit) automatically
+@rp2.asm_pio(sideset_init=rp2.PIO.OUT_LOW, out_shiftdir=rp2.PIO.SHIFT_LEFT, autopull=True, pull_thresh=24)
+def ws2812():
+    T1 = 2
+    T2 = 5
+    T3 = 3
+    wrap_target()
+    label("bitloop")
+    out(x, 1)               .side(0)    [T3 - 1]
+    jmp(not_x, "do_zero")   .side(1)    [T1 - 1]
+    jmp("bitloop")          .side(1)    [T2 - 1]
+    label("do_zero")
+    nop()                   .side(0)    [T2 - 1]
+    wrap()
+
+
+# PIO state machine for RGBW. Pulls 32 bits (rgbw -> 4 * 8bit) automatically
+@rp2.asm_pio(sideset_init=rp2.PIO.OUT_LOW, out_shiftdir=rp2.PIO.SHIFT_LEFT, autopull=True, pull_thresh=32)
+def sk6812():
+    T1 = 2
+    T2 = 5
+    T3 = 3
+    wrap_target()
+    label("bitloop")
+    out(x, 1)               .side(0)    [T3 - 1]
+    jmp(not_x, "do_zero")   .side(1)    [T1 - 1]
+    jmp("bitloop")          .side(1)    [T2 - 1]
+    label("do_zero")
+    nop()                   .side(0)    [T2 - 1]
+    wrap()
+
+
+# we need this because Micropython can't construct slice objects directly, only by
+# way of supporting slice notation.
+# So, e.g. slice_maker[1::4] gives a slice(1,None,4) object.
+class slice_maker_class:
+    def __getitem__(self, slc):
+        return slc
+
+
+slice_maker = slice_maker_class()
+
+
+# Delay here is the reset time. You need a pause to reset the LED strip back to the initial LED
+# however, if you have quite a bit of processing to do before the next time you update the strip
+# you could put in delay=0 (or a lower delay)
+#
+# Class supports different order of individual colors (GRB, RGB, WRGB, GWRB ...). In order to achieve
+# this, we need to flip the indexes: in 'RGBW', 'R' is on index 0, but we need to shift it left by 3 * 8bits,
+# so in it's inverse, 'WBGR', it has exactly right index. Since micropython doesn't have [::-1] and recursive rev()
+# isn't too efficient we simply do that by XORing (operator ^) each index with 3 (0b11) to make this flip.
+# When dealing with just 'RGB' (3 letter string), this means same but reduced by 1 after XOR!.
+# Example: in 'GRBW' we want final form of 0bGGRRBBWW, meaning G with index 0 needs to be shifted 3 * 8bit ->
+# 'G' on index 0: 0b00 ^ 0b11 -> 0b11 (3), just as we wanted.
+# Same hold for every other index (and - 1 at the end for 3 letter strings).
+
+class Neopixel:
+    # Micropython doesn't implement __slots__, but it's good to have a place
+    # to describe the data members...
+    # __slots__ = [
+    #    'num_leds',   # number of LEDs
+    #    'pixels',     # array.array('I') of raw data for LEDs
+    #    'mode',       # mode 'RGB' etc
+    #    'W_in_mode',  # bool: is 'W' in mode
+    #    'sm',         # state machine
+    #    'shift',      # shift amount for each component, in a tuple for (R,B,G,W)
+    #    'delay',      # delay amount
+    #    'brightnessvalue', # brightness scale factor 1..255
+    # ]
+
+    def __init__(self, num_leds, state_machine, pin, mode="RGB", delay=0.0001):
+        """
+        Constructor for library class
+        :param num_leds:  number of leds on your led-strip
+        :param state_machine: id of PIO state machine used
+        :param pin: pin on which data line to led-strip is connected
+        :param mode: [default: "RGB"] mode and order of bits representing the color value.
+        This can be any order of RGB or RGBW (neopixels are usually GRB)
+        :param delay: [default: 0.0001] delay used for latching of leds when sending data
+        """
+        self.pixels = array.array("I", [0] * num_leds)
+        self.mode = mode
+        self.W_in_mode = 'W' in mode
+        if self.W_in_mode:
+            # RGBW uses different PIO state machine configuration
+            self.sm = rp2.StateMachine(state_machine, sk6812, freq=8000000, sideset_base=Pin(pin))
+            # tuple of values required to shift bit into position (check class desc.)
+            self.shift = ((mode.index('R') ^ 3) * 8, (mode.index('G') ^ 3) * 8,
+                          (mode.index('B') ^ 3) * 8, (mode.index('W') ^ 3) * 8)
+        else:
+            self.sm = rp2.StateMachine(state_machine, ws2812, freq=8000000, sideset_base=Pin(pin))
+            self.shift = (((mode.index('R') ^ 3) - 1) * 8, ((mode.index('G') ^ 3) - 1) * 8,
+                          ((mode.index('B') ^ 3) - 1) * 8, 0)
+        self.sm.active(1)
+        self.num_leds = num_leds
+        self.delay = delay
+        self.brightnessvalue = 255
+
+    def brightness(self, brightness=None):
+        """
+        Set the overall value to adjust brightness when updating leds
+        or return class brightnessvalue if brightness is None
+        :param brightness: [default: None] Value of brightness on interval 1..255
+        :return: class brightnessvalue member or None
+        """
+        if brightness is None:
+            return self.brightnessvalue
+        else:
+            if brightness < 1:
+                brightness = 1
+        if brightness > 255:
+            brightness = 255
+        self.brightnessvalue = brightness
+
+    def set_pixel_line_gradient(self, pixel1, pixel2, left_rgb_w, right_rgb_w, how_bright=None):
+        """
+        Create a gradient with two RGB colors between "pixel1" and "pixel2" (inclusive)
+        :param pixel1: Index of starting pixel (inclusive)
+        :param pixel2: Index of ending pixel (inclusive)
+        :param left_rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing starting color
+        :param right_rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing ending color
+        :param how_bright: [default: None] Brightness of current interval. If None, use global brightness value
+        :return: None
+        """
+        if pixel2 - pixel1 == 0:
+            return
+        right_pixel = max(pixel1, pixel2)
+        left_pixel = min(pixel1, pixel2)
+
+        with_W = len(left_rgb_w) == 4 and self.W_in_mode
+        r_diff = right_rgb_w[0] - left_rgb_w[0]
+        g_diff = right_rgb_w[1] - left_rgb_w[1]
+        b_diff = right_rgb_w[2] - left_rgb_w[2]
+        if with_W:
+            w_diff = (right_rgb_w[3] - left_rgb_w[3])
+
+        for i in range(right_pixel - left_pixel + 1):
+            fraction = i / (right_pixel - left_pixel)
+            red = round(r_diff * fraction + left_rgb_w[0])
+            green = round(g_diff * fraction + left_rgb_w[1])
+            blue = round(b_diff * fraction + left_rgb_w[2])
+            # if it's (r, g, b, w)
+            if with_W:
+                white = round(w_diff * fraction + left_rgb_w[3])
+                self.set_pixel(left_pixel + i, (red, green, blue, white), how_bright)
+            else:
+                self.set_pixel(left_pixel + i, (red, green, blue), how_bright)
+
+    def set_pixel_line(self, pixel1, pixel2, rgb_w, how_bright=None):
+        """
+        Set an array of pixels starting from "pixel1" to "pixel2" (inclusive) to the desired color.
+        :param pixel1: Index of starting pixel (inclusive)
+        :param pixel2: Index of ending pixel (inclusive)
+        :param rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing color to be used
+        :param how_bright: [default: None] Brightness of current interval. If None, use global brightness value
+        :return: None
+        """
+        if pixel2 >= pixel1:
+            self.set_pixel(slice_maker[pixel1:pixel2 + 1], rgb_w, how_bright)
+
+    def set_pixel(self, pixel_num, rgb_w, how_bright=None):
+        """
+        Set red, green and blue (+ white) value of pixel on position <pixel_num>
+        pixel_num may be a 'slice' object, and then the operation is applied
+        to all pixels implied by the slice (most useful when called via __setitem__)
+        :param pixel_num: Index of pixel to be set or slice object representing multiple leds
+        :param rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing color to be used
+        :param how_bright: [default: None] Brightness of current interval. If None, use global brightness value
+        :return: None
+        """
+        if how_bright is None:
+            how_bright = self.brightness()
+        sh_R, sh_G, sh_B, sh_W = self.shift
+        bratio = how_bright / 255.0
+
+        red = round(rgb_w[0] * bratio)
+        green = round(rgb_w[1] * bratio)
+        blue = round(rgb_w[2] * bratio)
+        white = 0
+        # if it's (r, g, b, w)
+        if len(rgb_w) == 4 and self.W_in_mode:
+            white = round(rgb_w[3] * bratio)
+
+        pix_value = white << sh_W | blue << sh_B | red << sh_R | green << sh_G
+        # set some subset, if pixel_num is a slice:
+        if type(pixel_num) is slice:
+            for i in range(*pixel_num.indices(self.num_leds)):
+                self.pixels[i] = pix_value
+        else:
+            self.pixels[pixel_num] = pix_value
+
+    def get_pixel(self, pixel_num):
+        """
+        Get red, green, blue and white (if applicable) values of pixel on position <pixel_num>
+        :param pixel_num: Index of pixel to be set
+        :return rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing color to be used
+        """
+        balance = self.pixels[pixel_num]
+        sh_R, sh_G, sh_B, sh_W = self.shift
+        if self.W_in_mode:
+            w = (balance >> sh_W) & 255
+        b = (balance >> sh_B) & 255
+        r = (balance >> sh_R) & 255
+        g = (balance >> sh_G) & 255
+        red = int(r * 255 / self.brightness() )
+        green = int(g * 255 / self.brightness() )
+        blue = int(b * 255 / self.brightness() )
+        if self.W_in_mode:
+            white = int(w * 255 / self.brightness() )
+            return (red,green,blue,white)
+        else:
+            return (red,green,blue)
+
+    def __setitem__(self, idx, rgb_w):
+        """
+        if npix is a Neopixel object,
+        npix[10] = (0,255,0)        # <- sets #10 to green
+        npix[15:21] = (255,0,0)     # <- sets 16,17 .. 20 to red
+        npix[21:29:2] = (0,0,255)   # <- sets 21,23,25,27 to blue
+        npix[1::2] = (0,0,0)        # <- sets all odd pixels to 'off'
+        (the 'slice' cases pass idx as a 'slice' object, and
+        set_pixel processes the slice)
+        :param idx: Index can either be indexing number or slice
+        :param rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing color to be used
+        :return:
+        """
+        self.set_pixel(idx, rgb_w)
+
+    def colorHSV(self, hue, sat, val):
+        """
+        Converts HSV color to rgb tuple and returns it.
+        The logic is almost the same as in Adafruit NeoPixel library:
+        https://github.com/adafruit/Adafruit_NeoPixel so all the credits for that
+        go directly to them (license: https://github.com/adafruit/Adafruit_NeoPixel/blob/master/COPYING)
+        :param hue: Hue component. Should be on interval 0..65535
+        :param sat: Saturation component. Should be on interval 0..255
+        :param val: Value component. Should be on interval 0..255
+        :return: (r, g, b) tuple
+        """
+        if hue >= 65536:
+            hue %= 65536
+
+        hue = (hue * 1530 + 32768) // 65536
+        if hue < 510:
+            b = 0
+            if hue < 255:
+                r = 255
+                g = hue
+            else:
+                r = 510 - hue
+                g = 255
+        elif hue < 1020:
+            r = 0
+            if hue < 765:
+                g = 255
+                b = hue - 510
+            else:
+                g = 1020 - hue
+                b = 255
+        elif hue < 1530:
+            g = 0
+            if hue < 1275:
+                r = hue - 1020
+                b = 255
+            else:
+                r = 255
+                b = 1530 - hue
+        else:
+            r = 255
+            g = 0
+            b = 0
+
+        v1 = 1 + val
+        s1 = 1 + sat
+        s2 = 255 - sat
+
+        r = ((((r * s1) >> 8) + s2) * v1) >> 8
+        g = ((((g * s1) >> 8) + s2) * v1) >> 8
+        b = ((((b * s1) >> 8) + s2) * v1) >> 8
+
+        return r, g, b
+
+    def rotate_left(self, num_of_pixels=None):
+        """
+        Rotate <num_of_pixels> pixels to the left
+        :param num_of_pixels: Number of pixels to be shifted to the left. If None, it shifts for 1.
+        :return: None
+        """
+        if num_of_pixels is None:
+            num_of_pixels = 1
+        self.pixels = self.pixels[num_of_pixels:] + self.pixels[:num_of_pixels]
+
+    def rotate_right(self, num_of_pixels=None):
+        """
+        Rotate <num_of_pixels> pixels to the right
+        :param num_of_pixels: Number of pixels to be shifted to the right. If  None, it shifts for 1.
+        :return: None
+        """
+        if num_of_pixels is None:
+            num_of_pixels = 1
+        num_of_pixels = -1 * num_of_pixels
+        self.pixels = self.pixels[num_of_pixels:] + self.pixels[:num_of_pixels]
+
+    def show(self):
+        """
+        Send data to led-strip, making all changes on leds have an effect.
+        This method should be used after every method that changes the state of leds or after a chain of changes.
+        :return: None
+        """
+        # If mode is RGB, we cut 8 bits of, otherwise we keep all 32
+        cut = 8
+        if self.W_in_mode:
+            cut = 0
+        sm_put = self.sm.put
+        for pixval in self.pixels:
+            sm_put(pixval, cut)
+        time.sleep(self.delay)
+
+    def fill(self, rgb_w, how_bright=None):
+        """
+        Fill the entire strip with color rgb_w
+        :param rgb_w: Tuple of form (r, g, b) or (r, g, b, w) representing color to be used
+        :param how_bright: [default: None] Brightness of current interval. If None, use global brightness value
+        :return: None
+        """
+        # set_pixel over all leds.
+        self.set_pixel(slice_maker[:], rgb_w, how_bright)
+
+    def clear(self):
+        """
+        Clear the entire strip, i.e. set every led color to 0.
+        :return: None
+        """
+        self.pixels = array.array("I", [0] * self.num_leds)
\ No newline at end of file