commit 329e7152d079f269665e934a2239ffddb235ae00
Author: lub <git@lubiland.de>
Date:   Sat Feb 27 21:33:06 2021 +0100

    initial commit

diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..85f2c4f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+blinkstick
+pyusb
diff --git a/src/blinki.py b/src/blinki.py
new file mode 100644
index 0000000..4852589
--- /dev/null
+++ b/src/blinki.py
@@ -0,0 +1,60 @@
+from blinkstick import blinkstick
+
+from random import randint, choice
+from time import sleep
+
+def set_all_leds(device, grb=[0,0,0]):
+    """
+    Takes a GRB color array as input and sets the color on all LEDs.
+    """
+    return device.set_led_data(0, grb*32)
+def morph_color(color, steps):
+    """
+    Takes an int between 0-255 and either increments or decreases it by the specified steps.
+    """
+    direction = choice([-1, 1])
+    color_candidate = color+steps*direction
+
+    # if we go out of bounds reverse the direction
+    if color_candidate < 0:
+        return color+steps*direction*-1
+    elif color_candidate > 255:
+        return color+steps*direction*-1
+    else:
+        return color_candidate
+def morph_grb(grb, steps, mode='single'):
+    """
+    Morphs a GRB array randomly by the specified steps.
+
+    Available modes:
+        single - only morph a single color
+        all - morph all colors
+    """
+
+    if mode == 'single':
+        color_index = randint(0, len(grb)-1)
+        grb[color_index] = morph_color(grb[color_index], steps)
+    elif mode == 'all':
+        for color_index in range(len(grb)):
+            grb[color_index] = morph_color(grb[color_index], steps)
+    else:
+        raise Exception(f'Mode "{mode}" is not supported.')
+
+    return grb
+
+
+
+device = blinkstick.find_first()
+
+# get a random initial color
+grb = [
+    randint(1, 255),
+    randint(1, 255),
+    randint(1, 255)
+]
+
+while True:
+    set_all_leds(device, grb)
+    sleep(0.02) # minimal delay to not crash the blinkstick
+
+    grb = morph_grb(grb, 2)