+ + + +

Strandtest

+

This script just does some fancy patterns to show of the neopixels' capabilities. +Runs in an endless loop, take a look at the code to see what it does more +precisely.

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import LuxcenaNeo as neo  # Can be imported as LuxcenaNeo as well. but anything else and it will fail...
+import time
+
+def colorWipe(color, wait_ms=50):
+    """Wipe color across display a pixel at a time."""
+    for i in range(neo.strip.numPixels()):
+        neo.strip.setPixelColor(i, color)
+        neo.strip.show()
+        time.sleep(wait_ms/1000.0)
+
+def theaterChase(color, wait_ms=50, iterations=10):
+    """Movie theater light style chaser animation."""
+    for j in range(iterations):
+        for q in range(3):
+            for i in range(0, neo.strip.numPixels(), 3):
+                neo.strip.setPixelColor(i+q, color)
+            neo.strip.show()
+            time.sleep(wait_ms/1000.0)
+            for i in range(0, neo.strip.numPixels(), 3):
+                neo.strip.setPixelColor(i+q, 0)
+
+def wheel(pos):
+    """Generate rainbow colors across 0-255 positions."""
+    if pos < 85:
+        return neo.Color(pos * 3, 255 - pos * 3, 0)
+    elif pos < 170:
+        pos -= 85
+        return neo.Color(255 - pos * 3, 0, pos * 3)
+    else:
+        pos -= 170
+        return neo.Color(0, pos * 3, 255 - pos * 3)
+
+def rainbow(wait_ms=20, iterations=1):
+    """Draw rainbow that fades across all pixels at once."""
+    for j in range(256*iterations):
+        for i in range(neo.strip.numPixels()):
+            neo.strip.setPixelColor(i, wheel((i+j) & 255))
+        neo.strip.show()
+        time.sleep(wait_ms/1000.0)
+
+def rainbowCycle(wait_ms=20, iterations=5):
+    """Draw rainbow that uniformly distributes itself across all pixels."""
+    for j in range(256*iterations):
+        for i in range(strip.numPixels()):
+            neo,strip.setPixelColor(i, wheel(((i * 256 / neo.strip.numPixels()) + j) & 255))
+        neo.strip.show()
+        time.sleep(wait_ms/1000.0)
+
+def theaterChaseRainbow(wait_ms=50):
+    """Rainbow movie theater light style chaser animation."""
+    for j in range(256):
+        for q in range(3):
+            for i in range(0, neo.strip.numPixels(), 3):
+                neo.strip.setPixelColor(i+q, wheel((i+j) % 255))
+            neo.strip.show()
+            time.sleep(wait_ms/1000.0)
+            for i in range(0, neo.strip.numPixels(), 3):
+                neo.strip.setPixelColor(i+q, 0)
+
+
+class Main(neo.NeoBehaviour):
+
+    def onStart(self):
+        # Change the brightness of the strip
+        neo.strip.setBrightness(100)
+
+        # Do an endless loop with some default neopixel test patterns
+        while True:
+            colorWipe(neo.Color(255, 0, 0))  # Red wipe
+            colorWipe(neo.Color(0, 255, 0))  # Blue wipe
+            colorWipe(neo.Color(0, 0, 255))  # Green wipe
+
+            theaterChase(neo.Color(127, 127, 127))  # White theater chase
+            theaterChase(neo.Color(127,   0,   0))  # Red theater chase
+            theaterChase(neo.Color(  0,   0, 127))  # Blue theater chase
+
+            rainbow()
+            rainbowCycle()
+            theaterChaseRainbow()
+

+

+ + + + + + + + + +