Upload New File

Alphabot2-Lab/ws2812.py

+# NeoPixel library strandtest example
+# Author: Tony DiCola (tony@tonydicola.com)
+#
+# Direct port of the Arduino NeoPixel library strandtest example.  Showcases
+# various animations on a strip of NeoPixels.
+import time
+
+from rpi_ws281x import Adafruit_NeoPixel, Color
+
+# LED strip configuration:
+LED_COUNT      = 4      # Number of LED pixels.
+LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).
+LED_FREQ_HZ    = 800000  # LED signal frequency in hertz (usually 800khz)
+LED_DMA        = 5       # DMA channel to use for generating signal (try 5)
+LED_BRIGHTNESS = 255     # Set to 0 for darkest and 255 for brightest
+LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
+LED_CHANNEL    = 0
+
+strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS)
+# Create NeoPixel object with appropriate configuration.
+# Intialize the library (must be called once before other functions).
+strip.begin()
+strip.setPixelColor(0, Color(255, 0, 0))       #Red
+strip.setPixelColor(1, Color(0, 255, 0))       #Green
+strip.setPixelColor(2, Color(0, 0, 255))       #Blue
+strip.setPixelColor(3, Color(255, 255, 0))     #Yellow
+strip.show()
+
+time.sleep(2)
+strip.setPixelColor(0, Color(0, 0, 0))       #Red
+strip.setPixelColor(1, Color(0, 0, 0))       #Green
+strip.setPixelColor(2, Color(0, 0, 0))       #Blue
+strip.setPixelColor(3, Color(0, 0, 0))       #Yellow
+strip.show()
+
+