Add neopixel example

examples/one_rgb_light.py

@@ -0,0 +1,52 @@
+"""RGB LED strip as a full color light."""
+
+import circuitmatter as cm
+from circuitmatter.device_types.lighting import extended_color
+
+import board
+import neopixel
+
+
+class RGBPixel(extended_color.ExtendedColorLight):
+    def __init__(self, name, pixels):
+        super().__init__(name)
+        self._pixels = pixels
+        self._brightness = 0.1
+
+    @property
+    def color_rgb(self):
+        return self._color
+
+    @color_rgb.setter
+    def color_rgb(self, value):
+        self._pixels.fill(value)
+        print(f"new color 0x{value:06x}")
+
+    @property
+    def brightness(self):
+        return self._brightness
+
+    @brightness.setter
+    def brightness(self, value):
+        self._brightness = value
+        self._pixels.brightness = value
+        print(f"new brightness {value}")
+
+    def on(self):
+        self._pixels.brightness = self._brightness
+        print("on!")
+
+    def off(self):
+        self._pixels.brightness = 0
+        print("off!")
+
+
+matter = cm.CircuitMatter()
+# This is a 8mm NeoPixel breadboard LED. (https://www.adafruit.com/product/1734)
+# Any pixelbuf compatible strip should work. The RGBPixel class will control the
+# entire strip of pixels.
+np = neopixel.NeoPixel(board.D12, 1, pixel_order="RGB")
+led = RGBPixel("led1", np)
+matter.add_device(led)
+while True:
+    matter.process_packets()