Merge pull request #22 from kattni/update-color-picker

Adding CircuitPython color picker example code

Author: kattni

examples/ble_color_picker.py

@@ -0,0 +1,23 @@
+# CircuitPython NeoPixel Color Picker Example
+
+import board
+import neopixel
+from adafruit_ble.uart_server import UARTServer
+from adafruit_bluefruit_connect.packet import Packet
+from adafruit_bluefruit_connect.color_packet import ColorPacket
+
+uart_server = UARTServer()
+
+pixels = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.1)
+
+while True:
+    # Advertise when not connected.
+    uart_server.start_advertising()
+    while not uart_server.connected:
+        pass
+
+    while uart_server.connected:
+        packet = Packet.from_stream(uart_server)
+        if isinstance(packet, ColorPacket):
+            print(packet.color)
+            pixels.fill(packet.color)