Merge pull request #2334 from jepler/circuitpython-neopixel-bff

Text scroller example for NeoPixel BFF & QT Py RP2040

Author: TheKitty

CircuitPython_NeoPixel_BFF/code.py

@@ -0,0 +1,37 @@
+# SPDX-FileCopyrightText: Copyright (c) 2022 Jeff Epler for Adafruit Industries
+#
+# SPDX-License-Identifier: Unlicense
+import time
+import board
+import neopixel
+from adafruit_display_text.bitmap_label import Label
+from adafruit_bitmap_font import bitmap_font
+from displayio import Bitmap
+from rainbowio import colorwheel
+
+font = bitmap_font.load_font("tom-thumb.pcf", Bitmap)
+label = Label(text="Hello World!!  Adafruit QT Py RP2040 + NeoPixel BFF  ", font=font)
+bitmap = label.bitmap
+
+pixels = neopixel.NeoPixel(board.A2, 5*5, brightness=.07, auto_write=False)
+pixels.fill(0)
+pixels.show()
+colors = [0, 0]
+hue = 0
+while True:
+    for i in range(bitmap.width):
+        # Use a rainbow of colors, shifting each column of pixels
+        hue = hue + 7
+        if hue >= 256:
+            hue = hue - 256
+
+        colors[1] = colorwheel(hue)
+        # Scoot the old text left by 1 pixel
+        pixels[0:20] = pixels[5:25]
+
+        # Draw in the next line of text
+        for y in range(5):
+            # Select black or color depending on the bitmap pixel
+            pixels[20+y] = colors[bitmap[i,y]]
+        pixels.show()
+        time.sleep(.1)