Add Copyrighttext and license identifier

Author: HDR

examples/uc8151d_grayscale_test.py

@@ -1,3 +1,14 @@
+# SPDX-FileCopyrightText: 2022 Martin Refseth, written for Adafruit Industries
+#
+# SPDX-License-Identifier: Unlicense
+
+"""Simple test script for 1.54" 152x152 grayscale display.
+
+Supported products:
+  * 1.54" Grayscale Display (GDEW0154T8D)
+  """
+# pylint: disable=no-member
+
 import time
 import board
 import displayio
@@ -6,6 +17,7 @@
 
 displayio.release_displays()
 
+# Pinout intended for use with a Raspberry Pi Pico
 clk = board.GP10
 si = board.GP11
 dc = board.GP8
@@ -27,30 +39,30 @@
 bitmap = displayio.Bitmap(152, 152, 4)
 
 # Draw Black
-for x in range(0,152):
-    for y in range(0,38):
+for x in range(0, 152):
+    for y in range(0, 38):
         bitmap[x, y] = 0
-#Draw Dark Gray
-for x in range(0,152):
-    for y in range(38,76):
+# Draw Dark Gray
+for x in range(0, 152):
+    for y in range(38, 76):
         bitmap[x, y] = 1
-#Draw Light Gray
-for x in range(0,152):
-    for y in range(76,114):
+# Draw Light Gray
+for x in range(0, 152):
+    for y in range(76, 114):
         bitmap[x, y] = 2
-#Draw White
-for x in range(0,152):
-    for y in range(114,152):
+# Draw White
+for x in range(0, 152):
+    for y in range(114, 152):
         bitmap[x, y] = 3
 
 palette = displayio.Palette(4)
-palette[0] = 0x000000 # Black
-palette[1] = 0x404040 # Dark Gray
-palette[2] = 0x808080 # Light Gray
-palette[3] = 0xFFFFFF # White
+palette[0] = 0x000000  # Black
+palette[1] = 0x404040  # Dark Gray
+palette[2] = 0x808080  # Light Gray
+palette[3] = 0xFFFFFF  # White
 
 g = displayio.Group()
 t = displayio.TileGrid(bitmap, pixel_shader=palette)
 g.append(t)
 display.show(g)
-display.refresh()
+display.refresh()