Updated example to be more comprehensive

Author: makermelissa

examples/ssd1351_simpletest.py

@@ -1,18 +1,21 @@
 """
-This test will initialize the display using displayio
-and draw a solid red background
+This test will initialize the display using displayio and draw a solid green
+background, a smaller purple rectangle, and some yellow text.
 """
 
 import board
 import displayio
+import terminalio
+from adafruit_display_text import label
 from adafruit_ssd1351 import SSD1351
 
 spi = board.SPI()
 tft_cs = board.D5
 tft_dc = board.D6
 
 displayio.release_displays()
-display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs, reset=board.D9)
+display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs,
+                                 reset=board.D9, baudrate=16000000)
 
 display = SSD1351(display_bus, width=128, height=128)
 
@@ -22,12 +25,26 @@
 
 color_bitmap = displayio.Bitmap(128, 128, 1)
 color_palette = displayio.Palette(1)
-color_palette[0] = 0xFF0000
+color_palette[0] = 0x00FF00 # Bright Green
 
 bg_sprite = displayio.TileGrid(color_bitmap,
                                pixel_shader=color_palette,
                                x=0, y=0)
 splash.append(bg_sprite)
 
+# Draw a smaller inner rectangle
+inner_bitmap = displayio.Bitmap(108, 108, 1)
+inner_palette = displayio.Palette(1)
+inner_palette[0] = 0xAA0088 # Purple
+inner_sprite = displayio.TileGrid(inner_bitmap,
+                                  pixel_shader=inner_palette,
+                                  x=10, y=10)
+splash.append(inner_sprite)
+
+# Draw a label
+text = "Hello World!"
+text_area = label.Label(terminalio.FONT, text=text, color=0xFFFF00, x=30, y=64)
+splash.append(text_area)
+
 while True:
     pass