Merge pull request #13 from makermelissa/master

Add PiTFT example

Author: tannewt

examples/hx8357_pitft_simpletest.py

@@ -0,0 +1,49 @@
+"""
+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 terminalio
+import displayio
+from adafruit_display_text import label
+from adafruit_hx8357 import HX8357
+
+# Release any resources currently in use for the displays
+displayio.release_displays()
+
+spi = board.SPI()
+tft_cs = board.CE0
+tft_dc = board.D25
+
+display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
+
+display = HX8357(display_bus, width=480, height=320)
+
+# Make the display context
+splash = displayio.Group(max_size=10)
+display.show(splash)
+
+color_bitmap = displayio.Bitmap(display.width, display.height, 1)
+color_palette = displayio.Palette(1)
+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(display.width - 40, display.height - 40, 1)
+inner_palette = displayio.Palette(1)
+inner_palette[0] = 0xAA0088  # Purple
+inner_sprite = displayio.TileGrid(inner_bitmap, pixel_shader=inner_palette, x=20, y=20)
+splash.append(inner_sprite)
+
+# Draw a label
+text_group = displayio.Group(max_size=10, scale=3, x=137, y=160)
+text = "Hello World!"
+text_area = label.Label(terminalio.FONT, text=text, color=0xFFFF00)
+text_group.append(text_area)  # Subgroup for text scaling
+splash.append(text_group)
+
+while True:
+    pass