Tweaks, fixes, linting and docs

examples/advanced/lcd-demo.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+
+import ST7735
+from PIL import Image, ImageDraw, ImageFont
+from fonts.ttf import RobotoMedium as UserFont
+import logging
+
+logging.basicConfig(
+    format="%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s",
+    level=logging.INFO,
+    datefmt="%Y-%m-%d %H:%M:%S",
+)
+
+logging.info(
+    """lcd.py - Hello, World! example on the 0.96" LCD.
+
+Press Ctrl+C to exit!
+
+"""
+)
+
+# Create LCD class instance.
+disp = ST7735.ST7735(
+    port=0, cs=1, dc=9, backlight=12, rotation=270, spi_speed_hz=10000000
+)
+
+# Initialize display.
+disp.begin()
+
+# Width and height to calculate text position.
+WIDTH = disp.width
+HEIGHT = disp.height
+
+# New canvas to draw on.
+img = Image.new("RGB", (WIDTH, HEIGHT), color=(0, 0, 0))
+draw = ImageDraw.Draw(img)
+
+# Text settings.
+font_size = 25
+font = ImageFont.truetype(UserFont, font_size)
+text_colour = (255, 255, 255)
+back_colour = (0, 170, 170)
+
+message = "Hello, World!"
+size_x, size_y = draw.textsize(message, font)
+
+# Calculate text position
+x = (WIDTH - size_x) / 2
+y = (HEIGHT / 2) - (size_y / 2)
+
+# Draw background rectangle and write text.
+draw.rectangle((0, 0, 160, 80), back_colour)
+draw.text((x, y), message, font=font, fill=text_colour)
+disp.display(img)
+
+# Keep running.
+try:
+    while True:
+        pass
+
+# Turn off backlight on control-c
+except KeyboardInterrupt:
+    disp.set_backlight(0)