Tufty2040: Solarized example.

micropython/examples/tufty2040/tufty2040_solarized.py

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+from picographics import PicoGraphics, DISPLAY_TUFTY_2040, PEN_P4
+from pimoroni import Button
+import math
+import time
+
+"""
+Tufty2040: Solarized
+
+Sets up Tufty 2040 in 4-bit colour mode and fills the
+16-bit palette with some nice Solarized colours.
+
+See: https://ethanschoonover.com/solarized/
+"""
+
+
+# Background & Content Tones
+BASE_03 = 0
+BASE_02 = 1
+BASE_01 = 2
+BASE_00 = 3
+BASE_0 = 4
+BASE_1 = 5
+BASE_2 = 6
+BASE_3 = 7
+
+# Accent Colours
+YELLOW = 8
+ORANGE = 9
+RED = 10
+MAGENTA = 11
+VIOLET = 12
+BLUE = 13
+CYAN = 14
+GREEN = 15
+
+# Friendly names for light/dark backgrounds
+BG_DARK = BASE_03
+BG_LIGHT = BASE_2
+
+
+def bargraph(ox, oy, w, h, value, colors, pips=32):
+    step = int(pips / len(colors))
+    filled = int(value * pips)
+    pip_width = int(w / pips)
+    for i in range(pips):
+        p = colors[int(i / step)]
+        lcd.set_pen(p)
+        x = i * pip_width
+        if i > filled:
+            lcd.rectangle(ox + x, oy + h - 1, pip_width - 2, 1)
+        else:
+            lcd.rectangle(ox + x, oy, pip_width - 2, h)
+
+
+lcd = PicoGraphics(DISPLAY_TUFTY_2040, pen_type=PEN_P4)
+
+lcd.set_backlight(0.8)
+lcd.set_font("bitmap8")
+
+button_up = Button(22, invert=False)
+button_down = Button(6, invert=False)
+
+
+# Prime the palette with Solarized 16-colours!
+lcd.set_palette([
+    (0x00, 0x2b, 0x36),  # Base 03
+    (0x07, 0x36, 0x42),  # Base 02
+    (0x58, 0x6e, 0x75),  # base 01
+    (0x65, 0x7b, 0x83),  # Base 00
+    (0x83, 0x94, 0x96),  # Base 0
+    (0x93, 0xa1, 0xa1),  # Base 1
+    (0xee, 0xe8, 0xd5),  # Base 2
+    (0xfd, 0xf6, 0xe3),  # Base 3
+    (0xb5, 0x89, 0x00),  # Yellow
+    (0xcb, 0x4b, 0x16),  # Orange
+    (0xdc, 0x32, 0x2f),  # Red
+    (0xd3, 0x36, 0x82),  # Magenta
+    (0x6c, 0x71, 0xc4),  # Violet
+    (0x26, 0x8b, 0xd2),  # Blue
+    (0x2a, 0xa1, 0x98),  # Cyan
+    (0x85, 0x99, 0x00),  # Green
+])
+
+dark_mode = True
+
+
+while True:
+    if button_down.is_pressed:
+        dark_mode = True
+    if button_up.is_pressed:
+        dark_mode = False
+
+    lcd.set_pen(BG_DARK if dark_mode else BG_LIGHT)
+    lcd.clear()
+
+    texts = [
+        "Vær så god",
+        "Testing. Testing. 123.",
+        "Helló Világ",
+        "Comment ça va",
+        "meine Straße hinauf",
+        "It's a spicy 25°C",
+        "What do you think?",
+        "éphéméréité"
+    ]
+
+    for i, pen in enumerate([YELLOW, ORANGE, RED, MAGENTA, VIOLET, BLUE, CYAN, GREEN]):
+        lcd.set_pen(pen)
+        lcd.text(texts[i], 10, i * 22 + 10, 320)
+
+    v1 = (math.sin(time.ticks_ms() / 400.0 / math.pi) + 1.0) / 2.0
+    v2 = (math.sin(time.ticks_ms() / 650.0 / math.pi) + 1.0) / 2.0
+    v3 = (math.sin(time.ticks_ms() / 900.0 / math.pi) + 1.0) / 2.0
+
+    bargraph(10, 188, 300, 8, v1, [VIOLET, BLUE, CYAN, GREEN])
+    bargraph(10, 200, 300, 8, v2, [GREEN, YELLOW, RED, MAGENTA])
+    bargraph(10, 212, 300, 8, v3, [CYAN, GREEN, YELLOW, ORANGE])
+
+    lcd.update()