Added IS31FL3741 DisplayIO Examples

IS31FL3741_DisplayIO/scrolling_text/code.py

@@ -0,0 +1,71 @@
+# SPDX-FileCopyrightText: 2022 Mark Komus
+#
+# SPDX-License-Identifier: MIT
+
+import random
+import time
+import board
+import busio
+import displayio
+import framebufferio
+import is31fl3741
+from adafruit_is31fl3741.led_glasses_map import glassesmatrix_ledmap
+from adafruit_display_text import label
+from adafruit_bitmap_font import bitmap_font
+
+# List of possible messages to display.
+MESSAGES = (
+    "DISPLAYIO AMAZES",
+    "CIRCUITPYTHON RULES",
+    "HELLO WORLD!",
+)
+
+TEXT_COLOR = (220, 210, 0) # Yellow
+
+# Remove any existing displays
+displayio.release_displays()
+
+# Initialize the LED Glasses
+#
+# In this example scale is set to True. When True the logical display is
+# three times the physical display size and scaled down to allow text to
+# look more natural for small display sizes. Hence the display is created
+# as 54x15 when the physical display is 18x5.
+#
+i2c = busio.I2C(board.SCL, board.SDA, frequency=1000000)
+is31 = is31fl3741.IS31FL3741(i2c=i2c)
+is31_framebuffer = is31fl3741.IS31FL3741_FrameBuffer(
+    is31, 54, 15, glassesmatrix_ledmap, scale=True, gamma=True
+)
+display = framebufferio.FramebufferDisplay(is31_framebuffer, auto_refresh=True)
+
+# Dim the display. Full brightness is BRIGHT
+is31_framebuffer.brightness = 0.2
+
+# Load the font to be used - scrolly only has upper case letters
+font = bitmap_font.load_font("scrolly.bdf")
+
+# Set up the displayio elements
+text_area = label.Label(font, text="", color=TEXT_COLOR)
+text_area.y = 8
+group = displayio.Group()
+group.append(text_area)
+display.show(group)
+
+# Continue to scroll messages forever
+while True:
+    # Pick a random message to display
+    text_area.text = random.choice(MESSAGES)
+
+    # Reset the text to start just off the right side
+    x = display.width
+    text_area.x = x
+
+    # Determine the width of the message to scroll
+    width = text_area.bounding_box[2]
+
+    # Scroll the message across the glasses
+    while x != -width:
+        x = x - 1
+        text_area.x = x
+        time.sleep(0.05) # adjust to change scrolling speed

IS31FL3741_DisplayIO/sports_glasses/code.py

@@ -0,0 +1,156 @@
+# SPDX-FileCopyrightText: 2022 Mark Komus
+#
+# SPDX-License-Identifier: MIT
+
+import random
+import time
+import board
+import busio
+import digitalio
+import displayio
+import framebufferio
+import is31fl3741
+from adafruit_is31fl3741.is31fl3741_PixelBuf import IS31FL3741_PixelBuf
+from adafruit_is31fl3741.led_glasses_map import (
+    glassesmatrix_ledmap_no_ring,
+    left_ring_map_no_inner,
+    right_ring_map_no_inner,
+)
+from adafruit_display_text import label
+from adafruit_bitmap_font import bitmap_font
+from adafruit_led_animation.animation.chase import Chase
+from adafruit_debouncer import Debouncer
+
+# List of possible messages to display. Randomly chosen
+MESSAGES = (
+    "GO TEAM GO",
+    "WE ARE NUMBER 1",
+    "I LIKE THE HALFTIME SHOW",
+)
+
+# Colors used for the text and ring lights
+BLUE_TEXT = (0, 20, 255)
+BLUE_RING = (0, 10, 120)
+YELLOW_TEXT = (220, 210, 0)
+YELLOW_RING = (150, 140, 0)
+
+
+def ScrollMessage(text, color, repeat):
+    """Scroll a message across the eyeglasses a set number of times"""
+    text_area.text = text
+    text_area.color = color
+
+    # Start the message just off the side of the glasses
+    x = display.width
+    text_area.x = x
+
+    # Determine the width of the message to scroll
+    width = text_area.bounding_box[2]
+
+    for _ in range(repeat):
+        while x != -width:
+            x = x - 1
+            text_area.x = x
+
+            # Update the switch and if it has been pressed abort scrolling this message
+            switch.update()
+            if switch.value is False:
+                return
+
+            time.sleep(0.025) # adjust to change scrolling speed
+        x = display.width
+
+
+def Score(text, color, ring_color, repeat):
+    """Show a scrolling text message and animated effects on the eye rings.
+    The messages scrolls left to right, then right to left while the eye rings
+    are animated using the adafruit_led_animation library."""
+
+    # Set up a led animation chase sequence for both eyelights
+    chase_left = Chase(left_eye, speed=0.11, color=ring_color, size=8, spacing=4)
+    chase_right = Chase(right_eye, speed=0.07, color=ring_color, size=8, spacing=4)
+
+    text_area.text = text
+    text_area.color = color
+
+    x = display.width
+    text_area.x = x
+
+    width = text_area.bounding_box[2]
+
+    for _ in range(repeat):
+        # Scroll the text left and animate the eyes
+        while x != -width:
+            x = x - 1
+            text_area.x = x
+            chase_left.animate()
+            chase_right.animate()
+            time.sleep(0.008) # adjust to change scrolling speed
+        # Scroll the text right and animate the eyes
+        while x != display.width:
+            x = x + 1
+            text_area.x = x
+            chase_left.animate()
+            chase_right.animate()
+            time.sleep(0.008) # adjust to change scrolling speed
+
+
+# Remove any existing displays
+displayio.release_displays()
+
+# Set up the top button used to trigger a special message when pressed
+switch_pin = digitalio.DigitalInOut(board.SWITCH)
+switch_pin.direction = digitalio.Direction.INPUT
+switch_pin.pull = digitalio.Pull.UP
+switch = Debouncer(switch_pin)
+
+# Initialize the LED Glasses
+#
+# In this example scale is set to True. When True the logical display is
+# three times the physical display size and scaled down to allow text to
+# look more natural for small display sizes. Hence the display is created
+# as 54x15 when the physical display is 18x5.
+#
+i2c = busio.I2C(board.SCL, board.SDA, frequency=1000000)
+is31 = is31fl3741.IS31FL3741(i2c=i2c)
+is31_framebuffer = is31fl3741.IS31FL3741_FrameBuffer(
+    is31, 54, 15, glassesmatrix_ledmap_no_ring, scale=True, gamma=True
+)
+display = framebufferio.FramebufferDisplay(is31_framebuffer, auto_refresh=True)
+
+# Set up the left and right eyelight rings
+# init is set to False as the IS31FL3741_FrameBuffer has already initialized the IS31FL3741 driver
+left_eye = IS31FL3741_PixelBuf(
+    is31, left_ring_map_no_inner, init=False, auto_write=False
+)
+right_eye = IS31FL3741_PixelBuf(
+    is31, right_ring_map_no_inner, init=False, auto_write=False
+)
+
+# Dim the display. Full brightness is BRIGHT
+is31_framebuffer.brightness = 0.2
+
+# Load the font to be used - scrolly only has upper case letters
+font = bitmap_font.load_font("scrolly.bdf")
+
+# Set up the display elements
+text_area = label.Label(font, text="", color=(0, 0, 0))
+text_area.y = 8
+group = displayio.Group()
+group.append(text_area)
+display.show(group)
+
+while True:
+    # Run the debouncer code to get the updated switch value
+    switch.update()
+
+    # If the switch has been pressed interrupt start a special message
+    if switch.value is False:  # False means the switch has been pressed
+        Score("SCORE!", YELLOW_TEXT, BLUE_RING, 2)
+
+    # If the switch is not pressed pick a random message and scroll it
+    left_eye.fill(BLUE_RING)
+    right_eye.fill(BLUE_RING)
+    left_eye.show()
+    right_eye.show()
+    ScrollMessage(random.choice(MESSAGES), YELLOW_TEXT, 2)