Added an example of how to turn Badger 2040 off from code

badger2040/displayio_example.py

@@ -4,6 +4,11 @@
 import vectorio
 from adafruit_display_text import label
 
+"""
+An example of how to show text on the Badger 2040's
+screen using the built-in DisplayIO object.
+"""
+
 display = board.DISPLAY
 
 # Set text, font, and color

badger2040/displayio_example_with_sleep.py

@@ -0,0 +1,69 @@
+import time
+import board
+import terminalio
+import displayio
+import digitalio
+import vectorio
+from adafruit_display_text import label
+
+"""
+An extension to the DisplayIO example that includes the activity LED
+as well as puts the board to sleep once the screen has been updated.
+"""
+
+display = board.DISPLAY
+enable = board.ENABLE_DIO
+
+# Set up and turn on the activity LED
+act = digitalio.DigitalInOut(board.USER_LED)
+act.direction = digitalio.Direction.OUTPUT
+act.value = True
+
+# Set text, font, and color
+title = "HELLO WORLD"
+subtitle = "From CircuitPython"
+font = terminalio.FONT
+color = 0x000000
+
+# Set the palette for the background color
+palette = displayio.Palette(1)
+palette[0] = 0xFFFFFF
+
+# Add a background rectangle
+rectangle = vectorio.Rectangle(pixel_shader=palette, width=display.width + 1, height=display.height, x=0, y=0)
+
+# Create the title and subtitle labels
+title_label = label.Label(font, text=title, color=color, scale=4)
+subtitle_label = label.Label(font, text=subtitle, color=color, scale=2)
+
+# Set the label locations
+title_label.x = 20
+title_label.y = 45
+
+subtitle_label.x = 40
+subtitle_label.y = 90
+
+# Create the display group and append objects to it
+group = displayio.Group()
+group.append(rectangle)
+group.append(title_label)
+group.append(subtitle_label)
+
+# Show the group and refresh the screen to see the result
+display.show(group)
+display.refresh()
+
+# Wait a few seconds for the screen to refresh
+time.sleep(3)
+
+# Turn the board off
+enable.value = False
+
+# Loop forever so you can enjoy your message when on USB power
+# When on battery this will never be reached, as indicated
+# by the activity LED turning off rather than flashing
+while True:
+    act.value = False
+    time.sleep(0.25)
+    act.value = True
+    time.sleep(0.25)