Merge pull request #16 from dhalbert/fourwire

FourWire support for both 8.x.x and 9.x.x

Author: FoamyGuy

adafruit_il0398.py

@@ -23,7 +23,13 @@
 
 """
 
-import displayio
+# Support both 8.x.x and 9.x.x. Change when 8.x.x is discontinued as a stable release.
+try:
+    from fourwire import FourWire
+    from epaperdisplay import EPaperDisplay
+except ImportError:
+    from displayio import FourWire
+    from displayio import EPaperDisplay
 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_IL0398.git"
@@ -48,10 +54,10 @@
 
 
 # pylint: disable=too-few-public-methods
-class IL0398(displayio.EPaperDisplay):
+class IL0398(EPaperDisplay):
     """IL0398 driver"""
 
-    def __init__(self, bus: displayio.FourWire, **kwargs) -> None:
+    def __init__(self, bus: FourWire, **kwargs) -> None:
         start_sequence = bytearray(_START_SEQUENCE)
 
         width = kwargs["width"]

examples/il0398_4.2_color.py

@@ -14,9 +14,15 @@
 import time
 import board
 import displayio
-import fourwire
 import adafruit_il0398
 
+# Compatibility with both CircuitPython 8.x.x and 9.x.x.
+# Remove after 8.x.x is no longer a supported release.
+try:
+    from fourwire import FourWire
+except ImportError:
+    from displayio import FourWire
+
 displayio.release_displays()
 
 # This pinout works on a Feather M4 and may need to be altered for other boards.
@@ -26,7 +32,7 @@
 epd_reset = board.D5
 epd_busy = board.D6
 
-display_bus = fourwire.FourWire(
+display_bus = FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 time.sleep(1)

examples/il0398_simpletest.py

@@ -12,9 +12,15 @@
 import time
 import board
 import displayio
-import fourwire
 import adafruit_il0398
 
+# Compatibility with both CircuitPython 8.x.x and 9.x.x.
+# Remove after 8.x.x is no longer a supported release.
+try:
+    from fourwire import FourWire
+except ImportError:
+    from displayio import FourWire
+
 displayio.release_displays()
 
 # This pinout works on a Feather M4 and may need to be altered for other boards.
@@ -24,7 +30,7 @@
 epd_reset = board.D5
 epd_busy = board.D6
 
-display_bus = fourwire.FourWire(
+display_bus = FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 time.sleep(1)