Merge pull request #19 from adafruit/fourwire-i2c

support 8.x.x and 9.x.x display bus differences

adafruit_ssd1325.py

@@ -25,7 +25,20 @@
 
 """
 
-import displayio
+try:
+    from typing import Union
+except ImportError:
+    pass
+
+# 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 busdisplay import BusDisplay
+    from i2cdisplaybus import I2CDisplayBus
+except ImportError:
+    from displayio import FourWire
+    from displayio import Display as BusDisplay
+    from busio import I2C as I2CDisplayBus
 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_SSD1325.git"
@@ -54,7 +67,7 @@
 
 
 # pylint: disable=too-few-public-methods
-class SSD1325(displayio.Display):
+class SSD1325(BusDisplay):
     """
     SSD1325 driver
 
@@ -64,7 +77,7 @@ class SSD1325(displayio.Display):
         (0, 90, 180, 270)
     """
 
-    def __init__(self, bus: displayio.FourWire, **kwargs) -> None:
+    def __init__(self, bus: Union[FourWire, I2CDisplayBus], **kwargs) -> None:
         # Patch the init sequence for 32 pixel high displays.
         init_sequence = bytearray(_INIT_SEQUENCE)
         height = kwargs["height"]

examples/ssd1325_gamma.py

@@ -4,17 +4,22 @@
 import time
 import board
 import displayio
-import fourwire
 import adafruit_ssd1325
 
+# 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
+except ImportError:
+    from displayio import FourWire
+
 displayio.release_displays()
 
 spi = board.SPI()
 oled_cs = board.D5
 oled_dc = board.D6
 oled_reset = board.D9
 
-display_bus = fourwire.FourWire(
+display_bus = FourWire(
     spi, command=oled_dc, chip_select=oled_cs, reset=oled_reset, baudrate=1000000
 )
 time.sleep(1)

examples/ssd1325_simpletest.py

@@ -8,25 +8,36 @@
 
 import board
 import displayio
-import fourwire
 import terminalio
 from adafruit_display_text import label
 import adafruit_ssd1325
 
+# 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
+except ImportError:
+    from displayio import FourWire
+
+# Use for I2C
+# try:
+#     from i2cdisplaybus import I2CDisplayBus
+# except ImportError:
+#     from displayio import I2CDisplayBus
+
 displayio.release_displays()
 
 # Use for SPI
 spi = board.SPI()
 oled_cs = board.D5
 oled_dc = board.D6
-display_bus = fourwire.FourWire(
+display_bus = FourWire(
     spi, command=oled_dc, chip_select=oled_cs, baudrate=1000000, reset=board.D9
 )
 
 # Use for I2C
 # i2c = board.I2C()  # uses board.SCL and board.SDA
 # i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
-# display_bus = displayio.I2CDisplay(i2c, device_address=0x3c)
+# display_bus = I2CDisplayBus(i2c, device_address=0x3c)
 
 WIDTH = 128
 HEIGHT = 64