Merge pull request #94 from adafruit/UC8197

add UC8197 driver

adafruit_epd/jd79661.py

@@ -0,0 +1,467 @@
+# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`adafruit_epd.jd79661` - Adafruit JD79661 - quad-color ePaper display driver
+====================================================================================
+CircuitPython driver for Adafruit JD79661 quad-color display breakouts
+* Author(s): Liz Clark
+"""
+
+import time
+
+import adafruit_framebuf
+from micropython import const
+
+from adafruit_epd.epd import Adafruit_EPD
+
+try:
+    """Needed for type annotations"""
+    import typing
+
+    from busio import SPI
+    from circuitpython_typing.pil import Image
+    from digitalio import DigitalInOut
+    from typing_extensions import Literal
+
+except ImportError:
+    pass
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git"
+
+# Command constants
+_JD79661_PANEL_SETTING = const(0x00)
+_JD79661_POWER_SETTING = const(0x01)
+_JD79661_POWER_OFF = const(0x02)
+_JD79661_POWER_ON = const(0x04)
+_JD79661_BOOSTER_SOFTSTART = const(0x06)
+_JD79661_DEEP_SLEEP = const(0x07)
+_JD79661_DATA_START_XMIT = const(0x10)
+_JD79661_DISPLAY_REFRESH = const(0x12)
+_JD79661_PLL_CONTROL = const(0x30)
+_JD79661_CDI = const(0x50)
+_JD79661_RESOLUTION = const(0x61)
+
+# Color constants for internal use (2-bit values)
+_JD79661_BLACK = const(0b00)
+_JD79661_WHITE = const(0b01)
+_JD79661_YELLOW = const(0b10)
+_JD79661_RED = const(0b11)
+
+# Other command constants from init sequence
+_JD79661_POFS = const(0x03)
+_JD79661_TCON = const(0x60)
+_JD79661_CMD_E7 = const(0xE7)
+_JD79661_CMD_E3 = const(0xE3)
+_JD79661_CMD_B4 = const(0xB4)
+_JD79661_CMD_B5 = const(0xB5)
+_JD79661_CMD_E9 = const(0xE9)
+_JD79661_CMD_4D = const(0x4D)
+
+
+class Adafruit_JD79661(Adafruit_EPD):
+    """Driver for the JD79661 quad-color ePaper display breakouts"""
+
+    BLACK = const(0)  # 0b00 in the display buffer
+    WHITE = const(1)  # 0b01 in the display buffer
+    YELLOW = const(2)  # 0b10 in the display buffer
+    RED = const(3)  # 0b11 in the display buffer
+
+    def __init__(
+        self,
+        width: int,
+        height: int,
+        spi: SPI,
+        *,
+        cs_pin: DigitalInOut,
+        dc_pin: DigitalInOut,
+        sramcs_pin: DigitalInOut,
+        rst_pin: DigitalInOut,
+        busy_pin: DigitalInOut,
+    ) -> None:
+        """Initialize the quad-color display driver.
+
+        Note: This driver uses a different buffer architecture than the parent class.
+        Instead of separate black and color buffers, it uses a single buffer with
+        2 bits per pixel to represent 4 colors.
+        """
+        super().__init__(width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin)
+
+        stride = width
+        if stride % 8 != 0:
+            stride += 8 - stride % 8
+
+        self._buffer1_size = int(stride * height / 4)
+        self._buffer2_size = 0  # No second buffer for this display
+
+        if sramcs_pin:
+            self._buffer1 = self.sram.get_view(0)
+            self._buffer2 = self._buffer1
+        else:
+            self._buffer1 = bytearray(self._buffer1_size)
+            self._buffer2 = self._buffer1
+
+        self._framebuf1 = adafruit_framebuf.FrameBuffer(
+            self._buffer1,
+            width,
+            height,
+            stride=stride,
+            buf_format=adafruit_framebuf.MHMSB,
+        )
+        self._framebuf2 = self._framebuf1  # Same framebuffer for compatibility
+
+        # Set single byte transactions
+        self._single_byte_tx = True
+
+        # Set up buffer references for parent class compatibility
+        # Both point to the same buffer since we don't have separate color planes
+        self.set_black_buffer(0, False)
+        self.set_color_buffer(0, False)
+
+        # Initialize with default fill
+        self.fill(Adafruit_JD79661.WHITE)
+
+    def begin(self, reset: bool = True) -> None:
+        """Begin communication with the display and set basic settings"""
+        if reset:
+            self.hardware_reset()
+        time.sleep(0.1)
+        self.power_down()
+
+    def busy_wait(self) -> None:
+        """Wait for display to be done with current task, either by polling the
+        busy pin, or pausing. Note: JD79661 busy is HIGH when busy"""
+        if self._busy:
+            while not self._busy.value:  # Wait for busy HIGH
+                time.sleep(0.01)
+        else:
+            time.sleep(0.5)
+
+    def power_up(self) -> None:
+        """Power up the display in preparation for writing RAM and updating"""
+        self.hardware_reset()
+        self.busy_wait()
+
+        # Send initialization sequence
+        time.sleep(0.01)  # Wait 10ms
+
+        self.command(_JD79661_CMD_4D, bytearray([0x78]))
+        self.command(
+            _JD79661_PANEL_SETTING, bytearray([0x8F, 0x29])
+        )  # PSR, Display resolution is 128x250
+        self.command(_JD79661_POWER_SETTING, bytearray([0x07, 0x00]))  # PWR
+        self.command(_JD79661_POFS, bytearray([0x10, 0x54, 0x44]))  # POFS
+        self.command(
+            _JD79661_BOOSTER_SOFTSTART, bytearray([0x05, 0x00, 0x3F, 0x0A, 0x25, 0x12, 0x1A])
+        )
+        self.command(_JD79661_CDI, bytearray([0x37]))  # CDI
+        self.command(_JD79661_TCON, bytearray([0x02, 0x02]))  # TCON
+        self.command(_JD79661_RESOLUTION, bytearray([0, 128, 0, 250]))  # TRES
+        self.command(_JD79661_CMD_E7, bytearray([0x1C]))
+        self.command(_JD79661_CMD_E3, bytearray([0x22]))
+        self.command(_JD79661_CMD_B4, bytearray([0xD0]))
+        self.command(_JD79661_CMD_B5, bytearray([0x03]))
+        self.command(_JD79661_CMD_E9, bytearray([0x01]))
+        self.command(_JD79661_PLL_CONTROL, bytearray([0x08]))
+        self.command(_JD79661_POWER_ON)
+
+        self.busy_wait()
+
+    def power_down(self) -> None:
+        """Power down the display - required when not actively displaying!"""
+        if self._rst:
+            self.command(_JD79661_POWER_OFF, bytearray([0x00]))
+            self.busy_wait()
+            self.command(_JD79661_DEEP_SLEEP, bytearray([0xA5]))
+            time.sleep(0.1)
+
+    def update(self) -> None:
+        """Update the display from internal memory"""
+        self.command(_JD79661_DISPLAY_REFRESH, bytearray([0x00]))
+        self.busy_wait()
+        if not self._busy:
+            time.sleep(1)  # Wait 1 second if no busy pin
+
+    def write_ram(self, index: Literal[0, 1]) -> int:
+        """Send the one byte command for starting the RAM write process."""
+        # JD79661 uses same command for all data
+        return self.command(_JD79661_DATA_START_XMIT, end=False)
+
+    def set_ram_address(self, x: int, y: int) -> None:
+        """Set the RAM address location."""
+        # Not used for JD79661
+        pass
+
+    def fill(self, color: int) -> None:
+        """Fill the entire display with the specified color.
+
+        Args:
+            color: Color value (BLACK, WHITE, YELLOW, or RED)
+
+        Raises:
+            ValueError: If an invalid color is specified
+        """
+        # Map colors to fill patterns (4 pixels per byte)
+        color_map = {
+            Adafruit_JD79661.BLACK: 0x00,  # 0b00000000 - all pixels black
+            Adafruit_JD79661.WHITE: 0x55,  # 0b01010101 - all pixels white
+            Adafruit_JD79661.YELLOW: 0xAA,  # 0b10101010 - all pixels yellow
+            Adafruit_JD79661.RED: 0xFF,  # 0b11111111 - all pixels red
+        }
+
+        if color not in color_map:
+            raise ValueError(
+                f"Invalid color: {color}. Use BLACK (0), WHITE (1), YELLOW (2), or RED (3)."
+            )
+
+        fill_byte = color_map[color]
+
+        if self.sram:
+            self.sram.erase(0x00, self._buffer1_size, fill_byte)
+        else:
+            for i in range(self._buffer1_size):
+                self._buffer1[i] = fill_byte
+
+    def pixel(self, x: int, y: int, color: int) -> None:
+        """Draw a single pixel in the display buffer.
+
+        Args:
+            x: X coordinate
+            y: Y coordinate
+            color: Color value (BLACK, WHITE, YELLOW, or RED)
+        """
+        if (x < 0) or (x >= self.width) or (y < 0) or (y >= self.height):
+            return
+
+        # Handle rotation
+        if self.rotation == 1:
+            x, y = y, x
+            x = self._width - x - 1
+            if self._width % 8 != 0:
+                x -= self._width % 8
+        elif self.rotation == 2:
+            x = self._width - x - 1
+            y = self._height - y - 1
+            if self._width % 8 != 0:
+                x += self._width % 8
+        elif self.rotation == 3:
+            x, y = y, x
+            y = self._height - y - 1
+
+        # Calculate stride (width adjusted to be divisible by 8)
+        stride = self._width
+        if stride % 8 != 0:
+            stride += 8 - stride % 8
+
+        # Map color constants to 2-bit values
+        color_map = {
+            Adafruit_JD79661.BLACK: _JD79661_BLACK,
+            Adafruit_JD79661.WHITE: _JD79661_WHITE,
+            Adafruit_JD79661.YELLOW: _JD79661_YELLOW,
+            Adafruit_JD79661.RED: _JD79661_RED,
+        }
+
+        if color not in color_map:
+            # Default to white for invalid colors
+            pixel_color = _JD79661_WHITE
+        else:
+            pixel_color = color_map[color]
+
+        # Calculate byte address (4 pixels per byte)
+        addr = (x + y * stride) // 4
+
+        # Calculate bit offset within byte (2 bits per pixel)
+        # Pixels are packed left-to-right, MSB first
+        bit_offset = (3 - (x % 4)) * 2
+
+        # Create masks
+        byte_mask = 0x3 << bit_offset
+        byte_value = (pixel_color & 0x3) << bit_offset
+
+        # Read, modify, write
+        if self.sram:
+            current = self.sram.read8(addr)
+            current &= ~byte_mask
+            current |= byte_value
+            self.sram.write8(addr, current)
+        else:
+            self._buffer1[addr] &= ~byte_mask
+            self._buffer1[addr] |= byte_value
+
+    def rect(self, x: int, y: int, width: int, height: int, color: int) -> None:
+        """Draw a rectangle.
+
+        Overridden to use the quad-color pixel method.
+        """
+        for i in range(x, x + width):
+            self.pixel(i, y, color)
+            self.pixel(i, y + height - 1, color)
+        for j in range(y + 1, y + height - 1):
+            self.pixel(x, j, color)
+            self.pixel(x + width - 1, j, color)
+
+    def fill_rect(self, x: int, y: int, width: int, height: int, color: int) -> None:
+        """Fill a rectangle with the passed color.
+
+        Overridden to use the quad-color pixel method.
+        """
+        for i in range(x, x + width):
+            for j in range(y, y + height):
+                self.pixel(i, j, color)
+
+    def line(self, x_0: int, y_0: int, x_1: int, y_1: int, color: int) -> None:
+        """Draw a line from (x_0, y_0) to (x_1, y_1) in passed color.
+
+        Overridden to use the quad-color pixel method.
+        """
+        dx = abs(x_1 - x_0)
+        dy = abs(y_1 - y_0)
+        sx = 1 if x_0 < x_1 else -1
+        sy = 1 if y_0 < y_1 else -1
+        err = dx - dy
+
+        while True:
+            self.pixel(x_0, y_0, color)
+            if x_0 == x_1 and y_0 == y_1:
+                break
+            e2 = 2 * err
+            if e2 > -dy:
+                err -= dy
+                x_0 += sx
+            if e2 < dx:
+                err += dx
+                y_0 += sy
+
+    def text(
+        self,
+        string: str,
+        x: int,
+        y: int,
+        color: int,
+        *,
+        font_name: str = "font5x8.bin",
+        size: int = 1,
+    ) -> None:
+        """Write text string at location (x, y) in given color, using font file."""
+        color_map = {
+            Adafruit_JD79661.BLACK: _JD79661_BLACK,
+            Adafruit_JD79661.WHITE: _JD79661_WHITE,
+            Adafruit_JD79661.YELLOW: _JD79661_YELLOW,
+            Adafruit_JD79661.RED: _JD79661_RED,
+        }
+        if color not in color_map:
+            raise ValueError(
+                f"Invalid color: {color}. Use BLACK (0), WHITE (1), YELLOW (2), or RED (3)."
+            )
+
+        text_width = len(string) * 6 * size
+        text_height = 8 * size
+
+        text_width = min(text_width, self.width - x)
+        text_height = min(text_height, self.height - y)
+
+        if text_width <= 0 or text_height <= 0:
+            return
+
+        temp_buf_width = ((text_width + 7) // 8) * 8
+        temp_buf = bytearray((temp_buf_width * text_height) // 8)
+
+        temp_fb = adafruit_framebuf.FrameBuffer(
+            temp_buf, temp_buf_width, text_height, buf_format=adafruit_framebuf.MHMSB
+        )
+
+        temp_fb.fill(0)
+        temp_fb.text(string, 0, 0, 1, font_name=font_name, size=size)
+
+        for j in range(text_height):
+            for i in range(text_width):
+                byte_index = (j * temp_buf_width + i) // 8
+                bit_index = 7 - ((j * temp_buf_width + i) % 8)
+
+                if byte_index < len(temp_buf):
+                    if (temp_buf[byte_index] >> bit_index) & 1:
+                        self.pixel(x + i, y + j, color)
+
+    def image(self, image: Image) -> None:
+        """Set buffer to value of Python Imaging Library image.  The image should
+        be in RGB mode and a size equal to the display size.
+        """
+        imwidth, imheight = image.size
+        if imwidth != self.width or imheight != self.height:
+            raise ValueError(
+                f"Image must be same dimensions as display ({self.width}x{self.height})."
+            )
+        if self.sram:
+            raise RuntimeError("PIL image is not for use with SRAM assist")
+
+        # Grab all the pixels from the image, faster than getpixel.
+        pix = image.load()
+
+        # Clear out any display buffers (assuming white background)
+        self.fill(Adafruit_JD79661.WHITE)
+
+        if image.mode == "RGB":  # RGB Mode
+            for y in range(image.size[1]):
+                for x in range(image.size[0]):
+                    pixel = pix[x, y]
+                    r, g, b = pixel[0], pixel[1], pixel[2]
+
+                    # Calculate brightness/luminance for better color detection
+                    brightness = (r + g + b) / 3
+
+                    # Color detection logic with thresholds
+                    if brightness >= 200:  # Light colors -> White
+                        # White is typically the default, so we might not need to set it
+                        # self.pixel(x, y, Adafruit_EPD.WHITE)
+                        pass
+                    elif r >= 128 and g >= 128 and b < 80:  # Yellow detection
+                        # High red and green, low blue
+                        self.pixel(x, y, Adafruit_JD79661.YELLOW)
+                    elif r >= 128 and g < 80 and b < 80:  # Red detection
+                        # High red, low green and blue
+                        self.pixel(x, y, Adafruit_JD79661.RED)
+                    elif brightness < 80:  # Dark colors -> Black
+                        # All RGB values are low
+                        self.pixel(x, y, Adafruit_JD79661.BLACK)
+                    elif r > g and r > b and r >= 100:
+                        # Red-dominant
+                        self.pixel(x, y, Adafruit_JD79661.RED)
+                    elif r >= 100 and g >= 100:
+                        # Both red and green high -> Yellow
+                        self.pixel(x, y, Adafruit_JD79661.YELLOW)
+                    elif brightness < 128:
+                        # Medium-dark -> Black
+                        self.pixel(x, y, Adafruit_JD79661.BLACK)
+                        # else: remains white (default)
+
+        elif image.mode == "L":  # Grayscale Mode
+            for y in range(image.size[1]):
+                for x in range(image.size[0]):
+                    pixel = pix[x, y]
+
+                    # Map grayscale to 4 levels
+                    if pixel < 64:
+                        self.pixel(x, y, Adafruit_JD79661.BLACK)
+                    elif pixel < 128:
+                        self.pixel(x, y, Adafruit_JD79661.RED)  # Or could use YELLOW
+                    elif pixel < 192:
+                        self.pixel(x, y, Adafruit_JD79661.YELLOW)
+                    # else: pixel >= 192 -> WHITE (default)
+
+        elif image.mode == "P":  # Palette Mode (optional, for indexed color)
+            # Convert to RGB first for easier processing
+            rgb_image = image.convert("RGB")
+            self.image(rgb_image)  # Recursive call with RGB image
+
+        else:
+            raise ValueError("Image must be in mode RGB, L, or P.")
+
+    def set_black_buffer(self, index: Literal[0, 1], inverted: bool) -> None:
+        """Set the index for the black buffer data."""
+        super().set_black_buffer(index, inverted)
+
+    def set_color_buffer(self, index: Literal[0, 1], inverted: bool) -> None:
+        """Set the index for the color buffer data."""
+        super().set_color_buffer(index, inverted)

adafruit_epd/ssd1680.py

@@ -153,7 +153,7 @@ class Adafruit_SSD1680(Adafruit_EPD):
         # driver output control
         self.command(
             _SSD1680_DRIVER_CONTROL,
-            bytearray([self._height - 1, (self._height - 1) >> 8, 0x00]),
+            bytearray([(self._height - 1) & 0xFF, (self._height - 1) >> 8, 0x00]),
         )
         # data entry mode
         self.command(_SSD1680_DATA_MODE, bytearray([0x03]))
@@ -163,20 +163,23 @@ class Adafruit_SSD1680(Adafruit_EPD):
         self.command(_SSD1680_GATE_VOLTAGE, bytearray([0x17]))
         self.command(_SSD1680_SOURCE_VOLTAGE, bytearray([0x41, 0x00, 0x32]))
 
+        height = self._width
+        if height % 8 != 0:
+            height += 8 - (height % 8)
         # Set ram X start/end postion
-        self.command(_SSD1680_SET_RAMXPOS, bytearray([0x01, 0x10]))
+        self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (height // 8) - 1]))
         # Set ram Y start/end postion
         self.command(
             _SSD1680_SET_RAMYPOS,
-            bytearray([0, 0, self._height - 1, (self._height - 1) >> 8]),
+            bytearray([0x00, 0x00, (self._height - 1) & 0xFF, (self._height - 1) >> 8]),
         )
         # Set border waveform
         self.command(_SSD1680_WRITE_BORDER, bytearray([0x05]))
 
         # Set ram X count
-        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x01]))
+        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x00]))
         # Set ram Y count
-        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([self._height - 1, 0]))
+        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([0x00, 0x00]))
         self.busy_wait()
 
     def power_down(self) -> None:
@@ -206,9 +209,9 @@ class Adafruit_SSD1680(Adafruit_EPD):
         """Set the RAM address location, not used on this chipset but required by
         the superclass"""
         # Set RAM X address counter
-        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([x + 1]))
+        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0]))
         # Set RAM Y address counter
-        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([y, y >> 8]))
+        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([0, 0]))
 
 
 class Adafruit_SSD1680Z(Adafruit_SSD1680):
@@ -239,7 +242,7 @@ class Adafruit_SSD1680Z(Adafruit_SSD1680):
 
         self.command(
             _SSD1680_DRIVER_CONTROL,
-            bytearray([self._height, (self._height) >> 8, 0x00]),
+            bytearray([self._height & 0xFF, (self._height) >> 8, 0x00]),
         )
         self.command(_SSD1680_DATA_MODE, bytearray([0x03]))
 
@@ -248,19 +251,19 @@ class Adafruit_SSD1680Z(Adafruit_SSD1680):
         self.command(_SSD1680_GATE_VOLTAGE, bytearray([0x17]))
         self.command(_SSD1680_SOURCE_VOLTAGE, bytearray([0x41, 0x00, 0x32]))
 
-        self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (self._width // 8)]))
+        self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (self._width // 8) - 1]))
         self.command(
             _SSD1680_SET_RAMYPOS,
-            bytearray([0x00, 0x00, self._height, (self._height) >> 8]),
+            bytearray([0x00, 0x00, (self._height - 1) & 0xFF, (self._height - 1) >> 8]),
         )
 
         # Set border waveform
         self.command(_SSD1680_WRITE_BORDER, bytearray([0x05]))
 
         # Set ram X count
-        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x01]))
+        self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x00]))
         # Set ram Y count
-        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([self._height, 0]))
+        self.command(_SSD1680_SET_RAMYCOUNT, bytearray([0x00, 0x00]))
         self.busy_wait()
 
     def update(self):

adafruit_epd/ssd1681.py

@@ -143,7 +143,7 @@ class Adafruit_SSD1681(Adafruit_EPD):
         # driver output control
         self.command(
             _SSD1681_DRIVER_CONTROL,
-            bytearray([self._width - 1, (self._width - 1) >> 8, 0x00]),
+            bytearray([(self._width - 1) & 0xFF, (self._width - 1) >> 8, 0x00]),
         )
         # data entry mode
         self.command(_SSD1681_DATA_MODE, bytearray([0x03]))
@@ -152,7 +152,7 @@ class Adafruit_SSD1681(Adafruit_EPD):
         # Set ram Y start/end postion
         self.command(
             _SSD1681_SET_RAMYPOS,
-            bytearray([0, 0, self._height - 1, (self._height - 1) >> 8]),
+            bytearray([0, 0, (self._height - 1) & 0xFF, (self._height - 1) >> 8]),
         )
         # Set border waveform
         self.command(_SSD1681_WRITE_BORDER, bytearray([0x05]))
@@ -190,4 +190,4 @@ class Adafruit_SSD1681(Adafruit_EPD):
         # Set RAM X address counter
         self.command(_SSD1681_SET_RAMXCOUNT, bytearray([x]))
         # Set RAM Y address counter
-        self.command(_SSD1681_SET_RAMYCOUNT, bytearray([y, y >> 8]))
+        self.command(_SSD1681_SET_RAMYCOUNT, bytearray([y & 0xFF, y >> 8]))

adafruit_epd/ssd1683.py

@@ -0,0 +1,262 @@
+# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`adafruit_epd.ssd1683` - Adafruit SSD1683 - ePaper display driver
+====================================================================================
+CircuitPython driver for Adafruit SSD1683 display breakouts
+* Author(s): Liz Clark
+"""
+
+import time
+
+import adafruit_framebuf
+from micropython import const
+
+from adafruit_epd.epd import Adafruit_EPD
+
+try:
+    """Needed for type annotations"""
+    import typing
+
+    from busio import SPI
+    from digitalio import DigitalInOut
+    from typing_extensions import Literal
+
+except ImportError:
+    pass
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git"
+
+# Command constants
+_SSD1683_DRIVER_CONTROL = const(0x01)
+_SSD1683_GATE_VOLTAGE = const(0x03)
+_SSD1683_SOURCE_VOLTAGE = const(0x04)
+_SSD1683_PROGOTP_INITIAL = const(0x08)
+_SSD1683_PROGREG_INITIAL = const(0x09)
+_SSD1683_READREG_INITIAL = const(0x0A)
+_SSD1683_BOOST_SOFTSTART = const(0x0C)
+_SSD1683_DEEP_SLEEP = const(0x10)
+_SSD1683_DATA_MODE = const(0x11)
+_SSD1683_SW_RESET = const(0x12)
+_SSD1683_HV_READY = const(0x14)
+_SSD1683_VCI_DETECT = const(0x15)
+_SSD1683_PROGRAM_WSOTP = const(0x16)
+_SSD1683_PROGRAM_AUTO = const(0x17)
+_SSD1683_TEMP_CONTROL = const(0x18)
+_SSD1683_TEMP_WRITE = const(0x1A)
+_SSD1683_TEMP_READ = const(0x1B)
+_SSD1683_TEMP_CONTROLEXT = const(0x1C)
+_SSD1683_MASTER_ACTIVATE = const(0x20)
+_SSD1683_DISP_CTRL1 = const(0x21)
+_SSD1683_DISP_CTRL2 = const(0x22)
+_SSD1683_WRITE_RAM1 = const(0x24)
+_SSD1683_WRITE_RAM2 = const(0x26)
+_SSD1683_READ_RAM1 = const(0x27)
+_SSD1683_SENSE_VCOM = const(0x28)
+_SSD1683_SENSEDUR_VCOM = const(0x29)
+_SSD1683_PROGOTP_VCOM = const(0x2A)
+_SSD1683_WRITE_VCOM = const(0x2C)
+_SSD1683_READ_OTP = const(0x2D)
+_SSD1683_READ_USERID = const(0x2E)
+_SSD1683_READ_STATUS = const(0x2F)
+_SSD1683_WRITE_LUT = const(0x32)
+_SSD1683_WRITE_BORDER = const(0x3C)
+_SSD1683_END_OPTION = const(0x3F)
+_SSD1683_SET_RAMXPOS = const(0x44)
+_SSD1683_SET_RAMYPOS = const(0x45)
+_SSD1683_SET_RAMXCOUNT = const(0x4E)
+_SSD1683_SET_RAMYCOUNT = const(0x4F)
+
+# Other constants
+_EPD_RAM_BW = const(0x10)
+_EPD_RAM_RED = const(0x13)
+_BUSY_WAIT = const(500)
+
+
+class Adafruit_SSD1683(Adafruit_EPD):
+    """driver class for Adafruit SSD1683 ePaper display breakouts"""
+
+    def __init__(
+        self,
+        width: int,
+        height: int,
+        spi: SPI,
+        *,
+        cs_pin: DigitalInOut,
+        dc_pin: DigitalInOut,
+        sramcs_pin: DigitalInOut,
+        rst_pin: DigitalInOut,
+        busy_pin: DigitalInOut,
+    ) -> None:
+        super().__init__(width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin)
+
+        stride = width
+        if stride % 8 != 0:
+            stride += 8 - stride % 8
+
+        self._buffer1_size = int(stride * height / 8)
+        self._buffer2_size = self._buffer1_size
+
+        if sramcs_pin:
+            self._buffer1 = self.sram.get_view(0)
+            self._buffer2 = self.sram.get_view(self._buffer1_size)
+        else:
+            self._buffer1 = bytearray(self._buffer1_size)
+            self._buffer2 = bytearray(self._buffer2_size)
+
+        self._framebuf1 = adafruit_framebuf.FrameBuffer(
+            self._buffer1, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf2 = adafruit_framebuf.FrameBuffer(
+            self._buffer2, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self.set_black_buffer(0, True)
+        self.set_color_buffer(1, False)
+
+        # Set single byte transactions flag
+        self._single_byte_tx = True
+
+        # Set the display update value
+        self._display_update_val = 0xF7
+
+        # Default initialization sequence (tri-color mode)
+        self._default_init_code = bytes(
+            [
+                _SSD1683_SW_RESET,
+                0,  # Software reset
+                0xFF,
+                50,  # Wait for busy (50ms delay)
+                _SSD1683_WRITE_BORDER,
+                1,  # Border waveform control
+                0x05,  # Border color/waveform
+                _SSD1683_TEMP_CONTROL,
+                1,  # Temperature control
+                0x80,  # Read temp
+                _SSD1683_DATA_MODE,
+                1,  # Data entry mode
+                0x03,  # Y decrement, X increment
+                0xFE,  # End of initialization
+            ]
+        )
+
+    def begin(self, reset: bool = True) -> None:
+        """Begin communication with the display and set basic settings"""
+        if reset:
+            self.hardware_reset()
+        self.power_down()
+
+    def busy_wait(self) -> None:
+        """Wait for display to be done with current task, either by polling the
+        busy pin, or pausing"""
+        if self._busy:
+            while self._busy.value:  # wait for busy low
+                time.sleep(0.01)
+        else:
+            time.sleep(_BUSY_WAIT / 1000.0)  # Convert ms to seconds
+
+    def power_up(self) -> None:
+        """Power up the display in preparation for writing RAM and updating"""
+        self.hardware_reset()
+        time.sleep(0.1)
+        self.busy_wait()
+
+        # Use custom init code if provided, otherwise use default
+        init_code = self._default_init_code
+        if hasattr(self, "_epd_init_code") and self._epd_init_code is not None:
+            init_code = self._epd_init_code
+
+        # Send initialization sequence
+        self._send_command_list(init_code)
+
+        # Set RAM window
+        self.set_ram_window(0, 0, (self._width // 8) - 1, self._height - 1)
+
+        # Set RAM address to start position
+        self.set_ram_address(0, 0)
+
+        # Set LUT if we have one
+        if hasattr(self, "_epd_lut_code") and self._epd_lut_code:
+            self._send_command_list(self._epd_lut_code)
+
+        # Set display size and driver output control
+        _b0 = (self._height - 1) & 0xFF
+        _b1 = ((self._height - 1) >> 8) & 0xFF
+        _b2 = 0x00
+        self.command(_SSD1683_DRIVER_CONTROL, bytearray([_b0, _b1, _b2]))
+
+    def power_down(self) -> None:
+        """Power down the display - required when not actively displaying!"""
+        # Only deep sleep if we can get out of it
+        if self._rst:
+            # deep sleep
+            self.command(_SSD1683_DEEP_SLEEP, bytearray([0x01]))
+            time.sleep(0.1)
+        else:
+            self.command(_SSD1683_SW_RESET)
+            self.busy_wait()
+
+    def update(self) -> None:
+        """Update the display from internal memory"""
+        # display update sequence
+        self.command(_SSD1683_DISP_CTRL2, bytearray([self._display_update_val]))
+        self.command(_SSD1683_MASTER_ACTIVATE)
+        self.busy_wait()
+
+        if not self._busy:
+            time.sleep(1)  # wait 1 second
+
+    def write_ram(self, index: Literal[0, 1]) -> int:
+        """Send the one byte command for starting the RAM write process. Returns
+        the byte read at the same time over SPI. index is the RAM buffer, can be
+        0 or 1 for tri-color displays."""
+        if index == 0:
+            return self.command(_SSD1683_WRITE_RAM1, end=False)
+        if index == 1:
+            return self.command(_SSD1683_WRITE_RAM2, end=False)
+        raise RuntimeError("RAM index must be 0 or 1")
+
+    def set_ram_address(self, x: int, y: int) -> None:
+        """Set the RAM address location"""
+        # set RAM x address count
+        self.command(_SSD1683_SET_RAMXCOUNT, bytearray([x & 0xFF]))
+
+        # set RAM y address count
+        self.command(_SSD1683_SET_RAMYCOUNT, bytearray([y & 0xFF, (y >> 8) & 0xFF]))
+
+    def set_ram_window(self, x1: int, y1: int, x2: int, y2: int) -> None:
+        """Set the RAM window for partial updates"""
+        # Set ram X start/end position
+        self.command(_SSD1683_SET_RAMXPOS, bytearray([x1 & 0xFF, x2 & 0xFF]))
+
+        # Set ram Y start/end position
+        self.command(
+            _SSD1683_SET_RAMYPOS,
+            bytearray([y1 & 0xFF, (y1 >> 8) & 0xFF, y2 & 0xFF, (y2 >> 8) & 0xFF]),
+        )
+
+    def _send_command_list(self, init_sequence: bytes) -> None:
+        """Send a sequence of commands from an initialization list"""
+        i = 0
+        while i < len(init_sequence):
+            cmd = init_sequence[i]
+            i += 1
+
+            if cmd == 0xFE:  # End marker
+                break
+            elif cmd == 0xFF:  # Delay marker
+                if i < len(init_sequence):
+                    delay_ms = init_sequence[i]
+                    i += 1
+                    time.sleep(delay_ms / 1000.0)
+            elif i < len(init_sequence):
+                num_args = init_sequence[i]
+                i += 1
+                if num_args > 0 and (i + num_args) <= len(init_sequence):
+                    args = init_sequence[i : i + num_args]
+                    self.command(cmd, bytearray(args))
+                    i += num_args
+                else:
+                    self.command(cmd)

adafruit_epd/uc8179.py

@@ -0,0 +1,213 @@
+# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`adafruit_epd.uc8179` - Adafruit UC8179 - ePaper display driver
+====================================================================================
+CircuitPython driver for Adafruit UC8179 display breakouts
+* Author(s): Liz Clark
+"""
+
+import time
+
+import adafruit_framebuf
+from micropython import const
+
+from adafruit_epd.epd import Adafruit_EPD
+
+try:
+    """Needed for type annotations"""
+    import typing
+
+    from busio import SPI
+    from digitalio import DigitalInOut
+    from typing_extensions import Literal
+
+except ImportError:
+    pass
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git"
+
+# UC8179 commands
+_UC8179_PANELSETTING = const(0x00)
+_UC8179_POWERSETTING = const(0x01)
+_UC8179_POWEROFF = const(0x02)
+_UC8179_POWERON = const(0x04)
+_UC8179_DEEPSLEEP = const(0x07)
+_UC8179_WRITE_RAM1 = const(0x10)
+_UC8179_DATASTOP = const(0x11)
+_UC8179_DISPLAYREFRESH = const(0x12)
+_UC8179_WRITE_RAM2 = const(0x13)
+_UC8179_DUALSPI = const(0x15)
+_UC8179_WRITE_VCOM = const(0x50)
+_UC8179_TCON = const(0x60)
+_UC8179_TRES = const(0x61)
+_UC8179_GET_STATUS = const(0x71)
+
+BUSY_WAIT = const(500)  # milliseconds
+
+
+class Adafruit_UC8179(Adafruit_EPD):
+    """driver class for Adafruit UC8179 ePaper display breakouts"""
+
+    def __init__(
+        self,
+        width: int,
+        height: int,
+        spi: SPI,
+        *,
+        cs_pin: DigitalInOut,
+        dc_pin: DigitalInOut,
+        sramcs_pin: DigitalInOut,
+        rst_pin: DigitalInOut,
+        busy_pin: DigitalInOut,
+    ) -> None:
+        # Adjust height to be divisible by 8 (direct from Arduino)
+        if (height % 8) != 0:
+            height += 8 - (height % 8)
+
+        super().__init__(width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin)
+
+        # Calculate buffer sizes exactly as Arduino does: width * height / 8
+        self._buffer1_size = width * height // 8
+        self._buffer2_size = self._buffer1_size
+
+        if sramcs_pin:
+            # Using external SRAM
+            self._buffer1 = self.sram.get_view(0)
+            self._buffer2 = self.sram.get_view(self._buffer1_size)
+        else:
+            # Using internal RAM
+            self._buffer1 = bytearray(self._buffer1_size)
+            self._buffer2 = bytearray(self._buffer2_size)
+
+        # Create frame buffers
+        self._framebuf1 = adafruit_framebuf.FrameBuffer(
+            self._buffer1,
+            width,
+            height,
+            buf_format=adafruit_framebuf.MHMSB,
+        )
+        self._framebuf2 = adafruit_framebuf.FrameBuffer(
+            self._buffer2,
+            width,
+            height,
+            buf_format=adafruit_framebuf.MHMSB,
+        )
+
+        # Set up which frame buffer is which color
+        self.set_black_buffer(0, True)
+        self.set_color_buffer(1, False)
+
+        # UC8179 uses single byte transactions
+        self._single_byte_tx = False
+
+        # Default refresh delay (from Adafruit_EPD base class in Arduino)
+        self.default_refresh_delay = 15  # seconds
+        # pylint: enable=too-many-arguments
+
+    def begin(self, reset: bool = True) -> None:
+        """Begin communication with the display and set basic settings"""
+        if reset:
+            self.hardware_reset()
+        self.power_down()
+
+    def busy_wait(self) -> None:
+        """Wait for display to be done with current task, either by polling the
+        busy pin, or pausing"""
+        if self._busy:
+            # Wait for busy pin to go HIGH
+            while not self._busy.value:
+                self.command(_UC8179_GET_STATUS)
+                time.sleep(0.1)
+        else:
+            # No busy pin, just wait
+            time.sleep(BUSY_WAIT / 1000.0)
+        # Additional delay after busy signal
+        time.sleep(0.2)
+
+    def power_up(self) -> None:
+        """Power up the display in preparation for writing RAM and updating"""
+        self.hardware_reset()
+
+        # Power setting
+        self.command(
+            _UC8179_POWERSETTING,
+            bytearray(
+                [
+                    0x07,  # VGH=20V
+                    0x07,  # VGL=-20V
+                    0x3F,  # VDH=15V
+                    0x3F,  # VDL=-15V
+                ]
+            ),
+        )
+
+        # Power on
+        self.command(_UC8179_POWERON)
+        time.sleep(0.1)  # 100ms delay
+        self.busy_wait()
+
+        # Panel setting
+        self.command(_UC8179_PANELSETTING, bytearray([0b011111]))  # BW OTP LUT
+
+        # Resolution setting
+        self.command(
+            _UC8179_TRES,
+            bytearray(
+                [self._width >> 8, self._width & 0xFF, self._height >> 8, self._height & 0xFF]
+            ),
+        )
+
+        # Dual SPI setting
+        self.command(_UC8179_DUALSPI, bytearray([0x00]))
+
+        # VCOM setting
+        self.command(_UC8179_WRITE_VCOM, bytearray([0x10, 0x07]))
+
+        # TCON setting
+        self.command(_UC8179_TCON, bytearray([0x22]))
+
+    def power_down(self) -> None:
+        """Power down the display - required when not actively displaying!"""
+        self.command(_UC8179_POWEROFF)
+        self.busy_wait()
+
+        # Only deep sleep if we have a reset pin to wake it up
+        if self._rst:
+            self.command(_UC8179_DEEPSLEEP, bytearray([0x05]))
+        time.sleep(0.1)
+
+    def update(self) -> None:
+        """Update the display from internal memory"""
+        self.command(_UC8179_DISPLAYREFRESH)
+        time.sleep(0.1)  # 100ms delay
+        self.busy_wait()
+
+        if not self._busy:
+            # If no busy pin, use default refresh delay
+            time.sleep(self.default_refresh_delay)
+
+    def write_ram(self, index: Literal[0, 1]) -> int:
+        """Send the one byte command for starting the RAM write process. Returns
+        the byte read at the same time over SPI. index is the RAM buffer, can be
+        0 or 1 for tri-color displays."""
+        if index == 0:
+            return self.command(_UC8179_WRITE_RAM1, end=False)
+        if index == 1:
+            return self.command(_UC8179_WRITE_RAM2, end=False)
+        raise RuntimeError("RAM index must be 0 or 1")
+
+    def set_ram_address(self, x: int, y: int) -> None:  # noqa: PLR6301, F841
+        """Set the RAM address location, not used on this chipset but required by
+        the superclass"""
+        # Not used in UC8179 chip
+        pass
+
+    def set_ram_window(self, x1: int, y1: int, x2: int, y2: int) -> None:  # noqa: PLR6301, F841
+        """Set the RAM window, not used on this chipset but required by
+        the superclass"""
+        # Not used in UC8179 chip
+        pass

examples/epd_bitmap.py

@@ -14,7 +14,9 @@ from adafruit_epd.ssd1608 import Adafruit_SSD1608
 from adafruit_epd.ssd1675 import Adafruit_SSD1675
 from adafruit_epd.ssd1680 import Adafruit_SSD1680
 from adafruit_epd.ssd1681 import Adafruit_SSD1681
+from adafruit_epd.ssd1683 import Adafruit_SSD1683
 from adafruit_epd.uc8151d import Adafruit_UC8151D
+from adafruit_epd.uc8179 import Adafruit_UC8179
 
 # create the spi device and pins we will need
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@@ -34,8 +36,11 @@ print("Creating display")
 # display = Adafruit_EK79686(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_IL0373(152, 152,         # 1.54" Tri-color display
 # display = Adafruit_UC8151D(128, 296,        # 2.9" mono flexible display
+# display = Adafruit_UC8179(648, 480,         # 5.83" mono 648x480 display
+# display = Adafruit_UC8179(800, 480,         # 7.5" mono 800x480 display
 # display = Adafruit_IL0373(128, 296,         # 2.9" Tri-color display IL0373
 # display = Adafruit_SSD1680(128, 296,        # 2.9" Tri-color display SSD1680
+# display = Adafruit_SSD1683(400, 300,        # 4.2" 300x400 Tri-Color display
 # display = Adafruit_IL0398(400, 300,         # 4.2" Tri-color display
 display = Adafruit_IL0373(
     104,
@@ -48,7 +53,9 @@ display = Adafruit_IL0373(
     busy_pin=busy,
 )
 
-# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY uncomment these lines!
+# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY OR!
+# UC8179 5.83" or 7.5" displays
+# uncomment these lines!
 # display.set_black_buffer(1, False)
 # display.set_color_buffer(1, False)
 

examples/epd_blinka.py

@@ -11,15 +11,15 @@ from adafruit_epd.epd import Adafruit_EPD
 from adafruit_epd.il0373 import Adafruit_IL0373
 from adafruit_epd.il0398 import Adafruit_IL0398
 from adafruit_epd.il91874 import Adafruit_IL91874
+from adafruit_epd.jd79661 import Adafruit_JD79661
 from adafruit_epd.ssd1608 import Adafruit_SSD1608
 from adafruit_epd.ssd1675 import Adafruit_SSD1675
 from adafruit_epd.ssd1675b import Adafruit_SSD1675B
 from adafruit_epd.ssd1680 import Adafruit_SSD1680
 from adafruit_epd.ssd1681 import Adafruit_SSD1681
+from adafruit_epd.ssd1683 import Adafruit_SSD1683
 from adafruit_epd.uc8151d import Adafruit_UC8151D
-
+from adafruit_epd.uc8179 import Adafruit_UC8179
-# create the spi device and pins we will need
-spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
 
 # create the spi device and pins we will need
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@@ -32,14 +32,18 @@ busy = digitalio.DigitalInOut(board.D7)  # can be None to not use this pin
 
 # give them all to our driver
 print("Creating display")
+# display = Adafruit_JD79661(122, 150,        # 2.13" Quad-color display
 # display = Adafruit_SSD1608(200, 200,        # 1.54" HD mono display
 # display = Adafruit_SSD1680(122, 250,        # 2.13" HD Tri-color display
 # display = Adafruit_SSD1681(200, 200,        # 1.54" HD Tri-color display
 # display = Adafruit_SSD1675(122, 250,        # 2.13" HD mono display
+# display = Adafruit_SSD1683(400, 300,        # 4.2" 300x400 Tri-Color display
 # display = Adafruit_IL91874(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_EK79686(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_IL0373(152, 152,         # 1.54" Tri-color display
 # display = Adafruit_UC8151D(128, 296,        # 2.9" mono flexible display
+# display = Adafruit_UC8179(648, 480,         # 5.83" mono 648x480 display
+# display = Adafruit_UC8179(800, 480,         # 7.5" mono 800x480 display
 # display = Adafruit_IL0373(128, 296,         # 2.9" Tri-color display
 # display = Adafruit_IL0398(400, 300,         # 4.2" Tri-color display
 # display = Adafruit_IL0373(104, 212,         # 2.13" Tri-color display
@@ -54,7 +58,9 @@ display = Adafruit_SSD1675B(
     busy_pin=busy,
 )
 
-# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY uncomment these lines!
+# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY OR!
+# UC8179 5.83" or 7.5" displays
+# uncomment these lines!
 # display.set_black_buffer(1, False)
 # display.set_color_buffer(1, False)
 
@@ -70,6 +76,7 @@ height = display.height
 image = Image.new("RGB", (width, height))
 
 WHITE = (0xFF, 0xFF, 0xFF)
+YELLOW = (0xFF, 0xFF, 0x00)
 RED = (0xFF, 0x00, 0x00)
 BLACK = (0x00, 0x00, 0x00)
 
@@ -118,9 +125,15 @@ font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
 # Some other nice fonts to try: http://www.dafont.com/bitmap.php
 # font = ImageFont.truetype('Minecraftia.ttf', 8)
 
+if type(display) == Adafruit_JD79661:
+    # for quad color, test yellow
+    fill = YELLOW
+else:
+    # otherwise, text is red
+    fill = RED
 # Write two lines of text.
-draw.text((x, top), "Hello", font=font, fill=RED)
+draw.text((x, top), "Hello", font=font, fill=fill)
-draw.text((x, top + 20), "World!", font=font, fill=RED)
+draw.text((x, top + 20), "World!", font=font, fill=fill)
 
 # Display image.
 display.image(image)

examples/epd_pillow_demo.py

@@ -15,11 +15,14 @@ from adafruit_epd.ek79686 import Adafruit_EK79686
 from adafruit_epd.il0373 import Adafruit_IL0373
 from adafruit_epd.il0398 import Adafruit_IL0398
 from adafruit_epd.il91874 import Adafruit_IL91874
+from adafruit_epd.jd79661 import Adafruit_JD79661
 from adafruit_epd.ssd1608 import Adafruit_SSD1608
 from adafruit_epd.ssd1675 import Adafruit_SSD1675
 from adafruit_epd.ssd1680 import Adafruit_SSD1680, Adafruit_SSD1680Z
 from adafruit_epd.ssd1681 import Adafruit_SSD1681
+from adafruit_epd.ssd1683 import Adafruit_SSD1683
 from adafruit_epd.uc8151d import Adafruit_UC8151D
+from adafruit_epd.uc8179 import Adafruit_UC8179
 
 # First define some color constants
 WHITE = (0xFF, 0xFF, 0xFF)
@@ -42,6 +45,7 @@ rst = digitalio.DigitalInOut(board.D27)
 busy = digitalio.DigitalInOut(board.D17)
 
 # give them all to our driver
+# display = Adafruit_JD79661(122, 150,        # 2.13" Quad-color display
 # display = Adafruit_SSD1608(200, 200,        # 1.54" HD mono display
 # display = Adafruit_SSD1675(122, 250,        # 2.13" HD mono display
 # display = Adafruit_SSD1680(122, 250,        # 2.13" HD Tri-color or mono display
@@ -51,8 +55,11 @@ busy = digitalio.DigitalInOut(board.D17)
 # display = Adafruit_EK79686(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_IL0373(152, 152,         # 1.54" Tri-color display
 # display = Adafruit_UC8151D(128, 296,        # 2.9" mono flexible display
+# display = Adafruit_UC8179(648, 480,         # 5.83" mono 648x480 display
+# display = Adafruit_UC8179(800, 480,         # 7.5" mono 800x480 display
 # display = Adafruit_IL0373(128, 296,         # 2.9" Tri-color display IL0373
 # display = Adafruit_SSD1680(128, 296,        # 2.9" Tri-color display SSD1680
+# display = Adafruit_SSD1683(400, 300,        # 4.2" 300x400 Tri-Color display
 # display = Adafruit_IL0398(400, 300,         # 4.2" Tri-color display
 display = Adafruit_IL0373(
     104,
@@ -65,7 +72,9 @@ display = Adafruit_IL0373(
     busy_pin=busy,
 )
 
-# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY uncomment these lines!
+# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY OR!
+# UC8179 5.83" or 7.5" displays
+# uncomment these lines!
 # display.set_black_buffer(1, False)
 # display.set_color_buffer(1, False)
 

examples/epd_pillow_image.py

@@ -17,11 +17,14 @@ from adafruit_epd.ek79686 import Adafruit_EK79686
 from adafruit_epd.il0373 import Adafruit_IL0373
 from adafruit_epd.il0398 import Adafruit_IL0398
 from adafruit_epd.il91874 import Adafruit_IL91874
+from adafruit_epd.jd79661 import Adafruit_JD79661
 from adafruit_epd.ssd1608 import Adafruit_SSD1608
 from adafruit_epd.ssd1675 import Adafruit_SSD1675
 from adafruit_epd.ssd1680 import Adafruit_SSD1680, Adafruit_SSD1680Z
 from adafruit_epd.ssd1681 import Adafruit_SSD1681
+from adafruit_epd.ssd1683 import Adafruit_SSD1683
 from adafruit_epd.uc8151d import Adafruit_UC8151D
+from adafruit_epd.uc8179 import Adafruit_UC8179
 
 # create the spi device and pins we will need
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@@ -32,6 +35,7 @@ rst = digitalio.DigitalInOut(board.D27)
 busy = digitalio.DigitalInOut(board.D17)
 
 # give them all to our driver
+# display = Adafruit_JD79661(122, 150,        # 2.13" Quad-color display
 # display = Adafruit_SSD1608(200, 200,        # 1.54" HD mono display
 # display = Adafruit_SSD1675(122, 250,        # 2.13" HD mono display
 # display = Adafruit_SSD1680(122, 250,        # 2.13" HD Tri-color or mono display
@@ -41,8 +45,11 @@ busy = digitalio.DigitalInOut(board.D17)
 # display = Adafruit_EK79686(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_IL0373(152, 152,         # 1.54" Tri-color display
 # display = Adafruit_UC8151D(128, 296,        # 2.9" mono flexible display
+# display = Adafruit_UC8179(648, 480,         # 5.83" mono 648x480 display
+# display = Adafruit_UC8179(800, 480,         # 7.5" mono 800x480 display
 # display = Adafruit_IL0373(128, 296,         # 2.9" Tri-color display IL0373
 # display = Adafruit_SSD1680(128, 296,        # 2.9" Tri-color display SSD1680
+# display = Adafruit_SSD1683(400, 300,        # 4.2" 300x400 Tri-Color display
 # display = Adafruit_IL0398(400, 300,         # 4.2" Tri-color display
 display = Adafruit_IL0373(
     104,
@@ -55,7 +62,9 @@ display = Adafruit_IL0373(
     busy_pin=busy,
 )
 
-# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY uncomment these lines!
+# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY OR!
+# UC8179 5.83" or 7.5" displays
+# uncomment these lines!
 # display.set_black_buffer(1, False)
 # display.set_color_buffer(1, False)
 
@@ -86,6 +95,38 @@ image = image.crop((x, y, x + display.width, y + display.height)).convert("RGB")
 # Convert to Monochrome and Add dithering
 # image = image.convert("1").convert("L")
 
+if type(display) == Adafruit_JD79661:
+    # Create a palette with the 4 colors: Black, White, Red, Yellow
+    # The palette needs 768 values (256 colors × 3 channels)
+    palette = []
+
+    # We'll map the 256 palette indices to our 4 colors
+    # 0-63: Black, 64-127: Red, 128-191: Yellow, 192-255: White
+    for i in range(256):
+        if i < 64:
+            palette.extend([0, 0, 0])  # Black
+        elif i < 128:
+            palette.extend([255, 0, 0])  # Red
+        elif i < 192:
+            palette.extend([255, 255, 0])  # Yellow
+        else:
+            palette.extend([255, 255, 255])  # White
+
+    # Create a palette image
+    palette_img = Image.new("P", (1, 1))
+    palette_img.putpalette(palette)
+
+    # Optional: Enhance colors before dithering for better results
+    # from PIL import ImageEnhance
+    # enhancer = ImageEnhance.Color(image)
+    # image = enhancer.enhance(1.5)  # Increase color saturation
+
+    # Quantize the image using Floyd-Steinberg dithering
+    image = image.quantize(palette=palette_img, dither=Image.FLOYDSTEINBERG)
+
+    # Convert back to RGB for the display driver
+    image = image.convert("RGB")
+
 # Display image.
 display.image(image)
 display.display()

examples/epd_simpletest.py

@@ -10,11 +10,14 @@ from adafruit_epd.epd import Adafruit_EPD
 from adafruit_epd.il0373 import Adafruit_IL0373
 from adafruit_epd.il0398 import Adafruit_IL0398
 from adafruit_epd.il91874 import Adafruit_IL91874
+from adafruit_epd.jd79661 import Adafruit_JD79661
 from adafruit_epd.ssd1608 import Adafruit_SSD1608
 from adafruit_epd.ssd1675 import Adafruit_SSD1675
 from adafruit_epd.ssd1680 import Adafruit_SSD1680, Adafruit_SSD1680Z
 from adafruit_epd.ssd1681 import Adafruit_SSD1681
+from adafruit_epd.ssd1683 import Adafruit_SSD1683
 from adafruit_epd.uc8151d import Adafruit_UC8151D
+from adafruit_epd.uc8179 import Adafruit_UC8179
 
 # create the spi device and pins we will need
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@@ -26,6 +29,7 @@ busy = digitalio.DigitalInOut(board.D5)  # can be None to not use this pin
 
 # give them all to our drivers
 print("Creating display")
+# display = Adafruit_JD79661(122, 150,        # 2.13" Quad-color display
 # display = Adafruit_SSD1608(200, 200,        # 1.54" HD mono display
 # display = Adafruit_SSD1675(122, 250,        # 2.13" HD mono display
 # display = Adafruit_SSD1680(122, 250,        # 2.13" HD Tri-color display
@@ -35,8 +39,11 @@ print("Creating display")
 # display = Adafruit_EK79686(176, 264,        # 2.7" Tri-color display
 # display = Adafruit_IL0373(152, 152,         # 1.54" Tri-color display
 # display = Adafruit_UC8151D(128, 296,        # 2.9" mono flexible display
+# display = Adafruit_UC8179(648, 480,         # 5.83" mono 648x480 display
+# display = Adafruit_UC8179(800, 480,         # 7.5" mono 800x480 display
 # display = Adafruit_IL0373(128, 296,         # 2.9" Tri-color display IL0373
 # display = Adafruit_SSD1680(128, 296,        # 2.9" Tri-color display SSD1680
+# display = Adafruit_SSD1683(400, 300,        # 4.2" 300x400 Tri-Color display
 # display = Adafruit_IL0398(400, 300,         # 4.2" Tri-color display
 display = Adafruit_IL0373(
     104,
@@ -49,7 +56,9 @@ display = Adafruit_IL0373(
     busy_pin=busy,
 )
 
-# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY uncomment these lines!
+# IF YOU HAVE A 2.13" FLEXIBLE DISPLAY OR!
+# UC8179 5.83" or 7.5" displays
+# uncomment these lines!
 # display.set_black_buffer(1, False)
 # display.set_color_buffer(1, False)
 
@@ -58,20 +67,33 @@ display = Adafruit_IL0373(
 # display.set_color_buffer(1, True)
 
 display.rotation = 1
+if type(display) == Adafruit_JD79661:
+    WHITE = Adafruit_JD79661.WHITE
+    BLACK = Adafruit_JD79661.BLACK
+    RED = Adafruit_JD79661.RED
+    YELLOW = Adafruit_JD79661.YELLOW
+else:
+    WHITE = Adafruit_EPD.WHITE
+    BLACK = Adafruit_EPD.BLACK
+    RED = Adafruit_EPD.RED
 
 # clear the buffer
 print("Clear buffer")
-display.fill(Adafruit_EPD.WHITE)
+display.fill(WHITE)
-display.pixel(10, 100, Adafruit_EPD.BLACK)
+display.pixel(10, 100, BLACK)
 
 print("Draw Rectangles")
-display.fill_rect(5, 5, 10, 10, Adafruit_EPD.RED)
+display.fill_rect(5, 5, 10, 10, RED)
-display.rect(0, 0, 20, 30, Adafruit_EPD.BLACK)
+display.rect(0, 0, 20, 30, BLACK)
 
 print("Draw lines")
-display.line(0, 0, display.width - 1, display.height - 1, Adafruit_EPD.BLACK)
+if type(display) == Adafruit_JD79661:
-display.line(0, display.height - 1, display.width - 1, 0, Adafruit_EPD.RED)
+    display.line(0, 0, display.width - 1, display.height - 1, YELLOW)
+    display.line(0, display.height - 1, display.width - 1, 0, YELLOW)
+else:
+    display.line(0, 0, display.width - 1, display.height - 1, BLACK)
+    display.line(0, display.height - 1, display.width - 1, 0, RED)
 
 print("Draw text")
-display.text("hello world", 25, 10, Adafruit_EPD.BLACK)
+display.text("hello world", 25, 10, BLACK)
 display.display()