Acep 7color

adafruit_epd/acep_7color.py

@@ -0,0 +1,170 @@
+# SPDX-FileCopyrightText: 2023 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`adafruit_epd.ACEP` - Adafruit ACEP - ePaper display driver
+====================================================================================
+CircuitPython driver for Adafruit ACEP display breakouts
+* Author(s): Dean Miller
+"""
+
+import time
+from micropython import const
+import adafruit_framebuf
+from adafruit_epd.epd import Adafruit_ADV_EPD
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git"
+
+_ACEP_PANEL_SETTING = const(0x00)
+_ACEP_POWER_SETTING = const(0x01)
+_ACEP_POWER_OFF = const(0x02)
+_ACEP_POWER_OFF_SEQUENCE = const(0x03)
+_ACEP_POWER_ON = const(0x04)
+_ACEP_BOOSTER_SOFT_START = const(0x06)
+_ACEP_DEEP_SLEEP = const(0x07)
+_ACEP_DTM = const(0x10)
+_ACEP_DISPLAY_REFRESH = const(0x12)
+_ACEP_PLL = const(0x30)
+_ACEP_TSE = const(0x40)
+_ACEP_CDI = const(0x50)
+_ACEP_TCON = const(0x60)
+_ACEP_RESOLUTION = const(0x61)
+_ACEP_PWS = const(0xE3)
+
+
+class Adafruit_ACEP(Adafruit_ADV_EPD):
+    """driver class for Adafruit ACEP ePaper display breakouts"""
+
+    # pylint: disable=too-many-arguments
+    def __init__(
+        self, width, height, spi, *, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin
+    ):
+        super().__init__(
+            width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin
+        )
+
+        if (height % 8) != 0:
+            height += 8 - (height % 8)
+
+        self._buffer0_size = int(width * height / 2)
+        self._buffer1_size = self._buffer0_size
+        self._buffer2_size = self._buffer0_size
+        self._buffer3_size = self._buffer0_size
+        self._buffer4_size = self._buffer0_size
+        self._buffer5_size = self._buffer0_size
+
+        self._buffer0 = bytearray(self._buffer0_size)
+        self._buffer1 = self._buffer0
+        self._buffer2 = self._buffer0
+        self._buffer3 = self._buffer0
+        self._buffer4 = self._buffer0
+        self._buffer5 = self._buffer0
+
+        self._framebuf_black = adafruit_framebuf.FrameBuffer(
+            self._buffer0, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf_green = adafruit_framebuf.FrameBuffer(
+            self._buffer1, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf_blue = adafruit_framebuf.FrameBuffer(
+            self._buffer2, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf_red = adafruit_framebuf.FrameBuffer(
+            self._buffer3, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf_yellow = adafruit_framebuf.FrameBuffer(
+            self._buffer4, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+        self._framebuf_orange = adafruit_framebuf.FrameBuffer(
+            self._buffer5, width, height, buf_format=adafruit_framebuf.MHMSB
+        )
+
+        self.set_black_buffer(0, True)
+        self.set_green_buffer(0, False)
+        self.set_blue_buffer(0, False)
+        self.set_red_buffer(0, False)
+        self.set_yellow_buffer(0, False)
+        self.set_orange_buffer(0, False)
+        # pylint: enable=too-many-arguments
+
+    def begin(self, reset=True):
+        """Begin communication with the display and set basic settings"""
+        if reset:
+            self.hardware_reset()
+        self.power_down()
+
+    def busy_wait(self):
+        """Wait for display to be done with current task, either by polling the
+        busy pin, or pausing"""
+        if self._busy:
+            while not self._busy.value:
+                time.sleep(0.1)
+        else:
+            time.sleep(0.5)
+
+    def power_up(self):
+        """Power up the display in preparation for writing RAM and updating"""
+        self.hardware_reset()
+        time.sleep(0.2)
+        self.busy_wait()
+
+        time.sleep(0.1)
+        self.command(_ACEP_PANEL_SETTING, bytearray([0xEF, 0x08]))
+        self.command(_ACEP_POWER_SETTING, bytearray([0x37, 0x00, 0x23, 0x23]))
+        self.command(_ACEP_POWER_OFF_SEQUENCE, bytearray([0x00]))
+        self.command(_ACEP_BOOSTER_SOFT_START, bytearray([0xC7, 0xC7, 0x1D]))
+        self.command(_ACEP_PLL, bytearray([0x3C]))
+        self.command(_ACEP_TSE, bytearray([0x00]))
+        self.command(_ACEP_CDI, bytearray([0x37]))
+        self.command(_ACEP_TCON, bytearray([0x22]))
+        self.command(_ACEP_RESOLUTION, bytearray([0x02, 0x58, 0x01, 0xC0]))
+        self.command(_ACEP_PWS, bytearray([0xAA]))
+        time.sleep(0.1)
+        self.command(_ACEP_CDI, bytearray([0x37]))
+
+        self.command(_ACEP_RESOLUTION, bytearray([0x02, 0x58, 0x01, 0xC0]))
+        time.sleep(0.1)
+
+    def power_down(self):
+        """Power down the display - required when not actively displaying!"""
+        time.sleep(1)
+
+        self.command(_ACEP_DEEP_SLEEP, bytearray([0xA5]))
+
+        time.sleep(0.1)
+
+    def set_resolution(self):
+        self.command(_ACEP_RESOLUTION, bytearray([0x02, 0x58, 0x01, 0xC0]))
+        self.command(_ACEP_DTM, end=False)
+
+    def update(self):
+        """Update the display from internal memory"""
+        self.command(_ACEP_POWER_ON)
+        self.busy_wait()
+        # self.command(_ACEP_DISPLAY_REFRESH, bytearray([0x01, 0x00]))
+        self.command(_ACEP_DISPLAY_REFRESH)
+        self.busy_wait()
+        self.command(_ACEP_POWER_OFF)
+        if not self._busy:
+            time.sleep(15)  # wait 15 seconds
+        else:
+            self.busy_wait()
+        time.sleep(0.2)
+
+    def write_ram(self, index):
+        """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."""
+        # self.command(_ACEP_DTM, end=False)
+        if index == 0:
+            return self.command(_ACEP_DTM, end=False)
+        if index == 1:
+            return self.command(_ACEP_DTM, end=False)
+        raise RuntimeError("RAM index must be 0 or 1")
+
+    def set_ram_address(self, x, y):  # pylint: disable=unused-argument, no-self-use
+        """Set the RAM address location, not used on this chipset but required by
+        the superclass"""
+        return  # on this chip it does nothing