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Merge pull request #55 from makermelissa/main
Added UC8151D support
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| # SPDX-FileCopyrightText: 2018 Dean Miller for Adafruit Industries | ||
| # | ||
| # SPDX-License-Identifier: MIT | ||
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| """ | ||
| `adafruit_epd.uc8151d` - Adafruit UC8151D - ePaper display driver | ||
| ==================================================================================== | ||
| CircuitPython driver for Adafruit UC8151D display breakouts | ||
| * Author(s): Dean Miller | ||
| """ | ||
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| import time | ||
| from micropython import const | ||
| import adafruit_framebuf | ||
| from adafruit_epd.epd import Adafruit_EPD | ||
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| __version__ = "0.0.0-auto.0" | ||
| __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git" | ||
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| _UC8151D_PANEL_SETTING = const(0x00) | ||
| _UC8151D_POWER_SETTING = const(0x01) | ||
| _UC8151D_POWER_OFF = const(0x02) | ||
| _UC8151D_POWER_OFF_SEQUENCE = const(0x03) | ||
| _UC8151D_POWER_ON = const(0x04) | ||
| _UC8151D_POWER_ON_MEASURE = const(0x05) | ||
| _UC8151D_BOOSTER_SOFT_START = const(0x06) | ||
| _UC8151D_DEEP_SLEEP = const(0x07) | ||
| _UC8151D_DTM1 = const(0x10) | ||
| _UC8151D_DATA_STOP = const(0x11) | ||
| _UC8151D_DISPLAY_REFRESH = const(0x12) | ||
| _UC8151D_DTM2 = const(0x13) | ||
| _UC8151D_AUTO = const(0x17) | ||
| _UC8151D_LUTOPT = const(0x2A) | ||
| _UC8151D_PLL = const(0x30) | ||
| _UC8151D_TSC = const(0x40) | ||
| _UC8151D_TSE = const(0x41) | ||
| _UC8151D_TSW = const(0x42) | ||
| _UC8151D_TSR = const(0x43) | ||
| _UC8151D_PBC = const(0x44) | ||
| _UC8151D_CDI = const(0x50) | ||
| _UC8151D_LPD = const(0x51) | ||
| _UC8151D_TRES = const(0x65) | ||
| _UC8151D_GSST = const(0x70) | ||
| _UC8151D_REV = const(0x70) | ||
| _UC8151D_FLG = const(0x71) | ||
| _UC8151D_AMV = const(0x80) | ||
| _UC8151D_VV = const(0x81) | ||
| _UC8151D_VCM_DC_SETTING = const(0x82) | ||
| _UC8151D_PTL = const(0x90) | ||
| _UC8151D_PTIN = const(0x91) | ||
| _UC8151D_PTOUT = const(0x92) | ||
| _UC8151D_PGM = const(0xA0) | ||
| _UC8151D_APG = const(0xA1) | ||
| _UC8151D_ROTP = const(0xA2) | ||
| _UC8151D_CCSET = const(0xE0) | ||
| _UC8151D_PWS = const(0xE3) | ||
| _UC8151D_LVSEL = const(0xE4) | ||
| _UC8151D_TSSET = const(0xE5) | ||
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| class Adafruit_UC8151D(Adafruit_EPD): | ||
| """driver class for Adafruit UC8151D ePaper display breakouts""" | ||
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| # 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 | ||
| ) | ||
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| self._buffer1_size = int(width * height / 8) | ||
| self._buffer2_size = int(width * height / 8) | ||
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| if sramcs_pin: | ||
| self._buffer1 = self.sram.get_view(0) | ||
| self._buffer2 = self.sram.get_view(self._buffer1_size) | ||
| else: | ||
| self._buffer1 = bytearray((width * height) // 8) | ||
| self._buffer2 = bytearray((width * height) // 8) | ||
| # since we have *two* framebuffers - one for red and one for black | ||
| # we dont subclass but manage manually | ||
| 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, True) | ||
| # pylint: enable=too-many-arguments | ||
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| def begin(self, reset=True): | ||
| """Begin communication with the display and set basic settings""" | ||
| if reset: | ||
| self.hardware_reset() | ||
| self.power_down() | ||
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| 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(0.01) | ||
| else: | ||
| time.sleep(0.5) | ||
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| def power_up(self): | ||
| """Power up the display in preparation for writing RAM and updating""" | ||
| self.hardware_reset() | ||
| self.busy_wait() | ||
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| self.command(_UC8151D_POWER_ON) | ||
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| self.busy_wait() | ||
| time.sleep(0.01) | ||
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| self.command(_UC8151D_PANEL_SETTING, bytearray([0x1F])) | ||
| self.command(_UC8151D_CDI, bytearray([0x97])) | ||
| time.sleep(0.05) | ||
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| def power_down(self): | ||
| """Power down the display - required when not actively displaying!""" | ||
| self.command(_UC8151D_CDI, bytearray([0xF7])) | ||
| self.command(_UC8151D_POWER_OFF) | ||
| self.busy_wait() | ||
| self.command(_UC8151D_DEEP_SLEEP, bytearray([0xA5])) | ||
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| def update(self): | ||
| """Update the display from internal memory""" | ||
| self.command(_UC8151D_DISPLAY_REFRESH) | ||
| time.sleep(0.1) | ||
| self.busy_wait() | ||
| if not self._busy: | ||
| time.sleep(15) # wait 15 seconds | ||
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| 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.""" | ||
| if index == 0: | ||
| return self.command(_UC8151D_DTM1, end=False) | ||
| if index == 1: | ||
| return self.command(_UC8151D_DTM2, end=False) | ||
| raise RuntimeError("RAM index must be 0 or 1") | ||
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| 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 |
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