/
epaper5in83.py
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/
epaper5in83.py
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"""
MicroPython Waveshare 5.83" Black/White GDEW0583T7 e-paper display driver
https://github.com/mcauser/micropython-waveshare-epaper
MIT License
Copyright (c) 2017 Waveshare
Copyright (c) 2018 Mike Causer
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
from micropython import const
from time import sleep_ms
import ustruct
# Display resolution
EPD_WIDTH = const(600)
EPD_HEIGHT = const(448)
# Display commands
PANEL_SETTING = const(0x00)
POWER_SETTING = const(0x01)
POWER_OFF = const(0x02)
#POWER_OFF_SEQUENCE_SETTING = const(0x03)
POWER_ON = const(0x04)
#POWER_ON_MEASURE = const(0x05)
BOOSTER_SOFT_START = const(0x06)
DEEP_SLEEP = const(0x07)
DATA_START_TRANSMISSION_1 = const(0x10)
#DATA_STOP = const(0x11)
DISPLAY_REFRESH = const(0x12)
#IMAGE_PROCESS = const(0x13)
#LUT_FOR_VCOM = const(0x20)
#LUT_BLUE = const(0x21)
#LUT_WHITE = const(0x22)
#LUT_GRAY_1 = const(0x23)
#LUT_GRAY_2 = const(0x24)
#LUT_RED_0 = const(0x25)
#LUT_RED_1 = const(0x26)
#LUT_RED_2 = const(0x27)
#LUT_RED_3 = const(0x28)
#LUT_XON = const(0x29)
PLL_CONTROL = const(0x30)
#TEMPERATURE_SENSOR_COMMAND = const(0x40)
TEMPERATURE_CALIBRATION = const(0x41)
#TEMPERATURE_SENSOR_WRITE = const(0x42)
#TEMPERATURE_SENSOR_READ = const(0x43)
VCOM_AND_DATA_INTERVAL_SETTING = const(0x50)
#LOW_POWER_DETECTION = const(0x51)
TCON_SETTING = const(0x60)
TCON_RESOLUTION = const(0x61)
#SPI_FLASH_CONTROL = const(0x65)
#REVISION = const(0x70)
#GET_STATUS = const(0x71)
#AUTO_MEASUREMENT_VCOM = const(0x80)
#READ_VCOM_VALUE = const(0x81)
VCM_DC_SETTING = const(0x82)
FLASH_MODE = const(0xE5)
BUSY = const(0) # 0=busy, 1=idle
class EPD:
def __init__(self, spi, cs, dc, rst, busy):
self.spi = spi
self.cs = cs
self.dc = dc
self.rst = rst
self.busy = busy
self.cs.init(self.cs.OUT, value=1)
self.dc.init(self.dc.OUT, value=0)
self.rst.init(self.rst.OUT, value=0)
self.busy.init(self.busy.IN)
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
def _command(self, command, data=None):
self.dc(0)
self.cs(0)
self.spi.write(bytearray([command]))
self.cs(1)
if data is not None:
self._data(data)
def _data(self, data):
self.dc(1)
self.cs(0)
self.spi.write(data)
self.cs(1)
def init(self):
self.reset()
self._command(POWER_SETTING, b'\x37\x00')
self._command(PANEL_SETTING, b'\xCF\x08')
self._command(BOOSTER_SOFT_START, b'\xC7\xCC\x28')
self._command(POWER_ON)
self.wait_until_idle()
self._command(PLL_CONTROL, b'\x3C')
self._command(TEMPERATURE_CALIBRATION, b'\x00')
self._command(VCOM_AND_DATA_INTERVAL_SETTING, b'\x77')
self._command(TCON_SETTING, b'\x22')
self._command(TCON_RESOLUTION, ustruct.pack(">HH", EPD_WIDTH, EPD_HEIGHT))
self._command(VCM_DC_SETTING, b'\x1E') # decide by LUT file
self._command(FLASH_MODE, b'\x03')
def wait_until_idle(self):
while self.busy.value() == BUSY:
sleep_ms(100)
def reset(self):
self.rst(0)
sleep_ms(200)
self.rst(1)
sleep_ms(200)
# draw the current frame memory
def display_frame(self, frame_buffer):
if (frame_buffer != None):
self._command(DATA_START_TRANSMISSION_1)
for i in range(0, self.width * self.height // 4):
temp1 = frame_buffer[i]
j = 0
while (j < 4):
if ((temp1 & 0xC0) == 0xC0):
temp2 = 0x03
elif ((temp1 & 0xC0) == 0x00):
temp2 = 0x00
else:
temp2 = 0x04
temp2 = (temp2 << 4) & 0xFF
temp1 = (temp1 << 2) & 0xFF
j += 1
if((temp1 & 0xC0) == 0xC0):
temp2 |= 0x03
elif ((temp1 & 0xC0) == 0x00):
temp2 |= 0x00
else:
temp2 |= 0x04
temp1 = (temp1 << 2) & 0xFF
self._data(bytearray([temp2]))
j += 1
self._command(DISPLAY_REFRESH)
sleep_ms(100)
self.wait_until_idle()
# to wake call reset() or init()
def sleep(self):
self._command(POWER_OFF)
self.wait_until_idle()
self._command(DEEP_SLEEP, b'\xA5')