"""
* | File : epd13in3b.py
* | Author : Waveshare team
* | Function : Electronic paper driver
* | Info :
*----------------
* | This version: V1.0
* | Date : 2024-04-08
# | Info : python demo
-----------------------------------------------------------------------------
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
furished 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 OR 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.
"""
import logging
from inkycal.display.drivers import epdconfig
# Display resolution
EPD_WIDTH = 960
EPD_HEIGHT = 680
GRAY1 = 0xff # white
GRAY2 = 0xC0
GRAY3 = 0x80 # gray
GRAY4 = 0x00 # Blackest
logger = logging.getLogger(__name__)
class EPD:
def __init__(self):
self.reset_pin = epdconfig.RST_PIN
self.dc_pin = epdconfig.DC_PIN
self.busy_pin = epdconfig.BUSY_PIN
self.cs_pin = epdconfig.CS_PIN
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
if (epdconfig.module_init() != 0):
return -1
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(20)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(20)
def send_command(self, command):
epdconfig.digital_write(self.dc_pin, 0)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.spi_writebyte([command])
epdconfig.digital_write(self.cs_pin, 1)
def send_data(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.spi_writebyte([data])
epdconfig.digital_write(self.cs_pin, 1)
def send_data2(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.SPI.writebytes2(data)
epdconfig.digital_write(self.cs_pin, 1)
def ReadBusy(self):
logger.debug("e-Paper busy")
busy = epdconfig.digital_read(self.busy_pin)
while (busy == 1):
busy = epdconfig.digital_read(self.busy_pin)
epdconfig.delay_ms(20)
epdconfig.delay_ms(20)
logger.debug("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xF7)
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
def TurnOnDisplay_Part(self):
self.send_command(0x22) # Display Update Control
self.send_data(0xFF)
self.send_command(0x20) # Activate Display Update Sequence
self.ReadBusy()
def init(self):
# EPD hardware init start
self.reset()
self.ReadBusy()
self.send_command(0x12) # SWRESET
self.ReadBusy()
self.send_command(0x0C)
self.send_data(0xAE)
self.send_data(0xC7)
self.send_data(0xC3)
self.send_data(0xC0)
self.send_data(0x80)
self.send_command(0x01)
self.send_data(0xA7)
self.send_data(0x02)
self.send_data(0x00)
self.send_command(0x11)
self.send_data(0x03)
self.send_command(0x44)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0xBF)
self.send_data(0x03)
self.send_command(0x45)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0xA7)
self.send_data(0x02)
self.send_command(0x3C)
self.send_data(0x01)
self.send_command(0x18)
self.send_data(0x80)
self.send_command(0x4E)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x4F)
self.send_data(0x00)
self.send_data(0x00)
self.ReadBusy()
# EPD hardware init end
return 0
def getbuffer(self, image):
# logger.debug("bufsiz = ",int(self.width/8) * self.height)
buf = [0xFF] * (int(self.width / 8) * self.height)
image_monocolor = image.convert('1')
imwidth, imheight = image_monocolor.size
pixels = image_monocolor.load()
# logger.debug("imwidth = %d, imheight = %d",imwidth,imheight)
if imwidth == self.width and imheight == self.height:
logger.debug("Horizontal")
for y in range(imheight):
for x in range(imwidth):
# Set the bits for the column of pixels at the current position.
if pixels[x, y] == 0:
buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
elif imwidth == self.height and imheight == self.width:
logger.debug("Vertical")
for y in range(imheight):
for x in range(imwidth):
newx = y
newy = self.height - x - 1
if pixels[x, y] == 0:
buf[int((newx + newy * self.width) / 8)] &= ~(0x80 >> (y % 8))
return buf
def Clear(self):
self.send_command(0x24)
self.send_data2([0xFF] * (int(self.width / 8) * self.height))
self.send_command(0x26)
self.send_data2([0x00] * (int(self.width / 8) * self.height))
self.TurnOnDisplay()
def Clear_Base(self):
self.send_command(0x24)
self.send_data2([0xFF] * (int(self.width / 8) * self.height))
self.send_command(0x26)
self.send_data2([0x00] * (int(self.width / 8) * self.height))
self.TurnOnDisplay()
self.send_command(0x26)
self.send_data2([0xFF] * (int(self.width / 8) * self.height))
def display(self, blackimage, ryimage):
if (self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 + 1
Height = self.height
if (blackimage != None):
self.send_command(0x24)
self.send_data2(blackimage)
if (ryimage != None):
for j in range(Height):
for i in range(Width):
ryimage[i + j * Width] = ~ryimage[i + j * Width]
self.send_command(0x26)
self.send_data2(ryimage)
self.TurnOnDisplay()
def display_Base(self, blackimage, ryimage):
if (self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 + 1
Height = self.height
if (blackimage != None):
self.send_command(0x24)
self.send_data2(blackimage)
if (ryimage != None):
for j in range(Height):
for i in range(Width):
ryimage[i + j * Width] = ~ryimage[i + j * Width]
self.send_command(0x26)
self.send_data2(ryimage)
self.TurnOnDisplay()
self.send_command(0x26)
self.send_data2(blackimage)
def display_Partial(self, Image, Xstart, Ystart, Xend, Yend):
if ((Xstart % 8 + Xend % 8 == 8 & Xstart % 8 > Xend % 8) | Xstart % 8 + Xend % 8 == 0 | (
Xend - Xstart) % 8 == 0):
Xstart = Xstart // 8
Xend = Xend // 8
else:
Xstart = Xstart // 8
if Xend % 8 == 0:
Xend = Xend // 8
else:
Xend = Xend // 8 + 1
if (self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 + 1
Height = self.height
Xend -= 1
Yend -= 1
self.send_command(0x3C)
self.send_data(0x80)
self.send_command(0x44)
self.send_data((Xstart * 8) & 0xff)
self.send_data((Xstart >> 5) & 0x01)
self.send_data((Xend * 8) & 0xff)
self.send_data((Xend >> 5) & 0x01)
self.send_command(0x45)
self.send_data(Ystart & 0xff)
self.send_data((Ystart >> 8) & 0x01)
self.send_data(Yend & 0xff)
self.send_data((Yend >> 8) & 0x01)
self.send_command(0x4E)
self.send_data((Xstart * 8) & 0xff)
self.send_data((Xstart >> 5) & 0x01)
self.send_command(0x4F)
self.send_data(Ystart & 0xff)
self.send_data((Ystart >> 8) & 0x01)
self.send_command(0x24)
for j in range(Height):
for i in range(Width):
if ((j > Ystart - 1) & (j < (Yend + 1)) & (i > Xstart - 1) & (i < (Xend + 1))):
self.send_data(Image[i + j * Width])
self.TurnOnDisplay_Part()
self.send_command(0x26)
for j in range(Height):
for i in range(Width):
if ((j > Ystart - 1) & (j < (Yend + 1)) & (i > Xstart - 1) & (i < (Xend + 1))):
self.send_data(Image[i + j * Width])
def sleep(self):
self.send_command(0x10) # DEEP_SLEEP
self.send_data(0x03)
epdconfig.delay_ms(2000)
epdconfig.module_exit()