# *****************************************************************************
# * | File : epd5in83_V2.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.1
# * | Date : 2022-08-10
# # | Info : python demo
# -----------------------------------------------------------------------------
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation 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 = 648
EPD_HEIGHT = 480
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
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
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)
# send a lot of data
def send_data2(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.spi_writebyte2(data)
epdconfig.digital_write(self.cs_pin, 1)
def ReadBusy(self):
logger.debug("e-Paper busy")
while epdconfig.digital_read(self.busy_pin) == 0:
epdconfig.delay_ms(20)
logger.debug("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x12)
# POWER ON
epdconfig.delay_ms(100)
self.ReadBusy()
def init(self):
if epdconfig.module_init() != 0:
return -1
# EPD hardware init start
self.reset()
self.send_command(0x01) # POWER SETTING
self.send_data(0x07)
self.send_data(0x07) # VGH=20V,VGL=-20V
self.send_data(0x3F) # VDH=15V
self.send_data(0x3F) # VDL=-15V
self.send_command(0x04) # POWER ON
epdconfig.delay_ms(100)
self.ReadBusy() # waiting for the electronic paper IC to release the idle signal
self.send_command(0x00) # PANNEL SETTING
self.send_data(0x1F) # KW-3f KWR-2F BWROTP 0f BWOTP 1f
self.send_command(0x61) # tres
self.send_data(0x02) # source 648
self.send_data(0x88)
self.send_data(0x01) # gate 480
self.send_data(0xE0)
self.send_command(0x15)
self.send_data(0x00)
self.send_command(0x50) # VCOM AND DATA INTERVAL SETTING
self.send_data(0x10)
self.send_data(0x07)
self.send_command(0x60) # TCON SETTING
self.send_data(0x22)
# 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("Vertical")
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("Horizontal")
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 display(self, image):
buf = [0x00] * int(self.width * self.height / 8)
for i in range(0, int(self.width * self.height / 8)):
buf[i] = ~image[i]
self.send_command(0x10)
self.send_data2([0x00] * int(self.width * self.height / 8))
self.send_command(0x13)
self.send_data2(buf)
self.TurnOnDisplay()
def Clear(self):
self.send_command(0x10)
self.send_data2([0x00] * int(self.width * self.height / 8))
self.send_command(0x13)
self.send_data2([0x00] * int(self.width * self.height / 8))
self.TurnOnDisplay()
def sleep(self):
self.send_command(0x02) # POWER_OFF
self.ReadBusy()
self.send_command(0x07) # DEEP_SLEEP
self.send_data(0xA5)
epdconfig.delay_ms(2000)
epdconfig.module_exit()