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epd2in13bc.py
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# *****************************************************************************
# * | File : epd2in13bc.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V4.0
# * | Date : 2019-06-20
# # | 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
import epdconfig
# Display resolution
EPD_WIDTH = 104
EPD_HEIGHT = 212
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(10)
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)
def ReadBusy(self):
logging.debug("e-Paper busy")
self.send_command(0x71);
iter = 0;
while(epdconfig.digital_read(self.busy_pin) == 0):
self.send_command(0x71);
epdconfig.delay_ms(100)
iter+=1
if iter > 150:
logging.debug("Forced e-Paper busy release")
break
logging.debug("e-Paper busy release")
def init(self):
if (epdconfig.module_init() != 0):
return -1
self.reset()
self.send_command(0x04);
self.ReadBusy();#waiting for the electronic paper IC to release the idle signal
self.send_command(0x00); #panel setting
self.send_data(0x0f); #LUT from OTP,128x296
self.send_data(0x89); #Temperature sensor, boost and other related timing settings
self.send_command(0x61); #resolution setting
self.send_data (0x68);
self.send_data (0x00);
self.send_data (0xD4);
self.send_command(0X50); #VCOM AND DATA INTERVAL SETTING
self.send_data(0x77); #WBmode:VBDF 17|D7 VBDW 97 VBDB 57
# WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
return 0
def getbuffer(self, image):
# logging.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()
# logging.debug("imwidth = %d, imheight = %d",imwidth,imheight)
if(imwidth == self.width and imheight == self.height):
logging.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):
logging.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, imageblack, imagered):
self.send_command(0x10)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(imageblack[i])
self.send_command(0x13)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(imagered[i])
self.send_command(0x12) # REFRESH
epdconfig.delay_ms(100)
self.ReadBusy()
def Clear(self):
self.send_command(0x10)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0xFF)
self.send_command(0x13)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0xFF)
self.send_command(0x12) # REFRESH
epdconfig.delay_ms(100)
self.ReadBusy()
def sleep(self):
self.send_command(0X50)
self.send_data(0xf7)
self.send_command(0X02)
self.ReadBusy()
self.send_command(0x07) # DEEP_SLEEP
self.send_data(0xA5) # check code
epdconfig.module_exit()
### END OF FILE ###