234 lines
7.7 KiB
Python
234 lines
7.7 KiB
Python
# *****************************************************************************
|
|
# * | File : epd2in66.py
|
|
# * | Author : Waveshare team
|
|
# * | Function : Electronic paper driver
|
|
# * | Info :
|
|
# *----------------
|
|
# * | This version: V1.0
|
|
# * | Date : 2020-07-22
|
|
# # | 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 . import epdconfig
|
|
|
|
# Display resolution
|
|
EPD_WIDTH = 152
|
|
EPD_HEIGHT = 296
|
|
|
|
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
|
|
|
|
WF_PARTIAL = [
|
|
0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x40,0x40,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x0A,0x00,0x00,0x00,0x00,0x00,0x02,0x01,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x00,0x00,0x00,0x00,0x22,0x22,0x22,0x22,0x22,0x22,
|
|
0x00,0x00,0x00,0x22,0x17,0x41,0xB0,0x32,0x36,
|
|
]
|
|
|
|
|
|
# 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(5)
|
|
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):
|
|
logger.debug("e-Paper busy")
|
|
while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
|
|
epdconfig.delay_ms(200)
|
|
logger.debug("e-Paper busy release")
|
|
|
|
|
|
def init(self, mode):
|
|
if (epdconfig.module_init() != 0):
|
|
return -1
|
|
# EPD hardware init start
|
|
self.reset()
|
|
|
|
self.send_command(0x12)
|
|
epdconfig.delay_ms(300)
|
|
self.ReadBusy()
|
|
|
|
self.send_command(0x11) # setting gaet number
|
|
self.send_data(0x03)
|
|
self.send_command(0x44) # set gate voltage
|
|
self.send_data(0x01)
|
|
self.send_data(0x13)
|
|
self.send_command(0x45) # set source voltage
|
|
self.send_data(0x0)
|
|
self.send_data(0x0)
|
|
self.send_data(0x28)
|
|
self.send_data(0x01)
|
|
|
|
if(mode == 0): #full
|
|
self.send_command(0x3C)
|
|
self.send_data(0x01)
|
|
|
|
elif(mode == 1): #partial
|
|
self.load_lut(self.WF_PARTIAL)
|
|
self.send_command(0x37) # set display option, these setting turn on previous function
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x40)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
|
|
self.send_command(0x3C)
|
|
self.send_data(0x80)
|
|
|
|
self.send_command(0x22)
|
|
self.send_data(0xcf)
|
|
|
|
self.send_command(0x20)
|
|
self.ReadBusy()
|
|
|
|
else:
|
|
logger.debug("There is no such mode")
|
|
|
|
return 0
|
|
|
|
|
|
def load_lut(self, lut):
|
|
self.send_command(0x32)
|
|
for i in range(0, 153):
|
|
self.send_data(lut[i])
|
|
|
|
|
|
def turnon_display(self):
|
|
self.send_command(0x20)
|
|
self.ReadBusy()
|
|
|
|
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):
|
|
if (image == None):
|
|
return
|
|
|
|
self.send_command(0x4E)
|
|
self.send_data(0x01)
|
|
self.send_command(0x4F)
|
|
self.send_data(0x27)
|
|
self.send_data(0x01)
|
|
|
|
self.send_command(0x24)
|
|
for j in range(0, self.height):
|
|
for i in range(0, int(self.width / 8)):
|
|
self.send_data(image[i + j * int(self.width / 8)])
|
|
|
|
self.turnon_display()
|
|
|
|
|
|
def Clear(self):
|
|
self.send_command(0x4E)
|
|
self.send_data(0x01)
|
|
self.send_command(0x4F)
|
|
self.send_data(0x27)
|
|
self.send_data(0x01)
|
|
|
|
self.send_command(0x24)
|
|
for j in range(0, self.height):
|
|
for i in range(0, int(self.width / 8)):
|
|
self.send_data(0xff)
|
|
|
|
self.send_command(0x26)
|
|
for j in range(0, self.height):
|
|
for i in range(0, int(self.width / 8)):
|
|
self.send_data(0xff)
|
|
|
|
self.turnon_display()
|
|
|
|
|
|
def sleep(self):
|
|
self.send_command(0X10) # DEEP_SLEEP_MODE
|
|
self.send_data(0x01)
|
|
|
|
epdconfig.delay_ms(2000)
|
|
epdconfig.module_exit()
|
|
|
|
### END OF FILE ###
|
|
|