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- # *****************************************************************************
- # * | File : epd7in5bc_HD.py
- # * | Author : Waveshare team
- # * | Function : Electronic paper driver
- # * | Info :
- # *----------------
- # * | This version: V1.0
- # * | 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
- from . import epdconfig
- # Display resolution
- EPD_WIDTH = 880
- EPD_HEIGHT = 528
- 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(4)
- 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")
- busy = epdconfig.digital_read(self.busy_pin)
- while(busy == 1):
- busy = epdconfig.digital_read(self.busy_pin)
- epdconfig.delay_ms(200)
-
- def init(self):
- if (epdconfig.module_init() != 0):
- return -1
-
- self.reset()
-
- self.send_command(0x12); #SWRESET
- self.ReadBusy(); #waiting for the electronic paper IC to release the idle signal
- self.send_command(0x46); # Auto Write RAM
- self.send_data(0xF7);
- self.ReadBusy(); #waiting for the electronic paper IC to release the idle signal
- self.send_command(0x47); # Auto Write RAM
- self.send_data(0xF7);
- self.ReadBusy(); #waiting for the electronic paper IC to release the idle signal
- self.send_command(0x0C); # Soft start setting
- self.send_data(0xAE);
- self.send_data(0xC7);
- self.send_data(0xC3);
- self.send_data(0xC0);
- self.send_data(0x40);
- self.send_command(0x01); # Set MUX as 527
- self.send_data(0xAF);
- self.send_data(0x02);
- self.send_data(0x01);
- self.send_command(0x11); # Data entry mode
- self.send_data(0x01);
- self.send_command(0x44);
- self.send_data(0x00); # RAM x address start at 0
- self.send_data(0x00);
- self.send_data(0x6F); # RAM x address end at 36Fh -> 879
- self.send_data(0x03);
- self.send_command(0x45);
- self.send_data(0xAF); # RAM y address start at 20Fh;
- self.send_data(0x02);
- self.send_data(0x00); # RAM y address end at 00h;
- self.send_data(0x00);
- self.send_command(0x3C); # VBD
- self.send_data(0x01); # LUT1, for white
- self.send_command(0x18);
- self.send_data(0X80);
- self.send_command(0x22);
- self.send_data(0XB1); #Load Temperature and waveform setting.
- self.send_command(0x20);
- self.ReadBusy(); #waiting for the electronic paper IC to release the idle signal
- self.send_command(0x4E);
- self.send_data(0x00);
- self.send_data(0x00);
- self.send_command(0x4F);
- self.send_data(0xAF);
- self.send_data(0x02);
-
- 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 display(self, imageblack, imagered):
- self.send_command(0x4F);
- self.send_data(0xAf);
-
- self.send_command(0x24)
- for i in range(0, int(self.width * self.height / 8)):
- self.send_data(imageblack[i]);
-
-
- self.send_command(0x26)
- for i in range(0, int(self.width * self.height / 8)):
- self.send_data(~imagered[i]);
-
- self.send_command(0x22);
- self.send_data(0xC7); #Load LUT from MCU(0x32)
- self.send_command(0x20);
- epdconfig.delay_ms(200); #!!!The delay here is necessary, 200uS at least!!!
- self.ReadBusy();
-
- def Clear(self):
- self.send_command(0x4F);
- self.send_data(0xAf);
-
- self.send_command(0x24)
- for i in range(0, int(self.width * self.height / 8)):
- self.send_data(0xff);
-
-
- self.send_command(0x26)
- for i in range(0, int(self.width * self.height / 8)):
- self.send_data(0x00);
-
- self.send_command(0x22);
- self.send_data(0xC7); #Load LUT from MCU(0x32)
- self.send_command(0x20);
- epdconfig.delay_ms(200); #!!!The delay here is necessary, 200uS at least!!!
- self.ReadBusy();
- def sleep(self):
- self.send_command(0x10); #deep sleep
- self.send_data(0x01);
-
- epdconfig.delay_ms(2000)
- epdconfig.module_exit()
- ### END OF FILE ###
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