# ***************************************************************************** # * | 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 ###