# ***************************************************************************** # * | File : epd7in5bc.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 from . import epdconfig # Display resolution EPD_WIDTH = 640 EPD_HEIGHT = 384 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(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) == 0): # 0: idle, 1: busy epdconfig.delay_ms(100) logger.debug("e-Paper busy release") def init(self): if (epdconfig.module_init() != 0): return -1 self.reset() self.send_command(0x01) # POWER_SETTING self.send_data(0x37) self.send_data(0x00) self.send_command(0x00) # PANEL_SETTING self.send_data(0xCF) self.send_data(0x08) self.send_command(0x30) # PLL_CONTROL self.send_data(0x3A) # PLL: 0-15:0x3C, 15+:0x3A self.send_command(0x82) # VCM_DC_SETTING self.send_data(0x28) #all temperature range self.send_command(0x06) # BOOSTER_SOFT_START self.send_data(0xc7) self.send_data(0xcc) self.send_data(0x15) self.send_command(0x50) # VCOM AND DATA INTERVAL SETTING self.send_data(0x77) self.send_command(0x60) # TCON_SETTING self.send_data(0x22) self.send_command(0x65) # FLASH CONTROL self.send_data(0x00) self.send_command(0x61) # TCON_RESOLUTION self.send_data(self.width >> 8) # source 640 self.send_data(self.width & 0xff) self.send_data(self.height >> 8) # gate 384 self.send_data(self.height & 0xff) self.send_command(0xe5) # FLASH MODE self.send_data(0x03) 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(0x10) for i in range(0, int(self.width / 8 * self.height)): temp1 = imageblack[i] temp2 = imagered[i] j = 0 while (j < 8): if ((temp2 & 0x80) == 0x00): temp3 = 0x04 #red elif ((temp1 & 0x80) == 0x00): temp3 = 0x00 #black else: temp3 = 0x03 #white temp3 = (temp3 << 4) & 0xFF temp1 = (temp1 << 1) & 0xFF temp2 = (temp2 << 1) & 0xFF j += 1 if((temp2 & 0x80) == 0x00): temp3 |= 0x04 #red elif ((temp1 & 0x80) == 0x00): temp3 |= 0x00 #black else: temp3 |= 0x03 #white temp1 = (temp1 << 1) & 0xFF temp2 = (temp2 << 1) & 0xFF self.send_data(temp3) j += 1 self.send_command(0x04) # POWER ON self.ReadBusy() self.send_command(0x12) # display refresh epdconfig.delay_ms(100) self.ReadBusy() def Clear(self): self.send_command(0x10) for i in range(0, int(self.width / 8 * self.height)): self.send_data(0x33) self.send_data(0x33) self.send_data(0x33) self.send_data(0x33) self.send_command(0x04) # POWER ON self.ReadBusy() self.send_command(0x12) # display refresh epdconfig.delay_ms(100) self.ReadBusy() 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() ### END OF FILE ###