# ***************************************************************************** # * | File : epd5in83.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 = 600 EPD_HEIGHT = 448 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(2) 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 # EPD hardware init start 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(0x06) # BOOSTER_SOFT_START self.send_data(0xc7) self.send_data(0xcc) self.send_data(0x28) self.send_command(0x04) # POWER_ON self.ReadBusy() self.send_command(0x30) # PLL_CONTROL self.send_data(0x3c) self.send_command(0x41) # TEMPERATURE_CALIBRATION self.send_data(0x00) 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(0x61) # TCON_RESOLUTION self.send_data(0x02) # source 600 self.send_data(0x58) self.send_data(0x01) # gate 448 self.send_data(0xC0) self.send_command(0x82) # VCM_DC_SETTING self.send_data(0x1E) # decide by LUT file self.send_command(0xe5) # FLASH MODE self.send_data(0x03) # EPD hardware init end return 0 def getbuffer(self, image): buf = [0x00] * int(self.width * self.height / 4) 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): 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] < 64: # black buf[int((x + y * self.width) / 4)] &= ~(0xC0 >> (x % 4 * 2)) elif pixels[x, y] < 192: # convert gray to red buf[int((x + y * self.width) / 4)] &= ~(0xC0 >> (x % 4 * 2)) buf[int((x + y * self.width) / 4)] |= 0x40 >> (x % 4 * 2) else: # white buf[int((x + y * self.width) / 4)] |= 0xC0 >> (x % 4 * 2) elif(imwidth == self.height and imheight == self.width): for y in range(imheight): for x in range(imwidth): newx = y newy = self.height - x - 1 if pixels[x, y] < 64: # black buf[int((newx + newy*self.width) / 4)] &= ~(0xC0 >> (y % 4 * 2)) elif pixels[x, y] < 192: # convert gray to red buf[int((newx + newy*self.width) / 4)] &= ~(0xC0 >> (y % 4 * 2)) buf[int((newx + newy*self.width) / 4)] |= 0x40 >> (y % 4 * 2) else: # white buf[int((newx + newy*self.width) / 4)] |= 0xC0 >> (y % 4 * 2) return buf def display(self, image): self.send_command(0x10) for i in range(0, int(self.width / 4 * self.height)): temp1 = image[i] j = 0 while (j < 4): if ((temp1 & 0xC0) == 0xC0): temp2 = 0x03 elif ((temp1 & 0xC0) == 0x00): temp2 = 0x00 else: temp2 = 0x04 temp2 = (temp2 << 4) & 0xFF temp1 = (temp1 << 2) & 0xFF j += 1 if((temp1 & 0xC0) == 0xC0): temp2 |= 0x03 elif ((temp1 & 0xC0) == 0x00): temp2 |= 0x00 else: temp2 |= 0x04 temp1 = (temp1 << 2) & 0xFF self.send_data(temp2) j += 1 self.send_command(0x12) epdconfig.delay_ms(100) self.ReadBusy() def Clear(self): self.send_command(0x10) for i in range(0, int(self.width / 4 * self.height)): for j in range(0, 4): self.send_data(0x33) self.send_command(0x12) 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 ###