""" * | 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 inkycal.display.drivers import epdconfig # Display resolution EPD_WIDTH = 640 EPD_HEIGHT = 384 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(10) 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): logging.debug("e-Paper busy") while (epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy epdconfig.delay_ms(100) logging.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): # logging.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() logging.debug('imwidth = %d imheight = %d ', imwidth, imheight) if (imwidth == self.width and imheight == self.height): logging.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): logging.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.module_exit() ### END OF FILE ###