""" * | 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 inkycal.display.drivers import epdconfig # Display resolution EPD_WIDTH = 600 EPD_HEIGHT = 448 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 # 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() logging.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.module_exit() ### END OF FILE ###