300 lines
9.6 KiB
Python
300 lines
9.6 KiB
Python
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"""
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* | File : epd13in3b.py
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* | Author : Waveshare team
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* | Function : Electronic paper driver
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2024-04-08
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# | Info : python demo
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-----------------------------------------------------------------------------
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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import logging
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from inkycal.display.drivers import epdconfig
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# Display resolution
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EPD_WIDTH = 960
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EPD_HEIGHT = 680
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GRAY1 = 0xff # white
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GRAY2 = 0xC0
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GRAY3 = 0x80 # gray
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GRAY4 = 0x00 # Blackest
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logger = logging.getLogger(__name__)
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class EPD:
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def __init__(self):
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self.reset_pin = epdconfig.RST_PIN
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self.dc_pin = epdconfig.DC_PIN
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self.busy_pin = epdconfig.BUSY_PIN
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self.cs_pin = epdconfig.CS_PIN
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self.width = EPD_WIDTH
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self.height = EPD_HEIGHT
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if (epdconfig.module_init() != 0):
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return -1
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# Hardware reset
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def reset(self):
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epdconfig.digital_write(self.reset_pin, 1)
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epdconfig.delay_ms(20)
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epdconfig.digital_write(self.reset_pin, 0)
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epdconfig.delay_ms(2)
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epdconfig.digital_write(self.reset_pin, 1)
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epdconfig.delay_ms(20)
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def send_command(self, command):
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epdconfig.digital_write(self.dc_pin, 0)
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epdconfig.digital_write(self.cs_pin, 0)
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epdconfig.spi_writebyte([command])
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epdconfig.digital_write(self.cs_pin, 1)
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def send_data(self, data):
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epdconfig.digital_write(self.dc_pin, 1)
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epdconfig.digital_write(self.cs_pin, 0)
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epdconfig.spi_writebyte([data])
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epdconfig.digital_write(self.cs_pin, 1)
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def send_data2(self, data):
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epdconfig.digital_write(self.dc_pin, 1)
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epdconfig.digital_write(self.cs_pin, 0)
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epdconfig.SPI.writebytes2(data)
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epdconfig.digital_write(self.cs_pin, 1)
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def ReadBusy(self):
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logger.debug("e-Paper busy")
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busy = epdconfig.digital_read(self.busy_pin)
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while (busy == 1):
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busy = epdconfig.digital_read(self.busy_pin)
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epdconfig.delay_ms(20)
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epdconfig.delay_ms(20)
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logger.debug("e-Paper busy release")
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def TurnOnDisplay(self):
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self.send_command(0x22) # Display Update Control
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self.send_data(0xF7)
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self.send_command(0x20) # Activate Display Update Sequence
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self.ReadBusy()
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def TurnOnDisplay_Part(self):
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self.send_command(0x22) # Display Update Control
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self.send_data(0xFF)
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self.send_command(0x20) # Activate Display Update Sequence
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self.ReadBusy()
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def init(self):
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# EPD hardware init start
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self.reset()
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self.ReadBusy()
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self.send_command(0x12) # SWRESET
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self.ReadBusy()
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self.send_command(0x0C)
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self.send_data(0xAE)
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self.send_data(0xC7)
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self.send_data(0xC3)
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self.send_data(0xC0)
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self.send_data(0x80)
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self.send_command(0x01)
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self.send_data(0xA7)
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self.send_data(0x02)
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self.send_data(0x00)
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self.send_command(0x11)
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self.send_data(0x03)
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self.send_command(0x44)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0xBF)
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self.send_data(0x03)
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self.send_command(0x45)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0xA7)
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self.send_data(0x02)
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self.send_command(0x3C)
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self.send_data(0x01)
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self.send_command(0x18)
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self.send_data(0x80)
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self.send_command(0x4E)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_command(0x4F)
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self.send_data(0x00)
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self.send_data(0x00)
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self.ReadBusy()
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# EPD hardware init end
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return 0
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def getbuffer(self, image):
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# logger.debug("bufsiz = ",int(self.width/8) * self.height)
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buf = [0xFF] * (int(self.width / 8) * self.height)
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image_monocolor = image.convert('1')
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imwidth, imheight = image_monocolor.size
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pixels = image_monocolor.load()
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# logger.debug("imwidth = %d, imheight = %d",imwidth,imheight)
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if imwidth == self.width and imheight == self.height:
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logger.debug("Horizontal")
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for y in range(imheight):
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for x in range(imwidth):
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# Set the bits for the column of pixels at the current position.
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if pixels[x, y] == 0:
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buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
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elif imwidth == self.height and imheight == self.width:
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logger.debug("Vertical")
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for y in range(imheight):
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for x in range(imwidth):
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newx = y
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newy = self.height - x - 1
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if pixels[x, y] == 0:
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buf[int((newx + newy * self.width) / 8)] &= ~(0x80 >> (y % 8))
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return buf
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def Clear(self):
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self.send_command(0x24)
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self.send_data2([0xFF] * (int(self.width / 8) * self.height))
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self.send_command(0x26)
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self.send_data2([0x00] * (int(self.width / 8) * self.height))
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self.TurnOnDisplay()
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def Clear_Base(self):
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self.send_command(0x24)
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self.send_data2([0xFF] * (int(self.width / 8) * self.height))
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self.send_command(0x26)
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self.send_data2([0x00] * (int(self.width / 8) * self.height))
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self.TurnOnDisplay()
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self.send_command(0x26)
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self.send_data2([0xFF] * (int(self.width / 8) * self.height))
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def display(self, blackimage, ryimage):
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if (self.width % 8 == 0):
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Width = self.width // 8
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else:
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Width = self.width // 8 + 1
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Height = self.height
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if (blackimage != None):
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self.send_command(0x24)
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self.send_data2(blackimage)
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if (ryimage != None):
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for j in range(Height):
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for i in range(Width):
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ryimage[i + j * Width] = ~ryimage[i + j * Width]
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self.send_command(0x26)
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self.send_data2(ryimage)
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self.TurnOnDisplay()
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def display_Base(self, blackimage, ryimage):
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if (self.width % 8 == 0):
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Width = self.width // 8
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else:
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Width = self.width // 8 + 1
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Height = self.height
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if (blackimage != None):
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self.send_command(0x24)
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self.send_data2(blackimage)
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if (ryimage != None):
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for j in range(Height):
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for i in range(Width):
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ryimage[i + j * Width] = ~ryimage[i + j * Width]
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self.send_command(0x26)
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self.send_data2(ryimage)
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self.TurnOnDisplay()
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self.send_command(0x26)
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self.send_data2(blackimage)
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def display_Partial(self, Image, Xstart, Ystart, Xend, Yend):
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if ((Xstart % 8 + Xend % 8 == 8 & Xstart % 8 > Xend % 8) | Xstart % 8 + Xend % 8 == 0 | (
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Xend - Xstart) % 8 == 0):
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Xstart = Xstart // 8
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Xend = Xend // 8
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else:
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Xstart = Xstart // 8
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if Xend % 8 == 0:
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Xend = Xend // 8
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else:
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Xend = Xend // 8 + 1
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if (self.width % 8 == 0):
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Width = self.width // 8
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else:
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Width = self.width // 8 + 1
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Height = self.height
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Xend -= 1
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Yend -= 1
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self.send_command(0x3C)
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self.send_data(0x80)
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self.send_command(0x44)
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self.send_data((Xstart * 8) & 0xff)
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self.send_data((Xstart >> 5) & 0x01)
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self.send_data((Xend * 8) & 0xff)
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self.send_data((Xend >> 5) & 0x01)
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self.send_command(0x45)
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self.send_data(Ystart & 0xff)
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self.send_data((Ystart >> 8) & 0x01)
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self.send_data(Yend & 0xff)
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self.send_data((Yend >> 8) & 0x01)
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self.send_command(0x4E)
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self.send_data((Xstart * 8) & 0xff)
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self.send_data((Xstart >> 5) & 0x01)
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self.send_command(0x4F)
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self.send_data(Ystart & 0xff)
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self.send_data((Ystart >> 8) & 0x01)
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self.send_command(0x24)
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for j in range(Height):
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for i in range(Width):
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if ((j > Ystart - 1) & (j < (Yend + 1)) & (i > Xstart - 1) & (i < (Xend + 1))):
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self.send_data(Image[i + j * Width])
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self.TurnOnDisplay_Part()
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self.send_command(0x26)
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for j in range(Height):
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for i in range(Width):
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if ((j > Ystart - 1) & (j < (Yend + 1)) & (i > Xstart - 1) & (i < (Xend + 1))):
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self.send_data(Image[i + j * Width])
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def sleep(self):
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self.send_command(0x10) # DEEP_SLEEP
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self.send_data(0x03)
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epdconfig.delay_ms(2000)
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epdconfig.module_exit()
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