511 lines
17 KiB
Python
511 lines
17 KiB
Python
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# *****************************************************************************
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# * | File : epd4in26.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 : 2023-12-20
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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 documnetation 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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#
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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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#
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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 . import epdconfig
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# Display resolution
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EPD_WIDTH = 800
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EPD_HEIGHT = 480
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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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self.GRAY1 = GRAY1 #white
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self.GRAY2 = GRAY2
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self.GRAY3 = GRAY3 #gray
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self.GRAY4 = GRAY4 #Blackest
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LUT_DATA_4Gray = [# #112bytes
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0x80, 0x48, 0x4A, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x0A, 0x48, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x88, 0x48, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xA8, 0x48, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x07, 0x1E, 0x1C, 0x02, 0x00,
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0x05, 0x01, 0x05, 0x01, 0x02,
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0x08, 0x01, 0x01, 0x04, 0x04,
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0x00, 0x02, 0x00, 0x02, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01,
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0x22, 0x22, 0x22, 0x22, 0x22,
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0x17, 0x41, 0xA8, 0x32, 0x30,
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0x00, 0x00 ]
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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_Fast(self):
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self.send_command(0x22) #Display Update Control
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self.send_data(0xC7)
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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 TurnOnDisplay_4GRAY(self):
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self.send_command(0x22) #Display Update Control
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self.send_data(0xC7)
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self.send_command(0x20) #Activate Display Update Sequence
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self.ReadBusy()
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'''
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function : Setting the display window
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parameter:
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xstart : X-axis starting position
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ystart : Y-axis starting position
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xend : End position of X-axis
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yend : End position of Y-axis
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'''
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def SetWindow(self, x_start, y_start, x_end, y_end):
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self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
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self.send_data(x_start & 0xFF)
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self.send_data((x_start>>8) & 0x03)
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self.send_data(x_end & 0xFF)
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self.send_data((x_end>>8) & 0x03)
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self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
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self.send_data(y_start & 0xFF)
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self.send_data((y_start >> 8) & 0xFF)
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self.send_data(y_end & 0xFF)
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self.send_data((y_end >> 8) & 0xFF)
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'''
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function : Set Cursor
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parameter:
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x : X-axis starting position
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y : Y-axis starting position
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'''
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def SetCursor(self, x, y):
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self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
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# x point must be the multiple of 8 or the last 3 bits will be ignored
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self.send_data(x & 0xFF)
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self.send_data((x>>8) & 0x03)
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self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
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self.send_data(y & 0xFF)
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self.send_data((y >> 8) & 0xFF)
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def init(self):
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if (epdconfig.module_init() != 0):
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return -1
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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(0x18) # use the internal temperature sensor
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self.send_data(0x80)
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self.send_command(0x0C) #set soft start
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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) # drive output control
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self.send_data((self.height-1)%256) # Y
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self.send_data((self.height-1)//256) # Y
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self.send_data(0x02)
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self.send_command(0x3C) # Border Border setting
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self.send_data(0x01)
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self.send_command(0x11) # data entry mode
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self.send_data(0x01) # X-mode x+ y-
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self.SetWindow(0, self.height-1, self.width-1, 0)
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self.SetCursor(0, 0)
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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 init_Fast(self):
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if (epdconfig.module_init() != 0):
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return -1
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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(0x18) # use the internal temperature sensor
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self.send_data(0x80)
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self.send_command(0x0C) #set soft start
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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) # drive output control
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self.send_data((self.height-1)%256) # Y
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self.send_data((self.height-1)//256) # Y
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self.send_data(0x02)
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self.send_command(0x3C) # Border Border setting
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self.send_data(0x01)
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self.send_command(0x11) # data entry mode
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self.send_data(0x01) # X-mode x+ y-
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self.SetWindow(0, self.height-1, self.width-1, 0)
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self.SetCursor(0, 0)
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self.ReadBusy()
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#TEMP (1.5s)
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self.send_command(0x1A)
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self.send_data(0x5A)
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self.send_command(0x22)
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self.send_data(0x91)
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self.send_command(0x20)
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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 Lut(self):
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self.send_command(0x32)
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for count in range(0, 105):
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self.send_data(self.LUT_DATA_4Gray[count])
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self.send_command(0x03) #VGH
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self.send_data(self.LUT_DATA_4Gray[105])
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self.send_command(0x04) #
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self.send_data(self.LUT_DATA_4Gray[106]) #VSH1
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self.send_data(self.LUT_DATA_4Gray[107]) #VSH2
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self.send_data(self.LUT_DATA_4Gray[108]) #VSL
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self.send_command(0x2C) #VCOM Voltage
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self.send_data(self.LUT_DATA_4Gray[109]) #0x1C
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def init_4GRAY(self):
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if (epdconfig.module_init() != 0):
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return -1
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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(0x18) # use the internal temperature sensor
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self.send_data(0x80)
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self.send_command(0x0C) #set soft start
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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) # drive output control
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self.send_data((self.height-1)%256) # Y
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self.send_data((self.height-1)//256) # Y
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self.send_data(0x02)
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self.send_command(0x3C) # Border Border setting
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self.send_data(0x01)
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self.send_command(0x11) # data entry mode
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self.send_data(0x01) # X-mode x+ y-
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self.SetWindow(0, self.height-1, self.width-1, 0)
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self.SetCursor(0, 0)
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self.ReadBusy()
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self.Lut()
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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 getbuffer_4Gray(self, image):
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# logger.debug("bufsiz = ",int(self.width/8) * self.height)
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buf = [0xFF] * (int(self.width / 4) * self.height)
|
||
|
|
image_monocolor = image.convert('L')
|
||
|
|
imwidth, imheight = image_monocolor.size
|
||
|
|
pixels = image_monocolor.load()
|
||
|
|
i=0
|
||
|
|
# logger.debug("imwidth = %d, imheight = %d",imwidth,imheight)
|
||
|
|
if(imwidth == self.width and imheight == self.height):
|
||
|
|
logger.debug("Vertical")
|
||
|
|
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] == 0xC0):
|
||
|
|
pixels[x, y] = 0x80
|
||
|
|
elif (pixels[x, y] == 0x80):
|
||
|
|
pixels[x, y] = 0x40
|
||
|
|
i= i+1
|
||
|
|
if(i%4 == 0):
|
||
|
|
buf[int((x + (y * self.width))/4)] = ((pixels[x-3, y]&0xc0) | (pixels[x-2, y]&0xc0)>>2 | (pixels[x-1, y]&0xc0)>>4 | (pixels[x, y]&0xc0)>>6)
|
||
|
|
|
||
|
|
elif(imwidth == self.height and imheight == self.width):
|
||
|
|
logger.debug("Horizontal")
|
||
|
|
for x in range(imwidth):
|
||
|
|
for y in range(imheight):
|
||
|
|
newx = y
|
||
|
|
newy = self.height - x - 1
|
||
|
|
if(pixels[x, y] == 0xC0):
|
||
|
|
pixels[x, y] = 0x80
|
||
|
|
elif (pixels[x, y] == 0x80):
|
||
|
|
pixels[x, y] = 0x40
|
||
|
|
i= i+1
|
||
|
|
if(i%4 == 0):
|
||
|
|
buf[int((newx + (newy * self.width))/4)] = ((pixels[x, y-3]&0xc0) | (pixels[x, y-2]&0xc0)>>2 | (pixels[x, y-1]&0xc0)>>4 | (pixels[x, y]&0xc0)>>6)
|
||
|
|
return buf
|
||
|
|
|
||
|
|
def display(self, image):
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2(image)
|
||
|
|
|
||
|
|
self.TurnOnDisplay()
|
||
|
|
|
||
|
|
def display_Base(self, image):
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2(image)
|
||
|
|
|
||
|
|
self.send_command(0x26)
|
||
|
|
self.send_data2(image)
|
||
|
|
|
||
|
|
self.TurnOnDisplay()
|
||
|
|
|
||
|
|
def display_Fast(self, image):
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2(image)
|
||
|
|
|
||
|
|
self.TurnOnDisplay_Fast()
|
||
|
|
|
||
|
|
def display_Partial(self, Image):
|
||
|
|
|
||
|
|
# Reset
|
||
|
|
self.reset()
|
||
|
|
|
||
|
|
self.send_command(0x18) #BorderWavefrom
|
||
|
|
self.send_data(0x80)
|
||
|
|
|
||
|
|
self.send_command(0x3C) #BorderWavefrom
|
||
|
|
self.send_data(0x80)
|
||
|
|
|
||
|
|
self.send_command(0x01) # drive output control
|
||
|
|
self.send_data((self.height-1)%256) # Y
|
||
|
|
self.send_data((self.height-1)//256) # Y
|
||
|
|
|
||
|
|
self.send_command(0x11) # data entry mode
|
||
|
|
self.send_data(0x01) # X-mode x+ y-
|
||
|
|
|
||
|
|
self.SetWindow(0, self.height-1, self.width-1, 0)
|
||
|
|
|
||
|
|
self.SetCursor(0, 0)
|
||
|
|
|
||
|
|
self.send_command(0x24) #Write Black and White image to RAM
|
||
|
|
self.send_data2(Image)
|
||
|
|
|
||
|
|
self.TurnOnDisplay_Part()
|
||
|
|
|
||
|
|
def display_4Gray(self, image):
|
||
|
|
self.send_command(0x24)
|
||
|
|
for i in range(0, 48000): #5808*4 46464
|
||
|
|
temp3=0
|
||
|
|
for j in range(0, 2):
|
||
|
|
temp1 = image[i*2+j]
|
||
|
|
for k in range(0, 2):
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0):
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x01
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x00
|
||
|
|
temp3 <<= 1
|
||
|
|
|
||
|
|
temp1 <<= 2
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0):
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x01
|
||
|
|
else : #0x40
|
||
|
|
temp3 |= 0x00
|
||
|
|
if(j!=1 or k!=1):
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
self.send_data(temp3)
|
||
|
|
|
||
|
|
self.send_command(0x26)
|
||
|
|
for i in range(0, 48000): #5808*4 46464
|
||
|
|
temp3=0
|
||
|
|
for j in range(0, 2):
|
||
|
|
temp1 = image[i*2+j]
|
||
|
|
for k in range(0, 2):
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0):
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x00
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x01
|
||
|
|
temp3 <<= 1
|
||
|
|
|
||
|
|
temp1 <<= 2
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0):
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x00
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x01
|
||
|
|
if(j!=1 or k!=1):
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
self.send_data(temp3)
|
||
|
|
|
||
|
|
self.TurnOnDisplay_4GRAY()
|
||
|
|
|
||
|
|
def Clear(self):
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2([0xFF] * (int(self.width/8) * self.height))
|
||
|
|
|
||
|
|
self.send_command(0x26)
|
||
|
|
self.send_data2([0xFF] * (int(self.width/8) * self.height))
|
||
|
|
|
||
|
|
self.TurnOnDisplay()
|
||
|
|
|
||
|
|
def sleep(self):
|
||
|
|
self.send_command(0x10) # DEEP_SLEEP
|
||
|
|
self.send_data(0x01)
|
||
|
|
|
||
|
|
epdconfig.delay_ms(2000)
|
||
|
|
epdconfig.module_exit()
|
||
|
|
### END OF FILE ###
|