466 lines
16 KiB
Python
466 lines
16 KiB
Python
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# *****************************************************************************
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# * | File : epd3in7.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: V1.1
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# * | Date : 2022-08-10
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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 = 280
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EPD_HEIGHT = 480
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GRAY1 = 0xff #white
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GRAY2 = 0xC0 #Close to white
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GRAY3 = 0x80 #Close to black
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GRAY4 = 0x00 #black
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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_4Gray_GC = [
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0x2A,0x06,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x28,0x06,0x14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x20,0x06,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x14,0x06,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x08,0x08,0x02,
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0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x22,0x22,0x22,0x22,0x22
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]
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lut_1Gray_GC = [
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0x2A,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x05,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x2A,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x05,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x02,0x03,0x0A,0x00,0x02,0x06,0x0A,0x05,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x22,0x22,0x22,0x22,0x22
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]
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lut_1Gray_DU = [
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x01,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x0A,0x55,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x05,0x05,0x00,0x05,0x03,0x05,0x05,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x22,0x22,0x22,0x22,0x22
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]
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lut_1Gray_A2 = [
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x22,0x22,0x22,0x22,0x22
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]
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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(200)
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epdconfig.digital_write(self.reset_pin, 0)
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epdconfig.delay_ms(5)
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epdconfig.digital_write(self.reset_pin, 1)
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epdconfig.delay_ms(200)
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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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# send a lot of data
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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_writebyte2(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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while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
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epdconfig.delay_ms(10)
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logger.debug("e-Paper busy release")
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def init(self, mode):
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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.send_command(0x12)
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epdconfig.delay_ms(300)
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self.send_command(0x46)
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self.send_data(0xF7)
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self.ReadBusy()
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self.send_command(0x47)
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self.send_data(0xF7)
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self.ReadBusy()
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self.send_command(0x01) # setting gaet number
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self.send_data(0xDF)
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self.send_data(0x01)
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self.send_data(0x00)
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self.send_command(0x03) # set gate voltage
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self.send_data(0x00)
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self.send_command(0x04) # set source voltage
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self.send_data(0x41)
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self.send_data(0xA8)
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self.send_data(0x32)
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self.send_command(0x11) # set data entry sequence
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self.send_data(0x03)
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self.send_command(0x3C) # set border
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self.send_data(0x03)
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self.send_command(0x0C) # set booster strength
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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(0xC0)
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self.send_command(0x18) # set internal sensor on
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self.send_data(0x80)
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self.send_command(0x2C) # set vcom value
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self.send_data(0x44)
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if(mode == 0): #4Gray
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self.send_command(0x37) # set display option, these setting turn on previous function
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x00)
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elif(mode == 1): #1Gray
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self.send_command(0x37) # set display option, these setting turn on previous function
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self.send_data(0x00) #can switch 1 gray or 4 gray
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self.send_data(0xFF)
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self.send_data(0xFF)
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self.send_data(0xFF)
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self.send_data(0xFF)
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self.send_data(0x4F)
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self.send_data(0xFF)
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self.send_data(0xFF)
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self.send_data(0xFF)
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self.send_data(0xFF)
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else:
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logger.debug("There is no such mode")
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self.send_command(0x44) # setting X direction start/end position of RAM
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0x17)
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self.send_data(0x01)
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self.send_command(0x45) # setting Y direction start/end position of RAM
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_data(0xDF)
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self.send_data(0x01)
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self.send_command(0x22) # Display Update Control 2
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self.send_data(0xCF)
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return 0
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def load_lut(self, lut):
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self.send_command(0x32)
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self.send_data2(lut)
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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("Vertical")
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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("Horizontal")
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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)
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image_monocolor = image.convert('L')
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imwidth, imheight = image_monocolor.size
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pixels = image_monocolor.load()
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i=0
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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("Vertical")
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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] == 0xC0):
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pixels[x, y] = 0x80
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elif (pixels[x, y] == 0x80):
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pixels[x, y] = 0x40
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i = i + 1
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if(i%4 == 0):
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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)
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elif(imwidth == self.height and imheight == self.width):
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logger.debug("Horizontal")
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for x in range(imwidth):
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for y in range(imheight):
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newx = y
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newy = imwidth - 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_4Gray(self, image):
|
||
|
|
if (image == None):
|
||
|
|
return
|
||
|
|
|
||
|
|
self.send_command(0x4E)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_command(0x4F)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
|
||
|
|
if self.width%8 == 0:
|
||
|
|
linewidth = int(self.width/8)
|
||
|
|
else:
|
||
|
|
linewidth = int(self.width/8) + 1
|
||
|
|
|
||
|
|
buf = [0x00] * self.height * linewidth
|
||
|
|
|
||
|
|
self.send_command(0x24)
|
||
|
|
for i in range(0, (int)(self.height*(self.width/8))):
|
||
|
|
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 |= 0x01 #white
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x00 #black
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x00 #gray1
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x01 #gray2
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0): #white
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x00): #black
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x00 #gray1
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x01 #gray2
|
||
|
|
if(j!=1 or k!=1):
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
buf[i] = temp3
|
||
|
|
self.send_data2(buf)
|
||
|
|
|
||
|
|
self.send_command(0x4E)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_command(0x4F)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
|
||
|
|
self.send_command(0x26)
|
||
|
|
for i in range(0, (int)(self.height*(self.width/8))):
|
||
|
|
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 |= 0x01 #white
|
||
|
|
elif(temp2 == 0x00):
|
||
|
|
temp3 |= 0x00 #black
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x01 #gray1
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x00 #gray2
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
temp2 = temp1&0xC0
|
||
|
|
if(temp2 == 0xC0): #white
|
||
|
|
temp3 |= 0x01
|
||
|
|
elif(temp2 == 0x00): #black
|
||
|
|
temp3 |= 0x00
|
||
|
|
elif(temp2 == 0x80):
|
||
|
|
temp3 |= 0x01 #gray1
|
||
|
|
else: #0x40
|
||
|
|
temp3 |= 0x00 #gray2
|
||
|
|
if(j!=1 or k!=1):
|
||
|
|
temp3 <<= 1
|
||
|
|
temp1 <<= 2
|
||
|
|
buf[i] = temp3
|
||
|
|
self.send_data2(buf)
|
||
|
|
|
||
|
|
self.load_lut(self.lut_4Gray_GC)
|
||
|
|
self.send_command(0x22)
|
||
|
|
self.send_data(0xC7)
|
||
|
|
self.send_command(0x20)
|
||
|
|
self.ReadBusy()
|
||
|
|
|
||
|
|
|
||
|
|
def display_1Gray(self, image):
|
||
|
|
if (image == None):
|
||
|
|
return
|
||
|
|
|
||
|
|
self.send_command(0x4E)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_command(0x4F)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2(image)
|
||
|
|
|
||
|
|
self.load_lut(self.lut_1Gray_A2)
|
||
|
|
self.send_command(0x20)
|
||
|
|
self.ReadBusy()
|
||
|
|
|
||
|
|
|
||
|
|
def Clear(self, color, mode):
|
||
|
|
self.send_command(0x4E)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_command(0x4F)
|
||
|
|
self.send_data(0x00)
|
||
|
|
self.send_data(0x00)
|
||
|
|
|
||
|
|
if self.width%8 == 0:
|
||
|
|
linewidth = int(self.width/8)
|
||
|
|
else:
|
||
|
|
linewidth = int(self.width/8) + 1
|
||
|
|
|
||
|
|
self.send_command(0x24)
|
||
|
|
self.send_data2([0xff] * int(self.height * linewidth))
|
||
|
|
|
||
|
|
if(mode == 0): #4Gray
|
||
|
|
self.send_command(0x26)
|
||
|
|
self.send_data2([0xff] * int(self.height * linewidth))
|
||
|
|
|
||
|
|
self.load_lut(self.lut_4Gray_GC)
|
||
|
|
self.send_command(0x22)
|
||
|
|
self.send_data(0xC7)
|
||
|
|
elif(mode == 1): #1Gray
|
||
|
|
self.load_lut(self.lut_1Gray_DU)
|
||
|
|
else:
|
||
|
|
logger.debug("There is no such mode")
|
||
|
|
|
||
|
|
self.send_command(0x20)
|
||
|
|
self.ReadBusy()
|
||
|
|
|
||
|
|
|
||
|
|
def sleep(self):
|
||
|
|
self.send_command(0X10) #deep sleep
|
||
|
|
self.send_data(0x03)
|
||
|
|
|
||
|
|
epdconfig.delay_ms(2000)
|
||
|
|
epdconfig.module_exit()
|
||
|
|
|
||
|
|
### END OF FILE ###
|
||
|
|
|