483 lines
17 KiB
Python
483 lines
17 KiB
Python
# *****************************************************************************
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# * | File : epd4in2.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: V4.0
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# * | Date : 2019-06-20
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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 inkycal.display.drivers import epdconfig
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from PIL import Image
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import RPi.GPIO as GPIO
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# Display resolution
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EPD_WIDTH = 400
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EPD_HEIGHT = 300
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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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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_vcom0 = [
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0x00, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x00, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x00, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0x00, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_ww = [
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0x40, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x40, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_bw = [
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0x40, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x40, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_wb = [
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0x80, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x80, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_bb = [
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0x80, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x80, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# ******************************gray*********************************/
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# 0~3 gray
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EPD_4IN2_4Gray_lut_vcom = [
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0x00, 0x0A, 0x00, 0x00, 0x00, 0x01,
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0x60, 0x14, 0x14, 0x00, 0x00, 0x01,
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0x00, 0x14, 0x00, 0x00, 0x00, 0x01,
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0x00, 0x13, 0x0A, 0x01, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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]
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# R21
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EPD_4IN2_4Gray_lut_ww = [
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0x40, 0x0A, 0x00, 0x00, 0x00, 0x01,
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0x90, 0x14, 0x14, 0x00, 0x00, 0x01,
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0x10, 0x14, 0x0A, 0x00, 0x00, 0x01,
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0xA0, 0x13, 0x01, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# R22H r
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EPD_4IN2_4Gray_lut_bw = [
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0x40, 0x0A, 0x00, 0x00, 0x00, 0x01,
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0x90, 0x14, 0x14, 0x00, 0x00, 0x01,
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0x00, 0x14, 0x0A, 0x00, 0x00, 0x01,
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0x99, 0x0C, 0x01, 0x03, 0x04, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# R23H w
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EPD_4IN2_4Gray_lut_wb = [
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0x40, 0x0A, 0x00, 0x00, 0x00, 0x01,
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0x90, 0x14, 0x14, 0x00, 0x00, 0x01,
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0x00, 0x14, 0x0A, 0x00, 0x00, 0x01,
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0x99, 0x0B, 0x04, 0x04, 0x01, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# R24H b
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EPD_4IN2_4Gray_lut_bb = [
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0x80, 0x0A, 0x00, 0x00, 0x00, 0x01,
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0x90, 0x14, 0x14, 0x00, 0x00, 0x01,
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0x20, 0x14, 0x0A, 0x00, 0x00, 0x01,
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0x50, 0x13, 0x01, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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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(10)
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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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def ReadBusy(self):
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self.send_command(0x71)
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while (epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
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self.send_command(0x71)
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epdconfig.delay_ms(100)
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def set_lut(self):
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self.send_command(0x20) # vcom
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for count in range(0, 44):
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self.send_data(self.lut_vcom0[count])
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self.send_command(0x21) # ww --
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for count in range(0, 42):
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self.send_data(self.lut_ww[count])
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self.send_command(0x22) # bw r
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for count in range(0, 42):
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self.send_data(self.lut_bw[count])
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self.send_command(0x23) # wb w
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for count in range(0, 42):
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self.send_data(self.lut_bb[count])
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self.send_command(0x24) # bb b
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for count in range(0, 42):
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self.send_data(self.lut_wb[count])
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def Gray_SetLut(self):
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self.send_command(0x20) # vcom
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_vcom[count])
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self.send_command(0x21) # red not use
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_ww[count])
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self.send_command(0x22) # bw r
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_bw[count])
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self.send_command(0x23) # wb w
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_wb[count])
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self.send_command(0x24) # bb b
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_bb[count])
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self.send_command(0x25) # vcom
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for count in range(0, 42):
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self.send_data(self.EPD_4IN2_4Gray_lut_ww[count])
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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.send_command(0x01) # POWER SETTING
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self.send_data(0x03) # VDS_EN, VDG_EN
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self.send_data(0x00) # VCOM_HV, VGHL_LV[1], VGHL_LV[0]
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self.send_data(0x2b) # VDH
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self.send_data(0x2b) # VDL
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self.send_command(0x06) # boost soft start
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self.send_data(0x17)
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self.send_data(0x17)
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self.send_data(0x17)
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self.send_command(0x04) # POWER_ON
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self.ReadBusy()
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self.send_command(0x00) # panel setting
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self.send_data(0xbf) # KW-BF KWR-AF BWROTP 0f
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self.send_data(0x0d)
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self.send_command(0x30) # PLL setting
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self.send_data(0x3c) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ
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self.send_command(0x61) # resolution setting
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self.send_data(0x01)
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self.send_data(0x90) # 128
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self.send_data(0x01)
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self.send_data(0x2c)
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self.send_command(0x82) # vcom_DC setting
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self.send_data(0x28)
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self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING
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self.send_data(
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0x97) # 97white border 77black border VBDF 17|D7 VBDW 97 VBDB 57 VBDF F7 VBDW 77 VBDB 37 VBDR B7
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self.set_lut()
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# EPD hardware init end
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return 0
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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.send_command(0x01) # POWER SETTING
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self.send_data(0x03)
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self.send_data(0x00) # VGH=20V,VGL=-20V
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self.send_data(0x2b) # VDH=15V
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self.send_data(0x2b) # VDL=-15V
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self.send_data(0x13)
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self.send_command(0x06) # booster soft start
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self.send_data(0x17) # A
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self.send_data(0x17) # B
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self.send_data(0x17) # C
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self.send_command(0x04)
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self.ReadBusy()
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self.send_command(0x00) # panel setting
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self.send_data(0x3f) # KW-3f KWR-2F BWROTP 0f BWOTP 1f
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self.send_command(0x30) # PLL setting
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self.send_data(0x3c) # 100hz
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self.send_command(0x61) # resolution setting
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self.send_data(0x01) # 400
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self.send_data(0x90)
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self.send_data(0x01) # 300
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self.send_data(0x2c)
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self.send_command(0x82) # vcom_DC setting
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self.send_data(0x12)
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self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING
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self.send_data(0x97)
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def getbuffer(self, image):
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# logging.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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# logging.debug("imwidth = %d, imheight = %d",imwidth,imheight)
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if (imwidth == self.width and imheight == self.height):
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logging.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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logging.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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# logging.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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# logging.debug("imwidth = %d, imheight = %d",imwidth,imheight)
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if (imwidth == self.width and imheight == self.height):
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logging.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)] = (
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(pixels[x - 3, y] & 0xc0) | (pixels[x - 2, y] & 0xc0) >> 2 | (
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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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logging.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 = x
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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((newx + (newy * self.width)) / 4)] = (
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(pixels[x, y - 3] & 0xc0) | (pixels[x, y - 2] & 0xc0) >> 2 | (
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pixels[x, y - 1] & 0xc0) >> 4 | (pixels[x, y] & 0xc0) >> 6)
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return buf
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def display(self, image):
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self.send_command(0x10)
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for i in range(0, int(self.width * self.height / 8)):
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self.send_data(0xFF)
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self.send_command(0x13)
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for i in range(0, int(self.width * self.height / 8)):
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self.send_data(image[i])
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self.send_command(0x12)
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self.ReadBusy()
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def display_4Gray(self, image):
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self.send_command(0x10)
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for i in range(0, EPD_WIDTH * EPD_HEIGHT / 8): # EPD_WIDTH * EPD_HEIGHT / 4
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temp3 = 0
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for j in range(0, 2):
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temp1 = image[i * 2 + j]
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for k in range(0, 2):
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temp2 = temp1 & 0xC0
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if (temp2 == 0xC0):
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temp3 |= 0x01 # white
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elif (temp2 == 0x00):
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temp3 |= 0x00 # black
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elif (temp2 == 0x80):
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temp3 |= 0x01 # gray1
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else: # 0x40
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temp3 |= 0x00 # gray2
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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
|
|
self.send_data(temp3)
|
|
|
|
self.send_command(0x13)
|
|
|
|
for i in range(0, EPD_WIDTH * EPD_HEIGHT / 8): # 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 |= 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
|
|
self.send_data(temp3)
|
|
|
|
self.Gray_SetLut()
|
|
self.send_command(0x12)
|
|
epdconfig.delay_ms(200)
|
|
self.ReadBusy()
|
|
# pass
|
|
|
|
def Clear(self):
|
|
self.send_command(0x10)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(0xFF)
|
|
|
|
self.send_command(0x13)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(0xFF)
|
|
|
|
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 ###
|