I made a 2.9-inch screen adaptation

lib/waveshare_epd/epd2in9d.py

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+#!/usr/bin/python
+# -*- coding:utf-8 -*-
+
+# *****************************************************************************
+# * | File : epd2in9d.py
+# * | Author : Waveshare team
+# * | Function : Electronic paper driver
+# * | Info :
+# *----------------
+# * | This version: V2.0
+# * | Date : 2019-06-20
+# # | Info : python demo
+# -----------------------------------------------------------------------------
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+import logging
+from . import epdconfig
+from PIL import Image
+import RPi.GPIO as GPIO
+
+# Display resolution
+EPD_WIDTH = 128
+EPD_HEIGHT = 296
+
+class EPD:
+ def __init__(self):
+ self.reset_pin = epdconfig.RST_PIN
+ self.dc_pin = epdconfig.DC_PIN
+ self.busy_pin = epdconfig.BUSY_PIN
+ self.cs_pin = epdconfig.CS_PIN
+ self.width = EPD_WIDTH
+ self.height = EPD_HEIGHT
+
+ lut_vcom1 = [ 
+ 0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00,
+ ]
+
+ lut_ww1 = [ 
+ 0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ ]
+
+ lut_bw1 = [ 
+ 0x80, 0x19, 0x01, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ ]
+
+ lut_wb1 = [
+ 0x40, 0x19, 0x01, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ ]
+
+ lut_bb1 = [ 
+ 0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ ]
+
+ # Hardware reset
+ def reset(self):
+ epdconfig.digital_write(self.reset_pin, 1)
+ epdconfig.delay_ms(20) 
+ epdconfig.digital_write(self.reset_pin, 0)
+ epdconfig.delay_ms(5)
+ epdconfig.digital_write(self.reset_pin, 1)
+ epdconfig.delay_ms(20) 
+ epdconfig.digital_write(self.reset_pin, 0)
+ epdconfig.delay_ms(5)
+ epdconfig.digital_write(self.reset_pin, 1)
+ epdconfig.delay_ms(20) 
+ epdconfig.digital_write(self.reset_pin, 0)
+ epdconfig.delay_ms(5)
+ epdconfig.digital_write(self.reset_pin, 1)
+ epdconfig.delay_ms(20) 
+
+ def send_command(self, command):
+ epdconfig.digital_write(self.dc_pin, 0)
+ epdconfig.digital_write(self.cs_pin, 0)
+ epdconfig.spi_writebyte([command])
+ epdconfig.digital_write(self.cs_pin, 1)
+
+ def send_data(self, data):
+ epdconfig.digital_write(self.dc_pin, 1)
+ epdconfig.digital_write(self.cs_pin, 0)
+ epdconfig.spi_writebyte([data])
+ epdconfig.digital_write(self.cs_pin, 1)
+
+ def ReadBusy(self):
+ logging.debug("e-Paper busy")
+ while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
+ self.send_command(0x71)
+ epdconfig.delay_ms(10) 
+ logging.debug("e-Paper busy release")
+
+ def TurnOnDisplay(self):
+ self.send_command(0x12)
+ epdconfig.delay_ms(10)
+ self.ReadBusy()
+
+ def init(self):
+ if (epdconfig.module_init() != 0):
+ return -1
+ # EPD hardware init start
+ self.reset()
+
+ self.send_command(0x04)
+ self.ReadBusy() #waiting for the electronic paper IC to release the idle signal
+
+ self.send_command(0x00) #panel setting
+ self.send_data(0x1f) # LUT from OTP，KW-BF KWR-AF BWROTP 0f BWOTP 1f
+
+ self.send_command(0x61) #resolution setting
+ self.send_data (0x80) 
+ self.send_data (0x01) 
+ self.send_data (0x28) 
+
+ self.send_command(0X50) #VCOM AND DATA INTERVAL SETTING 
+ self.send_data(0x97) #WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
+
+ return 0
+
+ def SetPartReg(self):
+
+ self.send_command(0x01) #POWER SETTING
+ self.send_data(0x03)
+ self.send_data(0x00)
+ self.send_data(0x2b)
+ self.send_data(0x2b)
+ self.send_data(0x03)
+
+ self.send_command(0x06) #boost soft start
+ self.send_data(0x17) #A
+ self.send_data(0x17) #B
+ self.send_data(0x17) #C
+
+ self.send_command(0x04)
+ self.ReadBusy()
+
+ self.send_command(0x00) #panel setting
+ self.send_data(0xbf) #LUT from OTP，128x296
+
+ self.send_command(0x30) #PLL setting
+ self.send_data(0x3a) # 3a 100HZ 29 150Hz 39 200HZ 31 171HZ
+
+ self.send_command(0x61) #resolution setting
+ self.send_data(self.width)
+ self.send_data((self.height >> 8) & 0xff)
+ self.send_data(self.height & 0xff)
+
+ self.send_command(0x82) #vcom_DC setting
+ self.send_data(0x12)
+
+ self.send_command(0X50)
+ self.send_data(0x97)
+
+ self.send_command(0x20) # vcom
+ for count in range(0, 44):
+ self.send_data(self.lut_vcom1[count])
+ self.send_command(0x21) # ww --
+ for count in range(0, 42):
+ self.send_data(self.lut_ww1[count])
+ self.send_command(0x22) # bw r
+ for count in range(0, 42):
+ self.send_data(self.lut_bw1[count])
+ self.send_command(0x23) # wb w
+ for count in range(0, 42):
+ self.send_data(self.lut_wb1[count])
+ self.send_command(0x24) # bb b
+ for count in range(0, 42):
+ self.send_data(self.lut_bb1[count])
+
+ def getbuffer(self, image):
+ # logging.debug("bufsiz = ",int(self.width/8) * self.height)
+ buf = [0xFF] * (int(self.width/8) * self.height)
+ image_monocolor = image.convert('1')
+ imwidth, imheight = image_monocolor.size
+ pixels = image_monocolor.load()
+ # logging.debug("imwidth = %d, imheight = %d",imwidth,imheight)
+ if(imwidth == self.width and imheight == self.height):
+ logging.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] == 0:
+ buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
+ elif(imwidth == self.height and imheight == self.width):
+ logging.debug("Horizontal")
+ for y in range(imheight):
+ for x in range(imwidth):
+ newx = y
+ newy = self.height - x - 1
+ if pixels[x, y] == 0:
+ buf[int((newx + newy*self.width) / 8)] &= ~(0x80 >> (y % 8))
+ return buf
+
+ def display(self, image):
+ self.send_command(0x10)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(0x00)
+ epdconfig.delay_ms(10)
+
+ self.send_command(0x13)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(image[i])
+ epdconfig.delay_ms(10)
+
+ self.TurnOnDisplay()
+
+ def DisplayPartial(self, image):
+ self.SetPartReg()
+ self.send_command(0x91)
+ self.send_command(0x90)
+ self.send_data(0)
+ self.send_data(self.width - 1)
+
+ self.send_data(0)
+ self.send_data(0)
+ self.send_data(int(self.height / 256))
+ self.send_data(self.height % 256 - 1)
+ self.send_data(0x28)
+
+ self.send_command(0x10)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(image[i])
+ epdconfig.delay_ms(10)
+
+ self.send_command(0x13)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(~image[i])
+ epdconfig.delay_ms(10)
+
+ self.TurnOnDisplay()
+
+ def Clear(self, color):
+ self.send_command(0x10)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(0x00)
+ epdconfig.delay_ms(10)
+
+ self.send_command(0x13)
+ for i in range(0, int(self.width * self.height / 8)):
+ self.send_data(0xFF)
+ epdconfig.delay_ms(10)
+
+ self.TurnOnDisplay()
+
+ def sleep(self):
+ self.send_command(0X50)
+ self.send_data(0xf7)
+ self.send_command(0X02) #power off
+ self.send_command(0X07) #deep sleep 
+ self.send_data(0xA5)
+
+ epdconfig.delay_ms(2000)
+ epdconfig.module_exit()
+
+### END OF FILE ###
+