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 ###
+