Epaper stuff

3 files changed, 405 insertions, 0 deletions

diff --git a/epaper/epd2in13.py b/epaper/epd2in13.py
new file mode 100644
index 0000000..4ad2c24
--- /dev/null
+++ b/epaper/epd2in13.py
@@ -0,0 +1,301 @@
+# //*****************************************************************************

+# * | File        :	  epd2in13.py

+# * | Author      :   Waveshare team

+# * | Function    :   Electronic paper driver

+# * | Info        :

+# *----------------

+# * |	This version:   V3.0

+# * | Date        :   2018-11-01

+# * | Info        :   python2 demo

+# * 1.Remove:

+#   digital_write(self, pin, value)

+#   digital_read(self, pin)

+#   delay_ms(self, delaytime)

+#   set_lut(self, lut)

+#   self.lut = self.lut_full_update

+# * 2.Change:

+#   display_frame -> TurnOnDisplay

+#   set_memory_area -> SetWindow

+#   set_memory_pointer -> SetCursor

+# * 3.How to use

+#   epd = epd2in13.EPD()

+#   epd.init(epd.lut_full_update)

+#   image = Image.new('1', (epd2in13.EPD_WIDTH, epd2in13.EPD_HEIGHT), 255)

+#   ...

+#   drawing ......

+#   ...

+#   epd.display(getbuffer(image))

+# ******************************************************************************//

+# 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 epdconfig

+from PIL import Image

+import RPi.GPIO as GPIO

+# import numpy as np

+

+# Display resolution

+EPD_WIDTH       = 122

+EPD_HEIGHT      = 250

+

+class EPD:

+    def __init__(self):

+        self.reset_pin = epdconfig.RST_PIN

+        self.dc_pin = epdconfig.DC_PIN

+        self.busy_pin = epdconfig.BUSY_PIN

+        self.width = EPD_WIDTH

+        self.height = EPD_HEIGHT

+    FULL_UPDATE = 0

+    PART_UPDATE = 1

+    lut_full_update= [

+        0x80,0x60,0x40,0x00,0x00,0x00,0x00,             #LUT0: BB:     VS 0 ~7

+        0x10,0x60,0x20,0x00,0x00,0x00,0x00,             #LUT1: BW:     VS 0 ~7

+        0x80,0x60,0x40,0x00,0x00,0x00,0x00,             #LUT2: WB:     VS 0 ~7

+        0x10,0x60,0x20,0x00,0x00,0x00,0x00,             #LUT3: WW:     VS 0 ~7

+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT4: VCOM:   VS 0 ~7

+

+        0x03,0x03,0x00,0x00,0x02,                       # TP0 A~D RP0

+        0x09,0x09,0x00,0x00,0x02,                       # TP1 A~D RP1

+        0x03,0x03,0x00,0x00,0x02,                       # TP2 A~D RP2

+        0x00,0x00,0x00,0x00,0x00,                       # TP3 A~D RP3

+        0x00,0x00,0x00,0x00,0x00,                       # TP4 A~D RP4

+        0x00,0x00,0x00,0x00,0x00,                       # TP5 A~D RP5

+        0x00,0x00,0x00,0x00,0x00,                       # TP6 A~D RP6

+

+        0x15,0x41,0xA8,0x32,0x30,0x0A,

+    ]

+

+    lut_partial_update = [ #20 bytes

+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT0: BB:     VS 0 ~7

+        0x80,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT1: BW:     VS 0 ~7

+        0x40,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT2: WB:     VS 0 ~7

+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT3: WW:     VS 0 ~7

+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,             #LUT4: VCOM:   VS 0 ~7

+

+        0x0A,0x00,0x00,0x00,0x00,                       # TP0 A~D RP0

+        0x00,0x00,0x00,0x00,0x00,                       # TP1 A~D RP1

+        0x00,0x00,0x00,0x00,0x00,                       # TP2 A~D RP2

+        0x00,0x00,0x00,0x00,0x00,                       # TP3 A~D RP3

+        0x00,0x00,0x00,0x00,0x00,                       # TP4 A~D RP4

+        0x00,0x00,0x00,0x00,0x00,                       # TP5 A~D RP5

+        0x00,0x00,0x00,0x00,0x00,                       # TP6 A~D RP6

+

+        0x15,0x41,0xA8,0x32,0x30,0x0A,

+    ]

+        

+    # Hardware reset

+    def reset(self):

+        epdconfig.digital_write(self.reset_pin, GPIO.HIGH)

+        epdconfig.delay_ms(200) 

+        epdconfig.digital_write(self.reset_pin, GPIO.LOW)         # module reset

+        epdconfig.delay_ms(200)

+        epdconfig.digital_write(self.reset_pin, GPIO.HIGH)

+        epdconfig.delay_ms(200)   

+

+    def send_command(self, command):

+        epdconfig.digital_write(self.dc_pin, GPIO.LOW)

+        epdconfig.spi_writebyte([command])

+

+    def send_data(self, data):

+        epdconfig.digital_write(self.dc_pin, GPIO.HIGH)

+        epdconfig.spi_writebyte([data])

+        

+    def wait_until_idle(self):

+        while(epdconfig.digital_read(self.busy_pin) == 1):      # 0: idle, 1: busy

+            epdconfig.delay_ms(100)    

+

+    def TurnOnDisplay(self):

+        self.send_command(0x22)

+        self.send_data(0xC7)

+        self.send_command(0x20)        

+        self.wait_until_idle()

+

+    def init(self, update):

+        if (epdconfig.module_init() != 0):

+            return -1

+        # EPD hardware init start

+        self.reset()

+        if(update == self.FULL_UPDATE):

+            self.wait_until_idle()

+            self.send_command(0x12) # soft reset

+            self.wait_until_idle()

+

+            self.send_command(0x74) #set analog block control

+            self.send_data(0x54)

+            self.send_command(0x7E) #set digital block control

+            self.send_data(0x3B)

+

+            self.send_command(0x01) #Driver output control

+            self.send_data(0xF9)

+            self.send_data(0x00)

+            self.send_data(0x00)

+

+            self.send_command(0x11) #data entry mode

+            self.send_data(0x01)

+

+            self.send_command(0x44) #set Ram-X address start//end position

+            self.send_data(0x00)

+            self.send_data(0x0F)    #0x0C-->(15+1)*8=128

+

+            self.send_command(0x45) #set Ram-Y address start//end position

+            self.send_data(0xF9)   #0xF9-->(249+1)=250

+            self.send_data(0x00)

+            self.send_data(0x00)

+            self.send_data(0x00)

+            

+            self.send_command(0x3C) #BorderWavefrom

+            self.send_data(0x03)

+

+            self.send_command(0x2C)     #VCOM Voltage

+            self.send_data(0x55)    #

+

+            self.send_command(0x03)

+            self.send_data(self.lut_full_update[70])

+

+            self.send_command(0x04) #

+            self.send_data(self.lut_full_update[71])

+            self.send_data(self.lut_full_update[72])

+            self.send_data(self.lut_full_update[73])

+

+            self.send_command(0x3A)     #Dummy Line

+            self.send_data(self.lut_full_update[74])

+            self.send_command(0x3B)     #Gate time

+            self.send_data(self.lut_full_update[75])

+

+            self.send_command(0x32)

+            for count in range(70):

+                self.send_data(self.lut_full_update[count])

+

+            self.send_command(0x4E)   # set RAM x address count to 0

+            self.send_data(0x00)

+            self.send_command(0x4F)   # set RAM y address count to 0X127

+            self.send_data(0xF9)

+            self.send_data(0x00)

+            self.wait_until_idle()

+        else:

+            self.send_command(0x2C)     #VCOM Voltage

+            self.send_data(0x26)

+

+            self.wait_until_idle()

+

+            self.send_command(0x32)

+            for count in range(70):

+                self.send_data(self.lut_partial_update[count])

+

+            self.send_command(0x37)

+            self.send_data(0x00)

+            self.send_data(0x00)

+            self.send_data(0x00)

+            self.send_data(0x00)

+            self.send_data(0x40)

+            self.send_data(0x00)

+            self.send_data(0x00)

+

+            self.send_command(0x22)

+            self.send_data(0xC0)

+            self.send_command(0x20)

+            self.wait_until_idle()

+

+            self.send_command(0x3C) #BorderWavefrom

+            self.send_data(0x01)

+        return 0

+

+    def getbuffer(self, image):

+        if self.width%8 == 0:

+            linewidth = self.width//8

+        else:

+            linewidth = self.width//8 + 1

+         

+        buf = [0xFF] * (linewidth * self.height)

+        image_monocolor = image.convert('1')

+        imwidth, imheight = image_monocolor.size

+        pixels = image_monocolor.load()

+        

+        if(imwidth == self.width and imheight == self.height):

+            print("Vertical")

+            for y in range(imheight):

+                for x in range(imwidth):                    

+                    if pixels[x, y] == 0:

+                        x = imwidth - x

+                        buf[x // 8 + y * linewidth] &= ~(0x80 >> (x % 8))

+        elif(imwidth == self.height and imheight == self.width):

+            print("Horizontal")

+            for y in range(imheight):

+                for x in range(imwidth):

+                    newx = y

+                    newy = self.height - x - 1

+                    if pixels[x, y] == 0:

+                        newy = imwidth - newy - 1

+                        buf[newx // 8 + newy*linewidth] &= ~(0x80 >> (y % 8))

+        return buf   

+        

+        

+    def display(self, image):

+        if self.width%8 == 0:

+            linewidth = self.width//8

+        else:

+            linewidth = self.width//8 + 1

+

+        self.send_command(0x24)

+        for j in range(0, self.height):

+            for i in range(0, linewidth):

+                self.send_data(image[i + j * linewidth])   

+        self.TurnOnDisplay()

+        

+    def displayPartial(self, image):

+        if self.width%8 == 0:

+            linewidth = self.width//8

+        else:

+            linewidth = self.width//8 + 1

+

+        self.send_command(0x24)

+        for j in range(0, self.height):

+            for i in range(0, linewidth):

+                self.send_data(image[i + j * linewidth])   

+        self.send_command(0x26)

+        for j in range(0, self.height):

+            for i in range(0, linewidth):

+                self.send_data(~image[i + j * linewidth])  

+        self.TurnOnDisplay()

+    

+    def Clear(self, color):

+        if self.width%8 == 0:

+            linewidth = self.width//8

+        else:

+            linewidth = self.width//8 + 1

+        # print(linewidth)

+        

+        self.send_command(0x24)

+        for j in range(0, self.height):

+            for i in range(0, linewidth):

+                self.send_data(color)   

+        self.TurnOnDisplay()

+

+    def sleep(self):

+        self.send_command(0x22) #POWER OFF

+        self.send_data(0xC3)

+        self.send_command(0x20)

+

+        self.send_command(0x10) #enter deep sleep

+        self.send_data(0x01)

+        epdconfig.delay_ms(100)    

+

+### END OF FILE ###

+

diff --git a/epaper/epdconfig.py b/epaper/epdconfig.py
new file mode 100644
index 0000000..78ff647
--- /dev/null
+++ b/epaper/epdconfig.py
@@ -0,0 +1,73 @@
+# /*****************************************************************************
+# * | File        :	  EPD_1in54.py
+# * | Author      :   Waveshare team
+# * | Function    :   Hardware underlying interface
+# * | Info        :
+# *----------------
+# * |	This version:   V2.0
+# * | Date        :   2018-11-01
+# * | Info        :   
+# * 1.Remove:
+#   digital_write(self, pin, value)
+#   digital_read(self, pin)
+#   delay_ms(self, delaytime)
+#   set_lut(self, lut)
+#   self.lut = self.lut_full_update
+# ******************************************************************************/
+# 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 spidev
+import RPi.GPIO as GPIO
+import time
+
+# Pin definition
+RST_PIN         = 17
+DC_PIN          = 25
+CS_PIN          = 8
+BUSY_PIN        = 24
+
+# SPI device, bus = 0, device = 0
+SPI = spidev.SpiDev(0, 0)
+
+def digital_write(pin, value):
+    GPIO.output(pin, value)
+
+def digital_read(pin):
+    return GPIO.input(BUSY_PIN)
+
+def delay_ms(delaytime):
+    time.sleep(delaytime / 1000.0)
+
+def spi_writebyte(data):
+    SPI.writebytes(data)
+
+def module_init():
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+    GPIO.setup(RST_PIN, GPIO.OUT)
+    GPIO.setup(DC_PIN, GPIO.OUT)
+    GPIO.setup(CS_PIN, GPIO.OUT)
+    GPIO.setup(BUSY_PIN, GPIO.IN)
+    SPI.max_speed_hz = 2000000
+    SPI.mode = 0b00
+    return 0;
+
+### END OF FILE ###
diff --git a/epaper/main.py b/epaper/main.py
new file mode 100644
index 0000000..b25c821
--- /dev/null
+++ b/epaper/main.py
@@ -0,0 +1,31 @@
+#!/usr/bin/python
+# -*- coding:utf-8 -*-
+
+import epd2in13
+import time
+from PIL import Image,ImageDraw,ImageFont
+import traceback
+
+font_size = 14
+
+try:
+    epd = epd2in13.EPD()
+    epd.init(epd.FULL_UPDATE)
+    epd.Clear(0xFF)
+    
+    # Drawing on the image
+    image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)  # 255: clear the frame
+    
+    draw = ImageDraw.Draw(image)    
+    font = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', font_size)
+    draw.text((0, 0), 'Guten Tag!', font=font, fill=0)
+    draw.text((0, font_size + 2), 'Marvin ist toll!', font=font, fill=0)
+    epd.display(epd.getbuffer(image))
+    # time.sleep(10)
+    # epd.Clear(0xFF)
+    epd.sleep()
+        
+except:
+    print('traceback.format_exc():\n%s',traceback.format_exc())
+    exit()
+