1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
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 ###
|
