/
epd1in54b.py
222 lines (193 loc) · 8.44 KB
/
epd1in54b.py
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
# *****************************************************************************
# * | File : epd1in54b.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V4.0
# * | 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
# Display resolution
EPD_WIDTH = 200
EPD_HEIGHT = 200
logger = logging.getLogger(__name__)
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_vcom0 = [0x0E, 0x14, 0x01, 0x0A, 0x06, 0x04, 0x0A, 0x0A, 0x0F, 0x03, 0x03, 0x0C, 0x06, 0x0A, 0x00]
lut_w = [0x0E, 0x14, 0x01, 0x0A, 0x46, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x86, 0x0A, 0x04]
lut_b = [0x0E, 0x14, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x4A, 0x04]
lut_g1 = [0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04]
lut_g2 = [0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04]
lut_vcom1 = [0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
lut_red0 = [0x83, 0x5D, 0x01, 0x81, 0x48, 0x23, 0x77, 0x77, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
lut_red1 = [0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
epdconfig.digital_write(self.reset_pin, 0) # module reset
epdconfig.delay_ms(5)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
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):
logger.debug("e-Paper busy")
while(epdconfig.digital_read(self.busy_pin) == 0):
epdconfig.delay_ms(100)
logger.debug("e-Paper busy release")
def set_lut_bw(self):
self.send_command(0x20) # vcom
for count in range(0, 15):
self.send_data(self.lut_vcom0[count])
self.send_command(0x21) # ww --
for count in range(0, 15):
self.send_data(self.lut_w[count])
self.send_command(0x22) # bw r
for count in range(0, 15):
self.send_data(self.lut_b[count])
self.send_command(0x23) # wb w
for count in range(0, 15):
self.send_data(self.lut_g1[count])
self.send_command(0x24) # bb b
for count in range(0, 15):
self.send_data(self.lut_g2[count])
def set_lut_red(self):
self.send_command(0x25)
for count in range(0, 15):
self.send_data(self.lut_vcom1[count])
self.send_command(0x26)
for count in range(0, 15):
self.send_data(self.lut_red0[count])
self.send_command(0x27)
for count in range(0, 15):
self.send_data(self.lut_red1[count])
def init(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.send_command(0x01) # POWER_SETTING
self.send_data(0x07)
self.send_data(0x00)
self.send_data(0x08)
self.send_data(0x00)
self.send_command(0x06) # BOOSTER_SOFT_START
self.send_data(0x07)
self.send_data(0x07)
self.send_data(0x07)
self.send_command(0x04) # POWER_ON
self.ReadBusy()
self.send_command(0X00) # PANEL_SETTING
self.send_data(0xCF)
self.send_command(0X50) # VCOM_AND_DATA_INTERVAL_SETTING
self.send_data(0x17)
self.send_command(0x30) # PLL_CONTROL
self.send_data(0x39)
self.send_command(0x61) # TCON_RESOLUTION set x and y
self.send_data(0xC8)
self.send_data(0x00)
self.send_data(0xC8)
self.send_command(0x82) # VCM_DC_SETTING_REGISTER
self.send_data(0x0E)
self.set_lut_bw()
self.set_lut_red()
return 0
def getbuffer(self, image):
buf = [0xFF] * int(self.width * self.height / 8)
# Set buffer to value of Python Imaging Library image.
# Image must be in mode 1.
image_monocolor = image.convert('1')
imwidth, imheight = image_monocolor.size
if imwidth != self.width or imheight != self.height:
raise ValueError('Image must be same dimensions as display \
({0}x{1}).' .format(self.width, self.height))
pixels = image_monocolor.load()
for y in range(self.height):
for x in range(self.width):
# 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))
return buf
def display(self, blackimage, redimage):
# send black data
if (blackimage != None):
self.send_command(0x10) # DATA_START_TRANSMISSION_1
for i in range(0, int(self.width * self.height / 8)):
temp = 0x00
for bit in range(0, 4):
if (blackimage[i] & (0x80 >> bit) != 0):
temp |= 0xC0 >> (bit * 2)
self.send_data(temp)
temp = 0x00
for bit in range(4, 8):
if (blackimage[i] & (0x80 >> bit) != 0):
temp |= 0xC0 >> ((bit - 4) * 2)
self.send_data(temp)
# send red data
if (redimage != None):
self.send_command(0x13) # DATA_START_TRANSMISSION_2
for i in range(0, int(self.width * self.height / 8)):
self.send_data(redimage[i])
self.send_command(0x12) # DISPLAY_REFRESH
self.ReadBusy()
def Clear(self):
self.send_command(0x10) # DATA_START_TRANSMISSION_1
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0xFF)
self.send_data(0xFF)
self.send_command(0x13) # DATA_START_TRANSMISSION_2
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0xFF)
self.send_command(0x12) # DISPLAY_REFRESH
self.ReadBusy()
def sleep(self):
self.send_command(0x50) # VCOM_AND_DATA_INTERVAL_SETTING
self.send_data(0x17)
self.send_command(0x82) # to solve Vcom drop
self.send_data(0x00)
self.send_command(0x01) # power setting
self.send_data(0x02) # gate switch to external
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.ReadBusy()
self.send_command(0x02) # power off
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###