-
Notifications
You must be signed in to change notification settings - Fork 66
Expand file tree
/
Copy pathPico_ePaper-2.9-B.py
More file actions
196 lines (158 loc) · 6.32 KB
/
Copy pathPico_ePaper-2.9-B.py
File metadata and controls
196 lines (158 loc) · 6.32 KB
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
# *****************************************************************************
# * | File : Pico_ePaper-2.9-B.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.0
# * | Date : 2021-03-16
# # | 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.
#
from machine import Pin, SPI
import framebuf
import utime
# Display resolution
EPD_WIDTH = 128
EPD_HEIGHT = 296
RST_PIN = 12
DC_PIN = 8
CS_PIN = 9
BUSY_PIN = 13
class EPD_2in9_B:
def __init__(self):
self.reset_pin = Pin(RST_PIN, Pin.OUT)
self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
self.cs_pin = Pin(CS_PIN, Pin.OUT)
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
self.spi = SPI(1)
self.spi.init(baudrate=4000_000)
self.dc_pin = Pin(DC_PIN, Pin.OUT)
self.buffer_black = bytearray(self.height * self.width // 8)
self.buffer_red = bytearray(self.height * self.width // 8)
self.imageblack = framebuf.FrameBuffer(self.buffer_black, self.width, self.height, framebuf.MONO_HLSB)
self.imagered = framebuf.FrameBuffer(self.buffer_red, self.width, self.height, framebuf.MONO_HLSB)
self.init()
def digital_write(self, pin, value):
pin.value(value)
def digital_read(self, pin):
return pin.value()
def delay_ms(self, delaytime):
utime.sleep(delaytime / 1000.0)
def spi_writebyte(self, data):
self.spi.write(bytearray(data))
def module_exit(self):
self.digital_write(self.reset_pin, 0)
# Hardware reset
def reset(self):
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
self.digital_write(self.reset_pin, 0)
self.delay_ms(2)
self.digital_write(self.reset_pin, 1)
self.delay_ms(50)
def send_command(self, command):
self.digital_write(self.dc_pin, 0)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([command])
self.digital_write(self.cs_pin, 1)
def send_data(self, data):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi_writebyte([data])
self.digital_write(self.cs_pin, 1)
def send_data1(self, buf):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi.write(bytearray(buf))
self.digital_write(self.cs_pin, 1)
def ReadBusy(self):
print('busy')
self.send_command(0x71)
while(self.digital_read(self.busy_pin) == 0):
self.send_command(0x71)
self.delay_ms(10)
print('busy release')
def TurnOnDisplay(self):
self.send_command(0x12)
self.ReadBusy()
def init(self):
print('init')
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(0x0f) #LUT from OTP,128x296
self.send_data(0x89) #Temperature sensor, boost and other related timing settings
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(0x77) #WBmode:VBDF 17|D7 VBDW 97 VBDB 57
# WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
return 0
def display(self):
self.send_command(0x10)
self.send_data1(self.buffer_black)
self.send_command(0x13)
self.send_data1(self.buffer_red)
self.TurnOnDisplay()
def Clear(self, colorblack, colorred):
self.send_command(0x10)
self.send_data1([colorblack] * self.height * int(self.width / 8))
self.send_command(0x13)
self.send_data1([colorred] * self.height * int(self.width / 8))
self.TurnOnDisplay()
def sleep(self):
self.send_command(0X02) # power off
self.ReadBusy()
self.send_command(0X07) # deep sleep
self.send_data(0xA5)
self.delay_ms(2000)
self.module_exit()
if __name__=='__main__':
epd = EPD_2in9_B()
epd.Clear(0xff, 0xff)
epd.imageblack.fill(0xff)
epd.imagered.fill(0xff)
epd.imageblack.text("Waveshare", 0, 10, 0x00)
epd.imagered.text("ePaper-2.9-B", 0, 25, 0x00)
epd.imageblack.text("RPi Pico", 0, 40, 0x00)
epd.imagered.text("Hello World", 0, 55, 0x00)
epd.display()
epd.delay_ms(2000)
epd.imagered.vline(10, 90, 40, 0x00)
epd.imagered.vline(90, 90, 40, 0x00)
epd.imageblack.hline(10, 90, 80, 0x00)
epd.imageblack.hline(10, 130, 80, 0x00)
epd.imagered.line(10, 90, 90, 130, 0x00)
epd.imageblack.line(90, 90, 10, 130, 0x00)
epd.display()
epd.delay_ms(2000)
epd.imageblack.rect(10, 150, 40, 40, 0x00)
epd.imagered.fill_rect(60, 150, 40, 40, 0x00)
epd.display()
epd.delay_ms(2000)
epd.Clear(0xff, 0xff)
epd.delay_ms(2000)
print("sleep")
epd.sleep()