-
Notifications
You must be signed in to change notification settings - Fork 5
/
Copy pathdisplay.py
646 lines (530 loc) · 20 KB
/
display.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
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
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
#===============================================
# LCD driver for the Waveshare ST7789 1.14"
# 240x134 pixel LCD
#
# Note that this is rotated 90 degrees anticlockwise,
# so the screen coordinates when drawing text are:
#
#
# 0,239 *================* 133,239
# | |
# | |
# | |
# | |
# | |
# | |
# | |
# | |
# | |
# | |
# | |
# 0,0 *================* 133,0
#
# However, due to the rotation, native framebuff
# coordinates have the x and y axis swapped.
#
# By Gary Bleads, June 2023 gary@bleads.co.uk
#===============================================
from machine import Pin,SPI,PWM
import framebuf
import time
import settings
# ===========Start of FONTS Section=========================
# Standard ASCII 5x8 font
# https://gist.github.com/tdicola/229b3eeddc12d58fb0bc724a9062aa05
FONT_HEIGHT = 8
FONT_WIDTH = 5
FONT = bytes([
0x00, 0x00, 0x00, 0x00, 0x00, # <space>
0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
0x1C, 0x3E, 0x7C, 0x3E, 0x1C,
0x18, 0x3C, 0x7E, 0x3C, 0x18,
0x1C, 0x57, 0x7D, 0x57, 0x1C,
0x1C, 0x5E, 0x7F, 0x5E, 0x1C,
0x00, 0x18, 0x3C, 0x18, 0x00,
0xFF, 0xE7, 0xC3, 0xE7, 0xFF,
0x00, 0x18, 0x24, 0x18, 0x00,
0xFF, 0xE7, 0xDB, 0xE7, 0xFF,
0x30, 0x48, 0x3A, 0x06, 0x0E,
0x26, 0x29, 0x79, 0x29, 0x26,
0x40, 0x7F, 0x05, 0x05, 0x07,
0x40, 0x7F, 0x05, 0x25, 0x3F,
0x5A, 0x3C, 0xE7, 0x3C, 0x5A,
0x7F, 0x3E, 0x1C, 0x1C, 0x08,
0x08, 0x1C, 0x1C, 0x3E, 0x7F,
0x14, 0x22, 0x7F, 0x22, 0x14,
0x5F, 0x5F, 0x00, 0x5F, 0x5F,
0x06, 0x09, 0x7F, 0x01, 0x7F,
0x00, 0x66, 0x89, 0x95, 0x6A,
0x60, 0x60, 0x60, 0x60, 0x60,
0x94, 0xA2, 0xFF, 0xA2, 0x94,
0x08, 0x04, 0x7E, 0x04, 0x08, # UP
0x10, 0x20, 0x7E, 0x20, 0x10, # Down
0x08, 0x08, 0x2A, 0x1C, 0x08, # Right
0x08, 0x1C, 0x2A, 0x08, 0x08, # Left
0x1E, 0x10, 0x10, 0x10, 0x10,
0x0C, 0x1E, 0x0C, 0x1E, 0x0C,
0x30, 0x38, 0x3E, 0x38, 0x30,
0x06, 0x0E, 0x3E, 0x0E, 0x06,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x5F, 0x00, 0x00,
0x00, 0x07, 0x00, 0x07, 0x00,
0x14, 0x7F, 0x14, 0x7F, 0x14,
0x24, 0x2A, 0x7F, 0x2A, 0x12,
0x23, 0x13, 0x08, 0x64, 0x62,
0x36, 0x49, 0x56, 0x20, 0x50,
0x00, 0x08, 0x07, 0x03, 0x00,
0x00, 0x1C, 0x22, 0x41, 0x00,
0x00, 0x41, 0x22, 0x1C, 0x00,
0x2A, 0x1C, 0x7F, 0x1C, 0x2A,
0x08, 0x08, 0x3E, 0x08, 0x08,
0x00, 0x80, 0x70, 0x30, 0x00,
0x08, 0x08, 0x08, 0x08, 0x08,
0x00, 0x00, 0x60, 0x60, 0x00,
0x20, 0x10, 0x08, 0x04, 0x02,
0x3E, 0x51, 0x49, 0x45, 0x3E,
0x00, 0x42, 0x7F, 0x40, 0x00,
0x72, 0x49, 0x49, 0x49, 0x46,
0x21, 0x41, 0x49, 0x4D, 0x33,
0x18, 0x14, 0x12, 0x7F, 0x10,
0x27, 0x45, 0x45, 0x45, 0x39,
0x3C, 0x4A, 0x49, 0x49, 0x31,
0x41, 0x21, 0x11, 0x09, 0x07,
0x36, 0x49, 0x49, 0x49, 0x36,
0x46, 0x49, 0x49, 0x29, 0x1E,
0x00, 0x00, 0x14, 0x00, 0x00,
0x00, 0x40, 0x34, 0x00, 0x00,
0x00, 0x08, 0x14, 0x22, 0x41,
0x14, 0x14, 0x14, 0x14, 0x14,
0x00, 0x41, 0x22, 0x14, 0x08,
0x02, 0x01, 0x59, 0x09, 0x06,
0x3E, 0x41, 0x5D, 0x59, 0x4E,
0x7C, 0x12, 0x11, 0x12, 0x7C, # A
0x7F, 0x49, 0x49, 0x49, 0x36,
0x3E, 0x41, 0x41, 0x41, 0x22,
0x7F, 0x41, 0x41, 0x41, 0x3E,
0x7F, 0x49, 0x49, 0x49, 0x41,
0x7F, 0x09, 0x09, 0x09, 0x01,
0x3E, 0x41, 0x41, 0x51, 0x73,
0x7F, 0x08, 0x08, 0x08, 0x7F,
0x00, 0x41, 0x7F, 0x41, 0x00,
0x20, 0x40, 0x41, 0x3F, 0x01,
0x7F, 0x08, 0x14, 0x22, 0x41,
0x7F, 0x40, 0x40, 0x40, 0x40,
0x7F, 0x02, 0x1C, 0x02, 0x7F,
0x7F, 0x04, 0x08, 0x10, 0x7F,
0x3E, 0x41, 0x41, 0x41, 0x3E,
0x7F, 0x09, 0x09, 0x09, 0x06,
0x3E, 0x41, 0x51, 0x21, 0x5E,
0x7F, 0x09, 0x19, 0x29, 0x46,
0x26, 0x49, 0x49, 0x49, 0x32,
0x03, 0x01, 0x7F, 0x01, 0x03,
0x3F, 0x40, 0x40, 0x40, 0x3F,
0x1F, 0x20, 0x40, 0x20, 0x1F,
0x3F, 0x40, 0x38, 0x40, 0x3F,
0x63, 0x14, 0x08, 0x14, 0x63,
0x03, 0x04, 0x78, 0x04, 0x03,
0x61, 0x59, 0x49, 0x4D, 0x43,
0x00, 0x7F, 0x41, 0x41, 0x41,
0x02, 0x04, 0x08, 0x10, 0x20,
0x00, 0x41, 0x41, 0x41, 0x7F,
0x04, 0x02, 0x01, 0x02, 0x04,
0x40, 0x40, 0x40, 0x40, 0x40,
0x00, 0x03, 0x07, 0x08, 0x00,
0x20, 0x54, 0x54, 0x78, 0x40,
0x7F, 0x28, 0x44, 0x44, 0x38,
0x38, 0x44, 0x44, 0x44, 0x28,
0x38, 0x44, 0x44, 0x28, 0x7F,
0x38, 0x54, 0x54, 0x54, 0x18,
0x00, 0x08, 0x7E, 0x09, 0x02,
0x18, 0xA4, 0xA4, 0x9C, 0x78,
0x7F, 0x08, 0x04, 0x04, 0x78,
0x00, 0x44, 0x7D, 0x40, 0x00,
0x20, 0x40, 0x40, 0x3D, 0x00,
0x7F, 0x10, 0x28, 0x44, 0x00,
0x00, 0x41, 0x7F, 0x40, 0x00,
0x7C, 0x04, 0x78, 0x04, 0x78,
0x7C, 0x08, 0x04, 0x04, 0x78,
0x38, 0x44, 0x44, 0x44, 0x38,
0xFC, 0x18, 0x24, 0x24, 0x18,
0x18, 0x24, 0x24, 0x18, 0xFC,
0x7C, 0x08, 0x04, 0x04, 0x08,
0x48, 0x54, 0x54, 0x54, 0x24,
0x04, 0x04, 0x3F, 0x44, 0x24,
0x3C, 0x40, 0x40, 0x20, 0x7C,
0x1C, 0x20, 0x40, 0x20, 0x1C,
0x3C, 0x40, 0x30, 0x40, 0x3C,
0x44, 0x28, 0x10, 0x28, 0x44,
0x4C, 0x90, 0x90, 0x90, 0x7C,
0x44, 0x64, 0x54, 0x4C, 0x44,
0x00, 0x08, 0x36, 0x41, 0x00,
0x00, 0x00, 0x77, 0x00, 0x00,
0x00, 0x41, 0x36, 0x08, 0x00,
0x02, 0x01, 0x02, 0x04, 0x02,
0x3C, 0x26, 0x23, 0x26, 0x3C,
0x1E, 0xA1, 0xA1, 0x61, 0x12
])
#=================================================================
#=================================================================
#=================================================================
# LCD Display Class. Based on the Waveshare 1.14" example
#=================================================================
#=================================================================
#=================================================================
class Display(framebuf.FrameBuffer):
def rgb_to_int (self,r,g,b):
r4 = (r & 0x80) >> 7
r3 = (r & 0x40) >> 6
r2 = (r & 0x20) >> 5
r1 = (r & 0x10) >> 4
r0 = (r & 0x08) >> 3
g5 = (g & 0x80) >> 7
g4 = (g & 0x40) >> 6
g3 = (g & 0x20) >> 5
g2 = (g & 0x10) >> 4
g1 = (g & 0x08) >> 3
g0 = (g & 0x04) >> 2
b4 = (b & 0x80) >> 7
b3 = (b & 0x40) >> 6
b2 = (b & 0x20) >> 5
b1 = (b & 0x10) >> 4
b0 = (b & 0x08) >> 3
rgb565 = ((g2 << 15) | (g1 << 14) | (g0 << 13) |
(b4 << 12) | (b3 << 11) | (b2 << 10) | (b1 << 9) |(b0 << 8) |
(r4 << 7) | (r3 << 6) | (r2 << 5) | (r1 << 4) | (r0 << 3) |
(g5 << 2) | (g4 << 1) | g3 )
return int(rgb565)
# Constructor
def __init__(self):
self.width = 240
self.height = 135
self.red = self.rgb_to_int(255,0,0)
self.green = self.rgb_to_int(0,255,0)
self.blue = self.rgb_to_int(0,255,0)
self.white = self.rgb_to_int(255,255,255)
self.black = self.rgb_to_int(0,0,0)
self.amber = self.rgb_to_int(255,64,0)
self.yellow= self.rgb_to_int(255,255,0)
self.cyan = self.rgb_to_int(0,255,255)
self.text_fg = self.amber
self.text_bg = self.black
self.selected_digit = 0;
self.cs1 = Pin(settings.CS1_PIN,Pin.OUT)
self.cs2 = Pin(settings.CS2_PIN,Pin.OUT)
self.cs3 = Pin(settings.CS3_PIN,Pin.OUT)
self.rst = Pin(settings.RST_PIN,Pin.OUT)
self.bl = Pin(settings.BL_PIN)
# set the LCD backlight level
self.pwm = PWM(self.bl)
self.pwm.freq(1000)
self.set_brightness(10)
# Use Hardware SPI for speed.
self.spi = SPI(1,
25_000_000,
polarity=0,
phase=0,
sck=Pin(settings.CLK_PIN),
mosi=Pin(settings.DIN_PIN),
miso=None)
# this has to be after setting up SPI as the LCDs DC pin has been wired to the SPI1 miso input
self.dc = Pin(settings.DC_PIN,Pin.OUT)
self.dc.value(1)
# Set up the frame buffer
self.buffer = bytearray(self.height * self.width * 2)
super().__init__(self.buffer, self.width, self.height, framebuf.RGB565)
# Wiggle the LCD reset line
self.reset_all()
# Reset all digits
for digit in range(0,6):
self.select_digit(digit)
self.init()
self.set_font(settings.get_setting("font"))
self.clear()
# Change the backlight level from 0 to 10
def set_brightness(self, level):
if (level < 0):
level = 0
if (level > 10):
level = 10
self.pwm.duty_u16(6550*level)
# Selects the current digit from 0 (left) to 5 (right)
def select_digit(self, num):
self.selected_digit = 5-num
# chip select one LCD
def cs_l(self):
self.cs1.value(self.selected_digit&0x01)
self.cs2.value((self.selected_digit>>1)&0x01)
self.cs3.value((self.selected_digit>>2)&0x01)
# release cip select for all LCDs
def cs_h(self):
self.cs1.value(1)
self.cs2.value(1)
self.cs3.value(1)
# Write a single command byte to the current LCD
def write_cmd(self, cmd):
self.cs_h()
self.dc(0)
self.cs_l()
self.spi.write(bytearray([cmd]))
self.cs_h()
# Write a single data byte to the current LCD
def write_data(self, buf):
self.cs_h()
self.dc(1)
self.cs_l()
self.spi.write(bytearray([buf]))
self.cs_h()
# Wiggle the LCD reset pins
def reset_all(self):
self.rst(1)
time.sleep(0.01)
self.rst(0)
time.sleep(0.01)
self.rst(1)
time.sleep(0.01)
# Initialise the currently selected LCD
def init(self):
self.write_cmd(0x36)
self.write_data(0x70)
self.write_cmd(0x3A)
self.write_data(0x05)
self.write_cmd(0xB2)
self.write_data(0x0C)
self.write_data(0x0C)
self.write_data(0x00)
self.write_data(0x33)
self.write_data(0x33)
self.write_cmd(0xB7)
self.write_data(0x35)
self.write_cmd(0xBB)
self.write_data(0x19)
self.write_cmd(0xC0)
self.write_data(0x2C)
self.write_cmd(0xC2)
self.write_data(0x01)
self.write_cmd(0xC3)
self.write_data(0x12)
self.write_cmd(0xC4)
self.write_data(0x20)
self.write_cmd(0xC6)
self.write_data(0x0F)
self.write_cmd(0xD0)
self.write_data(0xA4)
self.write_data(0xA1)
self.write_cmd(0xE0)
self.write_data(0xD0)
self.write_data(0x04)
self.write_data(0x0D)
self.write_data(0x11)
self.write_data(0x13)
self.write_data(0x2B)
self.write_data(0x3F)
self.write_data(0x54)
self.write_data(0x4C)
self.write_data(0x18)
self.write_data(0x0D)
self.write_data(0x0B)
self.write_data(0x1F)
self.write_data(0x23)
self.write_cmd(0xE1)
self.write_data(0xD0)
self.write_data(0x04)
self.write_data(0x0C)
self.write_data(0x11)
self.write_data(0x13)
self.write_data(0x2C)
self.write_data(0x3F)
self.write_data(0x44)
self.write_data(0x51)
self.write_data(0x2F)
self.write_data(0x1F)
self.write_data(0x1F)
self.write_data(0x20)
self.write_data(0x23)
self.write_cmd(0x21)
self.write_cmd(0x11)
self.write_cmd(0x29)
# Sends the entire frame buffer to the currently selected LCD
def show(self):
self.write_cmd(0x2A)
self.write_data(0x00)
self.write_data(0x28)
self.write_data(0x01)
self.write_data(0x17)
self.write_cmd(0x2B)
self.write_data(0x00)
self.write_data(0x35)
self.write_data(0x00)
self.write_data(0xBB)
self.write_cmd(0x2C)
self.cs_h()
self.dc(1)
self.cs_l()
self.spi.write(self.buffer)
self.cs_h()
# Clears all digits to black
def clear (self):
for d in range(0,6):
self.select_digit(d)
self.fill(self.black)
self.show()
# Displays a single character.
# The coordinates are for the bottom left of the character
def print_char(self, letter, left, top, col):
code = ord(letter) * 5 # 5 bytes per character
for ii in range(5):
line = FONT[code + 4 - ii]
for yy in range(8):
if (line >> yy) & 0x1:
# Draw the character 4x oversized
x0 = ii*4+109-left
x1 = x0+1
x2 = x1+1
x3 = x2+1
y0 = yy*4+205-top
y1 = y0+1
y2 = y1+1
y3 = y2+1
self.pixel(y0,x0,col)
self.pixel(y1,x0,col)
self.pixel(y2,x0,col)
self.pixel(y3,x0,col)
self.pixel(y0,x1,col)
self.pixel(y1,x1,col)
self.pixel(y2,x1,col)
self.pixel(y3,x1,col)
self.pixel(y0,x2,col)
self.pixel(y1,x2,col)
self.pixel(y2,x2,col)
self.pixel(y3,x2,col)
self.pixel(y0,x3,col)
self.pixel(y1,x3,col)
self.pixel(y2,x3,col)
self.pixel(y3,x3,col)
# Displays up to six short words of text on the current LCD, centred X and Y
def display_text(self,line):
self.fill(self.black)
words = line.split(" ")
height = len(words) * 32
top = int(self.width/2 + height/2) - 20
for word in words:
width = len(word) * 24
left = int((self.height - width)/2)-4
for letter in word:
self.print_char(letter, left, top, self.fg_colour)
left = left + 24
top = top - 40
self.show()
# Loads a number image file onto the selected LCD,
# i.e. display_digit(0) displays file "0.raw"
#
# This is based on a binary image file (RGB565) with the same dimensions as the screen
# updates the global display_buffer directly, reading the file in 1KB chunks for speed
# The .raw image files must be preprocessed before uploading to the Pico.
#
# see https://www.penguintutor.com/programming/picodisplayanimations
# for a python program to generate the files in the correct format.
def display_nixie (self, num):
if num is not None:
position = 0
blocksize = 1024
filename = str(int(num)) + ".raw"
with open (filename, "rb") as file:
chunk = file.read(blocksize)
while chunk:
self.buffer[position:position+len(chunk)] = chunk
position = position + len(chunk)
chunk = file.read(blocksize)
else:
print("Clearing digit ", self.selected_digit)
self.fill(self.black)
self.show()
# Display single digits as dots on a 5x7 matrix
def display_dots(self, digit):
# Create a small buffer and draw the pixel shape into it
pixelsize = 24
fb = framebuf.FrameBuffer(bytearray(pixelsize*pixelsize*2), pixelsize, pixelsize, framebuf.RGB565)
fb.ellipse(12, 12, 11, 11, self.fg_colour, True)
# copy the pixel buffer into the LCD frame buffer for each lit dot
self.fill(self.black)
code = (ord("0") + int(digit)) * 5 # 5 bytes per character
for ii in range(5):
line = FONT[code + 4 - ii]
for yy in range(8):
if (line >> yy) & 0x1:
# add the pixel with a little spacing
self.blit(fb, yy*(pixelsize+6)+20, ii*pixelsize+6)
self.show()
def display_7seg(self, digit):
digits = [0b1111110, # 0
0b0110000, # 1
0b1101101, # 2
0b1111001, # 3
0b0110011, # 4
0b1011011, # 5
0b0011111, # 6
0b1110000, # 7
0b1111111, # 8
0b1110011] # 9
self.fill(self.black)
segments = digits[int(digit)]
if (segments & 0x40) > 0: # segment A
self.rect(0,0,24,135, self.fg_colour, True)
if (segments & 0x20) > 0: # segment B
self.rect(0,0,120,24, self.fg_colour, True)
if (segments & 0x10) > 0: # segment C
self.rect(116,0,120,24, self.fg_colour, True)
if (segments & 0x08) > 0: # segment D
self.rect(219,0,24,135, self.fg_colour, True)
if (segments & 0x04) > 0: # segment E
self.rect(116,115,120,24, self.fg_colour, True)
if (segments & 0x02) > 0: # segment F
self.rect(0,115,120,24, self.fg_colour, True)
if (segments & 0x01) > 0: # segment G
self.rect(110,0,24,135, self.fg_colour, True)
self.show()
def set_font(self, font):
if font==1:
self.font_style = "Nixie"
self.fg_colour = self.amber
elif font==2:
self.font_style = "Dots"
self.fg_colour = self.yellow
elif font==3:
self.font_style = "Dots"
self.fg_colour = self.green
elif font==4:
self.font_style = "Dots"
self.fg_colour = self.cyan
elif font==5:
self.font_style = "Dots"
self.fg_colour = self.white
elif font==6:
self.font_style = "7seg"
self.fg_colour = self.red
elif font==7:
self.font_style = "7seg"
self.fg_colour = self.green
elif font==8:
self.font_style = "7seg"
self.fg_colour = self.cyan
elif font==9:
self.font_style = "7seg"
self.fg_colour = self.white
else:
print("Invalid font number:",font)
def display_digit(self, digit):
if self.font_style == "Nixie":
self.display_nixie(digit)
elif self.font_style == "Dots":
self.display_dots(digit)
else:
self.display_7seg(digit)
def show_colon(self, digit, visible):
self.select_digit(digit)
self.fill(self.black)
if visible:
self.ellipse(80, 70, 12, 12, self.fg_colour, True)
self.ellipse(150, 70, 12, 12, self.fg_colour, True)
self.show()