1  """Use custom characters to display Nyan cat"""
 2  import time
 3  import board
 4  import digitalio
 5  import adafruit_character_lcd.character_lcd as characterlcd
 6  
 7  # Modify this if you have a different sized character LCD
 8  lcd_columns = 16
 9  lcd_rows = 2
10  
11  # Metro M0/M4 Pin Config:
12  lcd_rs = digitalio.DigitalInOut(board.D7)
13  lcd_en = digitalio.DigitalInOut(board.D8)
14  lcd_d7 = digitalio.DigitalInOut(board.D12)
15  lcd_d6 = digitalio.DigitalInOut(board.D11)
16  lcd_d5 = digitalio.DigitalInOut(board.D10)
17  lcd_d4 = digitalio.DigitalInOut(board.D9)
18  lcd_backlight = digitalio.DigitalInOut(board.D13)
19  
20  # Initialise the LCD class
21  lcd = characterlcd.Character_LCD_Mono(
22      lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6, lcd_d7, lcd_columns, lcd_rows, lcd_backlight
23  )
24  
25  head = [31, 17, 27, 17, 17, 21, 17, 31]
26  
27  top_body = [31, 0, 31, 0, 18, 8, 2, 8]
28  top_left_corner_body = [31, 16, 16, 17, 22, 20, 20, 20]
29  top_right_corner_body = [31, 1, 1, 17, 13, 5, 5, 5]
30  
31  # these three chars will be the above three reversed with a few minor changes to
32  # fit feet into the bottom
33  bot_body = []
34  bot_left_corner_body = []
35  bot_right_corner_body = []
36  
37  tail_neutral = [0, 0, 0, 0, 31, 31, 0, 0]
38  tail_up = [0, 8, 12, 6, 3, 1, 0, 0]
39  
40  for i in range(7, -1, -1):
41      bot_body.append(top_body[i])
42      bot_left_corner_body.append(top_left_corner_body[i])
43      bot_right_corner_body.append(top_right_corner_body[i])
44  
45  # adding feet and making space for them
46  
47  bot_body[6] = 31
48  bot_body[5] = 0
49  bot_body[4] = 31
50  bot_body[7] = 24
51  bot_left_corner_body[7] = 0
52  bot_left_corner_body[6] = 31
53  bot_left_corner_body[7] = 28
54  bot_right_corner_body[7] = 0
55  bot_right_corner_body[6] = 31
56  
57  # bottom body with feet forward
58  bot_body2 = bot_body[:-1] + [3]
59  
60  
61  rainbow = [0, 0, 6, 25, 11, 29, 27, 12]
62  rainbow2 = [0, 0, 6, 31, 13, 5, 23, 12]
63  
64  lcd.create_char(0, top_body)
65  lcd.create_char(1, top_left_corner_body)
66  lcd.create_char(2, rainbow)
67  lcd.create_char(3, bot_left_corner_body)
68  lcd.create_char(4, bot_body)
69  lcd.create_char(5, bot_right_corner_body)
70  lcd.create_char(6, head)
71  lcd.create_char(7, tail_neutral)
72  
73  lcd.clear()
74  
75  lcd.move_right()
76  lcd.message = (
77      "\x02\x02\x02\x02\x01\x00\x00\x00\x06\n\x02\x02\x02\x07\x03\x04\x04\x04\x05"
78  )
79  
80  lcd.backlight = True
81  
82  while True:
83      lcd.create_char(4, bot_body2)
84      lcd.create_char(7, tail_up)
85      lcd.create_char(2, rainbow2)
86      lcd.move_right()
87      time.sleep(0.4)
88      lcd.create_char(4, bot_body)
89      lcd.create_char(7, tail_neutral)
90      lcd.create_char(2, rainbow)
91      lcd.move_left()
92      time.sleep(0.4)