Used to display currently playing audio on RGB LCD from moode audio

rgb_currentsong.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
import re
import time
import sys
import board
import busio
import adafruit_character_lcd.character_lcd_rgb_i2c as character_lcd
lcd_columns = 16
lcd_rows = 2

# init I2C bus

i2c = busio.I2C(board.SCL, board.SDA)

# init the LCD class

lcd = character_lcd.Character_LCD_RGB_I2C(i2c, lcd_columns, lcd_rows)

lcd.color = [60, 0, 0]

PLAYING_STATE = 'play'
STOPPED_STATE = 'stop'
MOODE_FILE = '/var/local/www/currentsong.txt'

# Delay this long to allow file to populate

READ_DELAY = 2

while True:
    try:
        with open(MOODE_FILE) as f:
            file = f.read()

            # print(file)

            artist = re.search('(?<=artist=).*\S', file)
            song = re.search('(?<=title=).*\S', file)
            state = re.search('(?<=state=).*\S', file)

        # Check if state exists and is play

        if state and state.group() == PLAYING_STATE:

            # Check if artist and song exists and write to lcd.

            if artist and song:
                display_txt = artist.group() + '\n' + song.group()
                #print(display_txt)
                if len(display_txt)>32:
                    lcd.message = display_txt
                    for i in range(len(lcd.message)):

                        time.sleep(0.5)

                        lcd.move_left()
                else:
                   lcd.message = display_txt
            else:

                # lcd.clear()
                # Sleep to give time for file to populate.  If timeout is reached lcd is cleared and will try again
                # next loop pass

                time.sleep(READ_DELAY)
                if artist and song:
                    pass
                else:
                    print('artist or song missing')
        elif state and state.group() == STOPPED_STATE:

        # Check if state exists and if is stop clear lcd.

            lcd.clear()
            print('clear lcd')
        else:

            # Sleep to give time for file to populate.  If timeout is reached lcd is cleared and will try again
            # next loop pass

            time.sleep(READ_DELAY)
            if state:
                pass
            else:
                print('state missing')
                lcd.clear()
    except:

        # If script errors out write to screen.

        lcd.message = 'Error in script!'
        print('Error in script!')
    time.sleep(.1)