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| #!/usr/bin/env python | |
| from oled.device import ssd1306, sh1106 | |
| from oled.render import canvas | |
| from PIL import ImageFont | |
| from mpd import MPDClient | |
| import RPi.GPIO as GPIO | |
| import time, textwrap | |
| # Configure the GPIO pins | |
| BUTTON_PIN = 24 | |
| GPIO.setmode(GPIO.BCM) | |
| GPIO.setup(BUTTON_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) | |
| # Setup Display | |
| device = ssd1306(port=1, address=0x3C) | |
| small_font = ImageFont.truetype('FreeMono.ttf', 12) | |
| large_font = ImageFont.truetype('FreeMono.ttf', 24) | |
| # Setup MPC | |
| mpc = MPDClient() | |
| mpc.connect("localhost", 6600) | |
| num_stations = 0 | |
| current_station = 0 # index of the currebt station | |
| # Display whatever infrmation is available. With luck, the | |
| # station name and the song title | |
| def display_info(): | |
| station = mpc.currentsong() | |
| try: | |
| station_name = station['name'][0:9] | |
| except: | |
| station_name = str(current_station + 1) + ' ?' | |
| try: | |
| titles = textwrap.wrap(station['title'], 19) | |
| titles += [''] # so there are always 2 | |
| except: | |
| titles = ['', ''] | |
| display_message(station_name, titles[0], titles[1]) | |
| # Display a message on 3 lines, first line big font | |
| def display_message(top_line, line_2, line_3=''): | |
| global device | |
| with canvas(device) as draw: | |
| draw.text((0, 0), top_line, font=large_font, fill=255) | |
| draw.text((0, 40), line_2, font=small_font, fill=255) | |
| draw.text((0, 50), line_3, font=small_font, fill=255) | |
| try: | |
| mpc.play(current_station) | |
| while True: | |
| num_stations = int(mpc.status()['playlistlength']) | |
| if num_stations == 0: | |
| display_message('Error', 'add stations', '$mpc add {url}') | |
| elif GPIO.input(BUTTON_PIN) == False: | |
| current_station += 1 | |
| if current_station == num_stations: | |
| current_station = 0 | |
| mpc.play(current_station) | |
| time.sleep(0.2) # key debounce | |
| else: | |
| display_info() | |
| time.sleep(0.1) | |
| finally: | |
| GPIO.cleanup() | |
| mpc.close() | |
| mpc.disconnect() |