piplayer2
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tilman
+154
-11
@@ -1,31 +1,174 @@
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# piplayer2
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# http://www.tilman.de/piplayer2
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import RPi.GPIO as GPIO
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import logging
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import time
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import subprocess
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import select # see http://stackoverflow.com/a/10759061/3761783
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import os
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# Configuration
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MUSIC_BASE_DIRECTORY = "/media/audio/"
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SOUND_SCANNING = "/home/pi/piplayer2/sounds/scanning.mp3"
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SOUND_OK = "/home/pi/piplayer2/sounds/ok.mp3"
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SOUND_SCAN_FAIL = "/home/pi/piplayer2/sounds/fail.mp3"
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SOUND_PLAYBACK_ERROR = "/home/pi/piplayer2/sounds/no.mp3"
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QR_SCANNER_TIMEOUT = 3
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BUTTON_PAUSE = 0.4
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logging.basicConfig(level=logging.DEBUG, format='%(asctime)s.%(msecs)d %(levelname)s - %(message)s')
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logging.info('Initializing')
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# photo sensor on PIN 17
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(17, GPIO.IN)
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# IR LED on PIN 22
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GPIO.setup(22, GPIO.OUT)
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GPIO.output(22, GPIO.LOW)
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# LED on PIN 27
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GPIO.setup(27, GPIO.OUT)
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GPIO.output(27, GPIO.LOW)
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# Buttons on PINs 9, 10 and 11
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GPIO.setup(9, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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GPIO.setup(11, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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photo_sensor_still_active = False
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try:
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print('Start sensor test')
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logging.info('Start moc server')
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subprocess.call(["padsp", "mocp", "--server"])
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subprocess.call(["mocp", "--clear"])
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subprocess.call(["mocp", "-l", SOUND_OK])
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while True:
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time.sleep(0.25)
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if (GPIO.input(17) == GPIO.LOW):
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print('LOW')
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GPIO.output(27, GPIO.LOW)
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else:
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print('HIGH')
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time.sleep(0.01)
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if (GPIO.input(9) == False):
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logging.debug('mocp --previous')
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subprocess.call(["mocp", "--previous"])
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time.sleep(BUTTON_PAUSE)
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# TODO wait for ~0.25 s, if button is still pressed, seek instead of skipping
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if (GPIO.input(10) == False):
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logging.debug('mocp --toggle-pause')
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subprocess.call(["mocp", "--toggle-pause"])
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time.sleep(BUTTON_PAUSE)
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if (GPIO.input(11) == False):
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logging.debug('mocp --next')
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subprocess.call(["mocp", "--next"])
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time.sleep(BUTTON_PAUSE)
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# TODO wait for ~0.25 s, if button is still pressed, seek instead of skipping
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# check photo sensor
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if ((not photo_sensor_still_active) and (GPIO.input(17) == GPIO.HIGH)):
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logging.debug('Photo sensor active, activating light and camera')
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subprocess.call(["mocp", "-l", SOUND_SCANNING])
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# turn LED on
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GPIO.output(27, GPIO.HIGH)
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# scan QR code
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zbarcam = subprocess.Popen(['zbarcam', '--nodisplay', '--raw', '-Sdisable', '-Sqrcode.enable', '--prescale=320x240', '/dev/video0'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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poll_obj = select.poll()
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poll_obj.register(zbarcam.stdout, select.POLLIN)
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# wait for scan result (or timeout)
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start_time = time.time()
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poll_result = False
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while ((time.time() - start_time) < QR_SCANNER_TIMEOUT and (not poll_result)):
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poll_result = poll_obj.poll(100)
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if (poll_result):
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try:
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qr_code = zbarcam.stdout.readline().rstrip()
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qr_code = qr_code.decode("utf-8") # python3
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logging.debug("QR Code: {}".format(qr_code))
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if (not qr_code.startswith("http://")):
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# create full path
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full_path = MUSIC_BASE_DIRECTORY + qr_code
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logging.debug("Full Path {}".format(full_path))
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if (not os.path.isfile(full_path)):
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logging.debug("not a file, add as directory")
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directory = full_path
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logging.debug("Directory {}".format(directory))
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else:
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logging.debug("it's a file")
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directory = os.path.dirname(os.path.realpath(full_path))
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filename = os.path.basename(full_path)
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logging.debug("Directory {}".format(directory))
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logging.debug("Filename {}".format(filename))
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os.chdir(directory)
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else:
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logging.debug("URL, open as stream")
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stream_url = qr_code
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subprocess.call(["mocp", "--clear"])
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subprocess.call(["mocp", "--stop"])
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logging.debug("Stopped")
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# play confirmation sound
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subprocess.call(["mocp", "-l", SOUND_OK])
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if ('stream_url' in locals()):
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logging.debug("Add stream")
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subprocess.check_call(["mocp", "-a", stream_url])
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del stream_url
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elif ('filename' in locals()):
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logging.debug("Add file {}".format(filename))
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subprocess.check_call(["mocp", "-a", filename])
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del filename
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else:
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logging.debug("Add directory {}".format(directory))
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subprocess.check_call(["mocp", "-a", "."])
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# subprocess.check_call(["mocp", "-a", target, "-p"])
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logging.debug("Start playback")
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subprocess.check_call(["mocp", "-p"])
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except subprocess.CalledProcessError as e:
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logging.debug("Error starting playback, mocp returned {}".format(e.returncode))
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logging.debug(e.output)
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subprocess.call(["mocp", "-l", SOUND_PLAYBACK_ERROR])
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except FileNotFoundError as e:
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logging.debug("Could not open directory {}".format(directory))
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subprocess.call(["mocp", "-l", SOUND_PLAYBACK_ERROR])
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else:
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logging.debug('Timeout on zbarcam')
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subprocess.call(["mocp", "-l", SOUND_SCAN_FAIL])
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# consider the photo sensor to be blocked
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photo_sensor_still_active = True
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zbarcam.terminate()
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# LED off
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GPIO.output(27, GPIO.LOW)
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elif (GPIO.input(17) == GPIO.LOW):
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# the photo sensor is not blocked (anymore)
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photo_sensor_still_active = False
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# Exit when Ctrl-C is pressed
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except KeyboardInterrupt:
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print('bye')
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logging.info('Close moc server')
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subprocess.call(["mocp", "--exit"])
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logging.info('Reset GPIO configuration and close')
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GPIO.cleanup()
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@@ -58,13 +58,6 @@ sudo nano /etc/modprobe.d/alsa-base.conf
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-- HERE BE DRAGONS ------------------------------------------------------------
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Binary file not shown.
@@ -1,8 +1,10 @@
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# To Do
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## Hardware
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- PHAT DAC installieren - http://www.instructables.com/id/Multiroom-Client-With-Raspberry-Pi-ZERO-and-PHAT-D/?ALLSTEPS
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- Lautstärke über IR regeln - JBL-Fernbedienung nach Musikraketen-Anleitung auslesen
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### CNY70
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- https://www.youtube.com/watch?v=KLkNqmqXVtA - Fehler in der Schaltungsskizze! Muss NPN- statt PNP-Transistor sein.
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- http://www.vishay.com/docs/83751/cny70.pdf
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@@ -14,8 +16,12 @@
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## Scripting
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- Bugfix <prev>
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- PoC IR-LED
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## Gehäuse
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- Buttons per Acryl-Transfer beschriften? https://shop.heise.de/katalog/inhalt-333f53
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