157 lines
4.1 KiB
Python
157 lines
4.1 KiB
Python
import signal
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import RPi.GPIO as GPIO
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from SoundslabDisplay import SoundslabDisplay
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import time
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import musicpd
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from math import floor
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# connect to mpd
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player_client = musicpd.MPDClient()
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player_client.connect()
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# initialize connection to display
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display = SoundslabDisplay(player_client)
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# The buttons on Pirate Audio are connected to pins 5, 6, 16 and 24
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# Boards prior to 23 January 2020 used 5, 6, 16 and 20
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# try changing 24 to 20 if your Y button doesn't work.
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BUTTONS = [5, 6, 16, 24, 17, 27, 22, 23, 20]
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# These correspond to buttons A, B, X and Y then the five-way switch positions
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LABELS = ['NW', 'SW', 'NE', 'SE', 'UP', 'SELECT', 'LF', 'DN', 'RT']
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# Set up RPi.GPIO with the "BCM" numbering scheme
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GPIO.setmode(GPIO.BCM)
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# Buttons connect to ground when pressed, so we should set them up
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# with a "PULL UP", which weakly pulls the input signal to 3.3V.
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GPIO.setup(BUTTONS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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# a temporary place to store menu state
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show_menu = False
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# some button handlers
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def NE():
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# play/pause toggle
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global player_client
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status = player_client.status()
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if status['state'] == "play":
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print("pausing")
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player_client.pause(1)
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elif status['state'] == "pause":
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print("resuming")
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player_client.pause(0)
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else: # state == "stop"
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print("playing")
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player_client.play()
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def SW():
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# previous track
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global player_client
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status = player_client.status()
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if float(status['elapsed']) > 5.0:
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# restart track
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print("restart current track")
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player_client.seekcur(0)
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else:
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# go to previous track
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print("previous track")
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player_client.previous()
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def NW():
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# open menu
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print("toggling menu")
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if show_menu is True:
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show_menu = False
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else:
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show_menu = True
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def SE():
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# next track
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global player_client
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print("next track")
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player_client.next()
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def UP():
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# volume up 10%
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global player_client
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print("vol up")
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status = player_client.status()
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if int(status['volume']) < 100:
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player_client.setvol(int(status['volume']) + 10)
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def DN():
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# volume down 10%
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global player_client
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print("vol down")
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status = player_client.status()
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if int(status['volume']) > 0:
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player_client.setvol(int(status['volume']) - 10)
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def LF():
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# seek back 10s
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global player_client
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print("seek -10s")
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status = player_client.status()
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player_client.seekcur(floor(float(status['elapsed']) - 10.0))
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def RT():
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# seek forward 10s
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global player_client
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print("seek +10s")
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status = player_client.status()
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player_client.seekcur(floor(float(status['elapsed']) + 10.0))
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def SELECT():
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# display lock/unlock
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display.toggleDisplayOnOff()
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# This is a dictionary of the combination of pins and labels
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LABELLED_BUTTONS = {
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5: NW,
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6: SW,
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16: NE,
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24: SE,
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17: UP,
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27: SELECT,
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22: LF,
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23: DN,
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20: RT
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}
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# "handle_button" will be called every time a button is pressed
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# It receives one argument: the associated input pin.
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def handle_button(pin):
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label = LABELS[BUTTONS.index(pin)]
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print("Button press detected on pin: {} label: {}".format(pin, label))
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func = LABELLED_BUTTONS.get(pin)
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func()
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# Loop through out buttons and attach the "handle_button" function to each
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# We're watching the "FALLING" edge (transition from 3.3V to Ground) and
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# picking a generous bouncetime of 100ms to smooth out button presses.
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for pin in BUTTONS:
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GPIO.add_event_detect(pin, GPIO.FALLING, handle_button, bouncetime=100)
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while True:
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if show_menu is True:
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# test menu
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display.updateMenu(
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[
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{output: "▲"},
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{output: "Toggle repeat", selected=True},
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{output: "Toggle shuffle"},
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{output: "View queue"},
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{output: "▼"}
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]
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)
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# test album art
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display.updateAlbumArt()
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# test setting up the overlay
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display.updateOverlay()
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# test pushing the update to the display
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display.updateDisplay()
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# wait before continuing
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time.sleep(1.0)
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