Initial commit

.gitignore

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+config.ini
+
+# Byte-compiled / optimized / DLL files
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+

README.md

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+# Mopidy Display for Pimoni Pirate Audio
+
+
+Shows playing track and album art from Mopidy on Pimoni Pirate Audio screen.  Supports getting data from external mopidy server.
+
+![display example](https://i.imgur.com/F0jGexo.jpg)
+
+Uses the [Narifa](https://www.fontspace.com/narifah-font-f72202) font
+
+## Controls
+A button: Volume down
+
+X button: Volume up
+
+B button: Previous Track
+
+Y button: Next Track

config.ini.example

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+[pirate-display]
+mopidy_host = 192.168.1.123
+mopidy_web_port = 6680

main.py

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+import asyncio
+import textwrap
+from asyncio.tasks import create_task
+import urllib.request
+import configparser
+import RPi.GPIO as GPIO
+
+from mopidy_asyncio_client import MopidyClient
+from PIL import Image, ImageDraw, ImageFont, ImageFilter
+from ST7789 import ST7789
+
+class PirateDisplay():
+    def __init__(self):
+        self.SPI_SPEED_MHZ = 80
+
+        self.st7789 = ST7789(
+                rotation=90,
+                port=0,
+                cs=1,
+                dc=9,
+                backlight=13,
+                spi_speed_hz=self.SPI_SPEED_MHZ * 1000 * 1000
+        )
+        self.buttons = [5,6,16,24]
+
+        config = configparser.ConfigParser()
+        config.read("config.ini")
+
+        self.mopidy_host = config["pirate-display"]["mopidy_host"]
+        self.mopidy_web_port = config["pirate-display"]["mopidy_web_port"]
+
+
+    async def connect(self):
+        """Create a connection to Mopidy"""
+        await self.setup_buttons()
+        self.loop = asyncio.get_running_loop()
+
+        async with MopidyClient(host=self.mopidy_host) as mopidy:
+            self.running_client = mopidy
+            mopidy.bind('track_playback_started', self.playback_started_handler)
+            await self.display(mopidy)
+
+            while True:
+                await asyncio.sleep(1)
+
+
+    async def setup_buttons(self):
+        """Add handlers to each button"""
+        GPIO.setmode(GPIO.BCM)
+        GPIO.setup(self.buttons, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+
+        GPIO.add_event_detect(5, GPIO.FALLING, self.handle_A, bouncetime=100)
+        GPIO.add_event_detect(6, GPIO.FALLING, self.handle_B, bouncetime=100)
+        GPIO.add_event_detect(16, GPIO.FALLING,self.handle_X, bouncetime=100)
+        GPIO.add_event_detect(24, GPIO.FALLING, self.handle_Y, bouncetime=100)
+
+
+    def handle_A(self,pin):
+        """Decrease volume"""
+        self.loop.create_task(self.update_volume('down'))
+
+
+    def handle_B(self, pin):
+        """Go to previous track"""
+        self.loop.create_task(self.running_client.playback.previous())
+
+
+    def handle_X(self,pin):
+        """Increase Volume"""
+        self.loop.create_task(self.update_volume('up'))
+
+
+    def handle_Y(self, pin):
+        """Play next track"""
+        self.loop.create_task(self.running_client.playback.next())
+
+
+    async def update_volume(self, direction):
+        """Increase or decrease the Mopidy server volume"""
+        current_volume = await self.loop.create_task(self.running_client.mixer.get_volume())
+        if direction == 'up':
+            await self.running_client.mixer.set_volume(current_volume + 15)
+        else:
+            await self.running_client.mixer.set_volume(current_volume - 15)
+
+
+    async def playback_started_handler(self, data):
+        """Update the diplay when the track changes"""
+        await self.display(self.running_client)
+
+
+    async def display(self, client):
+        """Generate the image to be displayed and send it to the device screen"""
+        current_track = await client.playback.get_current_tl_track()
+
+        album_uri = current_track["track"]["album"]["uri"]
+        album_art = await client.library.get_images([album_uri])
+
+        # Use a black background if image isn't found
+        try:
+            image_url = f"http://{self.mopidy_host}:{self.mopidy_web_port}{album_art[album_uri][0]['uri']}"
+
+            urllib.request.urlretrieve(image_url, "/tmp/album.jpeg")
+            image = Image.open("/tmp/album.jpeg")
+            image = image.filter(ImageFilter.GaussianBlur(5))
+            image = image.resize((240,240))
+        except:
+            image = Image.new("RGB", (240, 240), (0,0,0))
+
+        font = ImageFont.truetype("./fonts/Narifah-EaBWz.otf", 20)
+        draw = ImageDraw.Draw(image)
+
+        # Track name
+        song_title = textwrap.wrap(current_track["track"]["name"], 20)
+        draw.multiline_text((10,20), align="left", text= "\n".join(song_title), font=font, stroke_fill=(1,103,181), stroke_width=2)
+
+        # Artist name
+        artist = textwrap.wrap(current_track["track"]["artists"][0]["name"], 20)
+        draw.multiline_text((10,190), align="left", text="\n".join(artist), font=font, stroke_fill=(1,103,181), stroke_width=2)
+
+        image.show()
+
+        self.st7789.display(image)
+
+
+if __name__ == '__main__':
+    pirate_display = PirateDisplay()
+    try:
+        asyncio.run(pirate_display.connect())
+    except KeyboardInterrupt:
+        pirate_display.loop.stop()
+        print("Disconnected")

requirements.txt

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+pillow
+mopidy-asyncio-client

start.sh

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+#!/bin/bash
+cd /home/pi/pirate-audio-display
+exec python main.py

systemd/mopidy-display.service

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+# Put this file in /usr/lib/systemd/system/
+# Run "systemctl enable mopidy-display" to launch on startup
+[Unit]
+Description=Mopidy Display
+After=network-online.target time-sync.target sound.target avahi-daemon.service pulseaudio.service
+
+[Service]
+Environment=DISPLAY=:0
+ExecStart=/home/pi/pirate-audio-display/start.sh
+Restart=on-failure
+User=pi
+Group=pi
+
+[Install]
+WantedBy=multi-user.target