Update requirements and add MQTT manager

config.example.json

@@ -0,0 +1,68 @@
+{
+    "matrix": {
+        "width": 64,
+        "height": 32,
+        "brightness": 100
+    },
+    "display": {
+        "enabled": true,
+        "display_durations": {
+            "clock": 15,
+            "weather": 15,
+            "stocks": 45,
+            "calendar": 30,
+            "stock_news": 30
+        }
+    },
+    "clock": {
+        "enabled": true,
+        "format": "%I:%M:%S %p"
+    },
+    "weather": {
+        "enabled": true,
+        "api_key": "your_openweather_api_key",
+        "update_interval": 300,
+        "units": "imperial"
+    },
+    "location": {
+        "lat": 0.0,
+        "lon": 0.0,
+        "city": "Your City"
+    },
+    "stocks": {
+        "enabled": true,
+        "symbols": ["AAPL", "GOOGL", "MSFT"],
+        "update_interval": 300
+    },
+    "stock_news": {
+        "enabled": true,
+        "symbols": ["AAPL", "GOOGL", "MSFT"],
+        "update_interval": 900,
+        "max_headlines": 3
+    },
+    "calendar": {
+        "enabled": true,
+        "credentials_file": "credentials.json",
+        "token_file": "token.json",
+        "update_interval": 300,
+        "max_events": 3
+    },
+    "mqtt": {
+        "broker": "homeassistant.local",
+        "port": 1883,
+        "username": "your_mqtt_username",
+        "password": "your_mqtt_password",
+        "client_id": "led_matrix",
+        "use_tls": false,
+        "topics": [
+            "homeassistant/sensor/#",
+            "homeassistant/binary_sensor/#",
+            "homeassistant/switch/#"
+        ],
+        "display": {
+            "scroll_speed": 0.1,
+            "message_timeout": 60,
+            "max_messages": 5
+        }
+    }
+} 

credentials.json

@@ -0,0 +1 @@
+{"installed":{"client_id":"440006573525-kg1idpl6fj3i17eg6mlucaj10uk4341v.apps.googleusercontent.com","project_id":"homeassistant-309617","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"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"}}

requirements.txt

@@ -1,4 +1,3 @@
-rpi-rgb-led-matrix==1.0.0
 Pillow==10.0.0
 pytz==2023.3
 requests==2.31.0

src/mqtt_manager.py

@@ -0,0 +1,199 @@
+import paho.mqtt.client as mqtt
+import json
+from typing import Dict, Any, Optional, List, Callable
+from queue import Queue
+import threading
+import time
+
+class MQTTManager:
+    def __init__(self, config: Dict[str, Any], display_manager):
+        """Initialize MQTT Manager with configuration."""
+        self.config = config.get('mqtt', {})
+        self.display_manager = display_manager
+        self.client = None
+        self.connected = False
+        self.message_queue = Queue()
+        self.subscriptions = {}
+        self.last_update = 0
+        self.current_messages = {}
+        
+        # MQTT Configuration
+        self.broker = self.config.get('broker', 'localhost')
+        self.port = self.config.get('port', 1883)
+        self.username = self.config.get('username')
+        self.password = self.config.get('password')
+        self.client_id = self.config.get('client_id', 'led_matrix')
+        
+        # Display Configuration
+        self.scroll_speed = self.config.get('scroll_speed', 0.1)
+        self.message_timeout = self.config.get('message_timeout', 60)
+        self.max_messages = self.config.get('max_messages', 5)
+        
+        # Initialize MQTT client
+        self._setup_mqtt()
+        
+        # Start message processing thread
+        self.running = True
+        self.process_thread = threading.Thread(target=self._process_messages)
+        self.process_thread.daemon = True
+        self.process_thread.start()
+
+    def _setup_mqtt(self):
+        """Setup MQTT client and callbacks."""
+        self.client = mqtt.Client(client_id=self.client_id)
+        
+        # Set up callbacks
+        self.client.on_connect = self._on_connect
+        self.client.on_message = self._on_message
+        self.client.on_disconnect = self._on_disconnect
+        
+        # Set up authentication if configured
+        if self.username and self.password:
+            self.client.username_pw_set(self.username, self.password)
+        
+        # Set up TLS if configured
+        if self.config.get('use_tls', False):
+            self.client.tls_set()
+    
+    def _on_connect(self, client, userdata, flags, rc):
+        """Callback for when the client connects to the broker."""
+        if rc == 0:
+            print("Connected to MQTT broker")
+            self.connected = True
+            # Subscribe to configured topics
+            for topic in self.config.get('topics', []):
+                self.subscribe(topic)
+        else:
+            print(f"Failed to connect to MQTT broker with code: {rc}")
+    
+    def _on_message(self, client, userdata, message):
+        """Callback for when a message is received."""
+        try:
+            payload = message.payload.decode()
+            try:
+                # Try to parse as JSON
+                payload = json.loads(payload)
+            except json.JSONDecodeError:
+                # If not JSON, use as plain text
+                pass
+            
+            self.message_queue.put({
+                'topic': message.topic,
+                'payload': payload,
+                'timestamp': time.time()
+            })
+        except Exception as e:
+            print(f"Error processing message: {e}")
+    
+    def _on_disconnect(self, client, userdata, rc):
+        """Callback for when the client disconnects from the broker."""
+        print("Disconnected from MQTT broker")
+        self.connected = False
+        if rc != 0:
+            print(f"Unexpected disconnection. Attempting to reconnect...")
+            self._reconnect()
+    
+    def _reconnect(self):
+        """Attempt to reconnect to the MQTT broker."""
+        while not self.connected and self.running:
+            try:
+                self.client.connect(self.broker, self.port)
+                self.client.loop_start()
+                break
+            except Exception as e:
+                print(f"Reconnection failed: {e}")
+                time.sleep(5)
+    
+    def start(self):
+        """Start the MQTT client connection."""
+        try:
+            self.client.connect(self.broker, self.port)
+            self.client.loop_start()
+        except Exception as e:
+            print(f"Failed to connect to MQTT broker: {e}")
+            self._reconnect()
+    
+    def stop(self):
+        """Stop the MQTT client and message processing."""
+        self.running = False
+        if self.client:
+            self.client.loop_stop()
+            self.client.disconnect()
+    
+    def subscribe(self, topic: str, qos: int = 0):
+        """Subscribe to an MQTT topic."""
+        if self.client:
+            self.client.subscribe(topic, qos)
+            print(f"Subscribed to topic: {topic}")
+    
+    def _process_messages(self):
+        """Process messages from the queue and update display."""
+        while self.running:
+            try:
+                # Remove expired messages
+                current_time = time.time()
+                self.current_messages = {
+                    topic: msg for topic, msg in self.current_messages.items()
+                    if current_time - msg['timestamp'] < self.message_timeout
+                }
+                
+                # Process new messages
+                while not self.message_queue.empty():
+                    message = self.message_queue.get()
+                    self.current_messages[message['topic']] = message
+                
+                # Update display if we have messages
+                if self.current_messages:
+                    self._update_display()
+                
+                time.sleep(0.1)
+            except Exception as e:
+                print(f"Error in message processing: {e}")
+    
+    def _update_display(self):
+        """Update the LED matrix display with current messages."""
+        try:
+            # Create a new image for drawing
+            image = Image.new('RGB', (self.display_manager.matrix.width, self.display_manager.matrix.height))
+            draw = ImageDraw.Draw(image)
+            
+            # Sort messages by timestamp (newest first)
+            messages = sorted(
+                self.current_messages.values(),
+                key=lambda x: x['timestamp'],
+                reverse=True
+            )[:self.max_messages]
+            
+            # Calculate display layout
+            section_height = self.display_manager.matrix.height // min(len(messages), self.max_messages)
+            
+            # Draw each message
+            for i, message in enumerate(messages):
+                y = i * section_height
+                
+                # Format message based on type
+                if isinstance(message['payload'], dict):
+                    display_text = self._format_dict_message(message['payload'])
+                else:
+                    display_text = str(message['payload'])
+                
+                # Draw message text
+                draw.text((1, y + 1), display_text,
+                         font=self.display_manager.small_font,
+                         fill=(255, 255, 255))
+            
+            # Update the display
+            self.display_manager.image = image
+            self.display_manager.update_display()
+            
+        except Exception as e:
+            print(f"Error updating display: {e}")
+    
+    def _format_dict_message(self, payload: Dict[str, Any]) -> str:
+        """Format a dictionary payload for display."""
+        # Handle Home Assistant state messages
+        if 'state' in payload:
+            return f"{payload.get('state', '')}"
+        
+        # Handle other dictionary messages
+        return json.dumps(payload, separators=(',', ':'))