usda-vision/notebooks/mqtt test.ipynb

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   "source": [
    "import paho.mqtt.client as mqtt\n",
    "import time\n"
   ]
  },
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     "text": [
      "/tmp/ipykernel_2342/243927247.py:34: DeprecationWarning: Callback API version 1 is deprecated, update to latest version\n",
      "  client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION1) # Use VERSION1 for broader compatibility\n"
     ]
    },
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     "name": "stdout",
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     "text": [
      "Connecting to MQTT broker at 192.168.1.110:1883...\n",
      "Successfully connected to MQTT Broker!\n",
      "Subscribed to topic: 'vision/vibratory_conveyor/state'\n",
      "Listening for messages... (Press Ctrl+C to stop)\n",
      "\n",
      "--- MQTT MESSAGE RECEIVED! ---\n",
      "  Topic: vision/vibratory_conveyor/state\n",
      "  Payload: on\n",
      "  Time: 2025-07-25 21:03:21\n",
      "------------------------------\n",
      "\n",
      "\n",
      "--- MQTT MESSAGE RECEIVED! ---\n",
      "  Topic: vision/vibratory_conveyor/state\n",
      "  Payload: off\n",
      "  Time: 2025-07-25 21:05:26\n",
      "------------------------------\n",
      "\n",
      "\n",
      "Stopping MQTT listener.\n"
     ]
    }
   ],
   "source": [
    "\n",
    "# --- MQTT Broker Configuration ---\n",
    "# Your Home Assistant's IP address (where your MQTT broker is running)\n",
    "MQTT_BROKER_HOST = \"192.168.1.110\"\n",
    "MQTT_BROKER_PORT = 1883\n",
    "# IMPORTANT: Replace with your actual MQTT broker username and password if you have one set up\n",
    "# (These are NOT your Home Assistant login credentials, but for the Mosquitto add-on, if used)\n",
    "# MQTT_BROKER_USERNAME = \"pecan\" # e.g., \"homeassistant_mqtt_user\"\n",
    "# MQTT_BROKER_PASSWORD = \"whatever\" # e.g., \"SuperSecurePassword123!\"\n",
    "\n",
    "# --- Topic to Subscribe To ---\n",
    "# This MUST exactly match the topic you set in your Home Assistant automation\n",
    "MQTT_TOPIC = \"vision/vibratory_conveyor/state\" # <<<< Make sure this is correct!\n",
    "MQTT_TOPIC = \"vision/blower_separator/state\" # <<<< Make sure this is correct!\n",
    "\n",
    "# The callback for when the client receives a CONNACK response from the server.\n",
    "def on_connect(client, userdata, flags, rc):\n",
    "    if rc == 0:\n",
    "        print(\"Successfully connected to MQTT Broker!\")\n",
    "        client.subscribe(MQTT_TOPIC)\n",
    "        print(f\"Subscribed to topic: '{MQTT_TOPIC}'\")\n",
    "        print(\"Listening for messages... (Press Ctrl+C to stop)\")\n",
    "    else:\n",
    "        print(f\"Failed to connect, return code {rc}\\n\")\n",
    "\n",
    "# The callback for when a PUBLISH message is received from the server.\n",
    "def on_message(client, userdata, msg):\n",
    "    received_payload = msg.payload.decode()\n",
    "    print(f\"\\n--- MQTT MESSAGE RECEIVED! ---\")\n",
    "    print(f\"  Topic: {msg.topic}\")\n",
    "    print(f\"  Payload: {received_payload}\")\n",
    "    print(f\"  Time: {time.strftime('%Y-%m-%d %H:%M:%S')}\")\n",
    "    print(f\"------------------------------\\n\")\n",
    "\n",
    "# Create an MQTT client instance\n",
    "client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION1) # Use VERSION1 for broader compatibility\n",
    "\n",
    "# Set callback functions\n",
    "client.on_connect = on_connect\n",
    "client.on_message = on_message\n",
    "\n",
    "# Set username and password if required\n",
    "# (Only uncomment and fill these if your MQTT broker requires authentication)\n",
    "# client.username_pw_set(MQTT_BROKER_USERNAME, MQTT_BROKER_PASSWORD)\n",
    "\n",
    "try:\n",
    "    # Attempt to connect to the MQTT broker\n",
    "    print(f\"Connecting to MQTT broker at {MQTT_BROKER_HOST}:{MQTT_BROKER_PORT}...\")\n",
    "    client.connect(MQTT_BROKER_HOST, MQTT_BROKER_PORT, 60)\n",
    "\n",
    "    # Start the MQTT loop. This runs in the background and processes messages.\n",
    "    client.loop_forever()\n",
    "\n",
    "except KeyboardInterrupt:\n",
    "    print(\"\\nStopping MQTT listener.\")\n",
    "    client.disconnect() # Disconnect gracefully\n",
    "except Exception as e:\n",
    "    print(f\"An unexpected error occurred: {e}\")"
   ]
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   "cell_type": "code",
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   "id": "56531671",
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