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+# MQTT Device Manager & Web UI
+
+![alt text](./docs/dashboard.png)
+
+## Features
+- Device interface via [MQTT: The Standard for IoT Messaging](mqtt.org)
+    > _It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth._
+- Device properties are automatically discovered & subscribed from MQTT topic structure
+- Commands annotated with [JSON Schema](https://json-schema.org/)
+    - Input is validated according to schema with [python-jsonschema](https://python-jsonschema.readthedocs.io/en/stable/validate/)
+    - Schema is passed directly to the frontend for form generation with [JSONForms](JSONForms)
+- Reactive Vue frontend
+    - Fast, realtime updates due to pub/sub architecture
+    - Property search by name, name fragment or value
+    - Flash effect on property update
+    - Frontend schema validation for commands with human readable error messages
+
+## Example command implementation
+```python
+    @command(
+        {
+            "type": "object",
+            "properties": {
+                "measRate": {
+                    "type": "integer",
+                    "minimum": 50,
+                    "maximum": 60000,
+                    "description": "Measurement period in milliseconds",
+                    "default": 1000,
+                },
+                "navRate": {
+                    "type": "integer",
+                    "minimum": 1,
+                    "maximum": 127,
+                    "description": "Number of measurement cycles per navigation solution",
+                    "default": 1
+                },
+                "timeRef": {
+                    "type": "integer",
+                    "enum": [0, 1],
+                    "description": "Time reference (0=UTC, 1=GPS)",
+                },
+            },
+            "required": ["measRate", "navRate", "timeRef"],
+            "additionalProperties": False,
+        },
+        description="Reconfigure the rate properties for the UBX device.",
+    )
+    async def configure_rate(self, args):
+        message = pyubx2.UBXMessage(
+            "CFG",
+            "CFG-RATE",
+            pyubx2.ubxtypes_core.SET,
+            measRate=args["measRate"],
+            navRate=args["navRate"],
+            timeRef=args["timeRef"],
+        )
+        num_bytes = await self.serial_port.write_async(message.serialize())
+        return num_bytes
+```
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