{
  "system_id": "UAV000001",
  "uav_type": 0,
  "serial_port": "/dev/ttyUSB0",
  "serial_baudrate": 57600,
  "mqtt_host": "broker.example.com",
  "mqtt_port": 8883,
  "mqtt_client_id": "",
  "mqtt_username": "replace-with-platform-username",
  "mqtt_password_env": "MOTIAN_MQTT_PASSWORD",
  "mqtt_tls": true,
  "mqtt_ca_file": null,
  "mqtt_cert_file": null,
  "mqtt_key_file": null,
  "mqtt_keepalive": 60,
  "max_chunk_bytes": 1024,
  "max_command_bytes": 4096,
  "reconnect_seconds": 2.0,
  "publish_raw_mavlink": true,
  "request_params_on_start": true,
  "param_request_timeout": 15.0,
  "param_request_max_attempts": 3
}