[
  { "timestamp": "2025-01-01T10:00:00", "sensor": "temperature", "value": 24.5 },
  { "timestamp": "2025-01-01T10:00:01", "sensor": "humidity", "value": 60 },
  { "timestamp": "2025-01-01T10:00:02", "sensor": "distance", "value": 1.8 },
  { "timestamp": "2025-01-01T10:00:03", "sensor": "battery", "value": 85 }
]