A farm dashboard is only as good as the worst number on it. A reading that looks fine but is not real is worse than no reading at all, because you act on it — and it sits in your history for ever.
Rules our devices follow
- A failed nutrient read is skipped, never reported as 0-0-0 — which would look like starved soil.
- A device that cannot confirm the correct time does not report, so no reading is ever stamped with a wrong date.
- A device that has not reported is shown as silent, not frozen at its last value.
- Battery level and battery health are reported with every reading, so a dying sensor is visible before it stops.
- Devices that hang on a bad network connection restart themselves under a watchdog, rather than sitting silent until someone visits.
Why it matters for records
Buyers, auditors and lenders increasingly rely on sensor history. A record with honest gaps is defensible; a record with invented values is not.
If a sensor has not reported, the dashboard says so. It will never show you a comfortable number that is not real.