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The Device Page

TheThinkingHome edited this page Jul 19, 2026 · 26 revisions

The Device Page

Settings, Devices and Services, Device Sentinel. What every row means, as of 0.3.12.

Controls

Enable Signals, Enable Last Seen, Enable Battery. Three buttons, one per diagnostic kind. Each scans the entity registry for entities of its kind that an integration shipped turned off, and turns them on so Device Sentinel can learn from them, on watched devices only. Entities you disabled yourself are left alone. They are split so you can enable exactly what you want: last-seen entities are protocol truth, the most reliable clock a device can offer, so Enable Last Seen strengthens future freeze detection; Enable Battery turns on the battery-percentage sensors the discharge history records; Enable Signals turns on the link-quality entities the signal floor learns from.

Problem List. Device Sentinel's own todo list, one row per current finding. Checking a row acknowledges it; a finding that recovers removes its own row. Items you add yourself are left untouched. Empty until the detection families that populate it arrive.

Sensors

Status. Watching, Learning, or Problem. Learning shows until the first device establishes its rhythm; Watching from then on; Problem if Device Sentinel's own storage is unhealthy. The setup count and install date ride as attributes.

Devices Watched. How many devices are being observed and learned. The split behind it (total, set aside, deviceless entities) rides as attributes.

Devices Learned. How many devices have an established rhythm, meaning enough learned days to be judged for freeze once freeze detection arrives. Not expected to reach Devices Watched: devices with no heartbeat, like buttons and remotes, never establish a rhythm and are never judged frozen, by design.

Battery Low Count. How many batteries are flagged low right now.

Battery Low List. The same count, with one row per flagged device in its attributes: name, entity, area, level, low-since. Built for dashboards; the row shape matches the Battery Sentinel blueprint.

Configuration

Battery Low Threshold. The percentage at or below which a battery is flagged. The same setting as the slider on the Low Battery screen, surfaced here so the knob lives where the counts are seen.

Diagnostic

Service Devices Ignored. Devices with no hardware to watch: service entries, cloud connections, integration containers. Device Sentinel classifies these out itself. This is not the exclude list; you did not choose these and they need nothing from you.

Entity IDs

Since 0.3.12, in the form the names suggest: sensor.device_sentinel_devices_watched, sensor.device_sentinel_devices_learned, and so on. Installations from before 0.3.12 were migrated automatically, one logged rename per entity.

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