Signal Strength

Signal Strength

Coming. The learning half already runs; the judging half is being built. This page describes what exists today and what the section will do.

What already runs

Since early releases, Device Sentinel records every device's radio signal readings: LQI and RSSI where a device exposes them. Each device's daily minimum is kept in a rolling window, building a per-device signal floor: the worst link quality that device has ever considered normal.

What is coming

Signal danger will be judged against each device's own learned floor, never against a global threshold. This matters because link quality numbers have no universal scale: LQI is manufacturer-defined, and a healthy device deep in the mesh may idle at a value that would mean death for a device beside the coordinator. A global cutoff cannot tell those two apart; a per-device baseline can.

When a device's signal falls dangerously below its own normal, it will be flagged, and the reading trail will ride along as evidence: a falling trail points to a link failure, a steady trail points elsewhere.

The section's configuration screen will hold the sensitivity and a signal-only exclude list, in the same shape as Low Battery.

What you can do today

Press the Scan and Enable Signal and Last-Seen Entities button on the device page. Some integrations ship signal and last-seen entities turned off; the button turns them on so Device Sentinel can learn from them. Entities you disabled yourself are left alone.