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Documentation Index

Fetch the complete documentation index at: https://docs.altnautica.com/llms.txt

Use this file to discover all available pages before exploring further.

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Telemetry

The Telemetry page exposes two surfaces: the live sensor stream pushed by the flight controller, and the full FC parameter table.
Telemetry page

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Live sensors

Streamed via the dashboard snapshot endpoint. Each entry has a stable id, a current value, and a state badge. Sensors with no recent value fall back to a — placeholder.

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Parameters

The agent caches the FC parameter table on first connect and keeps a local copy in sync as values are written. The dashboard renders the table virtualized for the ~800-parameter ArduPilot surface.

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Common operations

1

Search

Type into the search box. Matches name + description. The list re-virtualizes on every keystroke.
2

Edit a value

Click the value, type the new number, press Enter. The edit goes to a pending bucket so you can stage multiple edits before pushing.
3

Push to FC

Click Save to RAM. The agent batches the writes, retries on PARAM_ACK timeouts, and surfaces per-param failures. ArduPilot auto-saves to EEPROM on every PARAM_SET, so no separate flash step is needed.
4

Commit to flash

Click Commit to flash if you want the belt-and-suspenders MAV_CMD_PREFLIGHT_STORAGE to fire. The agent treats this command as fire-and-forget because ArduPilot does not reliably ACK it.

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Profile gating

Telemetry is a drone-only page. On a ground-station profile this URL renders the “Not available on this profile” panel.

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Backend endpoints

MethodPathPurpose
GET/api/paramsFull parameter dump (cached)
GET/api/v1/dashboard/snapshotsensors array on every poll tick
POST/api/params/{name}Single-parameter write (used by the editor)

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Troubleshooting

The agent has not finished its initial dump from the FC. Wait for the header to flip from “Loading” to “Loaded N params”. A stuck load usually means the MAVLink serial baud is wrong or the FC has not heartbeated yet. Check the Flight Controller card on Home.
ArduPilot rejects writes that are out-of-range or read-only. The error column shows the FC’s response. Read the parameter’s docs in REST API reference or the FC firmware documentation before retrying.