Files
LEDMatrix/web_interface/templates/v3/partials/tools.html
T
9b2f02681d feat(web-ui): detect and surface Raspberry Pi under-voltage/throttling (#383)
* feat(web-ui): detect and surface Raspberry Pi under-voltage/throttling

Adds a vcgencmd get_throttled check to the system-status SSE stream and
surfaces it in the web UI:

- A header badge (next to CPU/Memory/Temp) that stays hidden when healthy,
  turns red when under-voltage/throttling is happening right now, and
  yellow if it happened earlier this session but has since cleared.
- A dismissible top banner (same pattern as the update-available banner)
  that appears while under-voltage/throttling is actively occurring, with
  guidance to check the power supply. Re-appears on a fresh occurrence
  even if a previous one was dismissed.
- A "Power Supply" card on the Overview tab alongside CPU/Memory/Temp/
  Display Status.

Motivated by a real device showing intermittent brightness flicker that
turned out to be ~1 under-voltage event every 30-90s (visible live via
`vcgencmd get_throttled` and dmesg's "Undervoltage detected!" messages) --
there was no way to see this from the web UI, only by SSHing in.

Returns None on non-Pi platforms (no vcgencmd on PATH), matching the
existing guard pattern used for the CPU temperature read.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* feat(web-ui): add power supply diagnostics detail to Tools tab

The header badge/banner/Overview card added in the previous commit only
show a collapsed "is it bad right now" signal. This adds a "Power Supply"
section to the Tools tab with the full 8-flag breakdown (under-voltage,
throttled, freq-capped, soft-temp-limit -- each split into "right now" vs
"occurred since boot") for actually troubleshooting a recurring issue,
plus a pointer to the README's power supply sizing guidance when something
is or was flagged.

Reuses the existing stats SSE stream (window.statsSource) rather than
adding a new endpoint -- the same payload already drives the header/
banner/Overview card, so this just listens for it too.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* fix(web-ui): address review findings on power supply monitoring

- Overview card left its "--" placeholder forever on non-Pi platforms since
  the update only handled a truthy data.power. Now explicitly renders "Not
  available" with a neutral icon/color for that case.
- vcgencmd failures logged at debug, invisible in default remote log
  output. Bumped to warning to match the nearby systemctl failure logging.
- The banner/badge/card and the Tools summary line only looked at
  under_voltage_now/throttled_now (+ occurred), silently ignoring
  freq_capped_now/occurred and soft_temp_limit_now/occurred from
  _get_power_status() -- a Pi that's actively soft-thermal-limited or
  frequency-capped showed a green "OK" everywhere except the detailed
  flag table buried in Tools. All four surfaces now fold all four "now"/
  "occurred" flags into the same active/occurred state.
- The banner text was hardcoded to "Under-voltage detected..." even when
  the actual active condition was throttling/freq-capping/thermal limiting.
  Added _activePowerConditionLabels() (shared, non-module global scope) to
  build the banner/tooltip text from whichever flags are actually set.

Skipped: TTL-caching _get_power_status() to avoid "multiplying forks
across browser tabs" -- that premise doesn't hold against this codebase.
_StreamBroadcaster (its own docstring says as much) already runs exactly
one shared generator per tick regardless of client count, identical to
the uncached cpu_temp file-read two lines above it; there's nothing to
multiply.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* fix(web-ui): address second round of review findings on power monitoring

- updatePowerStatus's falsy-power branch only hid power-stat, leaving
  power-warning-banner visible with stale text if _get_power_status()
  fails transiently. Now hides the banner too and resets the dismissed
  flag, same as the "not active" branch.
- The Tools tab's status badge (and the pre-existing dirty/clean badge
  right next to it) build class names like bg-${color}-100/text-${color}-800
  at runtime. This project hand-rolls its own Tailwind-named utility
  classes in app.css rather than running a real Tailwind build, and the
  light-mode base rules for bg-red-100/bg-yellow-100/bg-green-100/
  text-red-800/text-yellow-800/text-green-800 were simply never defined --
  only some had dark-mode overrides, which are no-ops without a base rule
  in light mode. Added the missing light-mode bases plus the two missing
  dark-mode overrides (bg-yellow-100/bg-green-100), fixing both badges.
- The "occurred earlier" tooltip was a hardcoded string regardless of
  which flag(s) actually fired. Generalized _activePowerConditionLabels()
  to take a suffix ('_now' or '_occurred') and reused it for both tooltips.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* refactor(web-ui): move Power Supply status off the Overview tab

The Overview tab's "Power Supply" stat card duplicated what the Tools
tab's diagnostics section already shows (summary badge + full flag
breakdown), so drop the card and its now-dead JS rather than keep two
copies in sync. The header badge and warning banner (visible on every
page) are unaffected -- only the Overview-tab card is removed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-07 09:35:55 -04:00

404 lines
21 KiB
HTML

<div class="space-y-6" id="tools-root">
<!-- Git & Updates -->
<div class="bg-white rounded-lg shadow p-6">
<div class="border-b border-gray-200 pb-4 mb-6">
<h2 class="text-lg font-semibold text-gray-900">Git &amp; Updates</h2>
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<!-- Git status info -->
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<i class="fas fa-download mr-2"></i>Pull Latest
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Yes, reset
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<div class="border-b border-gray-200 pb-4 mb-6">
<h2 class="text-lg font-semibold text-gray-900">Maintenance</h2>
<p class="mt-1 text-sm text-gray-600">Housekeeping operations that don't affect config or plugins.</p>
</div>
<div class="space-y-4">
<div class="flex items-start justify-between gap-4">
<div>
<p class="text-sm font-medium text-gray-900">Clear Python cache</p>
<p class="text-xs text-gray-500 mt-0.5">Deletes all <code class="bg-gray-100 px-1 rounded">__pycache__</code> directories in the project. Useful after switching branches or debugging import issues.</p>
</div>
<button id="btn-clear-pycache" onclick="toolsAction('clear_pycache', 'btn-clear-pycache', 'result-clear-pycache')"
class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
<i class="fas fa-broom mr-2"></i>Clear Cache
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<div id="result-clear-pycache" class="hidden"></div>
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</div>
<!-- Power Supply Diagnostics -->
<div class="bg-white rounded-lg shadow p-6">
<div class="border-b border-gray-200 pb-4 mb-6">
<h2 class="text-lg font-semibold text-gray-900">Power Supply</h2>
<p class="mt-1 text-sm text-gray-600">Raspberry Pi under-voltage/throttling status (via <code class="bg-gray-100 px-1 rounded">vcgencmd get_throttled</code>). A marginal power supply is a common cause of visible flicker or dimming on LED panels.</p>
</div>
<div id="power-info-panel" class="text-sm">
<div class="animate-pulse text-gray-400">Waiting for live stats…</div>
</div>
</div>
<!-- Services -->
<div class="bg-white rounded-lg shadow p-6">
<div class="border-b border-gray-200 pb-4 mb-6">
<h2 class="text-lg font-semibold text-gray-900">Services</h2>
<p class="mt-1 text-sm text-gray-600">Quick access to service restarts.</p>
</div>
<div class="space-y-4">
<div class="flex items-start justify-between gap-4">
<div>
<p class="text-sm font-medium text-gray-900">Restart display service</p>
<p class="text-xs text-gray-500 mt-0.5">Restarts <code class="bg-gray-100 px-1 rounded">ledmatrix.service</code>.</p>
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</button>
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<div class="flex items-start justify-between gap-4 pt-4 border-t border-gray-100">
<div>
<p class="text-sm font-medium text-gray-900">Restart web interface</p>
<p class="text-xs text-gray-500 mt-0.5">Restarts <code class="bg-gray-100 px-1 rounded">ledmatrix-web.service</code>. The page will go offline briefly.</p>
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<i class="fas fa-globe mr-2"></i>Restart Web
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</div>
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</div>
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// ── power supply diagnostics panel ────────────────────────────────────────
// Reuses the same SSE stream (window.statsSource, set up in base.html)
// that already drives the header badge/banner and Overview card, instead
// of polling a separate endpoint.
const FLAG_LABELS = [
['under_voltage_now', 'Under-voltage (right now)'],
['throttled_now', 'Throttled (right now)'],
['freq_capped_now', 'ARM frequency capped (right now)'],
['soft_temp_limit_now', 'Soft temperature limit active (right now)'],
['under_voltage_occurred', 'Under-voltage occurred (since boot)'],
['throttled_occurred', 'Throttled occurred (since boot)'],
['freq_capped_occurred', 'ARM frequency capped occurred (since boot)'],
['soft_temp_limit_occurred', 'Soft temperature limit occurred (since boot)'],
];
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return;
}
const activeNow = power.under_voltage_now || power.throttled_now ||
power.freq_capped_now || power.soft_temp_limit_now;
const occurredEarlier = power.under_voltage_occurred || power.throttled_occurred ||
power.freq_capped_occurred || power.soft_temp_limit_occurred;
const summaryColor = activeNow ? 'red' : (occurredEarlier ? 'yellow' : 'green');
// _activePowerConditionLabels is defined in base.html's inline script;
// both are classic (non-module) scripts sharing the global scope.
const activeLabels = (typeof _activePowerConditionLabels === 'function')
? _activePowerConditionLabels(power) : [];
const summaryText = activeNow
? `Actively ${activeLabels.length ? activeLabels.join('/') : 'under-voltage/throttled'} right now`
: (occurredEarlier ? 'OK right now (but occurred earlier this boot)' : 'OK — no issues detected');
let html = `
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</span>
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<ul class="space-y-1">`;
for (const [key, label] of FLAG_LABELS) {
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<i class="fas ${set ? 'fa-exclamation-circle text-red-500' : 'fa-check text-green-500'} w-4"></i>
<span class="text-gray-700">${escHtml(label)}</span>
</li>`;
}
html += `</ul>`;
if (activeNow || occurredEarlier) {
html += `<p class="mt-3 text-xs text-gray-500">Consider a higher-amperage 5V supply wired directly to the panel(s), or check for a loose power connector. See the README's Power Supply section for sizing guidance.</p>`;
}
panel.innerHTML = html;
}
if (window.statsSource) {
window.statsSource.addEventListener('message', function(event) {
try {
const data = JSON.parse(event.data);
if (data && 'power' in data) renderPowerInfo(data.power);
} catch (e) { /* ignore malformed frames */ }
});
}
// Load on first render; HTMX will have already swapped us in by this point.
loadGitInfo();
})();
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