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feat: wireview pin-imbalance warning, per-pin rating bars, pin_imbalance_a #18

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Pakobbix merged 1 commits from feat/wireview-imbalance-warning into main 2026-10-03 20:15:53 +00:00
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.gitignore
+1
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@@ -6,6 +6,7 @@ __pycache__/
# Node # Node
frontend/node_modules/ frontend/node_modules/
node_modules/ node_modules/
.vitest/
# IDE/Misc # IDE/Misc
.vscode/ .vscode/
README.md
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@@ -15,8 +15,8 @@ NVCurve brings MSI Afterburner-style per-point voltage-frequency curve control t
> **Blackwell GPU memory** — This is a specialized fork with extended memory offset support (up to +3000 MHz) for Blackwell GPUs (RTX 50-series). \ > **Blackwell GPU memory** — This is a specialized fork with extended memory offset support (up to +3000 MHz) for Blackwell GPUs (RTX 50-series). \
> **Fan Controls** — There is an additional "Fans" tab to setup a customized fan curve, controlling all fans or individual fans. \ > **Fan Controls** — There is an additional "Fans" tab to setup a customized fan curve, controlling all fans or individual fans. \
> **Dashboard** — The default tab is an Dashboard with additional information (PCIe link speed, VBIOS information, Max Core Clock, Throttle Reason and much much more.) \ > **Dashboard** — The default tab is an Dashboard with additional information (PCIe link speed, VBIOS information, Max Core Clock, Throttle Reason and much much more.) \
> **WireView Pro II** — Native monitoring of the Thermal Grizzly WireView Pro II 12VHPWR connector: a dedicated tab shows live temperature, power and current readings — no external exporter or kernel module required. The host needs a one-time setup (udev rule + port access, see [WireView Pro II Setup](docs/WireView.md)); after that the device is auto-detected over USB and the tab only appears while it is connected. \ > **WireView Pro II** — Native monitoring of the Thermal Grizzly WireView Pro II 12VHPWR connector: a dedicated tab shows live temperature, power and current readings — no external exporter or kernel module required. It also raises a big warning in the app header (visible on all tabs) when the current between two power pins diverges by more than 2 A — the signature of a bad pin contact (faulty cable/adapter) that can overheat and melt the connector. The host needs a one-time setup (udev rule + port access, see [WireView Pro II Setup](docs/WireView.md)); after that the device is auto-detected over USB and the tab only appears while it is connected. \
> **Authentification** — For production deplyoment, I added authentification with bcrypt hashing to allow only one or multiple people to have access. \ > **Authentication** — For production deployment, I added authentication with bcrypt hashing to allow only one or multiple people to have access. \
> Installing the pre-built PyPI package will NOT include these features. You must build from source. > Installing the pre-built PyPI package will NOT include these features. You must build from source.
<table> <table>
docs/WireView.md
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@@ -74,6 +74,12 @@ ls -l /dev/wireview-pro2 # -> /dev/ttyACM0
With the device plugged in, start (or restart) the NVCurve server. The **WireView** tab appears in the web UI and `GET /api/wireview` returns the device info and live samples. The tab disappears when the device is unplugged and reappears on re-plug — no restart needed. With the device plugged in, start (or restart) the NVCurve server. The **WireView** tab appears in the web UI and `GET /api/wireview` returns the device info and live samples. The tab disappears when the device is unplugged and reappears on re-plug — no restart needed.
## Pin current imbalance warning
The 12 VHPWR connector is the most fragile part of a PC's power delivery: if one power pin has a bad contact (worn cable, faulty adapter, loose plug), the remaining pins are forced to carry the missing current. Under heavy load this can overheat and melt the connector — in rare cases even start a fire.
NVCurve watches for this: if the current between any two power pins diverges by more than **2 A**, a big warning appears in the app header (visible on every tab, not just WireView) naming the deviating pins (e.g. `Pin 5 (5.6 A) vs Pin 6 (3.5 A)`). It is debounced — the imbalance must persist for several seconds (~7 s) before the warning shows, so single-sample glitches and short load ramps (e.g. AI workloads) do not flash it. When you see it, reduce the load and replace the cable or adapter — do not keep using the connector.
## Alternative: wireview-hwmon kernel module ## Alternative: wireview-hwmon kernel module
If the official `wireview-hwmon` kernel module and its `wireviewd` daemon are installed, the daemon owns the serial port and NVCurve automatically reads the sysfs node instead. No udev rule is needed in that case. If the official `wireview-hwmon` kernel module and its `wireviewd` daemon are installed, the daemon owns the serial port and NVCurve automatically reads the sysfs node instead. No udev rule is needed in that case.
docs/wireview.png
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frontend/package-lock.json
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@@ -3630,6 +3897,25 @@
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@@ -4149,6 +4435,17 @@
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} }
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"dev": true,
"license": "MIT",
"peer": true,
"bin": {
"lz-string": "bin/bin.js"
}
},
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"resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz", "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
@@ -4212,6 +4509,20 @@
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"license": "MIT" "license": "MIT"
}, },
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"resolved": "https://registry.npmjs.org/obug/-/obug-2.2.1.tgz",
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"dev": true,
"funding": [
"https://github.com/sponsors/sxzz",
"https://opencollective.com/debug"
],
"license": "MIT",
"engines": {
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}
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"resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz", "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
@@ -4303,9 +4614,9 @@
"license": "ISC" "license": "ISC"
}, },
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"version": "4.0.4", "version": "4.0.7",
"resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.4.tgz", "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.7.tgz",
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"dev": true, "dev": true,
"license": "MIT", "license": "MIT",
"engines": { "engines": {
@@ -4354,6 +4665,36 @@
"node": ">= 0.8.0" "node": ">= 0.8.0"
} }
}, },
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"dev": true,
"license": "MIT",
"peer": true,
"dependencies": {
"ansi-regex": "^5.0.1",
"ansi-styles": "^5.0.0",
"react-is": "^17.0.1"
},
"engines": {
"node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
}
},
"node_modules/pretty-format/node_modules/ansi-styles": {
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"resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
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"dev": true,
"license": "MIT",
"peer": true,
"engines": {
"node": ">=10"
},
"funding": {
"url": "https://github.com/chalk/ansi-styles?sponsor=1"
}
},
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"resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz", "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
@@ -4385,6 +4726,14 @@
"react": "^19.2.6" "react": "^19.2.6"
} }
}, },
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"resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
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"license": "MIT",
"peer": true
},
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"resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz", "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
@@ -4524,6 +4873,13 @@
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} }
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"license": "MIT"
},
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@@ -4571,10 +4927,30 @@
"url": "https://opencollective.com/webpack" "url": "https://opencollective.com/webpack"
} }
}, },
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"dev": true,
"license": "MIT",
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}
},
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"resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-1.3.1.tgz",
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"dev": true,
"license": "MIT",
"engines": {
"node": ">=18"
}
},
"node_modules/tinyglobby": { "node_modules/tinyglobby": {
"version": "0.2.16", "version": "0.2.17",
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"dev": true, "dev": true,
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"dependencies": { "dependencies": {
@@ -4775,6 +5151,109 @@
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} }
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"dev": true,
"license": "MIT",
"dependencies": {
"@types/chai": "^5.2.2",
"@vitest/mocker": "5.0.3",
"chai": "^6.2.2",
"es-module-lexer": "^2.3.2",
"expect-type": "^1.4.0",
"magic-string": "^1.2.3",
"obug": "^2.1.4",
"picomatch": "^4.0.7",
"std-env": "^4.2.0",
"tinybench": "^6.1.4",
"tinyexec": "^1.3.0",
"tinyglobby": "^0.2.17",
"why-is-node-running": "3.2.1"
},
"bin": {
"vitest": "vitest.mjs"
},
"engines": {
"node": "^22.12.0 || ^24.0.0 || >=26.0.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
},
"peerDependencies": {
"@edge-runtime/vm": "*",
"@opentelemetry/api": "^1.9.0",
"@types/node": "^22.0.0 || >=24.0.0",
"@vitest/browser-playwright": "5.0.3",
"@vitest/browser-preview": "5.0.3",
"@vitest/browser-webdriverio": "^5.0.0-beta.5 || >=5.0.0",
"@vitest/coverage-istanbul": "5.0.3",
"@vitest/coverage-v8": "5.0.3",
"@vitest/ui": "5.0.3",
"happy-dom": "*",
"jsdom": "*",
"vite": "^6.4.0 || ^7.0.0 || ^8.0.0"
},
"peerDependenciesMeta": {
"@edge-runtime/vm": {
"optional": true
},
"@opentelemetry/api": {
"optional": true
},
"@types/node": {
"optional": true
},
"@vitest/browser-playwright": {
"optional": true
},
"@vitest/browser-preview": {
"optional": true
},
"@vitest/browser-webdriverio": {
"optional": true
},
"@vitest/coverage-istanbul": {
"optional": true
},
"@vitest/coverage-v8": {
"optional": true
},
"@vitest/ui": {
"optional": true
},
"happy-dom": {
"optional": true
},
"jsdom": {
"optional": true
},
"vite": {
"optional": false
}
}
},
"node_modules/vitest/node_modules/magic-string": {
"version": "1.4.2",
"resolved": "https://registry.npmjs.org/magic-string/-/magic-string-1.4.2.tgz",
"integrity": "sha512-vG+rjFRj1PqdIBozIxAGMjPlOhaVe+GXpbttY/iSK7rGcJRMlwNJO7dcUwmUqkymsFLJiNGI06t4D7Fr7yRC9g==",
"dev": true,
"license": "MIT",
"dependencies": {
"@jridgewell/sourcemap-codec": "^1.6.0"
}
},
"node_modules/whatwg-mimetype": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
"integrity": "sha512-nt+N2dzIutVRxARx1nghPKGv1xHikU7HKdfafKkLNLindmPU/ch3U31NOCGGA/dmPcmb1VlofO0vnKAcsm0o/Q==",
"dev": true,
"license": "MIT",
"engines": {
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}
},
"node_modules/which": { "node_modules/which": {
"version": "2.0.2", "version": "2.0.2",
"resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz", "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -4791,6 +5270,19 @@
"node": ">= 8" "node": ">= 8"
} }
}, },
"node_modules/why-is-node-running": {
"version": "3.2.1",
"resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-3.2.1.tgz",
"integrity": "sha512-Tb2FUhB4vUsGQlfSquQLYkApkuPAFQXGFzxWKHHumVz2dK+X1RUm/HnID4+TfIGYJ1kTcwOaCk/buYCEJr6YjQ==",
"dev": true,
"license": "MIT",
"bin": {
"why-is-node-running": "cli.js"
},
"engines": {
"node": ">=20.11"
}
},
"node_modules/word-wrap": { "node_modules/word-wrap": {
"version": "1.2.5", "version": "1.2.5",
"resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz", "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
@@ -4801,6 +5293,28 @@
"node": ">=0.10.0" "node": ">=0.10.0"
} }
}, },
"node_modules/ws": {
"version": "8.22.0",
"resolved": "https://registry.npmjs.org/ws/-/ws-8.22.0.tgz",
"integrity": "sha512-Ydggc987+RO0AnWtZ/7Wq9FtNvcrL1b/RO0ud9mWjUPgDrsAAwQSF51sm2hm1XofbU/4jkpGEsLFsZZxU+1DOg==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=10.0.0"
},
"peerDependencies": {
"bufferutil": "^4.0.1",
"utf-8-validate": ">=5.0.2"
},
"peerDependenciesMeta": {
"bufferutil": {
"optional": true
},
"utf-8-validate": {
"optional": true
}
}
},
"node_modules/yallist": { "node_modules/yallist": {
"version": "3.1.1", "version": "3.1.1",
"resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz", "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
frontend/package.json
+5 -1
View File
@@ -7,6 +7,7 @@
"dev": "vite", "dev": "vite",
"build": "tsc -b && vite build", "build": "tsc -b && vite build",
"lint": "eslint .", "lint": "eslint .",
"test": "vitest run",
"preview": "vite preview" "preview": "vite preview"
}, },
"dependencies": { "dependencies": {
@@ -20,6 +21,7 @@
"devDependencies": { "devDependencies": {
"@eslint/js": "^9.39.1", "@eslint/js": "^9.39.1",
"@tailwindcss/vite": "^4.2.1", "@tailwindcss/vite": "^4.2.1",
"@testing-library/react": "^16.3.3",
"@types/d3": "^7.4.3", "@types/d3": "^7.4.3",
"@types/node": "^24.10.1", "@types/node": "^24.10.1",
"@types/react": "^19.2.7", "@types/react": "^19.2.7",
@@ -29,9 +31,11 @@
"eslint-plugin-react-hooks": "^7.0.1", "eslint-plugin-react-hooks": "^7.0.1",
"eslint-plugin-react-refresh": "^0.4.24", "eslint-plugin-react-refresh": "^0.4.24",
"globals": "^16.5.0", "globals": "^16.5.0",
"happy-dom": "^20.14.5",
"tailwindcss": "^4.2.1", "tailwindcss": "^4.2.1",
"typescript": "~5.9.3", "typescript": "~5.9.3",
"typescript-eslint": "^8.48.0", "typescript-eslint": "^8.48.0",
"vite": "^7.3.1" "vite": "^7.3.1",
"vitest": "^5.0.3"
} }
} }
frontend/src/App.tsx
+22
View File
@@ -18,6 +18,7 @@ import { api, onUnauthorized } from "./api/client.js";
import { LoginScreen } from "./components/Auth/LoginScreen.js"; import { LoginScreen } from "./components/Auth/LoginScreen.js";
import { useCurveStore } from "./store/curveStore.js"; import { useCurveStore } from "./store/curveStore.js";
import { useWireview } from "./hooks/useWireview.js"; import { useWireview } from "./hooks/useWireview.js";
import { useWireviewImbalance } from "./hooks/useWireviewImbalance.js";
import { Toaster } from "sonner"; import { Toaster } from "sonner";
import { Loader, ChevronDown } from "lucide-react"; import { Loader, ChevronDown } from "lucide-react";
import { useState, useRef, useEffect } from "react"; import { useState, useRef, useEffect } from "react";
@@ -98,6 +99,7 @@ function MainApp({
const { setCurve, activeProfile, setActiveProfile, selectedGpuIndex } = const { setCurve, activeProfile, setActiveProfile, selectedGpuIndex } =
useCurveStore(); useCurveStore();
const wireview = useWireview(); const wireview = useWireview();
const wireImbalance = useWireviewImbalance(wireview.sample);
const [activeTab, setActiveTab] = useState< const [activeTab, setActiveTab] = useState<
"dashboard" | "curve" | "performance" | "fans" | "wireview" "dashboard" | "curve" | "performance" | "fans" | "wireview"
@@ -171,6 +173,26 @@ function MainApp({
</div> </div>
)} )}
{wireImbalance && (
<div className="bg-red-500/15 border-b-2 border-red-500 text-red-300 px-4 py-2.5 flex items-center justify-center gap-3 flex-wrap">
<span className="text-xl leading-none">⚠</span>
<span className="text-base font-bold">
WireView: current imbalance {wireImbalance.diff.toFixed(1)} A —
Pin {wireImbalance.hiPin} ({wireImbalance.maxI.toFixed(1)} A) vs
Pin {wireImbalance.loPin} ({wireImbalance.minI.toFixed(1)} A)
</span>
<span className="text-sm text-red-200/80">
Bad pin contact — reduce load, replace cable/adapter
</span>
<button
onClick={() => setActiveTab("wireview")}
className="text-sm font-semibold text-red-200 hover:text-white underline underline-offset-2"
>
View
</button>
</div>
)}
<main className="flex-1 p-4 flex flex-col gap-4 w-full max-w-[1600px] mx-auto"> <main className="flex-1 p-4 flex flex-col gap-4 w-full max-w-[1600px] mx-auto">
{/* Tab Header and Profile Selector */} {/* Tab Header and Profile Selector */}
<div className="flex justify-between items-end border-b border-zinc-800 pb-2"> <div className="flex justify-between items-end border-b border-zinc-800 pb-2">
frontend/src/components/WireView/WireViewPanel.tsx
+11 -5
View File
@@ -8,8 +8,10 @@ interface Props {
history: WireViewSample[]; history: WireViewSample[];
} }
// Per-pin over-current protection of the 12 VHPWR connector (A). // Per-pin current rating of the 12 VHPWR connector (A). The bar's
const PIN_OCP_A = 55; // full scale is 10 A (rating + headroom); red at/above the 9.2 A rating.
const PIN_RATED_A = 9.2;
const PIN_BAR_MAX_A = 10;
const FAULT_NAMES: Record<number, string> = { const FAULT_NAMES: Record<number, string> = {
0: "Chip over-temperature", 0: "Chip over-temperature",
@@ -87,9 +89,13 @@ function PinCard({
current: number; current: number;
power: number; power: number;
}) { }) {
const loadPct = Math.min(100, (current / PIN_OCP_A) * 100); const loadPct = Math.min(100, (current / PIN_BAR_MAX_A) * 100);
const barColor = const barColor =
loadPct >= 90 ? "#f87171" : loadPct >= 75 ? "#fbbf24" : "#34d399"; current >= PIN_RATED_A
? "#f87171"
: loadPct >= 75
? "#fbbf24"
: "#34d399";
return ( return (
<div className="bg-zinc-900 rounded-lg p-3 flex flex-col gap-1.5 min-w-0"> <div className="bg-zinc-900 rounded-lg p-3 flex flex-col gap-1.5 min-w-0">
<div className="flex items-center justify-between"> <div className="flex items-center justify-between">
@@ -97,7 +103,7 @@ function PinCard({
Pin {index + 1} Pin {index + 1}
</span> </span>
<span className="text-[10px] font-mono text-zinc-600"> <span className="text-[10px] font-mono text-zinc-600">
{current.toFixed(1)} / {PIN_OCP_A} A {current.toFixed(1)} / {PIN_RATED_A} A
</span> </span>
</div> </div>
<div className="grid grid-cols-3 gap-1 text-center"> <div className="grid grid-cols-3 gap-1 text-center">
frontend/src/hooks/useWireviewImbalance.test.ts
+129
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@@ -0,0 +1,129 @@
import { useState } from "react";
import { renderHook, act } from "@testing-library/react";
import { describe, it, expect } from "vitest";
import { useWireviewImbalance } from "./useWireviewImbalance.js";
import type { WireViewSample } from "../types.js";
/** Build a minimal sample with the given per-pin currents (A). */
function sample(pinCurrents: number[]): WireViewSample {
return {
timestamp: Date.now(),
power_total_w: 0,
current_total_a: pinCurrents.reduce((a, b) => a + b, 0),
pin_imbalance_a: 0,
voltage_avg_v: 12,
pins: pinCurrents.map((a) => ({
voltage_v: 12,
current_a: a,
power_w: 12 * a,
})),
temp_in_c: null,
temp_out_c: null,
temp_ext1_c: null,
temp_ext2_c: null,
fan_duty_pct: 0,
fault_status: 0,
fault_log: 0,
psu_capability_w: 600,
};
}
const BALANCED = [4.5, 4.6, 4.4, 4.8, 5.0, 4.2]; // spread 0.8 A
const IMBALANCED = [4.5, 4.6, 4.4, 4.8, 5.6, 3.5]; // spread 2.1 A
function useTestHook() {
const [s, setS] = useState<WireViewSample | null>(null);
const alert = useWireviewImbalance(s);
return { alert, setSample: setS };
}
/**
* Feed `times` fresh samples (new object identity, like the websocket).
* Each sample must be a separate state update — the hook counts per sample,
* so the loop is intentional (not batchable).
*/
function feed(
setSample: (s: WireViewSample) => void,
currents: number[],
times: number,
) {
for (let i = 0; i < times; i++) {
act(() => setSample(sample(currents)));
}
}
describe("useWireviewImbalance", () => {
it("returns null for a null sample", () => {
const { result } = renderHook(() => useTestHook());
expect(result.current.alert).toBeNull();
});
it("stays hidden while pins are balanced", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, BALANCED, 10);
expect(result.current.alert).toBeNull();
});
it("shows only after 7 consecutive imbalanced samples", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 6);
expect(result.current.alert).toBeNull();
feed(result.current.setSample, IMBALANCED, 1);
expect(result.current.alert).not.toBeNull();
});
it("reports the correct pins and spread", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 7);
const alert = result.current.alert!;
expect(alert.diff).toBeCloseTo(2.1, 5);
expect(alert.hiPin).toBe(5); // 5.6 A
expect(alert.loPin).toBe(6); // 3.5 A
expect(alert.maxI).toBeCloseTo(5.6, 5);
expect(alert.minI).toBeCloseTo(3.5, 5);
});
it("a single balanced sample in the streak resets the counter", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 6);
feed(result.current.setSample, BALANCED, 1);
feed(result.current.setSample, IMBALANCED, 6);
expect(result.current.alert).toBeNull();
feed(result.current.setSample, IMBALANCED, 1);
expect(result.current.alert).not.toBeNull();
});
it("keeps showing for 5 samples after the imbalance clears, then hides", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 7);
expect(result.current.alert).not.toBeNull();
feed(result.current.setSample, BALANCED, 4);
expect(result.current.alert).not.toBeNull(); // grace period
feed(result.current.setSample, BALANCED, 1);
expect(result.current.alert).toBeNull();
});
it("stays shown (with updated values) while the imbalance persists", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 7);
feed(result.current.setSample, [4.5, 4.6, 4.4, 4.8, 6.1, 3.2], 1);
const alert = result.current.alert!;
expect(alert.diff).toBeCloseTo(2.9, 5);
expect(alert.hiPin).toBe(5);
expect(alert.loPin).toBe(6);
});
it("clears immediately when the sample disappears (device unplugged)", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, IMBALANCED, 7);
expect(result.current.alert).not.toBeNull();
act(() => result.current.setSample(null));
expect(result.current.alert).toBeNull();
});
it("ignores samples with fewer than 2 pins", () => {
const { result } = renderHook(() => useTestHook());
feed(result.current.setSample, [10], 5);
expect(result.current.alert).toBeNull();
});
});
frontend/src/hooks/useWireviewImbalance.ts
+78
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@@ -0,0 +1,78 @@
import { useEffect, useRef, useState } from "react";
import type { WireViewSample } from "../types.js";
// Current difference between any two pins that indicates a bad contact.
const PIN_IMBALANCE_A = 2;
// Show only after the imbalance holds for this many consecutive samples (~1 s each).
// AI workloads produce frequent short load ramps that skew one pin transiently,
// so the threshold is deliberately high: a bad contact stays imbalanced, a ramp does not.
const SHOW_AFTER = 7;
// Keep showing this many samples after the imbalance clears (grace period).
const HIDE_AFTER = 5;
export interface ImbalanceAlert {
diff: number;
maxI: number;
minI: number;
/** 1-based pin index carrying the most current */
hiPin: number;
/** 1-based pin index carrying the least current */
loPin: number;
}
/**
* Debounced pin-current imbalance detection.
*
* A single sample can transiently skew (load change, measurement glitch), so
* the alert only appears after the imbalance persists for a few samples, and
* stays visible briefly after it clears instead of flickering.
*/
export function useWireviewImbalance(
sample: WireViewSample | null,
): ImbalanceAlert | null {
const [alert, setAlert] = useState<ImbalanceAlert | null>(null);
const alertRef = useRef<ImbalanceAlert | null>(null);
const streak = useRef(0);
const grace = useRef(0);
useEffect(() => {
function update(next: ImbalanceAlert | null) {
alertRef.current = next;
setAlert(next);
}
if (!sample || sample.pins.length < 2) {
streak.current = 0;
grace.current = 0;
if (alertRef.current) update(null);
return;
}
const currents = sample.pins.map((p) => p.current_a);
const maxI = Math.max(...currents);
const minI = Math.min(...currents);
const diff = maxI - minI;
if (diff > PIN_IMBALANCE_A) {
streak.current += 1;
grace.current = 0;
if (streak.current >= SHOW_AFTER) {
update({
diff,
maxI,
minI,
hiPin: currents.indexOf(maxI) + 1,
loPin: currents.indexOf(minI) + 1,
});
}
} else {
streak.current = 0;
if (alertRef.current) {
grace.current += 1;
if (grace.current >= HIDE_AFTER) update(null);
}
}
}, [sample]);
return alert;
}
frontend/src/types.ts
+2
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@@ -178,6 +178,8 @@ export interface WireViewSample {
timestamp: number; timestamp: number;
power_total_w: number; power_total_w: number;
current_total_a: number; current_total_a: number;
/** Spread (A) between the highest- and lowest-loaded pin */
pin_imbalance_a: number;
voltage_avg_v: number; voltage_avg_v: number;
pins: WireViewPin[]; pins: WireViewPin[];
// Temperatures are null when the source has no channel for them // Temperatures are null when the source has no channel for them
frontend/vitest.config.ts
+8
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@@ -0,0 +1,8 @@
import { defineConfig } from "vitest/config";
export default defineConfig({
test: {
environment: "happy-dom",
include: ["src/**/*.test.ts"],
},
});
nvcurve/wireview.py
+9
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@@ -152,10 +152,16 @@ def parse_sensor_struct(buf: bytes) -> dict:
power_total += voltage_v * current_a power_total += voltage_v * current_a
current_total += current_a current_total += current_a
# Spread between the highest- and lowest-loaded pin; a growing spread
# indicates a bad pin contact (see the frontend imbalance warning).
pin_currents = [p["current_a"] for p in pins]
pin_imbalance = round(max(pin_currents) - min(pin_currents), 3)
return { return {
"timestamp": time.time(), "timestamp": time.time(),
"power_total_w": round(power_total, 3), "power_total_w": round(power_total, 3),
"current_total_a": round(current_total, 3), "current_total_a": round(current_total, 3),
"pin_imbalance_a": pin_imbalance,
"voltage_avg_v": ( "voltage_avg_v": (
round(power_total / current_total, 3) if current_total > 0 else 0.0 round(power_total / current_total, 3) if current_total > 0 else 0.0
), ),
@@ -608,11 +614,14 @@ class WireViewHwmonDevice:
for v, i in zip(pin_voltage, pin_current, strict=True) for v, i in zip(pin_voltage, pin_current, strict=True)
) )
current_total = sum(pin_current) current_total = sum(pin_current)
pin_currents = [round(i, 3) for i in pin_current]
pin_imbalance = round(max(pin_currents) - min(pin_currents), 3)
return { return {
"timestamp": time.time(), "timestamp": time.time(),
"power_total_w": round(power_total, 3), "power_total_w": round(power_total, 3),
"current_total_a": round(current_total, 3), "current_total_a": round(current_total, 3),
"pin_imbalance_a": pin_imbalance,
"voltage_avg_v": ( "voltage_avg_v": (
round(power_total / current_total, 3) round(power_total / current_total, 3)
if current_total > 0 if current_total > 0
tests/test_wireview.py
+13
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@@ -89,6 +89,18 @@ def test_parse_sensor_struct():
"total power", "total power",
abs(s["power_total_w"] - round(6 * 11.904 * 6.221, 3)) < 1e-9, abs(s["power_total_w"] - round(6 * 11.904 * 6.221, 3)) < 1e-9,
) )
check(
"pin imbalance (uniform)",
s["pin_imbalance_a"] == 0.0,
)
# Imbalance is the spread between the highest- and lowest-loaded pin.
uneven = wv.parse_sensor_struct(
make_frame(pins=((11904, 6221, 74055),) * 5 + ((11900, 1100, 13090),))
)
check(
"pin imbalance (uneven)",
abs(uneven["pin_imbalance_a"] - 5.121) < 1e-9,
)
check( check(
"avg voltage", "avg voltage",
abs(s["voltage_avg_v"] - 11.904) < 1e-3, abs(s["voltage_avg_v"] - 11.904) < 1e-3,
@@ -296,6 +308,7 @@ def test_hwmon_device():
"hwmon total current", "hwmon total current",
abs(s["current_total_a"] - round(6 * 6.221, 3)) < 1e-9, abs(s["current_total_a"] - round(6 * 6.221, 3)) < 1e-9,
) )
check("hwmon pin imbalance (uniform)", s["pin_imbalance_a"] == 0.0)
dev.close() dev.close()
check("hwmon closed", not dev.connected) check("hwmon closed", not dev.connected)