update page

src/App.tsx

@@ -12,6 +12,7 @@ import ALMTypePage from "./pages/ALMTypePage";
 import TraceabilityMatrixPage from "./pages/TraceabilityMatrixPage";
 import ESPIDFHelperPage from "./pages/ESPIDFHelperPage";
 import WorkPackageGraphPage from "./pages/WorkPackageGraphPage";
+import SelectedSensorsPage from "./pages/SelectedSensorsPage";
 import LoginPage from "./pages/LoginPage";
 import NotFound from "./pages/NotFound";
 
@@ -74,6 +75,14 @@ const App = () => (
                 </ProtectedRoute>
               }
             />
+            <Route
+              path="/sensors"
+              element={
+                <ProtectedRoute>
+                  <SelectedSensorsPage />
+                </ProtectedRoute>
+              }
+            />
             <Route
               path="/alm/:type"
               element={

src/components/DataUpdateDialog.tsx

@@ -12,19 +12,15 @@ import {
   CheckCircle, 
   XCircle, 
   AlertCircle, 
-  Cloud, 
   Server, 
   RefreshCw,
   Loader2
 } from 'lucide-react';
 import { WorkPackage } from '@/types/traceability';
 import { parseCSVContent, ParseResult } from '@/lib/csvParser';
-import { 
+
-  fetchFromOpenProject, 
+const STORAGE_KEY = 'traceability_data';
-  fetchFromBackendProxy, 
+const SERVER_URL_KEY = 'traceability_server_url';
-  OpenProjectConfig,
-  DEFAULT_CONFIG 
-} from '@/services/openProjectService';
 
 interface DataUpdateDialogProps {
   onDataLoaded: (workPackages: WorkPackage[]) => void;
@@ -40,11 +36,10 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
   const [fileName, setFileName] = useState<string>('');
   const fileInputRef = useRef<HTMLInputElement>(null);
   
-  // Backend proxy config
+  // Server endpoint config - persisted
-  const [proxyUrl, setProxyUrl] = useState('');
+  const [serverUrl, setServerUrl] = useState(() => 
-  
+    localStorage.getItem(SERVER_URL_KEY) || '/api/traceability'
-  // Direct OpenProject config
+  );
-  const [opConfig, setOpConfig] = useState<OpenProjectConfig>(DEFAULT_CONFIG);
   
   // Drag and drop state
   const [isDragging, setIsDragging] = useState(false);
@@ -53,6 +48,15 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
     setLogs(prev => [...prev, log]);
   };
 
+  const persistData = (workPackages: WorkPackage[]) => {
+    const data = {
+      lastUpdated: new Date().toISOString(),
+      workPackages
+    };
+    localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
+    addLog(`💾 Data persisted to storage (${workPackages.length} items)`);
+  };
+
   const handleFile = async (file: File) => {
     setFileName(file.name);
     setIsLoading(true);
@@ -60,10 +64,13 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
     setErrors([]);
     
     try {
+      addLog(`📂 Reading file: ${file.name} (${(file.size / 1024).toFixed(1)} KB)`);
       const text = await file.text();
+      addLog(`📝 File loaded, ${text.length} characters`);
+      
       const result = parseCSVContent(text);
       setParseResult(result);
-      setLogs(result.logs);
+      setLogs(prev => [...prev, ...result.logs]);
       setErrors(result.errors);
     } finally {
       setIsLoading(false);
@@ -84,66 +91,87 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
     if (file) handleFile(file);
   };
 
-  const handleFetchFromProxy = async () => {
+  const handleFetchFromServer = async () => {
-    if (!proxyUrl) {
+    if (!serverUrl) {
-      setErrors(['Please enter a backend proxy URL']);
+      setErrors(['Please enter a server endpoint URL']);
       return;
     }
     
+    // Save URL for next time
+    localStorage.setItem(SERVER_URL_KEY, serverUrl);
+    
     setIsLoading(true);
     setLogs([]);
     setErrors([]);
     setParseResult(null);
     
     try {
-      const result = await fetchFromBackendProxy(proxyUrl, addLog);
+      addLog(`🔍 Connecting to server: ${serverUrl}`);
-      setLogs(result.logs);
-      setErrors(result.errors);
       
-      if (result.success) {
+      const response = await fetch(serverUrl, {
-        const typeCounts = result.workPackages.reduce((acc, wp) => {
+        method: 'GET',
+        headers: {
+          'Accept': 'application/json, text/csv'
+        }
+      });
+      
+      if (!response.ok) {
+        throw new Error(`Server Error: ${response.status} ${response.statusText}`);
+      }
+      
+      const contentType = response.headers.get('content-type') || '';
+      addLog(`📄 Response content-type: ${contentType}`);
+      
+      if (contentType.includes('text/csv')) {
+        addLog(`📋 Parsing CSV response...`);
+        const csvText = await response.text();
+        const result = parseCSVContent(csvText);
+        
+        setLogs(prev => [...prev, ...result.logs]);
+        setErrors(result.errors);
+        setParseResult(result);
+        
+      } else if (contentType.includes('application/json')) {
+        addLog(`📋 Parsing JSON response...`);
+        const data = await response.json();
+        
+        let workPackages: WorkPackage[];
+        if (Array.isArray(data)) {
+          workPackages = data;
+        } else if (data.workPackages) {
+          workPackages = data.workPackages;
+        } else {
+          throw new Error('Invalid JSON format: expected array or {workPackages: [...]}');
+        }
+        
+        addLog(`✅ Received ${workPackages.length} work packages`);
+        
+        const typeCounts = workPackages.reduce((acc, wp) => {
           acc[wp.type] = (acc[wp.type] || 0) + 1;
           return acc;
         }, {} as Record<string, number>);
         
         setParseResult({
           success: true,
-          workPackages: result.workPackages,
+          workPackages,
-          logs: result.logs,
+          logs: [],
-          errors: result.errors,
+          errors: [],
           typeCounts
         });
+      } else {
+        // Try to parse as CSV anyway
+        addLog(`⚠️ Unknown content-type, attempting CSV parse...`);
+        const text = await response.text();
+        const result = parseCSVContent(text);
+        setLogs(prev => [...prev, ...result.logs]);
+        setErrors(result.errors);
+        setParseResult(result);
       }
-    } finally {
-      setIsLoading(false);
-    }
-  };
       
-  const handleFetchFromOpenProject = async () => {
+    } catch (error) {
-    setIsLoading(true);
+      const errorMsg = error instanceof Error ? error.message : 'Unknown error';
-    setLogs([]);
+      setErrors([errorMsg]);
-    setErrors([]);
+      addLog(`❌ Error: ${errorMsg}`);
-    setParseResult(null);
-    
-    try {
-      const result = await fetchFromOpenProject(opConfig, undefined, addLog);
-      setLogs(result.logs);
-      setErrors(result.errors);
-      
-      if (result.success) {
-        const typeCounts = result.workPackages.reduce((acc, wp) => {
-          acc[wp.type] = (acc[wp.type] || 0) + 1;
-          return acc;
-        }, {} as Record<string, number>);
-        
-        setParseResult({
-          success: true,
-          workPackages: result.workPackages,
-          logs: result.logs,
-          errors: result.errors,
-          typeCounts
-        });
-      }
     } finally {
       setIsLoading(false);
     }
@@ -151,6 +179,8 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
 
   const handleApply = () => {
     if (parseResult?.success && parseResult.workPackages.length > 0) {
+      // Persist to localStorage for other users/sessions
+      persistData(parseResult.workPackages);
       onDataLoaded(parseResult.workPackages);
       onClose?.();
     }
@@ -174,23 +204,19 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
           Update Traceability Data
         </CardTitle>
         <CardDescription>
-          Choose how to update your data from OpenProject
+          Upload a CSV file or fetch from your server
         </CardDescription>
       </CardHeader>
       <CardContent className="space-y-4">
         <Tabs value={activeTab} onValueChange={setActiveTab}>
-          <TabsList className="grid w-full grid-cols-3">
+          <TabsList className="grid w-full grid-cols-2">
             <TabsTrigger value="upload" className="flex items-center gap-2">
               <Upload className="h-4 w-4" />
               Upload CSV
             </TabsTrigger>
-            <TabsTrigger value="proxy" className="flex items-center gap-2">
+            <TabsTrigger value="server" className="flex items-center gap-2">
               <Server className="h-4 w-4" />
-              Backend API
+              Server Fetch
-            </TabsTrigger>
-            <TabsTrigger value="direct" className="flex items-center gap-2">
-              <Cloud className="h-4 w-4" />
-              Direct Fetch
             </TabsTrigger>
           </TabsList>
 
@@ -222,103 +248,46 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
               </p>
             </div>
             <p className="text-xs text-muted-foreground">
-              Run <code className="bg-muted px-1 rounded">python get_traceability.py</code> locally to generate the CSV
+              Run <code className="bg-muted px-1 rounded">python get_traceability.py</code> to generate the CSV file
             </p>
           </TabsContent>
 
-          {/* Tab 2: Backend Proxy */}
+          {/* Tab 2: Server Fetch */}
-          <TabsContent value="proxy" className="space-y-4">
+          <TabsContent value="server" className="space-y-4">
             <div className="space-y-3">
               <div>
-                <Label htmlFor="proxyUrl">Backend API Endpoint</Label>
+                <Label htmlFor="serverUrl">Server Endpoint</Label>
                 <Input
-                  id="proxyUrl"
+                  id="serverUrl"
-                  placeholder="https://your-server.com/api/traceability"
+                  placeholder="/api/traceability or https://your-server.com/api/data"
-                  value={proxyUrl}
+                  value={serverUrl}
-                  onChange={(e) => setProxyUrl(e.target.value)}
+                  onChange={(e) => setServerUrl(e.target.value)}
                 />
                 <p className="text-xs text-muted-foreground mt-1">
-                  Your backend should return JSON or CSV with work package data
+                  Endpoint that runs your Python script and returns CSV or JSON
                 </p>
               </div>
               <Button 
-                onClick={handleFetchFromProxy} 
+                onClick={handleFetchFromServer} 
-                disabled={isLoading || !proxyUrl}
+                disabled={isLoading || !serverUrl}
                 className="w-full"
               >
                 {isLoading ? (
                   <><Loader2 className="h-4 w-4 mr-2 animate-spin" /> Fetching...</>
                 ) : (
-                  <><Server className="h-4 w-4 mr-2" /> Fetch from Backend</>
+                  <><Server className="h-4 w-4 mr-2" /> Fetch from Server</>
                 )}
               </Button>
             </div>
             <div className="bg-muted/50 rounded-lg p-3 text-xs space-y-2">
-              <p className="font-medium">Backend Setup Guide:</p>
+              <p className="font-medium">Server Setup:</p>
               <ol className="list-decimal ml-4 space-y-1 text-muted-foreground">
-                <li>Deploy the Python script on your server</li>
+                <li>Create an endpoint that runs <code>get_traceability.py</code></li>
-                <li>Create an API endpoint that runs the script</li>
+                <li>Return the CSV file or JSON with work packages</li>
-                <li>Return JSON or serve the generated CSV</li>
+                <li>Example: <code>GET /api/traceability</code> → returns CSV</li>
               </ol>
             </div>
           </TabsContent>
-
-          {/* Tab 3: Direct OpenProject Fetch */}
-          <TabsContent value="direct" className="space-y-4">
-            <div className="space-y-3">
-              <div>
-                <Label htmlFor="baseUrl">OpenProject URL</Label>
-                <Input
-                  id="baseUrl"
-                  placeholder="https://openproject.example.com"
-                  value={opConfig.baseUrl}
-                  onChange={(e) => setOpConfig(prev => ({ ...prev, baseUrl: e.target.value }))}
-                />
-              </div>
-              <div>
-                <Label htmlFor="projectId">Project Identifier</Label>
-                <Input
-                  id="projectId"
-                  placeholder="project-id"
-                  value={opConfig.projectIdentifier}
-                  onChange={(e) => setOpConfig(prev => ({ ...prev, projectIdentifier: e.target.value }))}
-                />
-              </div>
-              <div>
-                <Label htmlFor="apiKey">API Key</Label>
-                <Input
-                  id="apiKey"
-                  type="password"
-                  placeholder="Your OpenProject API Key"
-                  value={opConfig.apiKey}
-                  onChange={(e) => setOpConfig(prev => ({ ...prev, apiKey: e.target.value }))}
-                />
-              </div>
-              <Button 
-                onClick={handleFetchFromOpenProject} 
-                disabled={isLoading}
-                className="w-full"
-              >
-                {isLoading ? (
-                  <><Loader2 className="h-4 w-4 mr-2 animate-spin" /> Fetching...</>
-                ) : (
-                  <><Cloud className="h-4 w-4 mr-2" /> Fetch from OpenProject</>
-                )}
-              </Button>
-            </div>
-            <div className="bg-amber-500/10 border border-amber-500/20 rounded-lg p-3 text-xs">
-              <div className="flex items-start gap-2">
-                <AlertCircle className="h-4 w-4 text-amber-600 mt-0.5" />
-                <div>
-                  <p className="font-medium text-amber-700">CORS Notice</p>
-                  <p className="text-amber-600 mt-1">
-                    Direct browser fetch may fail due to CORS. Configure your OpenProject server to allow 
-                    cross-origin requests, or use the Backend API option.
-                  </p>
-                </div>
-              </div>
-            </div>
-          </TabsContent>
         </Tabs>
 
         {/* Results Section */}
@@ -387,7 +356,7 @@ export function DataUpdateDialog({ onDataLoaded, onClose }: DataUpdateDialogProp
               {parseResult?.success && (
                 <Button onClick={handleApply}>
                   <CheckCircle className="h-4 w-4 mr-2" />
-                  Apply Data
+                  Apply & Save
                 </Button>
               )}
               <Button variant="outline" onClick={handleReset}>

src/components/layout/AppSidebar.tsx

@@ -18,6 +18,7 @@ import {
   ChevronRight,
   Cpu,
   Share2,
+  Thermometer,
 } from "lucide-react";
 import { NavLink } from "@/components/NavLink";
 import { useLocation } from "react-router-dom";
@@ -40,6 +41,7 @@ const mainItems = [
   { title: "Work Package Graph", url: "/graph", icon: Share2 },
   { title: "Documentation", url: "/documentation", icon: BookOpen },
   { title: "Gap Analysis", url: "/analysis", icon: Search },
+  { title: "Selected Sensors", url: "/sensors", icon: Thermometer },
   { title: "ESP-IDF Helper", url: "/esp-idf", icon: Cpu },
 ];
 

src/hooks/useDocumentation.ts

@@ -3,8 +3,9 @@ import { DocumentFile } from '@/types/documentation';
 
 const STORAGE_KEY = 'documentation_files';
 
-// Default documentation structure
+// Default documentation structure - updated with all feature groups
 const defaultDocuments: DocumentFile[] = [
+  // System Overview
   {
     id: 'about-asf',
     title: 'About ASF (Agricultural Sensor Framework)',
@@ -17,16 +18,26 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'system-assumptions',
     title: 'System Assumptions & Limitations',
-    description: 'Design constraints and environmental assumptions.',
+    description: 'Design constraints, environmental assumptions, and system limitations.',
     category: 'System Overview',
     content: '# System Assumptions\n\nUpload the System_Assumptions_Limitations.md file to see full documentation.',
     fileName: 'System_Assumptions_Limitations.md',
     lastUpdated: new Date().toISOString()
   },
+  {
+    id: 'cross-feature-constraints',
+    title: 'Cross-Feature Constraints',
+    description: 'Mandatory architectural rules applying across multiple features.',
+    category: 'System Overview',
+    content: '# Cross-Feature Constraints\n\nUpload the Cross-Feature_Constraints.md file to see full documentation.',
+    fileName: 'Cross-Feature_Constraints.md',
+    lastUpdated: new Date().toISOString()
+  },
+  // Feature Groups
   {
     id: 'fg-daq',
     title: 'FG-DAQ: Data Acquisition',
-    description: 'Sensor reading, sampling, and data collection features.',
+    description: 'Multi-sensor data acquisition, high-frequency sampling, and timestamped data generation.',
     category: 'Feature Groups',
     content: '# Data Acquisition Features\n\nUpload the DAQ_Sensor_Data_Acquisition_Features.md file to see full documentation.',
     fileName: 'DAQ_Sensor_Data_Acquisition_Features.md',
@@ -35,7 +46,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-dqc',
     title: 'FG-DQC: Quality & Calibration',
-    description: 'Data validation, calibration management, and quality assurance.',
+    description: 'Sensor identification, slot compatibility, fault detection, and calibration management.',
     category: 'Feature Groups',
     content: '# Quality & Calibration Features\n\nUpload the DQC_Data_Quality_Calibration_Features.md file to see full documentation.',
     fileName: 'DQC_Data_Quality_Calibration_Features.md',
@@ -44,7 +55,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-com',
     title: 'FG-COM: Communication',
-    description: 'Network connectivity and data transmission features.',
+    description: 'MQTT over TLS 1.2, ESP-NOW peer communication, CBOR payloads, and LoRa fallback.',
     category: 'Feature Groups',
     content: '# Communication Features\n\nUpload the COM_Communication_Features.md file to see full documentation.',
     fileName: 'COM_Communication_Features.md',
@@ -53,7 +64,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-diag',
     title: 'FG-DIAG: Diagnostics',
-    description: 'System health monitoring and fault detection.',
+    description: 'Fault detection, classification, diagnostic code registry, and health monitoring.',
     category: 'Feature Groups',
     content: '# Diagnostics Features\n\nUpload the DIAG_Diagnostics_Health_Monitoring_Features.md file to see full documentation.',
     fileName: 'DIAG_Diagnostics_Health_Monitoring_Features.md',
@@ -62,7 +73,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-data',
     title: 'FG-DATA: Persistence',
-    description: 'Data storage and retention management.',
+    description: 'Data Pool (DP) component, SD card storage, NVS management, and data retention.',
     category: 'Feature Groups',
     content: '# Data Persistence Features\n\nUpload the DATA_Persistence_Data_Management_Features.md file to see full documentation.',
     fileName: 'DATA_Persistence_Data_Management_Features.md',
@@ -71,7 +82,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-ota',
     title: 'FG-OTA: Over-The-Air Updates',
-    description: 'Firmware and configuration update mechanisms.',
+    description: 'A/B partitioning, SHA-256 verification, rollback mechanism, and update negotiation.',
     category: 'Feature Groups',
     content: '# OTA Update Features\n\nUpload the OTA_Firmware_Update_OTA_Features.md file to see full documentation.',
     fileName: 'OTA_Firmware_Update_OTA_Features.md',
@@ -79,8 +90,8 @@ const defaultDocuments: DocumentFile[] = [
   },
   {
     id: 'fg-sec',
-    title: 'FG-SEC: Security',
+    title: 'FG-SEC: Security & Safety',
-    description: 'Authentication, encryption, and access control.',
+    description: 'Secure Boot V2, flash encryption AES-256, mTLS with X.509, and anti-rollback.',
     category: 'Feature Groups',
     content: '# Security Features\n\nUpload the SEC_Security_Safety_Features.md file to see full documentation.',
     fileName: 'SEC_Security_Safety_Features.md',
@@ -89,21 +100,50 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'fg-sys',
     title: 'FG-SYS: System Management',
-    description: 'State machine, teardown, and local HMI.',
+    description: 'FSM with 11 states, controlled teardown, OLED HMI, and debug session support.',
     category: 'Feature Groups',
     content: '# System Management Features\n\nUpload the SYS_System_Management_Features.md file to see full documentation.',
     fileName: 'SYS_System_Management_Features.md',
     lastUpdated: new Date().toISOString()
   },
+  {
+    id: 'fg-hw',
+    title: 'FG-HW: Hardware Abstraction',
+    description: 'Sensor Abstraction Layer (SAL), interface abstraction, and storage abstraction.',
+    category: 'Feature Groups',
+    content: '# Hardware Abstraction Features\n\nUpload the HW_Hardware_Abstraction_Features.md file to see full documentation.',
+    fileName: 'HW_Hardware_Abstraction_Features.md',
+    lastUpdated: new Date().toISOString()
+  },
+  {
+    id: 'fg-pwr',
+    title: 'FG-PWR: Power & Fault Handling',
+    description: 'Brownout detection, power-loss protection, supercapacitor support, and recovery.',
+    category: 'Feature Groups',
+    content: '# Power & Fault Handling Features\n\nUpload the PWR_Power_Fault_Handling_Features.md file to see full documentation.',
+    fileName: 'PWR_Power_Fault_Handling_Features.md',
+    lastUpdated: new Date().toISOString()
+  },
+  // State Machine & Failure Handling
   {
     id: 'state-machine',
     title: 'System State Machine Specification',
-    description: 'Formal definition of all operational states and transitions.',
+    description: 'Complete FSM with 11 states: INIT, RUNNING, WARNING, FAULT, TEARDOWN, OTA_PREP, etc.',
     category: 'State Machine',
     content: '# State Machine Specification\n\nUpload the System_State_Machine_Specification.md file to see full documentation.',
     fileName: 'System_State_Machine_Specification.md',
     lastUpdated: new Date().toISOString()
   },
+  {
+    id: 'failure-handling',
+    title: 'Failure Handling Model',
+    description: 'Fault taxonomy, severity levels, escalation rules, and recovery behaviors.',
+    category: 'State Machine',
+    content: '# Failure Handling Model\n\nUpload the Failure_Handling_Model.md file to see full documentation.',
+    fileName: 'Failure_Handling_Model.md',
+    lastUpdated: new Date().toISOString()
+  },
+  // Requirements
   {
     id: 'srs',
     title: 'Software Requirements Specification (SRS)',
@@ -113,6 +153,16 @@ const defaultDocuments: DocumentFile[] = [
     fileName: 'SRS.md',
     lastUpdated: new Date().toISOString()
   },
+  {
+    id: 'system-review',
+    title: 'System Review Checklist',
+    description: 'Pre-implementation verification checklist for requirements and architecture.',
+    category: 'Requirements',
+    content: '# System Review Checklist\n\nUpload the System_Review_Checklist.md file to see full documentation.',
+    fileName: 'System_Review_Checklist.md',
+    lastUpdated: new Date().toISOString()
+  },
+  // Traceability & Verification
   {
     id: 'traceability',
     title: 'Annex A: Traceability Matrix',
@@ -125,16 +175,17 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'vv-matrix',
     title: 'V&V Matrix',
-    description: 'Verification and Validation method assignments.',
+    description: 'Verification methods (UT, IT, HIL, REV, ANAL) and acceptance criteria.',
     category: 'Traceability & Verification',
     content: '# V&V Matrix\n\nUpload the VV_Matrix.md file to see full documentation.',
     fileName: 'VV_Matrix.md',
     lastUpdated: new Date().toISOString()
   },
+  // Interfaces & Budgets
   {
     id: 'interfaces',
     title: 'Annex B: External Interfaces',
-    description: 'Hardware and software interface specifications.',
+    description: 'Main Hub communication, sensor interfaces, storage, and HMI specifications.',
     category: 'Interfaces & Budgets',
     content: '# External Interfaces\n\nUpload the Annex_B_Interfaces.md file to see full documentation.',
     fileName: 'Annex_B_Interfaces.md',
@@ -143,7 +194,7 @@ const defaultDocuments: DocumentFile[] = [
   {
     id: 'budgets',
     title: 'Annex C: Resource Budgets',
-    description: 'RAM, Flash, CPU, and timing allocations.',
+    description: 'RAM ≤225KB, Flash ≤5.05MB, CPU ≤42%, timing budgets, and partition layout.',
     category: 'Interfaces & Budgets',
     content: '# Resource Budgets\n\nUpload the Annex_C_Budgets.md file to see full documentation.',
     fileName: 'Annex_C_Budgets.md',

src/hooks/useTraceabilityData.ts

@@ -1,6 +1,8 @@
 import { useState, useEffect, useCallback } from 'react';
 import { WorkPackage, TraceabilityData, WorkPackageType } from '@/types/traceability';
 
+const STORAGE_KEY = 'traceability_data';
+
 export function useTraceabilityData() {
   const [data, setData] = useState<TraceabilityData | null>(null);
   const [loading, setLoading] = useState(true);
@@ -16,11 +18,6 @@ export function useTraceabilityData() {
     const cleanText = csvText.replace(/^\uFEFF/, '');
     
     const workPackages: WorkPackage[] = [];
-    
-    // CSV format: ID,Type,Status,Title,Description,Parent_ID,Relations
-    // Description can be multi-line and contain HTML
-    
-    let pos = 0;
     const lines = cleanText.split('\n');
     logs.push(`[CSV Parser] Total lines: ${lines.length}`);
     
@@ -31,7 +28,6 @@ export function useTraceabilityData() {
     let currentRow: string[] = [];
     let inQuotedField = false;
     let currentField = '';
-    let lineNum = 1;
     
     // Process character by character for proper CSV parsing
     const content = lines.slice(1).join('\n');
@@ -43,11 +39,9 @@ export function useTraceabilityData() {
       if (inQuotedField) {
         if (char === '"') {
           if (nextChar === '"') {
-            // Escaped quote
             currentField += '"';
             i++;
           } else {
-            // End of quoted field
             inQuotedField = false;
           }
         } else {
@@ -55,7 +49,6 @@ export function useTraceabilityData() {
         }
       } else {
         if (char === '"' && currentField === '') {
-          // Start of quoted field
           inQuotedField = true;
         } else if (char === ',') {
           currentRow.push(currentField);
@@ -64,11 +57,9 @@ export function useTraceabilityData() {
           currentRow.push(currentField);
           currentField = '';
           
-          // Process the completed row if it has enough fields and starts with an ID
           if (currentRow.length >= 4 && /^\d+$/.test(currentRow[0]?.trim())) {
             const [id, type, status, title, description = '', parentId = '', relations = ''] = currentRow;
-            
+            const wpType = type?.toLowerCase().replace(/\s+/g, ' ').trim() as WorkPackageType;
-            const wpType = type?.toLowerCase().replace(/\s+/g, '') as WorkPackageType;
             
             workPackages.push({
               id: parseInt(id, 10),
@@ -86,7 +77,6 @@ export function useTraceabilityData() {
           }
           
           currentRow = [];
-          lineNum++;
         } else {
           currentField += char;
         }
@@ -98,7 +88,7 @@ export function useTraceabilityData() {
       currentRow.push(currentField);
       if (currentRow.length >= 4 && /^\d+$/.test(currentRow[0]?.trim())) {
         const [id, type, status, title, description = '', parentId = '', relations = ''] = currentRow;
-        const wpType = type?.toLowerCase().replace(/\s+/g, '') as WorkPackageType;
+        const wpType = type?.toLowerCase().replace(/\s+/g, ' ').trim() as WorkPackageType;
         
         workPackages.push({
           id: parseInt(id, 10),
@@ -124,6 +114,7 @@ export function useTraceabilityData() {
     return { workPackages, logs };
   }, []);
 
+  // Try to load from localStorage first, then fall back to CSV file
   const loadData = useCallback(async () => {
     setLoading(true);
     setError(null);
@@ -131,7 +122,31 @@ export function useTraceabilityData() {
     newLogs.push(`[Loader] Starting data load at ${new Date().toLocaleTimeString()}`);
     
     try {
-      // Add cache-busting to force fresh data
+      // Check localStorage first for persisted data
+      const storedData = localStorage.getItem(STORAGE_KEY);
+      if (storedData) {
+        try {
+          const parsed = JSON.parse(storedData);
+          if (parsed.workPackages && parsed.workPackages.length > 0) {
+            newLogs.push(`[Loader] Found persisted data: ${parsed.workPackages.length} work packages`);
+            newLogs.push(`[Loader] Last updated: ${parsed.lastUpdated}`);
+            
+            const lastUpdatedDate = new Date(parsed.lastUpdated);
+            setData({
+              lastUpdated: lastUpdatedDate,
+              workPackages: parsed.workPackages
+            });
+            setLastUpdated(lastUpdatedDate);
+            setParseLog(newLogs);
+            setLoading(false);
+            return;
+          }
+        } catch (e) {
+          newLogs.push(`[Loader] Could not parse stored data, loading from CSV`);
+        }
+      }
+      
+      // Fall back to CSV file
       const cacheBuster = `?t=${Date.now()}`;
       newLogs.push(`[Loader] Fetching /data/traceability_export.csv${cacheBuster}`);
       
@@ -145,18 +160,71 @@ export function useTraceabilityData() {
       
       const { workPackages, logs } = parseCSV(csvText);
       
-      // Combine loader logs with parser logs
       const allLogs = [...newLogs, ...logs];
       allLogs.push(`[Loader] Data load complete at ${new Date().toLocaleTimeString()}`);
       
       setParseLog(allLogs);
       
       const now = new Date();
-      setData({
+      const dataObj = {
         lastUpdated: now,
         workPackages
-      });
+      };
+      setData(dataObj);
       setLastUpdated(now);
+      
+      // Persist to localStorage for next load
+      localStorage.setItem(STORAGE_KEY, JSON.stringify({
+        lastUpdated: now.toISOString(),
+        workPackages
+      }));
+      
+    } catch (err) {
+      const errorMsg = err instanceof Error ? err.message : 'Unknown error';
+      newLogs.push(`[Loader] ERROR: ${errorMsg}`);
+      setParseLog(newLogs);
+      setError(errorMsg);
+    } finally {
+      setLoading(false);
+    }
+  }, [parseCSV]);
+
+  // Force reload from CSV file (ignoring localStorage)
+  const reloadFromCSV = useCallback(async () => {
+    setLoading(true);
+    setError(null);
+    const newLogs: string[] = [];
+    newLogs.push(`[Loader] Force reloading from CSV file...`);
+    
+    try {
+      const cacheBuster = `?t=${Date.now()}`;
+      newLogs.push(`[Loader] Fetching /data/traceability_export.csv${cacheBuster}`);
+      
+      const response = await fetch(`/data/traceability_export.csv${cacheBuster}`);
+      if (!response.ok) {
+        throw new Error(`Failed to load: ${response.status} ${response.statusText}`);
+      }
+      
+      const csvText = await response.text();
+      newLogs.push(`[Loader] Received ${csvText.length} bytes`);
+      
+      const { workPackages, logs } = parseCSV(csvText);
+      
+      const allLogs = [...newLogs, ...logs];
+      allLogs.push(`[Loader] CSV reload complete`);
+      
+      setParseLog(allLogs);
+      
+      const now = new Date();
+      setData({ lastUpdated: now, workPackages });
+      setLastUpdated(now);
+      
+      // Update localStorage with new data
+      localStorage.setItem(STORAGE_KEY, JSON.stringify({
+        lastUpdated: now.toISOString(),
+        workPackages
+      }));
+      
     } catch (err) {
       const errorMsg = err instanceof Error ? err.message : 'Unknown error';
       newLogs.push(`[Loader] ERROR: ${errorMsg}`);
@@ -171,6 +239,20 @@ export function useTraceabilityData() {
     loadData();
   }, [loadData]);
 
+  // Update data and persist
+  const updateData = useCallback((newData: TraceabilityData) => {
+    setData(newData);
+    setLastUpdated(newData.lastUpdated);
+    
+    // Persist to localStorage
+    localStorage.setItem(STORAGE_KEY, JSON.stringify({
+      lastUpdated: newData.lastUpdated.toISOString(),
+      workPackages: newData.workPackages
+    }));
+    
+    setParseLog(prev => [...prev, `[Update] Data updated with ${newData.workPackages.length} work packages`]);
+  }, []);
+
   useEffect(() => {
     loadData();
   }, [loadData]);
@@ -195,9 +277,10 @@ export function useTraceabilityData() {
     error,
     lastUpdated,
     refresh,
+    reloadFromCSV,
     groupedByType,
     typeCounts,
     parseLog,
-    setData // Expose setData for manual data updates
+    setData: updateData
   };
 }

src/lib/traceabilityUtils.ts

@@ -0,0 +1,323 @@
+/**
+ * Traceability utilities for building flexible cross-type relationships
+ */
+
+import { WorkPackage, ParsedRelation, WorkPackageType } from '@/types/traceability';
+
+export interface TraceabilityNode {
+  workPackage: WorkPackage;
+  linkedItems: LinkedItem[];
+}
+
+export interface LinkedItem {
+  workPackage: WorkPackage;
+  relationType: string;
+  direction: 'incoming' | 'outgoing';
+}
+
+export interface TraceabilityGraph {
+  nodes: Map<number, TraceabilityNode>;
+  edges: TraceabilityEdge[];
+}
+
+export interface TraceabilityEdge {
+  sourceId: number;
+  targetId: number;
+  relationType: string;
+}
+
+// Type display configuration
+export const TYPE_CONFIG: Record<string, { color: string; bgColor: string; borderColor: string; icon: string }> = {
+  'feature': { color: 'text-purple-600', bgColor: 'bg-purple-500/10', borderColor: 'border-purple-500/20', icon: 'Target' },
+  'sw_feature': { color: 'text-purple-500', bgColor: 'bg-purple-500/10', borderColor: 'border-purple-500/20', icon: 'Target' },
+  'epic': { color: 'text-indigo-600', bgColor: 'bg-indigo-500/10', borderColor: 'border-indigo-500/20', icon: 'Layers' },
+  'user story': { color: 'text-violet-600', bgColor: 'bg-violet-500/10', borderColor: 'border-violet-500/20', icon: 'User' },
+  'requirements': { color: 'text-blue-600', bgColor: 'bg-blue-500/10', borderColor: 'border-blue-500/20', icon: 'CheckSquare' },
+  'swreq': { color: 'text-green-600', bgColor: 'bg-green-500/10', borderColor: 'border-green-500/20', icon: 'FileText' },
+  'software test case': { color: 'text-amber-600', bgColor: 'bg-amber-500/10', borderColor: 'border-amber-500/20', icon: 'TestTube' },
+  'system test': { color: 'text-orange-600', bgColor: 'bg-orange-500/10', borderColor: 'border-orange-500/20', icon: 'TestTube' },
+  'task': { color: 'text-gray-600', bgColor: 'bg-gray-500/10', borderColor: 'border-gray-500/20', icon: 'CheckCircle' },
+  'bug': { color: 'text-red-600', bgColor: 'bg-red-500/10', borderColor: 'border-red-500/20', icon: 'Bug' },
+  'component': { color: 'text-cyan-600', bgColor: 'bg-cyan-500/10', borderColor: 'border-cyan-500/20', icon: 'Box' },
+  'interface': { color: 'text-teal-600', bgColor: 'bg-teal-500/10', borderColor: 'border-teal-500/20', icon: 'Link' },
+  'risk': { color: 'text-rose-600', bgColor: 'bg-rose-500/10', borderColor: 'border-rose-500/20', icon: 'AlertTriangle' },
+  'milestone': { color: 'text-yellow-600', bgColor: 'bg-yellow-500/10', borderColor: 'border-yellow-500/20', icon: 'Flag' },
+  'phase': { color: 'text-slate-600', bgColor: 'bg-slate-500/10', borderColor: 'border-slate-500/20', icon: 'Calendar' },
+  'summary task': { color: 'text-stone-600', bgColor: 'bg-stone-500/10', borderColor: 'border-stone-500/20', icon: 'List' },
+};
+
+export function getTypeConfig(type: string) {
+  return TYPE_CONFIG[type.toLowerCase()] || { 
+    color: 'text-gray-600', 
+    bgColor: 'bg-gray-500/10', 
+    borderColor: 'border-gray-500/20',
+    icon: 'File'
+  };
+}
+
+export function parseRelations(relationsStr: string): ParsedRelation[] {
+  if (!relationsStr) return [];
+  const relations: ParsedRelation[] = [];
+  const matches = relationsStr.matchAll(/(\w+)\(#(\d+)\)/g);
+  for (const match of matches) {
+    relations.push({
+      type: match[1],
+      targetId: parseInt(match[2], 10),
+    });
+  }
+  return relations;
+}
+
+/**
+ * Build a complete traceability graph from work packages
+ * This creates bidirectional relationships regardless of type
+ */
+export function buildTraceabilityGraph(workPackages: WorkPackage[]): TraceabilityGraph {
+  const nodes = new Map<number, TraceabilityNode>();
+  const edges: TraceabilityEdge[] = [];
+  const wpById = new Map(workPackages.map(wp => [wp.id, wp]));
+
+  // Initialize all nodes
+  workPackages.forEach(wp => {
+    nodes.set(wp.id, {
+      workPackage: wp,
+      linkedItems: []
+    });
+  });
+
+  // Build edges from relations and parent links
+  workPackages.forEach(wp => {
+    const node = nodes.get(wp.id)!;
+
+    // Parse explicit relations
+    const relations = parseRelations(wp.relations);
+    relations.forEach(rel => {
+      const targetWp = wpById.get(rel.targetId);
+      if (targetWp) {
+        // Add outgoing link
+        node.linkedItems.push({
+          workPackage: targetWp,
+          relationType: rel.type,
+          direction: 'outgoing'
+        });
+
+        // Add edge
+        edges.push({
+          sourceId: wp.id,
+          targetId: rel.targetId,
+          relationType: rel.type
+        });
+
+        // Add incoming link to target
+        const targetNode = nodes.get(rel.targetId);
+        if (targetNode) {
+          targetNode.linkedItems.push({
+            workPackage: wp,
+            relationType: rel.type,
+            direction: 'incoming'
+          });
+        }
+      }
+    });
+
+    // Handle parent-child relationship
+    if (wp.parentId) {
+      const parentId = parseInt(wp.parentId, 10);
+      const parentWp = wpById.get(parentId);
+      if (parentWp) {
+        node.linkedItems.push({
+          workPackage: parentWp,
+          relationType: 'parent',
+          direction: 'outgoing'
+        });
+
+        edges.push({
+          sourceId: wp.id,
+          targetId: parentId,
+          relationType: 'parent'
+        });
+
+        const parentNode = nodes.get(parentId);
+        if (parentNode) {
+          parentNode.linkedItems.push({
+            workPackage: wp,
+            relationType: 'child',
+            direction: 'incoming'
+          });
+        }
+      }
+    }
+  });
+
+  return { nodes, edges };
+}
+
+/**
+ * Get all items linked to a specific work package (any type)
+ */
+export function getLinkedItems(
+  wpId: number, 
+  graph: TraceabilityGraph, 
+  filterTypes?: WorkPackageType[]
+): LinkedItem[] {
+  const node = graph.nodes.get(wpId);
+  if (!node) return [];
+  
+  let items = node.linkedItems;
+  if (filterTypes && filterTypes.length > 0) {
+    items = items.filter(item => filterTypes.includes(item.workPackage.type));
+  }
+  
+  return items;
+}
+
+/**
+ * Find all work packages that link to a given work package
+ */
+export function findIncomingLinks(
+  wpId: number,
+  graph: TraceabilityGraph
+): LinkedItem[] {
+  const node = graph.nodes.get(wpId);
+  if (!node) return [];
+  return node.linkedItems.filter(item => item.direction === 'incoming');
+}
+
+/**
+ * Find all work packages that a given work package links to
+ */
+export function findOutgoingLinks(
+  wpId: number,
+  graph: TraceabilityGraph
+): LinkedItem[] {
+  const node = graph.nodes.get(wpId);
+  if (!node) return [];
+  return node.linkedItems.filter(item => item.direction === 'outgoing');
+}
+
+/**
+ * Build hierarchical chains starting from a given type
+ * This is flexible - can start from any type and trace to any related types
+ */
+export interface FlexibleChain {
+  root: WorkPackage;
+  children: FlexibleChainNode[];
+  totalDescendants: number;
+}
+
+export interface FlexibleChainNode {
+  workPackage: WorkPackage;
+  relationType: string;
+  children: FlexibleChainNode[];
+}
+
+export function buildChainsFromType(
+  workPackages: WorkPackage[],
+  rootType: WorkPackageType,
+  maxDepth: number = 4
+): FlexibleChain[] {
+  const graph = buildTraceabilityGraph(workPackages);
+  const roots = workPackages.filter(wp => wp.type === rootType);
+  const visited = new Set<number>();
+
+  function buildChildNodes(wpId: number, depth: number): FlexibleChainNode[] {
+    if (depth >= maxDepth) return [];
+    
+    const node = graph.nodes.get(wpId);
+    if (!node) return [];
+
+    const children: FlexibleChainNode[] = [];
+    
+    // Get all linked items (both directions)
+    node.linkedItems.forEach(linked => {
+      if (!visited.has(linked.workPackage.id)) {
+        visited.add(linked.workPackage.id);
+        children.push({
+          workPackage: linked.workPackage,
+          relationType: linked.relationType,
+          children: buildChildNodes(linked.workPackage.id, depth + 1)
+        });
+      }
+    });
+
+    return children;
+  }
+
+  return roots.map(root => {
+    visited.clear();
+    visited.add(root.id);
+    const children = buildChildNodes(root.id, 0);
+    
+    function countDescendants(nodes: FlexibleChainNode[]): number {
+      return nodes.reduce((sum, n) => sum + 1 + countDescendants(n.children), 0);
+    }
+
+    return {
+      root,
+      children,
+      totalDescendants: countDescendants(children)
+    };
+  });
+}
+
+/**
+ * Calculate coverage statistics between any two types
+ */
+export interface CoverageStats {
+  sourceType: string;
+  targetType: string;
+  totalSource: number;
+  linkedSource: number;
+  coverage: number;
+}
+
+export function calculateCoverage(
+  workPackages: WorkPackage[],
+  sourceType: WorkPackageType,
+  targetType: WorkPackageType
+): CoverageStats {
+  const graph = buildTraceabilityGraph(workPackages);
+  const sourceItems = workPackages.filter(wp => wp.type === sourceType);
+  
+  let linkedCount = 0;
+  sourceItems.forEach(source => {
+    const node = graph.nodes.get(source.id);
+    if (node) {
+      const hasLink = node.linkedItems.some(
+        item => item.workPackage.type === targetType
+      );
+      if (hasLink) linkedCount++;
+    }
+  });
+
+  return {
+    sourceType,
+    targetType,
+    totalSource: sourceItems.length,
+    linkedSource: linkedCount,
+    coverage: sourceItems.length > 0 ? Math.round((linkedCount / sourceItems.length) * 100) : 0
+  };
+}
+
+/**
+ * Get relationship matrix between all types
+ */
+export function getRelationshipMatrix(workPackages: WorkPackage[]): Map<string, Map<string, number>> {
+  const matrix = new Map<string, Map<string, number>>();
+  const graph = buildTraceabilityGraph(workPackages);
+
+  graph.edges.forEach(edge => {
+    const sourceWp = workPackages.find(wp => wp.id === edge.sourceId);
+    const targetWp = workPackages.find(wp => wp.id === edge.targetId);
+    
+    if (sourceWp && targetWp) {
+      if (!matrix.has(sourceWp.type)) {
+        matrix.set(sourceWp.type, new Map());
+      }
+      const typeMap = matrix.get(sourceWp.type)!;
+      typeMap.set(targetWp.type, (typeMap.get(targetWp.type) || 0) + 1);
+    }
+  });
+
+  return matrix;
+}

src/pages/AnalysisPage.tsx

@@ -30,361 +30,323 @@ const budgetAnalysis = {
   cpu: { allocated: 42, budget: "80% peak", status: "ok" }
 };
 
-// Gap Analysis Data
+// Gap Analysis Data - Updated based on latest feature engineering specifications
 const gapAnalysis = [
   {
     category: "Communication (FG-COM)",
-    severity: "critical",
+    severity: "medium",
     gaps: [
       {
         id: "GAP-COM-001",
-        title: "WiFi Protocol Details Missing",
+        title: "LoRa Module Specifications Missing",
-        description: "Documents mention 'WiFi / Zigbee / LoRa' but lack specific protocol selection and rationale.",
+        description: "LoRa fallback is marked as 'optional external module' but no module selection criteria provided.",
         questions: [
-          "Which WiFi standard specifically? (802.11b/g/n all supported by ESP32-S3)",
+          "Which LoRa module model is recommended? (SX1276, SX1262, etc.)",
-          "What is the target data rate requirement?",
+          "What frequency band? (868MHz EU, 915MHz US)",
-          "Is 2.4GHz band acceptable (5GHz not supported)?",
+          "SPI or UART interface preference?"
-          "What is the expected range/coverage?"
         ],
-        recommendation: "Define primary protocol as WiFi 802.11n for best throughput. Add Zigbee/LoRa as optional fallback.",
+        recommendation: "Define approved LoRa module (recommend SX1262) with frequency band configuration.",
-        esp32Impact: "ESP32-S3 supports 802.11 b/g/n at 2.4GHz up to 150 Mbps. No 5GHz support."
+        esp32Impact: "ESP32-S3 has native SPI support for LoRa modules. No hardware limitation."
       },
       {
         id: "GAP-COM-002",
-        title: "TLS/DTLS Version Unspecified",
+        title: "ESP-NOW Encryption Details",
-        description: "Security requires TLS/DTLS but version and cipher suites are not defined.",
+        description: "ESP-NOW peer communication mentioned but encryption method not fully specified.",
         questions: [
-          "TLS 1.2 or TLS 1.3?",
+          "Use ESP-NOW built-in encryption or application-layer?",
-          "Which cipher suites are acceptable?",
+          "Key exchange mechanism for peer discovery?",
-          "Certificate management approach?",
+          "Maximum peer count for mesh scenarios?"
-          "Key rotation policy?"
         ],
-        recommendation: "Use TLS 1.2 with AES-128-GCM for ESP32-S3 hardware acceleration compatibility.",
+        recommendation: "Use ESP-NOW CCMP encryption with pre-shared LMK (Local Master Key).",
-        esp32Impact: "ESP32-S3 has hardware crypto accelerators for AES-128/256, SHA, RSA."
+        esp32Impact: "ESP-NOW supports up to 20 encrypted peers. Hardware crypto accelerated."
       },
       {
         id: "GAP-COM-003",
-        title: "Peer-to-Peer Protocol Undefined",
+        title: "CBOR Schema Version Management",
-        description: "F-COM-03 mentions peer Sensor Hub communication but no protocol specified.",
+        description: "CBOR versioned payloads mentioned but schema versioning strategy not defined.",
         questions: [
-          "What transport for peer-to-peer? (WiFi Direct, BLE, ESP-NOW?)",
+          "How are schema versions negotiated?",
-          "What is the maximum peer count?",
+          "Backward compatibility requirements?",
-          "Discovery mechanism?"
+          "Schema registry location?"
         ],
-        recommendation: "Consider ESP-NOW for low-latency peer communication (250 byte payload, no WiFi connection needed).",
+        recommendation: "Include schema version in CBOR header. Maintain N-1 backward compatibility.",
-        esp32Impact: "ESP-NOW supported natively. BLE Mesh also available."
+        esp32Impact: "No hardware impact. Software versioning only."
-      },
-      {
-        id: "GAP-COM-004",
-        title: "Heartbeat/Keep-Alive Details Missing",
-        description: "30-second timeout mentioned but no heartbeat interval or mechanism defined.",
-        questions: [
-          "What is the heartbeat interval?",
-          "Payload content of heartbeat?",
-          "Exponential backoff parameters for reconnection?"
-        ],
-        recommendation: "Define 10-second heartbeat interval with 3 missed = disconnected.",
-        esp32Impact: "No specific hardware limitation."
       }
     ]
   },
   {
     category: "Data Acquisition (FG-DAQ)",
-    severity: "high",
+    severity: "low",
     gaps: [
       {
         id: "GAP-DAQ-001",
-        title: "Specific Sensor Models Not Defined",
+        title: "Sensor Warm-Up State Transitions",
-        description: "Sensor types listed (Temp, Humidity, CO2, etc.) but no specific models or part numbers.",
+        description: "Sensor states defined (INIT, WARMUP, STABLE, etc.) but warm-up duration per sensor type not specified.",
         questions: [
-          "What are the specific sensor models/part numbers?",
+          "What are warm-up times for SHT4xI, BME680, ENS160, SEN6x?",
-          "What are the I2C addresses for each sensor type?",
+          "Should WARMUP readings be discarded or flagged?",
-          "Are there alternative/fallback sensor models?"
+          "Power-on sequencing between sensors?"
         ],
-        recommendation: "Create a Sensor Catalog with approved models, I2C addresses, and driver requirements.",
+        recommendation: "Define per-sensor warm-up: SHT4xI (1ms), BME680 (3s gas), ENS160 (3min initial), SEN6x (30s).",
-        esp32Impact: "ESP32-S3 has 2x I2C buses - ensure no address conflicts if using multiple sensors."
+        esp32Impact: "Software timing only. Consider FreeRTOS delayed start for sensors."
       },
       {
         id: "GAP-DAQ-002",
-        title: "ADC Channel Allocation Undefined",
+        title: "Multi-Sensor Fusion Strategy",
-        description: "Analog sensors mentioned but no ADC channel assignment or calibration approach.",
+        description: "Multiple sensors measure overlapping parameters (T/RH from SHT4xI, BME680, SEN6x). Fusion not specified.",
         questions: [
-          "How many analog sensors are expected?",
+          "Which sensor is primary for temperature/humidity?",
-          "Which ADC channels will be used?",
+          "Cross-validation threshold for sensor disagreement?",
-          "What reference voltage?",
+          "Fallback priority order?"
-          "ADC calibration approach?"
         ],
-        recommendation: "Define ADC channel map. Use eFuse-stored calibration for ESP32-S3 ADC linearity correction.",
+        recommendation: "Primary: SHT4xI for T/RH (highest accuracy). Cross-validate against BME680/SEN6x.",
-        esp32Impact: "ESP32-S3 has 20 ADC channels, 12-bit resolution. Some GPIOs are ADC1 (usable with WiFi), some ADC2 (conflicts with WiFi)."
+        esp32Impact: "CPU budget allows sensor fusion algorithms."
-      },
-      {
-        id: "GAP-DAQ-003",
-        title: "Sensor Warm-Up Times Not Specified",
-        description: "Many gas sensors (CO2, NH3) require warm-up periods not addressed.",
-        questions: [
-          "What are warm-up time requirements per sensor type?",
-          "How should readings during warm-up be handled?",
-          "Power-on sequencing requirements?"
-        ],
-        recommendation: "Add sensor warm-up state handling. Typical: CO2 sensors 30-60 seconds, MOS sensors 24-48 hours for first use.",
-        esp32Impact: "No specific hardware impact, software timing only."
-      },
-      {
-        id: "GAP-DAQ-004",
-        title: "Filtering Algorithm Not Specified",
-        description: "High-frequency sampling mentions filtering but algorithm type not defined.",
-        questions: [
-          "Moving average, median filter, Kalman, or other?",
-          "Filter window size configurable?",
-          "Outlier rejection criteria?"
-        ],
-        recommendation: "Recommend median filter (robust to outliers) with configurable window size in Machine Constants.",
-        esp32Impact: "CPU budget allows for moderate filtering complexity."
       }
     ]
   },
   {
     category: "Security (FG-SEC)",
-    severity: "critical",
+    severity: "medium",
     gaps: [
       {
         id: "GAP-SEC-001",
-        title: "Key Management Lifecycle Undefined",
+        title: "Certificate Provisioning Workflow",
-        description: "Secure boot and encryption mentioned but key provisioning and rotation not specified.",
+        description: "mTLS with X.509 specified but certificate provisioning during manufacturing not detailed.",
         questions: [
-          "How are keys provisioned during manufacturing?",
+          "Factory provisioning via UART/JTAG?",
-          "Key rotation policy for TLS certificates?",
+          "Certificate signing authority (CA) chain?",
-          "Key storage location (eFuse vs NVS encrypted)?",
+          "Device CSR generation or pre-signed?"
-          "Revocation mechanism?"
         ],
-        recommendation: "Define key provisioning during manufacturing, use eFuse for secure boot keys, NVS encrypted partition for runtime keys.",
+        recommendation: "Factory provision root CA + device certificate via secure JTAG. Use ESP-IDF secure provisioning.",
-        esp32Impact: "ESP32-S3 has eFuse for permanent key storage and hardware secure boot support."
+        esp32Impact: "ESP32-S3 supports secure JTAG provisioning. eFuse protection available."
       },
       {
         id: "GAP-SEC-002",
-        title: "Authentication Method Not Specified",
+        title: "eFuse Burn Sequence Documentation",
-        description: "Authentication required but mechanism not defined (certificates, PSK, tokens?).",
+        description: "eFuse for secure boot and anti-rollback mentioned but burn sequence/order not documented.",
         questions: [
-          "Mutual TLS with certificates?",
+          "eFuse programming order for production?",
-          "Pre-shared keys?",
+          "Testing strategy before permanent eFuse burn?",
-          "Device identity provisioning?"
+          "Recovery if eFuse burn fails mid-sequence?"
         ],
-        recommendation: "Use X.509 certificates with device-unique identity for mutual TLS.",
+        recommendation: "Document eFuse burn sequence: 1) Flash encryption key, 2) Secure boot key, 3) JTAG disable.",
-        esp32Impact: "ESP32-S3 supports X.509, may need external crypto chip for many certificates."
+        esp32Impact: "eFuse operations are irreversible. Production checklist critical."
       },
       {
         id: "GAP-SEC-003",
-        title: "Anti-Rollback Policy Vague",
+        title: "Debug Port Security in Production",
-        description: "Rollback prevention mentioned as 'optional future' but critical for security.",
+        description: "Debug session support mentioned but production debug port security not fully addressed.",
         questions: [
-          "Is anti-rollback mandatory?",
+          "JTAG disabled in production builds?",
-          "What version tracking mechanism?",
+          "Secure debug authentication method?",
-          "Emergency recovery procedure?"
+          "Debug log filtering for sensitive data?"
         ],
-        recommendation: "Implement anti-rollback using ESP32-S3 eFuse version counter.",
+        recommendation: "Disable JTAG via eFuse in production. Use authenticated debug over UART with session tokens.",
-        esp32Impact: "ESP32-S3 supports secure version tracking in eFuse (limited burn count)."
+        esp32Impact: "ESP32-S3 supports eFuse-based JTAG disable and secure debug."
       }
     ]
   },
   {
     category: "OTA Updates (FG-OTA)",
-    severity: "high",
+    severity: "low",
     gaps: [
       {
         id: "GAP-OTA-001",
-        title: "Partition Scheme Not Defined",
+        title: "Factory Partition Use Case",
-        description: "Dual-partition OTA implied but specific partition layout not documented.",
+        description: "Factory partition marked as 'optional' in partition table. Recovery scenario unclear.",
         questions: [
-          "What is the partition table layout?",
+          "When is factory partition used for recovery?",
-          "Factory partition included?",
+          "How to trigger factory reset from corrupted OTA?",
-          "Partition sizes for app0/app1?",
+          "Factory partition size requirements?"
-          "NVS partition size?"
         ],
-        recommendation: "Define: factory (4MB) + ota_0 (4MB) or app0 + app1 if 8MB flash. Reserve 64KB for NVS.",
+        recommendation: "Include minimal factory partition (~1MB) for emergency recovery via GPIO boot mode.",
-        esp32Impact: "8MB flash allows dual 3.5MB app partitions with ample NVS/data space."
+        esp32Impact: "8MB flash can accommodate factory + 2x OTA partitions."
       },
       {
         id: "GAP-OTA-002",
-        title: "OTA Chunk Size Not Specified",
+        title: "OTA Progress Reporting Granularity",
-        description: "Firmware transferred 'in chunks' but chunk size and protocol not defined.",
+        description: "OTA status reporting mentioned but progress indication granularity not specified.",
         questions: [
-          "What chunk size? (4KB, 16KB, other?)",
+          "Progress update frequency (per chunk, percentage)?",
-          "Acknowledgment per chunk or batch?",
+          "OLED display update during OTA?",
-          "Resume capability after interruption?"
+          "MQTT progress topic structure?"
         ],
-        recommendation: "Use 4KB chunks with per-chunk CRC and resume from last successful chunk.",
+        recommendation: "Report progress every 5% or 30 seconds, whichever comes first. Update OLED display.",
-        esp32Impact: "4KB aligns with flash page size for efficient writes."
+        esp32Impact: "No hardware limitation. Balance progress updates vs. flash write performance."
-      },
-      {
-        id: "GAP-OTA-003",
-        title: "Rollback Trigger Conditions Undefined",
-        description: "Rollback mentioned but trigger conditions not specified.",
-        questions: [
-          "What triggers automatic rollback?",
-          "Timeout for marking update successful?",
-          "Health check criteria?"
-        ],
-        recommendation: "Implement watchdog-triggered rollback if app doesn't confirm within 60 seconds of boot.",
-        esp32Impact: "ESP32-S3 has app rollback support in bootloader."
       }
     ]
   },
   {
     category: "Persistence (FG-DATA)",
-    severity: "high",
+    severity: "medium",
     gaps: [
       {
         id: "GAP-DATA-001",
-        title: "SD Card File System Not Specified",
+        title: "SD Card Failure Detection Criteria",
-        description: "SD card storage mentioned but filesystem type not defined.",
+        description: "SD_DEGRADED state defined but specific failure detection criteria not specified.",
         questions: [
-          "FAT32, exFAT, or custom filesystem?",
+          "CRC error threshold for degraded state?",
-          "Maximum file size?",
+          "Write timeout threshold?",
-          "Directory structure?",
+          "Automatic SD card remount attempts?"
-          "Wear leveling approach?"
         ],
-        recommendation: "Use FAT32 for compatibility. Implement circular buffer with fixed-size files for wear distribution.",
+        recommendation: "Degraded after 3 consecutive CRC errors or 5s write timeout. Max 3 remount attempts.",
-        esp32Impact: "ESP-IDF supports FAT32 on SD. SPI mode vs SDMMC mode?"
+        esp32Impact: "Use ESP-IDF SDMMC error callbacks for detection."
       },
       {
         id: "GAP-DATA-002",
-        title: "Data Retention Policy Incomplete",
+        title: "Data Pool (DP) Maximum Size",
-        description: "Configurable retention mentioned but no default values or limits.",
+        description: "DP component for runtime/persistent data mentioned but maximum size not defined.",
         questions: [
-          "Default retention period?",
+          "Maximum RAM allocation for DP?",
-          "Maximum storage allocation per data type?",
+          "Number of data entries?",
-          "Overwrite priority (FIFO, priority-based)?"
+          "Priority eviction policy?"
         ],
-        recommendation: "Default 7-day retention, FIFO overwrite, 80% SD capacity for sensor data.",
+        recommendation: "DP max 32KB RAM. LRU eviction for non-critical data. Critical data always retained.",
-        esp32Impact: "No specific hardware constraint."
+        esp32Impact: "225KB RAM budget allows 32KB for DP while maintaining headroom."
       },
       {
         id: "GAP-DATA-003",
-        title: "NVS Partition Size and Usage Undefined",
+        title: "NVS Namespace Organization",
-        description: "NVS mentioned for machine constants but sizing not specified.",
+        description: "NVS for machine constants but namespace organization not documented.",
         questions: [
-          "Expected size of machine constants?",
+          "Namespace per feature group or global?",
-          "How many NVS entries expected?",
+          "Key naming convention?",
-          "NVS encryption enabled?"
+          "NVS corruption recovery?"
         ],
-        recommendation: "Allocate 64KB NVS minimum. Enable NVS encryption for sensitive data.",
+        recommendation: "Namespace per feature group (nvs_daq, nvs_com, etc.). Use NVS backup partition.",
-        esp32Impact: "ESP32-S3 supports NVS encryption with flash encryption enabled."
+        esp32Impact: "ESP32-S3 NVS supports multiple namespaces. Enable NVS encryption."
       }
     ]
   },
   {
     category: "Diagnostics (FG-DIAG)",
-    severity: "medium",
+    severity: "low",
     gaps: [
       {
         id: "GAP-DIAG-001",
-        title: "Diagnostic Code Registry Not Provided",
+        title: "Diagnostic Export Format",
-        description: "Structured diagnostic codes required but no code table provided.",
+        description: "Diagnostic persistence defined but export format for remote retrieval not specified.",
         questions: [
-          "What is the diagnostic code format?",
+          "Binary or text-based export?",
-          "What are all defined diagnostic codes?",
+          "Compression for large diagnostic logs?",
-          "Code ranges per subsystem?"
+          "Filtering options for remote query?"
         ],
-        recommendation: "Create diagnostic code registry: 0x1xxx=DAQ, 0x2xxx=COM, 0x3xxx=SEC, etc.",
+        recommendation: "CBOR binary format with optional gzip compression. Filter by severity/timestamp.",
-        esp32Impact: "No specific hardware constraint."
+        esp32Impact: "CBOR encoding consistent with COM payload format."
       },
       {
         id: "GAP-DIAG-002",
-        title: "Log Storage Capacity Undefined",
+        title: "Coredump Partition Size Validation",
-        description: "Persistent diagnostics mentioned but storage limits not specified.",
+        description: "64KB coredump partition specified but validation against actual coredump size needed.",
         questions: [
-          "Maximum log entries?",
+          "Typical coredump size with current stack sizes?",
-          "Log rotation policy?",
+          "Compression enabled for coredumps?",
-          "Crash dump storage?"
+          "Multiple coredump retention?"
         ],
-        recommendation: "1000 diagnostic entries max, FIFO rotation, separate crash dump partition.",
+        recommendation: "Enable coredump compression. 64KB sufficient for single compressed coredump.",
-        esp32Impact: "Consider coredump partition in flash (~64KB)."
+        esp32Impact: "ESP-IDF coredump with compression typically 20-40KB."
       }
     ]
   },
   {
     category: "System Management (FG-SYS)",
-    severity: "medium",
+    severity: "low",
     gaps: [
       {
         id: "GAP-SYS-001",
-        title: "Watchdog Timer Configuration Not Specified",
+        title: "OLED Menu Navigation Timeout",
-        description: "System reliability requires WDT but parameters not defined.",
+        description: "OLED menu system defined but navigation timeout/return to default screen not specified.",
         questions: [
-          "Task WDT timeout value?",
+          "Menu inactivity timeout?",
-          "Which tasks are monitored?",
+          "Default screen after timeout?",
-          "Interrupt WDT configuration?"
+          "Screen saver/burn-in prevention?"
         ],
-        recommendation: "10-second task WDT, monitor all FreeRTOS tasks, enable interrupt WDT.",
+        recommendation: "30-second menu timeout, return to status screen. Implement pixel shifting for OLED.",
-        esp32Impact: "ESP32-S3 has multiple WDT: Task WDT, Interrupt WDT, RTC WDT."
+        esp32Impact: "Software implementation. Consider I2C bus sharing with sensors."
       },
       {
         id: "GAP-SYS-002",
-        title: "Power Management Strategy Undefined",
+        title: "Button Debounce Configuration",
-        description: "Continuous AC power assumed but brownout/UPS handling not addressed.",
+        description: "Physical buttons mentioned but debounce parameters not specified.",
         questions: [
-          "Brownout detection threshold?",
+          "Debounce time (ms)?",
-          "UPS/battery backup expected?",
+          "Long-press duration for special functions?",
-          "Graceful shutdown on power loss?"
+          "Multi-button combinations?"
         ],
-        recommendation: "Enable brownout detector at 3.0V, implement emergency data flush on brownout interrupt.",
+        recommendation: "50ms debounce, 2s long-press for reset/service mode entry.",
-        esp32Impact: "ESP32-S3 has programmable brownout detector."
+        esp32Impact: "Use ESP-IDF GPIO ISR with FreeRTOS debounce task."
-      },
-      {
-        id: "GAP-SYS-003",
-        title: "Time Synchronization Details Missing",
-        description: "Synchronized time mentioned but sync mechanism not specified.",
-        questions: [
-          "NTP, GPS, or Main Hub time sync?",
-          "Sync interval?",
-          "Drift tolerance?",
-          "RTC backup?"
-        ],
-        recommendation: "Sync from Main Hub on connect, resync every 1 hour, ±1 second tolerance.",
-        esp32Impact: "ESP32-S3 has RTC. External RTC battery may be needed for power loss."
       }
     ]
   },
   {
-    category: "Hardware Interface (HW)",
+    category: "Hardware Abstraction (FG-HW)",
-    severity: "high",
+    severity: "medium",
     gaps: [
       {
         id: "GAP-HW-001",
-        title: "GPIO Pin Assignment Not Documented",
+        title: "I2C Bus Sharing Strategy",
-        description: "Multiple interfaces but no pin mapping provided.",
+        description: "Multiple I2C devices defined but bus arbitration/sharing strategy not documented.",
         questions: [
-          "Complete GPIO pin assignment table?",
+          "Single I2C bus or multiple buses?",
-          "Reserved/strapping pins identified?",
+          "I2C mutex for concurrent access?",
-          "I2C pull-up resistor values?"
+          "Clock stretching handling?"
         ],
-        recommendation: "Create comprehensive GPIO map. Avoid strapping pins (GPIO0, GPIO45, GPIO46).",
+        recommendation: "Use I2C_NUM_0 for sensors, I2C_NUM_1 for OLED. Mutex per bus for thread safety.",
-        esp32Impact: "ESP32-S3 has 45 GPIOs but some have restrictions (strapping, flash, PSRAM)."
+        esp32Impact: "ESP32-S3 has 2x I2C controllers. Separate buses recommended for isolation."
       },
       {
         id: "GAP-HW-002",
-        title: "OLED Display Specifications Missing",
+        title: "SEN6x 5V Supply Management",
-        description: "OLED via I2C mentioned but no specifications.",
+        description: "SEN6x requires 5V but ESP32-S3 is 3.3V. Level shifting/power supply not addressed.",
         questions: [
-          "Display resolution?",
+          "5V supply source (USB VBUS, regulator)?",
-          "Controller chip (SSD1306, SH1106)?",
+          "Level shifter for I2C lines?",
-          "I2C address?",
+          "Power sequencing with 3.3V devices?"
-          "Refresh rate requirements?"
         ],
-        recommendation: "Recommend SSD1306 128x64 OLED at 0x3C, widely supported.",
+        recommendation: "Use VBUS (5V) for SEN6x. SEN6x I2C is 3.3V compatible (open-drain).",
-        esp32Impact: "I2C bus speed consideration - 400kHz recommended for smooth updates."
+        esp32Impact: "No level shifter needed for I2C. Ensure stable 5V supply."
       },
       {
         id: "GAP-HW-003",
-        title: "SD Card Interface Mode Unspecified",
+        title: "ENS160 1.8V Core Supply",
-        description: "SD card mentioned but interface mode not defined.",
+        description: "ENS160 requires 1.8V core voltage. Supply configuration not specified.",
         questions: [
-          "SPI mode or SDMMC (1-bit/4-bit)?",
+          "External LDO or module-integrated?",
-          "Maximum SD card size supported?",
+          "LDO enable sequencing?",
-          "Speed class requirements?"
+          "Current capability for ENS160?"
         ],
-        recommendation: "Use SDMMC 4-bit mode for best performance if GPIOs available, else SPI.",
+        recommendation: "Use ENS160 module with integrated 1.8V LDO. Verify module specifications.",
-        esp32Impact: "ESP32-S3 supports both. SDMMC uses dedicated pins, SPI is more flexible."
+        esp32Impact: "ESP32-S3 does not provide 1.8V output. External LDO or module required."
+      }
+    ]
+  },
+  {
+    category: "Power & Fault Handling (FG-PWR)",
+    severity: "low",
+    gaps: [
+      {
+        id: "GAP-PWR-001",
+        title: "Supercapacitor Sizing Validation",
+        description: "0.5-1.0F supercapacitor recommended but sizing calculation not provided.",
+        questions: [
+          "Total current draw during emergency flush?",
+          "Minimum voltage for NVS write completion?",
+          "Supercapacitor ESR requirements?"
+        ],
+        recommendation: "1F supercapacitor, ESR < 100mΩ. Provides ~1.5s at 200mA draw from 3.3V to 2.8V.",
+        esp32Impact: "Brownout threshold 3.0V. Allow margin for NVS write completion."
+      },
+      {
+        id: "GAP-PWR-002",
+        title: "RTC Battery Selection Criteria",
+        description: "External RTC battery marked as optional. Selection criteria not defined.",
+        questions: [
+          "Required RTC accuracy during power loss?",
+          "Battery lifetime expectations?",
+          "Temperature range for battery?"
+        ],
+        recommendation: "CR2032 (220mAh, 3V) for typical applications. DS3231 RTC for ±2ppm accuracy.",
+        esp32Impact: "ESP32-S3 internal RTC drifts without power. External RTC recommended for >1min outages."
       }
     ]
   },
@@ -394,27 +356,27 @@ const gapAnalysis = [
     gaps: [
       {
         id: "GAP-DQC-001",
-        title: "Calibration Data Format Undefined",
+        title: "Calibration Coefficient Format",
-        description: "Calibration management mentioned but data structure not specified.",
+        description: "Calibration management defined but coefficient storage format not specified.",
         questions: [
-          "What calibration parameters per sensor type?",
+          "Polynomial order for calibration curves?",
-          "Polynomial coefficients, offset/gain, or lookup tables?",
+          "Fixed-point or floating-point coefficients?",
-          "Calibration data versioning?"
+          "Per-unit or batch calibration?"
         ],
-        recommendation: "Define per-sensor calibration structure with version, timestamp, and polynomial coefficients.",
+        recommendation: "3rd order polynomial, 32-bit float coefficients. Per-unit calibration stored in NVS.",
-        esp32Impact: "No specific hardware constraint."
+        esp32Impact: "ESP32-S3 FPU supports efficient float operations."
       },
       {
         id: "GAP-DQC-002",
-        title: "Sensor Validity Thresholds Not Defined",
+        title: "Sensor Auto-Detection Mechanism",
-        description: "Out-of-range detection mentioned but thresholds not specified.",
+        description: "Sensor identification mentioned but auto-detection protocol not defined.",
         questions: [
-          "Valid range per sensor type?",
+          "I2C address scanning at boot?",
-          "Rate-of-change limits?",
+          "WHO_AM_I register verification?",
-          "Stuck sensor detection criteria?"
+          "Fallback if sensor not detected?"
         ],
-        recommendation: "Define per-sensor-type: min/max physical range, max rate of change, stuck duration.",
+        recommendation: "I2C scan + WHO_AM_I verification. Log missing sensors, continue with available.",
-        esp32Impact: "No specific hardware constraint."
+        esp32Impact: "I2C scan takes ~50ms per address. Optimize scan range."
       }
     ]
   }

src/pages/Dashboard.tsx

@@ -49,7 +49,7 @@ const typeColors: Record<string, string> = {
 };
 
 export default function Dashboard() {
-  const { data, loading, lastUpdated, refresh, typeCounts, groupedByType, parseLog, setData } =
+  const { data, loading, lastUpdated, refresh, reloadFromCSV, typeCounts, groupedByType, parseLog, setData } =
     useTraceabilityData();
   const [showDebug, setShowDebug] = useState(false);
   const [showUpload, setShowUpload] = useState(false);
@@ -156,7 +156,7 @@ export default function Dashboard() {
                 <RefreshCw className="h-4 w-4 mr-2" />
                 Update Data
               </Button>
-              <Button variant="outline" onClick={refresh} disabled={loading}>
+              <Button variant="outline" onClick={reloadFromCSV} disabled={loading}>
                 Reload from CSV
               </Button>
             </div>

src/pages/SelectedSensorsPage.tsx

@@ -0,0 +1,659 @@
+import { useState } from "react";
+import { AppLayout } from "@/components/layout/AppLayout";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Separator } from "@/components/ui/separator";
+import { 
+  Cpu, 
+  Thermometer, 
+  Droplets, 
+  Wind, 
+  Gauge,
+  ExternalLink,
+  FileText,
+  Zap,
+  Cable,
+  Code,
+  Info,
+  CheckCircle,
+  AlertTriangle
+} from "lucide-react";
+import { cn } from "@/lib/utils";
+
+// Sensor data with datasheet links
+const sensors = {
+  bme680: {
+    id: 'bme680',
+    name: 'BME680',
+    manufacturer: 'Bosch Sensortec',
+    subtitle: 'Environmental 4-in-1 Sensor',
+    description: 'Low-power MEMS sensor measuring gas, pressure, temperature, and humidity. Critical for Indoor Air Quality (IAQ) monitoring.',
+    datasheetUrl: 'https://eu.mouser.com/datasheet/3/1278/1/A2F32BC94C3A80DFBB84AF6E5127DF06330B8846DE5C551EF47B9C5F80540CFA.pdf',
+    color: 'blue',
+    icon: Wind,
+    specs: {
+      'Supply Voltage': '1.71V - 3.6V',
+      'Interface': 'I2C / SPI',
+      'I2C Address': '0x76 (SDO=GND) / 0x77 (SDO=VDD)',
+      'Temp Range': '-40 to 85 °C',
+      'Pressure Range': '300 to 1100 hPa',
+      'Humidity Range': '0 to 100 %RH',
+      'Gas Sensing': 'VOCs (0-500 IAQ index)',
+      'Temp Accuracy': '±0.5 °C',
+      'Humidity Accuracy': '±3 %RH',
+      'Pressure Accuracy': '±0.6 hPa'
+    },
+    power: {
+      sleep: 0.00015,
+      idle: 0.15,
+      active: 12,
+      unit: 'mA'
+    },
+    wiring: [
+      { pin: 'VDD', connect: '3.3V', note: 'Main supply' },
+      { pin: 'GND', connect: 'GND', note: '' },
+      { pin: 'SDA', connect: 'GPIO21', note: 'I2C Data' },
+      { pin: 'SCL', connect: 'GPIO22', note: 'I2C Clock' },
+      { pin: 'SDO', connect: 'GND or VDD', note: 'Address select' },
+      { pin: 'CS', connect: 'VDD', note: 'I2C mode select' }
+    ],
+    notes: [
+      'Requires Bosch BSEC2 library for IAQ scores',
+      'Native read provides raw gas resistance (Ohms)',
+      'Gas sensor requires 24-48h burn-in for accuracy',
+      'Keep away from direct heat sources'
+    ]
+  },
+  ens160: {
+    id: 'ens160',
+    name: 'ENS160',
+    manufacturer: 'ScioSense',
+    subtitle: 'Digital Metal-Oxide Multi-Gas Sensor',
+    description: 'TrueVOC™ technology with on-chip algorithms for eCO2 and TVOC output. Features independent hotplates for selective gas detection.',
+    datasheetUrl: 'https://eu.mouser.com/datasheet/3/1500/1/518e5e0e1bfa8fdf441c96f0a3d093ad.pdf',
+    color: 'green',
+    icon: Wind,
+    specs: {
+      'Supply VDD': '1.71 - 1.98V',
+      'Supply VDDIO': '1.71 - 3.6V',
+      'Interface': 'I2C / SPI',
+      'I2C Address': '0x52 (Alt) / 0x53 (Default)',
+      'Outputs': 'TVOC (ppb), eCO2 (ppm), AQI-UBA',
+      'Warm-up Time': '3 min initial, 1 hr stabilization',
+      'TVOC Range': '0 - 65,000 ppb',
+      'eCO2 Range': '400 - 65,000 ppm'
+    },
+    power: {
+      sleep: 0.1,
+      idle: 0.9,
+      active: 29,
+      unit: 'mA'
+    },
+    wiring: [
+      { pin: 'VDD', connect: '1.8V LDO', note: '1.8V core supply' },
+      { pin: 'VDDIO', connect: '3.3V', note: 'I/O voltage' },
+      { pin: 'GND', connect: 'GND', note: '' },
+      { pin: 'SDA', connect: 'GPIO21', note: 'I2C Data' },
+      { pin: 'SCL', connect: 'GPIO22', note: 'I2C Clock' },
+      { pin: 'ADDR', connect: 'GND/VDD', note: 'Address select' }
+    ],
+    notes: [
+      'Requires strict adherence to heater timings',
+      'Most modules include 1.8V LDO on-board',
+      'On-chip processing reduces ESP32 load',
+      'Independent hotplates for selective detection'
+    ]
+  },
+  sen6x: {
+    id: 'sen6x',
+    name: 'SEN6x',
+    manufacturer: 'Sensirion',
+    subtitle: 'All-in-One Air Quality Module',
+    description: 'Comprehensive module integrating PM1.0, PM2.5, PM4.0, PM10, NOx, VOC, RH, and Temperature sensors. Simplifies hardware design.',
+    datasheetUrl: 'https://eu.mouser.com/datasheet/3/1278/1/Sensirion_Datasheet_SEN6x.pdf',
+    color: 'purple',
+    icon: Gauge,
+    specs: {
+      'Supply Voltage': '4.5V - 5.5V (5V typical)',
+      'Interface': 'I2C',
+      'I2C Address': '0x69 (fixed)',
+      'PM Accuracy': '±5 μg/m³ or ±5%',
+      'Particle Sizes': 'PM1.0, PM2.5, PM4.0, PM10',
+      'Additional Sensors': 'NOx, VOC, RH, Temperature',
+      'Lifetime': '> 10 years (24/7 operation)',
+      'Response Time': '< 10 seconds (PM)'
+    },
+    power: {
+      sleep: 2.6,
+      idle: 6.5,
+      active: 110,
+      unit: 'mA'
+    },
+    wiring: [
+      { pin: 'PIN 1 (VDD)', connect: '5V (VBUS)', note: 'CRITICAL: 3.3V insufficient!' },
+      { pin: 'PIN 2 (GND)', connect: 'GND', note: '' },
+      { pin: 'PIN 3 (SDA)', connect: 'GPIO21', note: 'I2C Data (3.3V logic compatible)' },
+      { pin: 'PIN 4 (SCL)', connect: 'GPIO22', note: 'I2C Clock' },
+      { pin: 'PIN 5 (SEL)', connect: 'GND', note: 'I2C mode select' }
+    ],
+    notes: [
+      'REQUIRES 5V supply - do not use 3.3V!',
+      'Logic levels are 3.3V compatible',
+      'Large data frames over I2C',
+      'Built-in fan for active sampling',
+      'Replaces multiple discrete sensors'
+    ]
+  },
+  sht4xi: {
+    id: 'sht4xi',
+    name: 'SHT4xI',
+    manufacturer: 'Sensirion',
+    subtitle: 'Industrial Precision RH/T Sensor',
+    description: 'Ruggedized version designed for harsh environments. Features built-in heater to remove condensation and prevent drift in high humidity.',
+    datasheetUrl: 'https://eu.mouser.com/datasheet/3/1278/1/HT_DS_Datasheet_SHT4xI_Digital_1.pdf',
+    color: 'amber',
+    icon: Droplets,
+    specs: {
+      'Supply Voltage': '2.3V - 5.5V',
+      'Interface': 'I2C',
+      'I2C Address': '0x44 (fixed)',
+      'Temp Accuracy': '±0.1 °C',
+      'Humidity Accuracy': '±1.5 %RH',
+      'Temp Range': '-40 to 125 °C',
+      'Humidity Range': '0 to 100 %RH',
+      'Heater': 'Three levels (up to 200mW)'
+    },
+    power: {
+      sleep: 0.001,
+      idle: 0.02,
+      active: 0.35,
+      unit: 'mA'
+    },
+    wiring: [
+      { pin: 'VDD', connect: '3.3V', note: 'Supply' },
+      { pin: 'GND', connect: 'GND', note: '' },
+      { pin: 'SDA', connect: 'GPIO21', note: 'I2C Data' },
+      { pin: 'SCL', connect: 'GPIO22', note: 'I2C Clock' }
+    ],
+    notes: [
+      'Simplest integration - standard I2C read',
+      'Heater commands block measurement during execution',
+      'Heater can draw up to 35mA at high setting',
+      'Industrial-grade: designed for harsh environments',
+      'Gold standard for T/RH reference measurement'
+    ]
+  }
+};
+
+const colorMap: Record<string, { bg: string; border: string; text: string; light: string }> = {
+  blue: { bg: 'bg-blue-500/10', border: 'border-blue-500/30', text: 'text-blue-600', light: 'bg-blue-50' },
+  green: { bg: 'bg-green-500/10', border: 'border-green-500/30', text: 'text-green-600', light: 'bg-green-50' },
+  purple: { bg: 'bg-purple-500/10', border: 'border-purple-500/30', text: 'text-purple-600', light: 'bg-purple-50' },
+  amber: { bg: 'bg-amber-500/10', border: 'border-amber-500/30', text: 'text-amber-600', light: 'bg-amber-50' }
+};
+
+// I2C Bus Map
+const i2cBusMap = [
+  { addr: '0x44', name: 'SHT4xI', color: 'amber' },
+  { addr: '0x52', name: 'ENS160 (Alt)', color: 'green' },
+  { addr: '0x53', name: 'ENS160 (Def)', color: 'green' },
+  { addr: '0x69', name: 'SEN6x', color: 'purple' },
+  { addr: '0x76', name: 'BME680 (SDO=GND)', color: 'blue' },
+  { addr: '0x77', name: 'BME680 (SDO=VDD)', color: 'blue' }
+];
+
+export default function SelectedSensorsPage() {
+  const [selectedSensor, setSelectedSensor] = useState<string>('overview');
+  const [activeTab, setActiveTab] = useState<string>('specs');
+  const [powerModes, setPowerModes] = useState<Record<string, 'sleep' | 'idle' | 'active'>>({
+    bme680: 'idle',
+    ens160: 'idle',
+    sen6x: 'idle',
+    sht4xi: 'idle',
+    esp32: 'active'
+  });
+
+  const calculateTotalPower = () => {
+    let total = 0;
+    Object.entries(sensors).forEach(([key, sensor]) => {
+      const mode = powerModes[key] || 'idle';
+      total += sensor.power[mode];
+    });
+    // Add ESP32-S3 base power
+    total += powerModes.esp32 === 'active' ? 80 : 10;
+    return total;
+  };
+
+  const renderOverview = () => (
+    <div className="space-y-6">
+      {/* Header */}
+      <div className="pb-4 border-b">
+        <h2 className="text-2xl font-bold">System Integration Dashboard</h2>
+        <p className="text-muted-foreground mt-1">
+          ESP32-S3 environmental sensing array overview. Analyze power consumption and I2C topology before implementation.
+        </p>
+      </div>
+
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+        {/* Power Budget Calculator */}
+        <Card>
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2">
+              <Zap className="h-5 w-5 text-amber-500" />
+              Power Consumption Simulator
+              <Badge variant="outline" className="ml-auto font-mono">3.3V Rail</Badge>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-3">
+              {Object.entries(sensors).map(([key, sensor]) => (
+                <div key={key} className="flex items-center justify-between p-2 hover:bg-muted/50 rounded">
+                  <div className="flex items-center gap-3">
+                    <span className="text-sm font-medium w-20">{sensor.name}</span>
+                    <select 
+                      className="text-xs border rounded px-2 py-1"
+                      value={powerModes[key]}
+                      onChange={(e) => setPowerModes(prev => ({ ...prev, [key]: e.target.value as 'sleep' | 'idle' | 'active' }))}
+                    >
+                      <option value="sleep">Sleep</option>
+                      <option value="idle">Idle</option>
+                      <option value="active">Active</option>
+                    </select>
+                  </div>
+                  <span className="font-mono text-sm">
+                    {sensor.power[powerModes[key] || 'idle']} mA
+                  </span>
+                </div>
+              ))}
+              <div className="flex items-center justify-between p-2 hover:bg-muted/50 rounded">
+                <div className="flex items-center gap-3">
+                  <span className="text-sm font-medium w-20">ESP32-S3</span>
+                  <select 
+                    className="text-xs border rounded px-2 py-1"
+                    value={powerModes.esp32}
+                    onChange={(e) => setPowerModes(prev => ({ ...prev, esp32: e.target.value as 'idle' | 'active' }))}
+                  >
+                    <option value="idle">Idle (10mA)</option>
+                    <option value="active">Active (80mA)</option>
+                  </select>
+                </div>
+                <span className="font-mono text-sm">
+                  {powerModes.esp32 === 'active' ? 80 : 10} mA
+                </span>
+              </div>
+            </div>
+            <Separator className="my-4" />
+            <div className="flex items-center justify-between">
+              <span className="text-muted-foreground">Estimated Total</span>
+              <span className="text-2xl font-bold font-mono text-primary">
+                {calculateTotalPower().toFixed(2)} mA
+              </span>
+            </div>
+          </CardContent>
+        </Card>
+
+        {/* I2C Bus Map */}
+        <Card>
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2">
+              <Cable className="h-5 w-5 text-emerald-500" />
+              I2C Bus Map
+              <Badge variant="outline" className="ml-auto font-mono">SDA/SCL</Badge>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="bg-muted/50 rounded-lg p-4 border min-h-[200px]">
+              <p className="text-xs text-muted-foreground uppercase tracking-wide mb-2 font-mono">Master</p>
+              <div className="bg-foreground text-background p-2 rounded text-center font-mono text-sm mb-4">
+                ESP32-S3 (I2C Controller 0)
+              </div>
+              <div className="w-full h-px bg-border mb-4 relative">
+                <div className="absolute left-1/2 -top-1 w-2 h-2 bg-border rounded-full transform -translate-x-1/2" />
+              </div>
+              <p className="text-xs text-muted-foreground uppercase tracking-wide mb-2 font-mono">Slaves</p>
+              <div className="flex flex-wrap gap-2">
+                {i2cBusMap.map((dev) => (
+                  <div 
+                    key={dev.addr}
+                    className={cn(
+                      "flex-1 min-w-[90px] p-2 rounded text-center border",
+                      colorMap[dev.color].bg,
+                      colorMap[dev.color].border
+                    )}
+                  >
+                    <span className={cn("block text-xs font-mono", colorMap[dev.color].text)}>
+                      {dev.addr}
+                    </span>
+                    <span className="block text-sm font-medium">{dev.name}</span>
+                  </div>
+                ))}
+              </div>
+            </div>
+            <div className="mt-4 text-xs text-muted-foreground space-y-1">
+              <p>• Disable internal pull-ups if external 2.2kΩ/4.7kΩ resistors present.</p>
+              <p>• SEN6x and SHT4x have fixed addresses. ENS160/BME680 are configurable.</p>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+
+      {/* Quick Sensor Cards */}
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+        {Object.values(sensors).map((sensor) => {
+          const colors = colorMap[sensor.color];
+          const Icon = sensor.icon;
+          return (
+            <Card 
+              key={sensor.id}
+              className={cn("cursor-pointer hover:shadow-md transition-shadow", colors.border)}
+              onClick={() => {
+                setSelectedSensor(sensor.id);
+                setActiveTab('specs');
+              }}
+            >
+              <CardHeader className="pb-2">
+                <CardTitle className="flex items-center gap-2 text-lg">
+                  <Icon className={cn("h-5 w-5", colors.text)} />
+                  {sensor.name}
+                </CardTitle>
+                <CardDescription>{sensor.subtitle}</CardDescription>
+              </CardHeader>
+              <CardContent>
+                <div className="flex items-center justify-between">
+                  <Badge variant="outline" className={colors.text}>
+                    {sensor.manufacturer}
+                  </Badge>
+                  <a
+                    href={sensor.datasheetUrl}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    onClick={(e) => e.stopPropagation()}
+                    className={cn("flex items-center gap-1 text-xs hover:underline", colors.text)}
+                  >
+                    <FileText className="h-3 w-3" />
+                    Datasheet
+                    <ExternalLink className="h-3 w-3" />
+                  </a>
+                </div>
+              </CardContent>
+            </Card>
+          );
+        })}
+      </div>
+    </div>
+  );
+
+  const renderSensorDetail = (sensorId: string) => {
+    const sensor = sensors[sensorId as keyof typeof sensors];
+    if (!sensor) return null;
+
+    const colors = colorMap[sensor.color];
+    const Icon = sensor.icon;
+
+    return (
+      <div className="space-y-6">
+        {/* Header */}
+        <div className="pb-4 border-b">
+          <div className="flex items-start justify-between">
+            <div>
+              <div className="flex items-center gap-3 mb-2">
+                <Button variant="ghost" size="sm" onClick={() => setSelectedSensor('overview')}>
+                  ← Back
+                </Button>
+                <Badge className={cn(colors.bg, colors.text, colors.border)}>
+                  {sensor.manufacturer}
+                </Badge>
+              </div>
+              <h2 className="text-2xl font-bold flex items-center gap-2">
+                <Icon className={cn("h-6 w-6", colors.text)} />
+                {sensor.name}: {sensor.subtitle}
+              </h2>
+              <p className="text-muted-foreground mt-1">{sensor.description}</p>
+            </div>
+            <a
+              href={sensor.datasheetUrl}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="flex items-center gap-2 px-3 py-2 bg-primary text-primary-foreground rounded hover:bg-primary/90"
+            >
+              <FileText className="h-4 w-4" />
+              View Datasheet
+              <ExternalLink className="h-4 w-4" />
+            </a>
+          </div>
+        </div>
+
+        <Tabs value={activeTab} onValueChange={setActiveTab}>
+          <TabsList>
+            <TabsTrigger value="specs" className="gap-2">
+              <Info className="h-4 w-4" />
+              Specifications
+            </TabsTrigger>
+            <TabsTrigger value="wiring" className="gap-2">
+              <Cable className="h-4 w-4" />
+              Wiring & Hardware
+            </TabsTrigger>
+            <TabsTrigger value="integration" className="gap-2">
+              <Code className="h-4 w-4" />
+              ESP-IDF Integration
+            </TabsTrigger>
+          </TabsList>
+
+          <TabsContent value="specs" className="mt-4">
+            <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+              <Card>
+                <CardHeader>
+                  <CardTitle>Technical Specifications</CardTitle>
+                </CardHeader>
+                <CardContent>
+                  <dl className="grid grid-cols-1 sm:grid-cols-2 gap-4">
+                    {Object.entries(sensor.specs).map(([key, value]) => (
+                      <div key={key} className="border-l-2 border-primary/30 pl-3">
+                        <dt className="text-xs font-medium text-muted-foreground uppercase tracking-wide">{key}</dt>
+                        <dd className="mt-1 text-sm font-semibold">{value}</dd>
+                      </div>
+                    ))}
+                  </dl>
+                </CardContent>
+              </Card>
+
+              <Card>
+                <CardHeader>
+                  <CardTitle>Power Consumption Profile</CardTitle>
+                </CardHeader>
+                <CardContent>
+                  <div className="space-y-4">
+                    <div className="flex items-center justify-between p-3 bg-muted/50 rounded">
+                      <span>Sleep Mode</span>
+                      <span className="font-mono font-bold">{sensor.power.sleep} mA</span>
+                    </div>
+                    <div className="flex items-center justify-between p-3 bg-muted/50 rounded">
+                      <span>Idle Mode</span>
+                      <span className="font-mono font-bold">{sensor.power.idle} mA</span>
+                    </div>
+                    <div className="flex items-center justify-between p-3 bg-primary/10 rounded border border-primary/20">
+                      <span>Active Mode</span>
+                      <span className="font-mono font-bold text-primary">{sensor.power.active} mA</span>
+                    </div>
+                  </div>
+                  <p className="text-xs text-muted-foreground mt-4 text-center">
+                    Typical values at 3.3V / 25°C
+                  </p>
+                </CardContent>
+              </Card>
+            </div>
+
+            <Card className="mt-6">
+              <CardHeader className={cn("rounded-t-lg", colors.light)}>
+                <CardTitle className={colors.text}>Important Notes</CardTitle>
+              </CardHeader>
+              <CardContent className="pt-4">
+                <ul className="space-y-2">
+                  {sensor.notes.map((note, idx) => (
+                    <li key={idx} className="flex items-start gap-2">
+                      {note.includes('CRITICAL') || note.includes('REQUIRES') ? (
+                        <AlertTriangle className="h-4 w-4 text-amber-500 mt-0.5 shrink-0" />
+                      ) : (
+                        <CheckCircle className="h-4 w-4 text-green-500 mt-0.5 shrink-0" />
+                      )}
+                      <span className="text-sm">{note}</span>
+                    </li>
+                  ))}
+                </ul>
+              </CardContent>
+            </Card>
+          </TabsContent>
+
+          <TabsContent value="wiring" className="mt-4">
+            <Card>
+              <CardHeader>
+                <CardTitle>Pin Connections to ESP32-S3</CardTitle>
+                <CardDescription>Standard I2C wiring configuration</CardDescription>
+              </CardHeader>
+              <CardContent>
+                <div className="bg-muted/50 rounded-lg p-4 border">
+                  <div className="font-mono text-sm space-y-2">
+                    {sensor.wiring.map((wire, idx) => (
+                      <div key={idx} className="flex items-center justify-between border-b border-border/50 py-2">
+                        <span className="font-medium">{wire.pin}</span>
+                        <span className={colors.text}>➜ {wire.connect}</span>
+                        {wire.note && (
+                          <span className="text-xs text-muted-foreground">{wire.note}</span>
+                        )}
+                      </div>
+                    ))}
+                  </div>
+                </div>
+
+                <div className="mt-6 p-4 bg-amber-50 dark:bg-amber-950/20 rounded-lg border border-amber-200 dark:border-amber-800">
+                  <h4 className="font-semibold text-amber-800 dark:text-amber-200 mb-2">Pull-up Resistors</h4>
+                  <ul className="text-sm text-amber-700 dark:text-amber-300 space-y-1">
+                    <li>• Use 4.7kΩ pull-ups on SDA and SCL if not present on module</li>
+                    <li>• Disable ESP32 internal pull-ups when external resistors used</li>
+                    <li>• For 400kHz I2C, 2.2kΩ pull-ups may be needed with long cables</li>
+                  </ul>
+                </div>
+              </CardContent>
+            </Card>
+          </TabsContent>
+
+          <TabsContent value="integration" className="mt-4">
+            <Card>
+              <CardHeader>
+                <CardTitle>ESP-IDF v5.4 Integration</CardTitle>
+                <CardDescription>I2C initialization and basic read pattern</CardDescription>
+              </CardHeader>
+              <CardContent>
+                <div className="bg-slate-950 text-slate-50 rounded-lg p-4 overflow-x-auto">
+                  <pre className="text-sm font-mono">
+{`// I2C Master Configuration for ${sensor.name}
+#include "driver/i2c_master.h"
+
+#define I2C_MASTER_NUM    I2C_NUM_0
+#define I2C_MASTER_SDA    GPIO_NUM_21
+#define I2C_MASTER_SCL    GPIO_NUM_22
+#define I2C_MASTER_FREQ   400000  // 400kHz
+
+#define ${sensor.name.toUpperCase()}_ADDR  ${Object.keys(sensor.specs).includes('I2C Address') ? sensor.specs['I2C Address'].split(' ')[0] : '0x00'}
+
+i2c_master_bus_handle_t bus_handle;
+i2c_master_bus_config_t bus_config = {
+    .clk_source = I2C_CLK_SRC_DEFAULT,
+    .i2c_port = I2C_MASTER_NUM,
+    .scl_io_num = I2C_MASTER_SCL,
+    .sda_io_num = I2C_MASTER_SDA,
+    .glitch_ignore_cnt = 7,
+    .flags.enable_internal_pullup = false,
+};
+
+ESP_ERROR_CHECK(i2c_new_master_bus(&bus_config, &bus_handle));
+
+// Add device
+i2c_device_config_t dev_config = {
+    .dev_addr_length = I2C_ADDR_BIT_LEN_7,
+    .device_address = ${sensor.name.toUpperCase()}_ADDR,
+    .scl_speed_hz = I2C_MASTER_FREQ,
+};
+
+i2c_master_dev_handle_t ${sensor.id}_handle;
+ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &dev_config, &${sensor.id}_handle));`}
+                  </pre>
+                </div>
+
+                <div className="mt-6 p-4 bg-blue-50 dark:bg-blue-950/20 rounded-lg border border-blue-200 dark:border-blue-800">
+                  <h4 className="font-semibold text-blue-800 dark:text-blue-200 mb-2">Recommended Libraries</h4>
+                  <ul className="text-sm text-blue-700 dark:text-blue-300 space-y-1">
+                    {sensor.id === 'bme680' && <li>• <a href="https://github.com/boschsensortec/BSEC2-lib" target="_blank" rel="noopener noreferrer" className="underline">Bosch BSEC2 Library</a> for IAQ processing</li>}
+                    {sensor.id === 'sen6x' && <li>• <a href="https://github.com/Sensirion/embedded-sps" target="_blank" rel="noopener noreferrer" className="underline">Sensirion Embedded SPS</a> driver</li>}
+                    {sensor.id === 'sht4xi' && <li>• <a href="https://github.com/Sensirion/embedded-sht" target="_blank" rel="noopener noreferrer" className="underline">Sensirion Embedded SHT</a> driver</li>}
+                    <li>• ESP-IDF I2C Master API (v5.4)</li>
+                  </ul>
+                </div>
+              </CardContent>
+            </Card>
+          </TabsContent>
+        </Tabs>
+      </div>
+    );
+  };
+
+  return (
+    <AppLayout>
+      <div className="space-y-6">
+        {/* Page Header */}
+        <div className="flex items-center justify-between">
+          <div>
+            <h1 className="text-3xl font-bold flex items-center gap-3">
+              <Cpu className="h-8 w-8 text-primary" />
+              Selected Sensors
+            </h1>
+            <p className="text-muted-foreground mt-1">
+              ESP32-S3 Sensor Array Analysis & Integration Guide
+            </p>
+          </div>
+          <Badge variant="outline" className="font-mono">
+            ESP-IDF v5.4 | ESP32-S3
+          </Badge>
+        </div>
+
+        {/* Navigation */}
+        <div className="flex gap-2 flex-wrap">
+          <Button 
+            variant={selectedSensor === 'overview' ? 'default' : 'outline'}
+            size="sm"
+            onClick={() => setSelectedSensor('overview')}
+          >
+            Dashboard & Bus Map
+          </Button>
+          {Object.values(sensors).map((sensor) => {
+            const colors = colorMap[sensor.color];
+            return (
+              <Button
+                key={sensor.id}
+                variant={selectedSensor === sensor.id ? 'default' : 'outline'}
+                size="sm"
+                onClick={() => {
+                  setSelectedSensor(sensor.id);
+                  setActiveTab('specs');
+                }}
+                className={selectedSensor === sensor.id ? '' : colors.text}
+              >
+                {sensor.name}
+              </Button>
+            );
+          })}
+        </div>
+
+        <Separator />
+
+        {/* Content */}
+        <ScrollArea className="h-[calc(100vh-280px)]">
+          {selectedSensor === 'overview' ? renderOverview() : renderSensorDetail(selectedSensor)}
+        </ScrollArea>
+      </div>
+    </AppLayout>
+  );
+}