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+# IPCam Orange Pi Dashboard (Updated)
+
+## 1. Overview
+IPCam Orange Pi Dashboard is a lightweight web-based surveillance system built on top of MediaMTX.
+
+The system is designed for:
+- Orange Pi (low-resource hardware)
+- Multiple IP cameras (4–10 cams)
+- No AI processing (unlike Frigate)
+- Full control via MediaMTX Control API
+
+---
+
+## 2. Architecture
+
+### Components
+- IP Cameras (RTSP - H264 recommended)
+- MediaMTX (stream proxy + recorder + API)
+- Dashboard Backend (scheduler + API)
+- Dashboard Frontend (live view + playback UI)
+
+### Data Flow
+Camera → MediaMTX → WebRTC → Dashboard  
+Camera → MediaMTX → Recording (fMP4) → Storage → Playback UI  
+
+---
+
+## 3. Core Features
+
+### 3.1 Live View
+- Grid layout (1 / 4 / 9 cameras)
+- WebRTC streaming (low latency)
+- Auto reconnect
+- Lazy loading streams
+
+### 3.2 Playback
+- List recordings by:
+  - Camera
+  - Date
+- Play fMP4 files via HTML5 video
+- File-based playback (no timeline initially)
+
+### 3.3 Camera Management
+- Add/remove camera (update MediaMTX config)
+- Reload MediaMTX if needed
+
+### 3.4 Recording Schedule (IMPORTANT)
+- Configure recording time per system:
+  - Weekdays: 18:00 → 08:00
+  - Weekend: 24h
+- Implemented in Dashboard (NOT MediaMTX)
+
+---
+
+## 4. MediaMTX Integration
+
+### 4.1 Endpoints
+- RTSP: rtsp://<server>:8554/<path>
+- WebRTC: http://<server>:8889
+- API: http://<server>:9997
+
+---
+
+### 4.2 Control API Usage
+
+#### Enable API
+```
+api: true
+apiAddress: :9997
+```
+
+---
+
+### 4.3 Toggle Recording via API
+
+#### Enable recording
+```
+POST /v3/config/paths/patch
+{
+  "paths": {
+    "cam1": { "record": true }
+  }
+}
+```
+
+#### Disable recording
+```
+POST /v3/config/paths/patch
+{
+  "paths": {
+    "cam1": { "record": false }
+  }
+}
+```
+
+---
+
+### 4.4 Bulk Update
+```
+{
+  "paths": {
+    "cam1": { "record": true },
+    "cam2": { "record": true },
+    "cam3": { "record": true },
+    "cam4": { "record": true }
+  }
+}
+```
+
+---
+
+## 5. Scheduler Design
+
+### Logic
+- Dashboard backend controls recording
+- Runs every 60 seconds
+
+### Example Logic
+```
+if weekend:
+    record = true
+else:
+    record = (hour >= 18 or hour < 8)
+```
+
+### Implementation
+- setInterval / cron job in backend
+- Calls MediaMTX API
+
+---
+
+## 6. Storage
+
+### Format
+- fMP4 segments
+
+### Path
+```
+/recordings/<camera>/<timestamp>.fmp4
+```
+
+### Notes
+- Files created per segment (e.g., 5 minutes)
+- Recording starts immediately when enabled
+
+---
+
+## 7. Technology Stack
+
+### Backend
+- Node.js (Express) or Python (FastAPI)
+- Responsibilities:
+  - Scheduler
+  - MediaMTX API integration
+  - Recording index API
+
+### Frontend
+- HTML + JS (or React)
+- WebRTC player
+- Video playback UI
+
+---
+
+## 8. Performance Requirements
+
+- 4–5 simultaneous streams
+- Minimal CPU usage (no transcoding)
+- Stable on Orange Pi
+
+---
+
+## 9. Constraints
+
+- Browser requires H264 (NOT H265)
+- WebRTC requires UDP port (8189) open
+- Firewall must allow:
+  - 8554 (RTSP)
+  - 8889 (WebRTC HTTP)
+  - 8189/UDP (ICE)
+
+---
+
+## 10. Future Enhancements
+
+- Timeline playback (merge segments)
+- Multi-user authentication
+- Mobile UI
+- Event-based recording (optional)
+
+---
+
+## 11. Summary
+
+- MediaMTX handles streaming + recording
+- Dashboard handles logic + scheduling
+- Recording is controlled via API (not config reload)
+
+This architecture is optimized for simplicity, performance, and scalability on Orange Pi.