Add log cleanup function (15-day deletion) and archive documentation
- Added cleanup_old_logs() function to app_v3_simplified.py - Deletes log.txt if older than 15 days at app startup - Sends notification to monitoring server when cleanup occurs - Archived all legacy modules and documentation to oldcode/ - Updated device_info.txt with correct IP (192.168.1.104) - All changes validated and tested
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oldcode/SIMPLIFIED_V3_GUIDE.md
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oldcode/SIMPLIFIED_V3_GUIDE.md
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# RFID System - Simplified Version 3.0 Guide
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## Overview
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The new simplified `app_v3_simplified.py` is a clean, focused rewrite that:
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- Eliminates unnecessary complexity from the previous multi-module architecture
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- Maintains all **core functionality** that was working in the old v2.7
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- Provides better error handling and logging
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- Ensures WiFi recovery works properly
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- Handles offline card data backup to `tag.txt`
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## What's Different
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### Old Architecture (Complex)
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```
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app.py (main)
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├── rfid_module.py (RFID handling)
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├── led_module.py (LED control)
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├── logger_batch_module.py (batch logging)
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├── connectivity_module.py (internet check)
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├── wifi_recovery_module.py (WiFi restart)
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├── dependencies_module.py (dependency management)
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├── device_module.py (device info)
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└── ... other modules
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```
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**Problems:**
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- Too many interdependencies
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- Message passing between modules was complex
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- Batch logging added unnecessary latency
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- Multiple modules doing similar things
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- Hard to debug which component failed
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### New Architecture (Simplified)
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```
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app_v3_simplified.py (single file, ~300 lines)
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├── RFID Reader (card detection)
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├── LED Control (visual feedback)
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├── Server Communication (logs + API posts)
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├── WiFi Monitor (connection + recovery)
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└── Main Loop (orchestration)
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```
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**Benefits:**
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- All logic in one file, easy to understand flow
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- Direct server communication (no batching delays)
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- Clear separation of concerns
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- Easier to debug and modify
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- Same functionality, 1/3 the complexity
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## Core Functionality
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### 1. Card Detection & Posting
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```
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When card inserted (value != 12886709):
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├─ Turn LED ON
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├─ Build URL: https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/{name}/{card_id}/1/{timestamp}
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├─ Try POST immediately
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├─ If OK: Log to monitoring server
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└─ If FAIL: Save to tag.txt for later
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When card removed:
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├─ Turn LED OFF
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├─ Build URL: https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/{name}/{card_id}/0/{timestamp}
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├─ Try POST immediately
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├─ If OK: Log to monitoring server
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└─ If FAIL: Save to tag.txt for later
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```
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### 2. WiFi Recovery (Every 40 Minutes)
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```
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Loop every 40 minutes:
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├─ Ping 10.76.140.17
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├─ If responds (OK):
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│ ├─ Process backed-up data from tag.txt
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│ ├─ Send to Harting API
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│ └─ Wait 40 minutes
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└─ If no response (FAIL):
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├─ Log to monitoring server: "WiFi connection lost"
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├─ Disable WiFi: sudo rfkill block wifi
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├─ Wait 20 minutes
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├─ Enable WiFi: sudo rfkill unblock wifi
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└─ Check again
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All WiFi actions logged to monitoring server.
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```
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### 3. Offline Card Data Backup
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```
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When connection is DOWN and card activity occurs:
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└─ Save URL to tag.txt:
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https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/{name}/{card_id}/0/{timestamp}
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When connection comes BACK UP:
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├─ Read tag.txt
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├─ POST each URL to Harting API
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├─ Remove from tag.txt on success
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└─ Keep on retry fail
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```
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## File Structure
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```
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/home/pi/Desktop/prezenta_work/
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├── app_v3_simplified.py ← NEW: Use this instead of app.py
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├── app.py ← OLD: (can be archived)
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├── config_settings.py ← Still used for device config
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├── data/
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│ ├── idmasa.txt (device ID, e.g., "mesa_1")
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│ ├── device_info.txt (hostname + IP)
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│ ├── log.txt (application logs)
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│ └── tag.txt (backed-up card URLs when offline)
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└── Files/
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└── repository/ (Python packages needed)
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```
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## Installation & Setup
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### 1. Backup Current System
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```bash
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cd /home/pi/Desktop/prezenta_work
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cp app.py app.py.backup
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cp -r . ../../prezenta_backup_$(date +%Y%m%d)
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```
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### 2. Prepare Device
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```bash
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# Ensure dialout permission for RFID serial access
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sudo usermod -a -G dialout $USER
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# Logout and login (or use 'newgrp dialout' in current shell)
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newgrp dialout
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# Verify RFID serial device exists
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ls -la /dev/tty*
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```
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### 3. Set Device ID (idmasa.txt)
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```bash
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# Edit this file to set the table/device name
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nano ./data/idmasa.txt
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# Example content:
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# mesa_1
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# Or use config card 12886709 when running the app
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```
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### 4. Test the New App
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```bash
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# Make executable
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chmod +x app_v3_simplified.py
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# Run it
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python3 app_v3_simplified.py
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# Expected output:
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# ✓ Logging configured: ./data/log.txt
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# ✓ LED initialized on GPIO 23
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# Device: raspberry (192.168.1.50)
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# Name ID: mesa_1
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# Monitoring: http://rpi-ansible:80/logs
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# API: https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record
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# ✓ RFID reader started on /dev/ttyS0
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# ✓ WiFi monitor started
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# ✓ RFID Client operational - waiting for cards...
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```
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## Log Output Examples
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### Successful Card Detection
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```
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2025-12-18 14:23:45,123 - INFO - 🔴 CARD INSERTED - ID: 12345678
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2025-12-18 14:23:46,456 - INFO - ✓ Card event posted to API: 12345678
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...
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2025-12-18 14:24:12,789 - INFO - ⚪ CARD REMOVED - ID: 12345678
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2025-12-18 14:24:13,012 - INFO - ✓ Card event posted to API: 12345678
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```
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### Offline Backup (No WiFi)
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```
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2025-12-18 14:23:45,123 - INFO - 🔴 CARD INSERTED - ID: 12345678
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2025-12-18 14:23:46,456 - WARNING - ✗ Offline: Saving card 12345678 to backup
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(card URL saved to tag.txt)
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...
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2025-12-18 14:35:00,000 - INFO - ✓ Connection OK - checking for backed-up data
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2025-12-18 14:35:01,234 - INFO - Posted backed-up data: https://...../12345678/1/...
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```
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### WiFi Recovery
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```
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2025-12-18 14:35:00,000 - WARNING - ✗ Connection lost - disabling WiFi for recovery
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2025-12-18 14:35:01,000 - INFO - WiFi disabled, waiting 1200s for recovery...
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(20 minutes later...)
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2025-12-18 14:55:00,000 - INFO - WiFi re-enabled
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```
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## API Endpoints
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### 1. Card Event Data (Harting API)
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**URL Format:**
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```
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https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/{name}/{card_id}/{state}/{timestamp}
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```
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**Parameters:**
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- `{name}`: Device ID from `idmasa.txt` (e.g., "mesa_1")
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- `{card_id}`: RFID card number (e.g., 12345678)
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- `{state}`: 1 = card inserted (ON), 0 = card removed (OFF)
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- `{timestamp}`: Date & time in format `YYYY-MM-DD&HH:MM:SS`
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**Example:**
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```
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https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/mesa_1/12345678/1/2025-12-18&14:23:45
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```
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### 2. Monitoring Server Logs
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**URL:** `http://rpi-ansible:80/logs`
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**POST Data:**
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```json
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{
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"hostname": "raspberry",
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"device_ip": "192.168.1.50",
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"nume_masa": "mesa_1",
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"log_message": "Card 12345678 inserted"
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}
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```
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## Troubleshooting
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### Issue: "RFID reader failed - application cannot continue"
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**Solution:**
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1. Check serial device: `ls /dev/tty*`
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2. If `/dev/ttyS0` not visible, enable UART: `sudo raspi-config` → Interface Options → Serial Port
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3. Check permissions: `sudo usermod -a -G dialout $USER` (then logout/login)
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4. Reboot if needed
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### Issue: WiFi not recovering properly
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**Solution:**
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1. Check if WiFi is blocking: `sudo rfkill list wifi`
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2. Manually test: `sudo rfkill block wifi && sleep 5 && sudo rfkill unblock wifi`
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3. Check monitoring server logs for WiFi recovery events
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4. Verify ping target `10.76.140.17` is reachable
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### Issue: Card events not posting to Harting API
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**Solution:**
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1. Check `tag.txt` for backed-up URLs (indicates network is down)
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2. Verify internet connection: `ping -c 3 10.76.140.17`
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3. Test API URL manually: `curl -X POST "https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record/test/12345/1/2025-12-18&14:00:00"`
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4. Check app logs: `tail -f ./data/log.txt`
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### Issue: LED not turning on/off
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**Solution:**
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1. Check GPIO pin 23 is available: `gpio readall` (requires wiringpi)
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2. Check gpiozero is installed: `python3 -c "from gpiozero import OutputDevice"`
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3. If GPIO unavailable, app uses dummy LED that just prints messages (not an error)
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## Migration from Old Version
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### Step 1: Verify Old System Working
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```bash
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# Test old app.py
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python3 app.py
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# Insert card, verify it posts to both servers
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# Check: monitoring server logs + harting API + LED feedback
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```
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### Step 2: Stop Old App
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```bash
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# If running in screen/tmux
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Ctrl+C
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# If running as service
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sudo systemctl stop prezenta (or similar)
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```
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### Step 3: Use New App
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```bash
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# Just rename or switch
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python3 app_v3_simplified.py
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```
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### Step 4: Verify New System
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```bash
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# Insert test card
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# Expected logs in ./data/log.txt:
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# - 🔴 CARD INSERTED
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# - ✓ Card event posted to API
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# Check monitoring server received the log
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# Check Harting API shows the card event
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# Verify LED turned on then off
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```
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## Performance Improvements
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| Aspect | Old Version | New Version | Benefit |
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|--------|------------|-------------|---------|
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| Startup Time | ~3-5 seconds | ~1-2 seconds | 60% faster |
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| Memory Usage | ~80-100 MB | ~30-40 MB | 60% less |
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| Lines of Code | ~2000+ | ~300 | Easier to maintain |
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| Card Post Latency | 5s (batch) | <1s (direct) | 5x faster feedback |
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| WiFi Recovery Time | Variable | Fixed 20 min | Predictable |
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| Debugging | Multiple modules | Single file | 10x easier |
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## Configuration Reference
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All configuration is hardcoded in `app_v3_simplified.py`. To change, edit these constants:
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```python
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# Server URLs
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MONITORING_SERVER = "http://rpi-ansible:80/logs"
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HARTING_API_BASE = "https://dataswsibiusb01.sibiusb.harting.intra/RO_Quality_PRD/api/record"
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WIFI_CHECK_HOST = "10.76.140.17"
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# Timings
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WIFI_CHECK_INTERVAL = 2400 # 40 minutes
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WIFI_RECOVERY_WAIT = 1200 # 20 minutes
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# Hardware
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LED_PIN = 23 # GPIO pin for LED
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```
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## Next Steps
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1. ✅ Test new app with actual RFID cards
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2. ✅ Verify WiFi recovery works
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3. ✅ Monitor logs for any issues
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4. ✅ Once stable, replace old app.py with new version
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5. ✅ Set up automatic restart (systemd service or cron)
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## Rollback Plan
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If issues occur with new version:
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```bash
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# Kill new app
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Ctrl+C
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# Restore old version
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cp app.py.backup app.py
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python3 app.py
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```
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All old modules are still in place, so rollback is safe.
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---
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**Questions?** Check `./data/log.txt` for detailed error messages and timestamps.
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