# Project: Smart Home Temperature Monitor

## Functional Requirements
- FR1: Measure temperature and humidity every 30 seconds
- FR2: Display data on LCD screen
- FR3: Send data to cloud dashboard via WiFi
- FR4: Alert when temperature exceeds threshold
- FR5: Battery life of 48+ hours

## Non-Functional Requirements
- NFR1: Response time < 1 second
- NFR2: WiFi reconnection within 30 seconds
- NFR3: Cost per unit < $25
- NFR4: Operating temperature: -10°C to 50°C

## Constraints
- Development time: 8 weeks
- Budget: $500 for prototypes
- Platform: ESP32-based

src/
├── main.c              # Entry point
├── sensors/
│   ├── dht22.c        # Temperature sensor
│   └── sensor_task.c  # RTOS task
├── network/
│   ├── wifi.c         # WiFi connection
│   └── mqtt.c         # MQTT client
├── display/
│   └── oled.c         # Display driver
└── utils/
    ├── logging.c      # Debug logging
    └── config.c       # Configuration

# Daily workflow
git pull origin main              # Get latest changes
git checkout -b feature/my-work   # Create feature branch
# ... make changes ...
git add .
git commit -m "feat: Add feature"
git push -u origin feature/my-work
# Create PR for review

# Test Report - Temperature Monitor v1.0

## Test Date: 2025-11-06
## Tester: Inderpreet Singh

### Test Cases

| ID | Test Case | Expected | Result | Status |
|----|-----------|----------|--------|--------|
| TC-01 | Power on | Boot in <5s | 3.2s | ✅ Pass |
| TC-02 | Sensor read | Accurate ±0.5°C | ±0.3°C | ✅ Pass |
| TC-03 | WiFi connect | Connect in <30s | 12s | ✅ Pass |
| TC-04 | Battery life | 48+ hours | 52 hours | ✅ Pass |
| TC-05 | Error handling | Graceful recovery | Recovered | ✅ Pass |

### Issues Found
1. LCD brightness too high in dark room (Minor)
2. WiFi disconnect after 12 hours (Fixed in v1.1)

### Conclusion
System meets all requirements. Ready for production.

**Bug Description**
WiFi fails to reconnect after network interruption

**Steps to Reproduce**
1. Power on device
2. Disconnect router for 5 minutes
3. Reconnect router
4. Device does not reconnect

**Expected Behavior**
Device should auto-reconnect within 30 seconds

**Actual Behavior**
Device stays disconnected indefinitely

**Environment**
- Firmware: v1.2.0
- Hardware: ESP32-WROOM-32
- Router: TP-Link AC1750

**Logs**
```
[ERROR] WiFi connection failed: timeout
[INFO] Retrying connection... (attempt 1/3)
```

**Priority:** High
**Labels:** bug, networking