polivalka-web

🌱 Polivalka Remote Dashboard

Remote web dashboard for Polivalka plant watering system.

Architecture

Frontend: GitHub Pages (static HTML/CSS/JS) Backend: AWS Lambda + API Gateway Communication: AWS IoT Core (MQTT) Database: DynamoDB

Browser → GitHub Pages → API Gateway → Lambda → AWS IoT MQTT → ESP32
                                      ↓
                                  DynamoDB

Setup

1. Deploy Lambda Functions

See lambda/ directory for Python code:

• command_handler.py - Send commands to device
• sensor_data_handler.py - Get sensor history
• devices_handler.py - List devices

Deploy to AWS Lambda and create API Gateway endpoints.

2. Configure Frontend

Update api.js:

const API_BASE = 'https://YOUR_API_GATEWAY_ID.execute-api.us-east-1.amazonaws.com';

3. Enable GitHub Pages

1. Go to repository Settings
2. Pages → Source: main branch
3. Save

Your site will be available at: https://maximshurygin.github.io/polivalka-web/

Features

• ✅ Real-time device status
• ✅ Remote water control
• ✅ Sensor reading
• ✅ Emergency stop
• ✅ 7-day moisture history chart
• ✅ Command log

Device Commands

Water Plant

{
  "action": "water",
  "duration_sec": 10
}

Read Sensor

{
  "action": "read_sensor"
}

Stop Pump

{
  "action": "stop"
}

Cost

Total: $0-12/year

• GitHub Pages: $0 (unlimited traffic)
• AWS Lambda: $0 (1M requests/month free tier)
• API Gateway: $0 first year, $0.26/year after
• DynamoDB: $0 (25GB free tier)
• Domain (optional): $12/year

Development

Local testing:

python3 -m http.server 8080
open http://localhost:8080

License

MIT