📌 Project Overview

SCADA-PiBot is a full-duplex monitoring and control system that integrates a SCADA system, Raspberry Pi, and Telegram bot to remotely monitor and manage a water treatment plant.

The system extracts real-time operational data from PLCs connected to the SCADA system and securely transmits it to an online database. A Cloudflare Tunnel is used to bypass the lack of a public IP and enable secure remote communication. Additionally, operators can send commands via a Telegram bot to interact with the system.

The system architecture consists of:

• SCADA System & PLCs – The primary automation and data acquisition layer.
• Raspberry Pi – Acts as an intermediary, collecting SCADA data and handling remote communication.
• Router (SIM-based) – Connects the system to the internet via a cellular network, enabling data transfer.
• Cloudflare Tunnel – Provides a secure way to access the Raspberry Pi remotely.
• VPS + Grafana – Stores SCADA logs in a database and visualizes them in real time.
• Telegram Bot – Allows operators to receive alerts and send remote commands.

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✨ Key Features

✅ SCADA Data Acquisition – Extracts real-time data from PLCs using Modbus.
✅ Two-Way Telegram Bot Communication – Sends automated alerts and allows remote system control.
✅ Cloudflare Tunnel for Secure Remote Access – Eliminates the need for a public IP.
✅ Grafana Integration – Visualizes data on a VPS-hosted dashboard.
✅ Automated Status Updates – Periodic reports on system health and network status via crontab.
✅ Secure Communication – Prevents unauthorized access using authentication and encryption.
✅ Data Logging & Storage – Sends SCADA readings to a remote database for analysis.
✅ Edge Processing with Raspberry Pi – Reduces latency by processing alerts locally before sending data.
✅ Router-Based Connectivity – Uses a SIM card for internet access, making it ideal for remote locations.
✅ Scalable & Modular – Can be extended to support additional IoT sensors or security features.

SCADA-PiBot/
│── scripts/
│   ├── record_data.py        # Logs temperature, humidity, and SCADA parameters
│   ├── pre_reboot.py         # Saves logs before reboot & notifies Telegram
│   ├── post_reboot.py        # Sends notification after reboot
│   ├── data_collector.py     # Collects SCADA data every 2 hours (based on crontab)
│   ├── pi_status.py          # Monitors system status & reports every 6 hours
│   ├── telegram_bot.py       # Manages Telegram bot interactions
│   ├── modbus_reader.py      # Extracts PLC data via Modbus protocol
│   ├── cloudflare_tunnel.py  # Handles secure communication via Cloudflare
│── crontab_config.txt        # Crontab settings for periodic automation
│── README.md                 # Project documentation & setup guide
│── .gitignore                # Ignore unnecessary files (logs, cache, env, etc.)
│── config.py                 # Configuration settings (API keys, paths, bot tokens)
│── SCADA-Pi-Telegram.svg     # System architecture diagram (for README display)
│── requirements.txt          # Python dependencies for easy setup
│── LICENSE                   # License details for open-source usage

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📡 System Architecture

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⚙️ Installation & Setup

1. Install Required Packages on Raspberry Pi

sudo apt update && sudo apt upgrade -y
sudo apt install python3 python3-pip
pip3 install requests telebot flask paho-mqtt

2. Clone the Repository

git clone https://github.com/Homaei/SCADA-Pi-Telegram.git
cd SCADA-Pi-Telegram

3. Set Up the Telegram Bot Create a Telegram bot using BotFather. Get the API Token and update config.py.

TELEGRAM_BOT_TOKEN = "your_bot_token"
AUTHORIZED_USERS = ["user_id1", "user_id2"]

4. Set Up Cloudflare Tunnel Install Cloudflare Tunnel on Raspberry Pi:

curl -fsSL https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-arm -o cloudflared
chmod +x cloudflared
sudo mv cloudflared /usr/local/bin

Authenticate and create a tunnel:

cloudflared tunnel login
cloudflared tunnel create scada-pibot

Configure the tunnel for secure communication.

5. Enable Crontab for Periodic Status Updates

crontab -e

Add the following line:

*/5 * * * * python3 /path/to/pi_status.py

🚀 Usage Start the Monitoring System

python3 main.py

Interact with the Telegram Bot

+-------------+------------------------------------+
| Command     | Description                        |
+-------------+------------------------------------+
| /status     | Get Raspberry Pi system status     |
| /scada_data | Fetch latest SCADA readings        |
| /help       | Show available commands            |
+-------------+------------------------------------+

🛠 Future Enhancements

🔍 Improve SCADA Data Extraction (Direct Modbus/OPC-UA access).

📡 Optimize Router Configuration (Intercept PLC traffic).

🔐 Enhance Security Measures (VPN-based tunneling).

🗃 Saving data to a PostgreSQL database on a VPS.

📊 Implement Data Visualization via Grafana.

📝 License This project is licensed under the MIT License.

👥 Contributors

• Hubert Homaei and Aagustin di Bartolo.