SCADA System Using Arduino UNO Q & Opta PLC

Build Smarter Industrial Monitoring with Edge Intelligence

Industrial automation today is about more than just controlling machines—it’s about having instant access to reliable data that helps improve productivity, reduce downtime, and make better operational decisions.

The SCADA System using Arduino UNO Q and Arduino Opta PLC brings together industrial-grade control and edge computing in a single, easy-to-deploy solution. Designed for engineers developing modern automation systems, it enables real-time monitoring, data acquisition, visualization, and remote access through a browser-based dashboard.

Whether you’re building a new automation system or upgrading an existing installation, this solution provides a flexible platform for factory automation, machine monitoring, Industrial IoT, and Industry 4.0 applications.

Why Choose This SCADA Solution?

Modern manufacturing environments demand continuous visibility into machines, processes, and energy usage. Traditional monitoring methods often involve multiple software platforms and complex integration.

With Arduino Opta PLC acting as the field controller and Arduino UNO Q functioning as the SCADA server, engineers can build a compact yet powerful monitoring system that collects, processes, and visualizes industrial data locally.

Running Node-RED on a Linux-based edge platform, the solution simplifies dashboard creation while supporting industrial communication through Modbus TCP/IP.

The result is a scalable SCADA platform that is easy to develop, quick to deploy, and ready for future expansion.

System Architecture

The solution combines two complementary platforms that work together seamlessly.

Arduino Opta PLC

The Arduino Opta PLC serves as the industrial controller responsible for collecting data from sensors, actuators, and connected equipment. It communicates process information over Modbus TCP/IP, making it suitable for a wide range of industrial automation applications.

Key Features

• Industrial-grade PLC
• Real-time machine control
• Modbus TCP/IP communication
• Easy integration with sensors and actuators
• Programmable using the Arduino ecosystem

Arduino UNO Q

Arduino UNO Q acts as the SCADA server by running Linux and Node-RED. It continuously acquires data from the Opta PLC, processes information locally, and hosts a web-based dashboard for monitoring and visualization.

Key Features

• Linux-based edge computing platform
• Browser-based SCADA dashboard
• Local data processing
• Real-time monitoring and visualization

How the Solution Works

The system follows a straightforward industrial communication architecture.

Sensor data generated by industrial equipment is collected by the Arduino Opta PLC. Using Modbus TCP/IP, the data is transferred to Arduino UNO Q, where Node-RED processes the information and presents it through an intuitive web-based dashboard.

Operators and engineers can monitor machine status, alarms, and process variables from any connected browser without requiring dedicated SCADA software.

This architecture reduces system complexity while improving accessibility and scalability.

Key Benefits

• Real-Time Process Visibility: Monitor machine performance, production parameters, and process conditions as they happen.
• Centralized Monitoring: View multiple machines and production assets from a single dashboard.
• Faster Decision Making: Access live operational data to quickly identify abnormalities and improve response time.
• Edge Computing: Process data locally to reduce network traffic and improve response speed.
• Remote Accessibility: Access the SCADA dashboard securely over local or remote networks.
• Simplified Dashboard Development: Build customized monitoring interfaces using Node-RED’s intuitive low-code environment.
• Industrial Communication Support: Communicate with PLCs using Modbus TCP/IP, one of the most widely adopted industrial protocols.
• Easy System Expansion: Add additional PLCs, sensors, or devices as your automation requirements grow.

Applications

The Arduino UNO Q and Opta PLC SCADA solution is suitable for a wide range of industrial automation applications.

• Factory Automation: Monitor production lines, conveyors, packaging systems, and manufacturing equipment in real time.
• Machine Condition Monitoring: Track critical machine parameters such as temperature, vibration, pressure, operating hours, and equipment status to improve reliability and reduce unexpected downtime.
• Industrial Gateway: Collect data from PLCs and industrial devices, process it locally, and forward information to enterprise or cloud platforms.
• Energy Monitoring: Measure power consumption and electrical parameters to improve energy efficiency and reduce operating costs.
• MCCB Monitoring & Protection: Monitor breaker status, electrical faults, alarms, and operating conditions within electrical distribution systems.
• Process Monitoring: Visualize process variables including temperature, humidity, pressure, tank level, and flow using an easy-to-understand SCADA dashboard.
• Remote Asset Monitoring: Access industrial equipment remotely through secure browser-based monitoring.
• Industrial IoT (IIoT): Connect industrial assets with IoT platforms to enable centralized monitoring, analytics, and predictive maintenance.
• Smart Manufacturing: Support Industry 4.0 initiatives by integrating PLCs, SCADA systems, and edge computing into connected factory environments.
• Rapid SCADA Development: Accelerate proof-of-concept projects and industrial automation development using the Arduino ecosystem and Node-RED.

Why Millennium Semiconductors?

Millennium Semiconductors helps engineers transform ideas into reliable industrial automation solutions by providing access to globally recognized technologies and application expertise.

Our team works closely with OEMs, machine builders, system integrators, and design engineers to support product selection, solution design, and faster development cycles. From industrial controllers and embedded computing platforms to connectivity and semiconductor components, we enable customers to build scalable and future-ready automation systems with confidence.

Ready to Build Your Next Industrial Automation Solution?

Whether you’re developing a machine monitoring system, implementing an Industry 4.0 initiative, or creating a custom SCADA application, the Arduino UNO Q and Opta PLC solution provides the performance, flexibility, and scalability required for modern industrial environments.

Connect with Millennium Semiconductors to explore the right solution for your application and accelerate your industrial automation projects.