Arduino OPTA OPC-UA UI Client

⚡ Arduino_OPTA_OPC-UA

🗂 Overview

This project implements an 🖧 OPC-UA server on an 🔌 Arduino OPTA platform, complemented by a 🌐 Node-RED client that serves as a control panel for the OPTA-based system. It enables real-time control and monitoring of:

  • ⚙ OPTA relays
  • 🔘 Digital inputs (e.g., buttons)
  • 🌡 Modbus-connected temperature and humidity sensor via the OPTA’s Modbus port

The repository was created to demonstrate seamless industrial device integration via OPC-UA for an interactive demo—showcased at the 🤖 Automate 2025 exhibition in Detroit.

📡 What Is OPC-UA?

OPC Unified Architecture (OPC-UA) is a versatile, platform-agnostic communication protocol widely used in 🏭 industrial automation.
Key attributes:

  • 🔒 Secure by design – authentication, encryption, and integrity checks.
  • 📈 Scalable and robust – from embedded devices to enterprise systems.
  • 🔄 Interoperable – information-model approach for structured data exchange.
  • 💻 Platform-independent – standardized, service-oriented architecture.

Leveraging OPC-UA in this project allows smooth integration between Arduino OPTA hardware and higher-level systems like Node-RED, creating a unified, interoperable control and monitoring interface.

🖥 node-red-opc-ua-client/

Contains the Node-RED flow that:

  • 📡 Connects as an OPC-UA client to the Arduino OPTA server
  • 🎛 Provides a dashboard to:
    • ⚙ Toggle relays
    • 🔘 Monitor button states
    • 🌡 Display sensor readings in real time
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Flow Info

Created 6 months ago
Rating: not yet rated
view on github

Owner

ffich

Actions

Rate:

Node Types

Core
  • function (x1)
  • inject (x2)
Other
  • OpcUa-Client (x3)
  • OpcUa-Endpoint (x1)
  • OpcUa-Item (x7)
  • group (x3)
  • tab (x1)
  • ui_chart (x1)
  • ui_gauge (x1)
  • ui_group (x4)
  • ui_led (x1)
  • ui_switch (x5)
  • ui_tab (x1)

Tags

  • OPC-UA
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