Examples

We offer a variety of ready-to-run OPC UA examples on GitHub for download and experimentation. Start with the README in that directory; it explains the example layout and the Mako Server learning examples.

The examples are tailored for our two pre-compiled and ready-to-use Barracuda App Server products:

1. Mako Server: Suitable for high-level operating systems with pre-compiled binaries available for Windows, Linux, and many embedded Linux devices, including Raspberry Pi.

2. Xedge32: A web-based IDE for the ESP32 microcontroller. The ESP32 development boards are cost-effective and user-friendly. You can install the Xedge32 firmware directly onto the ESP32 from your browser.

• Learning OPC UA with Mako Server
  • Run the tutorial examples
  • Run the PubSub tutorial examples
  • 1. Minimal server
  • 2. Add a folder
  • 3. Add variables
  • 4. Write a variable
  • 5. Use a value callback
  • 6. Read with a local client
  • 7. Write with a local client
  • 8. Call a method
  • 9. Define a structure type
  • 10. Publish JSON with MQTT PubSub
  • 11. Publish binary UADP with MQTT PubSub
  • 12. Publish an OPC UA server node
  • More advanced PubSub examples
  • Next steps
• How to Connect Third-Party Clients
  • UAExpert
  • ProSys OPC UA
  • dataFEED OPCUA
• ESP32 Microcontroller Examples
  • Ready-to-run OPC UA Server Example
  • Ignition SCADA
    • Add the ESP32 OPCUA server to Ignition
    • Ready-to-use Ignition Visualization Project