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+--- Thread: OPC UA Server for KC868-A16V3: From Smart Home to Industrial Gateway (/showthread.php?tid=8817)
OPC UA Server for KC868-A16V3: From Smart Home to Industrial Gateway - aksurd - 12-12-2025
1. Introduction
Hello everyone,
I purchased the KC868-A16V3 controller and was genuinely impressed by its hardware capabilities. To explore its potential beyond smart home applications, I developed a fully functional OPC UA server as a proof-of-concept. This project transforms the A16V3 into a practical industrial OPC UA data gateway.
2. Project Overview & Features
This is a stable, working implementation that demonstrates the controller's ability to serve as an industrial communication node:
- OPC UA Server: Full server implementation based on open62541 and ESP-IDF.
- Hardware Support: Utilizes all core I/O of the A16V3:
- 16 digital input/output channels (via integrated PCF8574).
- 4 analog input (ADC) channels.
- 16 digital input/output channels (via integrated PCF8574).
- Performance: Achieves consistent read times of less than 5ms per tag in testing.
- Real-World Validation: Successfully integrated and tested with an industrial SCADA system (Simple SCADA). Screenshots are attached below.
- Complete & Open: All source code is available, documented, and ready to be built upon.
The project is not a commercial product but a verified and stable proof-of-concept. The screenshots below show the server's data points (tags) being actively read and monitored in a real SCADA client interface, confirming successful integration.
*(Прикрепи здесь 1-2 ключевых скриншота из Simple SCADA)*
4. Project Goals & Status
- Primary Goal: To demonstrate that affordable, accessible hardware like the KC868-A16V3 can be effectively adapted for standard industrial protocols.
- Current Status: Stable proof-of-concept. All core functionalities are implemented, tested, and operational. The code provides a solid foundation for further development, pilot projects, or customization.
- Disclaimer: This is an open-source community project, not an official or commercial product from KinCony.
- GitHub Repository (Full Source Code): https://github.com/Aksurd/opcua-kincony-a16v3
- Direct Download: For users who may have difficulty accessing GitHub, I have attached the complete source code archive
to this post. It contains all necessary files to explore and build the project.Code:forum-release.zip
I welcome all feedback, technical questions, and ideas. I am particularly interested in discussions about:
- Potential improvements for reliability in industrial environments.
- Use cases for pilot projects or light automation tasks.
- Collaboration possibilities to enhance the ecosystem around KinCony hardware.