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The task is to extend an existing AMX NetLinx program on an NX-3200 controller by adding a new feature set that enables seamless, bidirectional communication with a KNX installation. Remote access to the live system, its current source code, and a KNX IP gateway will be provided through a VPN. Scope The existing codebase is stable; no bug-fix work is needed. The focus is strictly on developing and inserting well-structured NetLinx modules (Duet or classic, whichever you feel is best) that expose KNX group addresses so the NX-3200 can trigger and monitor lighting, HVAC, and any other KNX-enabled devices in the building. If a reusable third-party library makes sense, feel free to recommend it; otherwise a clean, from-scratch implementation is acceptable. Deliverables • NetLinx source files and compiled .tkn modules implementing KNX integration • A small demo routine showing how to call the new functions from the existing program • A concise README covering installation, customisable parameters, and KNX address mapping • One live remote test session to verify that commands sent from the AMX touch panel reach KNX devices and that KNX state changes are reflected back on the panel Acceptance criteria 1. All KNX group addresses listed in the brief respond within one second to AMX triggers. 2. Status feedback from KNX updates the AMX UI without manual refresh. 3. No existing AMX functions or timers are broken, and CPU utilisation on the NX-3200 remains within normal operating range after 24-hour soak test. NetLinx Studio, TPDesign5, and a Git repository are already in place; commits must compile cleanly with the current NetLinx firmware. Once the above criteria are met and documentation is complete, the job is considered done.
Project ID: 40475119
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20 freelancers are bidding on average $35 USD/hour for this job

I would love if I get the chance to work on your project. AMX and KNX integration is exactly the kind of building automation work I enjoy, and I can extend your NX-3200 cleanly without disturbing what already runs. I can build the integration in NetLinx Studio as Duet modules talking to your KNX IP gateway, exposing group addresses for lighting, HVAC, and other devices so the AMX panel triggers and reads state live, with status feedback updating the UI without refresh. Demo routine, README with address mapping, and a remote test session to verify everything end to end. Quick call? Best, Dev S.
$50 USD in 40 days
6.2
6.2

Hello, I’ve reviewed your NX-3200/KNX integration scope carefully. Since the existing NetLinx codebase is already stable, the focus is on adding a clean, modular KNX communication layer without affecting current timers, UI logic, or controller performance. The bidirectional requirement—fast AMX-triggered KNX actions plus live KNX feedback to touch panels within one second—is critical for reliable building control. I will develop structured NetLinx modules for KNX/IP communication using either Duet or classic NetLinx depending on firmware compatibility and project architecture. The solution will expose configurable KNX group addresses for lighting, HVAC, and other KNX devices while maintaining real-time feedback updates for the AMX UI. I’ll also implement connection supervision, retry handling, and efficient event-driven parsing to keep CPU utilization stable during extended operation. I can begin immediately using your VPN environment, Git workflow, and current NetLinx Studio setup to ensure seamless integration with the existing project. As a Preferred Freelancer on Freelancer.com—recognized among the platform’s top 1% professionals—you can expect reliable communication, consistent quality, and professional project execution. Best regards, Asif Baloch
$38 USD in 40 days
5.0
5.0

Hi, I've thoroughly reviewed your project requirements for extending the AMX NetLinx program to integrate seamless bidirectional communication with your KNX installation. With extensive experience in embedded systems and automation programming, especially in AMX NetLinx environments, I am confident in delivering a robust and well-structured module that meets your strict responsiveness and CPU utilization criteria. I will develop clean, modular code, either Duet or classic NetLinx as fits best, that exposes KNX group addresses to control lighting, HVAC, and other devices. I can recommend or integrate reusable third-party libraries if beneficial, ensuring maintainability and efficiency. Your provided VPN access and current source will streamline development, enabling a thorough live test. The deliverables will include complete source and compiled modules, a demo routine for your existing program, clear documentation including KNX mapping, and a live remote test session to validate command and status updates in real time. I propose starting immediately with a project duration of about 7 days to cover coding, testing, and documentation comprehensively. Could you please share the brief with the KNX group addresses and any preferred coding style or libraries you want me to consider? Best regards,
$25 USD in 20 days
4.4
4.4

With a robust skillset that includes full-stack web development and an in-depth experience in developing NetLinx programs, I believe I possess the ideal qualifications for your AMX NetLinx-KNX Integration project. I have a deep understanding of scopes and deliverables, ensuring my work aligns precisely with the client's needs and specifications. Building on PHP, Node.js and specifically, C# programming, I am more than capable of elegantly extending your existing AMX NetLinx program to enable smooth bidirectional communication with KNX. Having always delivered results of the highest quality within given time frames I am confident of seamlessly integrating the required functionalities without disturbing current processes. I'd like to emphasize that quality isn't just about functionality but also about stability - something that parallels your project's focus on a stable codebase. Therefore, if you choose me for this project, be certain that your NetLinx firmware would not only compile cleanly but also maintain normal CPU utilization on the NX-3200 after a 24-hour soak test. Let's make your AMX touch panel KNX-ready at both ends!
$38 USD in 40 days
2.6
2.6

A Warm Hello! I carefully reviewed your AMX NetLinx + KNX integration requirements, and I understand that the priority is to extend the existing stable NX-3200 system cleanly without disrupting current logic, timers, or controller performance. This is fundamentally an interoperability and real-time automation integration task where reliability, low latency, and maintainable module structure are critical. I can help you with: Bidirectional KNX ↔ AMX communication layer Structured NetLinx modules (classic or Duet depending on architecture suitability) KNX group address mapping and abstraction Real-time lighting, HVAC, and automation control synchronization Feedback/state monitoring from KNX back to AMX UI VPN-based remote testing and live validation README documentation and demo integration routines My approach would focus on: Keeping the KNX integration modular and isolated from existing stable logic Ensuring asynchronous event handling for fast status propagation Minimizing NX-3200 resource overhead during continuous operation Clean logging/debugging hooks for future expansion and troubleshooting I’m also comfortable working with: NetLinx Studio TPDesign5 Git-based workflows KNX IP gateways and group addressing structures Remote/VPN automation environments I’d be happy to collaborate and deliver a stable, production-ready KNX integration layer for your AMX environment. Let's discuss it more in chat. Best Regards, Jemin Sagar
$25 USD in 40 days
0.0
0.0

Hi, how are you doing? I have solid hands-on work extending AMX NetLinx projects and I’ve built modules to expose KNX group addresses for control and feedback, with clean, testable code and a simple demo to show usage. I can work with your NX-3200, KNX IP gateway, and VPN to deliver NetLinx source, compiled modules, a lightweight README, and a live remote test session. Let me know further if interested
$50 USD in 5 days
0.0
0.0

Hi, I’ve ever worked with AMX NetLinx systems and IP-based protocol integrations, and this project is a fit for my background. I can extend your existing NX-3200 program with a clean KNX communication layer while keeping the current codebase stable and untouched outside the required integration points. I’m comfortable working remotely through VPN and validating response timing and soak-test stability as part of the final acceptance phase. If helpful, I can also recommend whether a reusable KNX library is worthwhile after reviewing the existing codebase and gateway setup. Looking forward to discussing the KNX address structure and current NetLinx architecture. Best regards
$38 USD in 40 days
0.0
0.0

I am a perfect fit for your project. Your requirement for seamless, bidirectional communication between the NX-3200 and KNX devices with clean NetLinx modules aligns with my focus on clean implementation and efficient automation. I will ensure timely response to KNX group addresses and real-time status feedback, maintaining existing functions and optimal CPU use. While I am new to Freelancer, I have strong experience integrating AMX and building automation systems and have delivered similar solutions outside the platform. I offer a free consultation to fully understand your system and recommend the best technical approach. I would love to chat more about your project! Regards, Sonny Dube
$25 USD in 14 days
0.0
0.0

We’ve worked on a project with a very similar scope, giving me strong insight into delivering quality results efficiently. I understand the importance of a clean user-friendly UI for high-end customers. With a proven track record in integrating AMX systems and KNX installations seamlessly, I am confident in developing well-structured NetLinx modules that expose KNX group addresses for lighting, HVAC, and other devices. Let's chat about your project and walk away with a free consultation to discuss how we can achieve your integration goals efficiently. Regards, Nabeel Ismail
$25 USD in 7 days
0.0
0.0

Hi there, As an expert in Automation, Documentation and Embedded Systems, I profoundly understand the essence of extending an existing codebase without causing any disruption. My skills range from NetLinx Studio to diverse programming languages which make me adept at adding the desired feature set to your AMX NetLinx program while ensuring the stability of the existing codebase on your NX-3200 controller. In terms of my professional experiences, I have worked extensively with APIs and microservices, customized parameters like what your project entails, and I'm well-versed in using third-party libraries when they make sense, just as you've mentioned. Additionally, my robust knowledge in DevOps will be valuable for this task, allowing me to leverage Git repository functionality for a seamless modification experience.
$30 USD in 40 days
3.0
3.0

WE'VE JUST COMPLETED A SIMILAR PROJECT where we helped an education company build a mobile and web platform that scans handwritten checklists, captures notes, and converts everything into real-time analytics and reporting dashboards. We helped them automate educator workflows, improve reporting accuracy, reduce manual admin work, and create a fast, scalable system with secure role-based access across mobile and web. I'd love to chat about your project! The worst that can happen is you walk away with a free consultation. Kind Regards Reece Dear Project Owner, Your AMX NetLinx-KNX Integration project presents an exciting opportunity to enhance your system's capabilities. Leveraging our expertise in developing seamless communication between different technologies, we can deliver a solution that ensures efficient interaction between your AMX and KNX systems. Our approach involves developing well-structured NetLinx modules that facilitate bidirectional communication, allowing you to trigger and monitor various KNX-enabled devices in your building. We will provide comprehensive documentation, including source files, demo routines, and installation guides, to ensure successful implementation. Let's collaborate to enhance your system's functionality and efficiency. Reach out to ReeceVT05 for a free consultation. Best regards, ReeceVT05
$25 USD in 7 days
0.0
0.0

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