Architecting Resource-Constrained Systems

Connext® DDS Micro is the first connectivity software designed for resource-constrained applications in real-world systems. It provides a small-footprint connectivity framework for IIoT devices that have minimal memory and CPU power, and that may not even have an operating system. Connext DDS Micro simultaneously satisfies demanding real-time performance requirements with meeting stringent resource constraints. By abstracting out low-level networking and communication details, it reduces development costs to minimize the amount of custom connectivity or integration code that developers would otherwise have to create.


Data-centric distributed architecture designed for resource-constrained systems.

Broad Hardware and Operating System Support

Provided as portable source code with minimal operating system dependencies; example ports available for all common CPUs and operating systems, as well as bare metal devices with no OS.

Decentralized System Architecture

Self-contained and easy-to-embed library; communication does not require centralized message brokers or daemon processes for low latency and high scalability with no single point of failure.

Deterministic Resource Utilization

All memory utilization is fixed based on resource constraints; no dynamic memory allocation is required; efficient serialization and compact wire representation also minimize CPU and network overheard.

DDS and DDS Security Standard Compliance

Standards-based solution based on Object Management Group (OMG®) Data Distribution Service (DDS®) programming interface and RTPS wire interoperability protocol. Complies with DDS Security and demonstrates interoperability with other DDS implementations.

Connext DDS Micro in 2 Minutes

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Customer Snapshots

RTI Connext DDS is proven in real-world applications across the Industrial IoT to connect and secure intelligent, mission-critical systems.

BK Ultrasound

Learn how BK Ultrasound is using Connext DDS to build cost-effective healthcare systems for greater integration with patient care systems to improve decision-making for doctors.

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GE Transportation

Learn how GE Transportation’s connected rail enterprise is using Connext DDS, leveraging advanced software and powerful analytics to enhance visibility into the control architecture.

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Read how OpenROV is leveraging Connext DDS to solve complex connectivity challenges in their underwater drones, including low-latency video, live streaming and real-time recording.

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European Space Agency (ESA)

Read how ESA is using Connext DDS to manage real-time communications between the International Space Station and a robot on a planet’s surface.

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We offer simple, open and fair pricing. Depending on the nature of your project, pricing options include Commercial, Research, Academic and Open Source licenses. We also offer a free 30-day trial.

Commercial Licences

Pricing is based on the number of developers using Connext DDS on your project. Distribution of applications that use RTI core products is royalty-free.

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Try a fully-functional version of the leading IIoT connectivity framework, Connext DDS 6.0, for 30 days.

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Research and University Program

RTI is committed to supporting universities in their research labs and classroom projects. We offer a free, one-year, renewable license to RTI Connext DDS Secure for academic, noncommercial use.

Research and Non-Commercial

RTI offers special license programs for qualified research and non-commercial use. Download a free trial to apply.