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Open source solution
Micro XRCE-DDS

eProsima Micro XRCE-DDS is an open source wire protocol that implements the OMG DDS for eXtremly Resource Constrained Environment standard (DDS-XRCE). The aim of the DDS-XRCE protocol is to provide access to the DDS Global-Data-Space from resource-constrained devices. This is achieved as a result of a client-server architecture, where low resource devices, called XRCE Clients, are connected to a server, called XRCE Agent, which acts on behalf of its clients in the DDS Global-Data-Space.

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Micro XRCE-DDS is composed by two main elements:

DDS Global-Data-Space

 

Apart from these, Micro XRCE-DDS uses two additional components:

  • Micro CDR: a de/serialization engine used in the Client library.
  • Micro XRCE-DDS Gen: a code generator tool used for generating Micro CDR de/serialization function and Client apps examples from IDL sources.

MAIN FEATURES:

Low Resource Consumption

  • The design and implementation of this middleware consider the memory restriction of the devices.
  • Micro XRCE-DDS Client is completely dynamic memory free, allocating all the memory at start-up.
  • From the point of view of memory footprint, the latest version of this library has a memory consumption of less than 75 KB of Flash memory and 2.5 KB of RAM for a complete publisher and subscriber application.

Multi-Transport Support

  • Contrary to other IoT middleware such as MQTT and CoaP which work over only a particular transport layer, XRCE supports multiple transport protocol natively. In particular, the latest version of Micro XRCE-DDS supports UDP, TCP, and a custom Serial transport protocol.
  • eProsima Micro XRCE-DDS has a transport interface for both Agent and Client which simplifies a transport custom design. This gives the user the possibility of implementing easily the port of Micro XRCE-DDS to different platforms and the addition of new transports.

Multi-Platform Support

  • eProsima Micro XRCE-DDS Client supports Windows, Linux, and NuttX as embedded RTOS.
  • eProsima Micro XRCE-DDS Agent supports Windows and Linux platform.

UPCOMING FEATURES:

  • Peer-to-peer communication.
  • Message fragmentation support.
  • Programmable Agent through modern CPP API.
  • FreeRTOS support.
  • Application configuration.

AVAILABLE DOCUMENTATION:

APPLICATION:

Micro XRCE-DDS is focused on microcontroller applications which require a publisher/subscriber architecture. Some examples of this kind of applications are found in a sensor network, IoT or robotics. 

Some important companies such as Renesas and ROBOTIS are using already Micro XRCE-DDS as the middleware solution. Furthermore, the micro-ROS project, an extension of ROS2 (The Robot Operating System) for microcontrollers, has adopted Micro XRCE-DDS as its middleware layer, easing the adoption of Micro XRCE-DDS by a big community of developers with thousands of robotic and IoT active projects.

MORE INFORMATION ABOUT EPROSIMA MICRO XRCE-DDS:

For any questions please contact This email address is being protected from spambots. You need JavaScript enabled to view it.

Government Sponsorship.

This product was partially funded by the Spanish Ministry of Energy, Tourism and Digital Agenda, within the National plan of Scientific Research, Development and Technological Innovation 2013-2016. (Project TSI-101000-2016-20)