Today we’re releasing Environs version with some bug fixes.

  • Updated: Debug exception handling
  • Added: Limit Mediator max sendqueue items to 6000
  • Updated: Disposal of DeviceBase.UdpListener
  • Fixed: Crash in native layer due to (race condition in) device management list item access through DeviceBase
  • Added: string class to Tracer for debugging

Have a look at the for an exhaustive list of changes.

Environs version has been released with a complete rework of stunt connection establisher in Mediator layer so as to enable concurrent ongoing stunts. As part of this, the mediator protocol changed to V8. Unfortunately, sequential stunts as used in prior protocol versions conflicts with the new concurrent stunt approach. Hence stunt connections for earlier protocol versions are not supported anymore by our public mediator service. (However, feel free to build and use your own mediator server with earlier revisions of Environs if for any reason you still need that functionality).

  • Added: Mediator server use cached decrypt key
  • Added: Mediator layer high priority queue
  • Fixed: Bug in stunt channel establisher
  • Updated: Mediator client layer send thread usage
  • Reworked: Concurrent stunt implementation
  • Fixed: Bug in Mediator layer compress algorithm
  • Updated: Disposal of concurrent stunt sockets
  • Updated: Stunt locks
  • Updated: Code for concurrent stunt in mediator layer

Have a look at the for an exhaustive list of changes.

Up to now, Environs has been made public ( and open source ( and the most important concepts as well as design rationales have been published in the proceedings of the EICS conference in 2014.

Potential usage examples have been presented and discussed, e.g. in the domain of Internet of Things (ITS 2014, Dresden) or collaborative visualization of energy consumptions (INTERACT 2015, Bamberg).

In order to further promote Environs and discuss the applicability of the concepts behind, the Environs framework has been submitted and (fortunately) accepted for discussion in workshops at the Interactive Tabletops and Surfaces conference in Madeira, Portugal, – November 2015.

–> Interact 2015 conference
–> Cross-Surface: Workshop on Interacting with Multi-Device Ecologies in the Wild
—-> A Framework Towards Challenges and Issues of Multi-Surface Environments
–> Shared Infrastructures for Tangible Tabletops & Interactive Surfaces

Environs enables real-time streaming of sensor data from mobile (or desktop) devices to other connected devices employing the low latency infrastructure of Environs. In order to show how to do this, we have added the project SensorData to the examples applications.
As of release 0.8.7, the examples demonstrate how to enable the different kind of supported sensor data (accelerometer, magnetic field, gyroscope, and calculated orientation) and also how to get notified through an observer as well as visualizing the data similar to an oscilloscope.
Currently, there are examples for the Android and OSX platform as shown in the images below. Implementation of the examples for iOS and Windows will follow soon.

OSX SensorData


Android SensorData


Environs has been accepted for a workshop at the Interact 2015 conference in Bamberg for publication, September 2015.
–> Interact 2015 conference
–> Workshop on Fostering Smart Energy Applications

Dang, Chi-Tai, Masoodian, M., and André, E., 
Private Focus Portals to Shared Energy Visualizations. 
Adjunct Conference Proceedings of INTERACT 2015, 
INTERACT Workshop on Fostering Smart Energy Applications, 
FSEA 2015 (Bamberg, Germany, 15 September),
University of Bamberg Press, To appear.