Open Source Summit Europe 2024

Lessons learned, benefits and some drawbacks learned from utilizing Embedded Linux, Yocto Project and other parts of Opensource software stack in development, production and maintenance of Mobile Robots for special operations. A history of the Polish mobile robots has begun in 1999 with a prototype INSPECTOR robot designed and build by Łukasiewicz Research Network – Industrial Research Institute for Automation and Measurements PIAP. Since about 2010 the robots became digital and started to use Linux and build systems. The talk covers some practical aspects of design and implementation of ARM and x86 Explosive Ordnance Disposal (EOD) mobile robots, the industry transformation and response to Embedded Linux and Yocto Project software stack from a perspective of small engineering team chasing a constantly shifting targets. An insight, successes and failures throughout more than 10 years of utilizing Embedded Linux, Yocto Project, real-time aspects of the operating system and additional topics such as software update, system monitoring, safety critical operations and data encryption and safety will be also covered.

In this talk we will give you a comprehensive overview of the complex task of building a high-performance DC vehicle charging station. We will show you how the EVerest project addresses a diverse set of challenges across all areas of the required software stack. EVerest abstracts away the complexities of reliably communicating with vehicles of all makes and models to enable successful charging sessions with robust implementations of the relevant communication protocols, such as ISO 15118-2/20 and DIN 70121 including Plug & Charge. Communication with backend systems of different providers can be achieved through the OCPP 2.0.1 and 1.6 standards. We will also explain how error handling and reporting are managed in a system running a diverse set of EVerest modules. Additionally we will discuss our strategy for generating comprehensive documentation for a project that spans multiple actively developed repositories. EVerest is an Apache 2.0 licensed project within LF Energy. It was initiated by PIONIX GmbH to support the electrification of the mobility sector.

In this session, the status of the elinux wiki will be discussed, along with ideas for expanding and updating the content for the site. The elinux wiki has served as a resource for embedded Linux developers for almost 18 years. The wiki contains a lot of great material, including slides and videos for almost every embedded Linux Conference. In this session, Tim will discuss the wiki, and we'll brainstorm ideas for rejuvenating the site, and utilizing it as an effective community resource. Rewards will be available if you make an edit to the wiki during the BOF!! Let's work together to improve this valuable resource!

Linux in space must be highly reliable and autonomous, both because of the hostile external environment, the physical unavailability of the system, and the limited data flow and direct system administration capabilities. Radiation and other external influences lead to sudden shutdowns and system reboots. Also, data stored in storage devices are at risk of radiation and physical effects. Therefore, the design of a satellite always considers which parts of the system to duplicate or otherwise insure and how to ensure the system's ability to detect an error and recover. In the design of Linux4Space, we have encountered various approaches to solving the problem (from "we have two SD cards, and one is sure to last six months" to "fully duplicated storage and CPU with error detection"). We have reviewed the designs of other satellites and systems. In this paper, we provide some specific examples from natural satellites and summarize everything we have been able to find and track down for various other solutions, examples, and demonstrations.

Automotive Grade Linux released the Quirky Quillback version of the UCB in February and Royal Ricefish is coming in the Summer of 2024. The latest release includes an update to the Yocto project LTS version 5.0. We will give an update on the latest AGL features included in the Ricefish release. We also want to share some lessons learned from upgrading from the 4.0 to 5.0 versions of the Yocto Project.

Building robust audio policies on embedded systems that integrate well with upstream APIs and components such as PipeWire and PulseAudio has been a challenging task for a long time. In many implementations, custom hardware DSP management components are built, bypassing existing upstream functionality, making integration and maintenance harder than they need to be. In this talk, George will explain how many of these difficulties can be overcome by integrating management directly into WirePlumber, the default session manager of PipeWire, and how existing functionality can be factored in to build complex solutions with ease. Emphasis will be given also on how recent developments in WirePlumber have improved this particular use case.