Category Archives: Events @en

BattleMesh v14 and WCW 2022

In 2022 it finally takes place again: Freifunk is supporting BattleMesh again this year. After the Wireless Community Weekend in Weimar, this is the second event this year that deals with mesh networks.

The logo includes a radio tower and the Colosseum from Rome. On the radio tower is a hand with fingers pressed together. On the right side are the dates for the BattleMesh.
Logo and Announcement

BattleMesh v14

The BattleMesh is an event that brings together people from all over the world who are interested in building community networks. This includes WLAN networks, fiber optic infrastructure and cooperatively run internet providers. More generally, it’s about how to start and sustain communities that are involved in building their own networks.

We expect 4 days of talks, practical workshops, late-night hack sessions, and fruitful discussions. Come along if you are interested in mesh networking, if you are active in community networks, if you are a protocol developer or if you are interested in networking in general. Afterward, there is the possibility to visit the RomeHack Camp.

This year’s Battlemesh will take place from 19 to 22 September 2022 at Fusolab in Rome. There are organizers on site. Regular updates and new information can be found at

Please get in touch if you need assistance with travel costs.

Wireless Community Weekend 2022

From 27 to 29 May the Wireless Community Weekend took place in Weimar. For the first time, not at the c-base in Berlin, but at the M18. The WCW was organised by the Weimarnetz and the Maschinenraum Weimar.

A total of almost 30 participants were welcomed. On-site, there was the usual picture: people sat together, alternately looking into their laptops and at the hardware that did not yet have perfect OpenWRT support. Of course, there was also a barbecue, which burned often enough.

On all 3 days, there were lectures and workshops with sometimes lively and lengthy discussions. The lectures on Saturday were recorded and are already published in our media library.

These pictures show a few impressions:

We support Battlemesh v12 in Paris

Freifunk supports this year’s “Wireless Battle of the Mesh – Building Community Networks for Fun and Non-Profit”.

The event aims to bring together people from across the globe who are interested in community networks, including wireless mesh network technologies, fiber infrastructure, Do-It-Yourself Internet Access Providers, and more generally how to create and maintain a thriving community of people involved in building their own networks.

We envision 7 days full of expert presentations, practical workshops, late-night hacking sessions, and fruitful discussions: whether you are a mesh networking enthusiast, community networking activist, protocol developer, or have an interest in networking in general, come and join the event!

Thanks to generous sponsors, the Battlemesh is free of charge and open for all, and every year the local organization team strives to keep participation costs low by negotiating deals for accommodation and food.

This year, the event will take place from Monday 8th to Sunday 14th of July, 2019 in Saint-Denis (Paris), France. The event is locally organized. Check out continuously updated information about the event at

Freifunk endorses and supports “Wireless Battle of the Mesh – Building Community Networks for Fun and Non-Profit” not only for the efforts made by its community to advance the field of wireless mesh networking and foster the development of grass-roots community networks, but for their contribution to digital freedom rights movement, empowerment of peoples tech/net/media competency and a free and open civil society.

Freifunk will support the event by:

  • bringing members of the community to the event
  • sponsoring and collecting donations via betterplace

Mesh is in the Air

The Wireless Battle of the Mesh v11 (#WBMv11) and the Wireless Community Weekend 2018 (#FFWCW18) will be meshed up and co-located in Berlin from May 07 to May 13, 2018. Since it is the 15th anniversary of the WCW, friends and fellows from across the globe celebrate together wireless mesh network technologies and ideas of community networking.

You can expect to meet with tech experts in mesh technologies, policy discussions, talks, hands on workshops, late night hacking sessions, measurement campaigns and an ongoing barbeque at the riverside. If you are a mesh networking enthusiast, community activist, or simply have an interest in wifi or dynamic routing protocols, you can’t miss this event!

So check out our continuously updated information about the event at


We are meeting at the c-base space station, 3 minutes from public transport S+U Jannowitzbrücke in the heart of Berlin.

There you will find the main hall with the bar for presentations, discussions and hacking, a seminar room for up to 15 for workshops, two spaces for a smaller groups in the basement and upper floor and not at least the fully equipped riverside with powersockets, light close to the grill station. For the weekend we booked another room for presentations at European Theater Institute right next door to the seminar room.

You will find yourself at Berlin’s most famous hackspace, where you can use repair and assembling shops as well as meeting with Berlin’s net activists and hacker scene. is available, since the roof top node is part of the BerlinBackBone.

Taking part and Registration

It helps the organizers, if you add yourself early to the wiki page under and provide your meal prefernces and t-shirt size, in case you want one. Start preparing your presentation, lightening talk, workshop, idea, announcement or open space you want to run. The event is *free of charge*, but contributions are very welcome, so please have a look at the supporters page as well, thanks in advance.

Accommodation Offering

For those of you who are looking for a convenient accommodation option: we have made block reservation for 50 beds in a nice hostel 15 min walking distance or one station by public transport. The packages include 7 nights in a three or four-bed room incl. breakfast – for 33,00 EUR p.P/Night incl. Breakfast
Valid for:

  • 07.05.2018 – 13.05.2018
  • 50 Beds are reserved until 23.03.2018
  • 25 Beds are reserved until 05.04.2018
  • Payment at checkin – using cash or creditcard

IMPORTANT: Booking with this special price is only possible by mail or phone +493031879767
Stating that you want to stay at “EastSideGallery” mention the Keyword: MESH
Booked Rooms will be held until 6pm on arrival day – please let them know when you arrive later.

Catering and Social Events

There will be catering at dinner time and free coffee the whole time. Beverages can be bought at the bar, closeby kiosk or brought with you.

Some jaunts and social events are in planning, but will be announced later.

Spread the Word

Please help us spreading the word by forwarding this to all lists and people that might be interested. Blogging about it is also very appreciated, and if you do so, please add a ping-back to the wiki page:

We will also start the endorsements process within some weeks. If your community/organization would like to help and support us, please check supporters page.

Organizers Team Contact

The local core team consists of Monic, Andi, Cven and others from freifunk and c-base community.
The mentors team consists of Claudio, Filipe and Paul.

Meet Freifunk people in May and August!

Over the next months there will be a lot of opportunities to meet wireless communities and Freifunker from Germany and all over the world. Don’t miss the chance to build networks outside of your own community.

OpenTechSummit – Information desk and workshops

14.5.2015 in Berlin

Logo_OpenTecSummit_TXT_b_v1-0The day before our annual Wireless Community Weekend starts, the OpenTechSummit will take place for the first time in Berlin, Germany at the “Kalkscheune” venue close to Friedrichstraße station. Topics range from open hardware to design, graphics, software, networks, knowledge and digital policies. There will be DIY workshops for kids and techies. Freifunk will present itself with an information desk and provides workshops e.g. on upgrading Wifi routers. After the evening there will be an “OpenTech-Himmelfahrt” lounge. You can find information on the schedule and how the get tickets on the OpenTechSummit website.

WCW – Meet German Freifunk communities and international guest to chat, hack, chill and BBQ

15.5.-17.5.2015 in Berlin

WCW_illustration_2015Like every year german speaking communities will meet with international guests at c-base in Berlin. The „official programme“ starts at May 15th and lasts until May 17th. In fact, the final version of the agenda will be created by attendents on-site. If you add your idea or wishes to our wiki upfront, we can take care of your talk or workshop. Hack sessions are taking place the whole time.

This year we focus on topics like crypto, IPv6 and new services, but also like always latest firmware, new installation setups and last not least legal and political update plus public relations. We’ll also build an advisory council to settle on disputes and write down a Memorandum of Understanding on freifunk. Following the tradition we’ll have barbecue in the evening hours at Spree beach and we don’t charge entry fee. For more information and taking part, please look at

Add your ideas and proposals for workshops, talks or projects to our wiki. If you have limitations on time, please make a note to your proposal. Our timetable will be compiled on runtime.
Please add yourself to the list of participants, too. If you need accomodation, or if you can offer a couch, add it to the accomodation page.

We’re excited to meet you in Berlin!

BattlemeshV8 – International meetup of Wireless Communities

3.8.-9.8.2015 in Maribor/Slowenien

battlemeshv8The “Wireless Battle of the Mesh” is an event that aims to bring together people from across the globe to test the performance of different routing protocols for ad-hoc networks, like Babel, B.A.T.M.A.N., BMX, OLSR, and 802.11s.

Many developers and community networkers will join the event to hack, test, discuss, explain and learn.

The battlemesh is free of charge and open for all, every year we strive to keep participation costs low by negotiating deals for accommodation and food. This year the event will take place from 3rd to 9th August 2015 in Maribor, Slovenia and will be hosted by Wlan Slovenia.

If you are interested in dynamic routing protocols or wireless community networks you can’t miss this event! You want to talk about topics in this context? Propose your workshop or talk until May, 1st. Here’s the official announcement.

ChaosCamp – Freifunk Hacker Village

13.8.-16.8.2015 at Ziegeleipark Mildenberg

fairydustThe Chaos Communication Camp in Mildenberg is an open-air hacker camp and party that takes place every four years, organized by the Chaos Computer Club (CCC). Thousands of hackers, technology freaks, artists and utopians get together in a field for five days in the Brandenburg high summer – to communicate, learn, hack on things and party together. You can find Freifunk communities at the Freifunk Hacker Village. Visit us there, bring your tent.

Place of the event will be Ziegeleipark Mildenberg. Hackers will meet there from August 13th to 17th. Prices for tickets aren’t fixed for now, but a pre-sale is announced. Save the date for a summer vacation with like-minded people, including working hand rail trollies and locomotives!

Google Summer of Code 2014

Google uses open source software for many of its services. Google thanks the Open Source community and support students with a $ 5,500 funded project called “The Google Summer of Code”, which this year, ran from May to August. More than 1,100 students from around the world participated.

In 2014, Freifunk participated in the Google Summer of Code, again. Freifunk is like an umbrella organization for several initiatives from around the world:,, wlan slovenija and libremesh. We were given 9 “slots“ this year, for projects awarded to students in Germany, France, Italy, Spain and Slovenia. The projects include the Freifunk API, network protocols and software for community management. Details about each project can be found on the Freifunk Blog.


Freifunk meets Linus Torvalds

The conclusion of this year’s Google Summer of Code was the Mentors Summit. Each organization was allowed to appoint two mentors. To celebrate the 10th Annual, participants from earlier years were invited and the Summit was extended by one day. More than 600 participants from around the world met in San Jose, California from Oct. 23. to Oct 26.2014, to discuss and showcase their projects, make new contacts and to celebrate the 10th Google Summer of Code. Surprise guest was Linus Torvalds. We had the opportunity to talk to him and tell him of Freifunk. Impressions and pictures of the Mentors Summit can be found on Flickr.

We would like to apply again as an organization in 2015. The application itself takes place in February 2015, but we can already gather ideas for projects in the wiki. If you have any contacts with universities or colleges, talk with faculty staff, students, and university professors to get support for projects in the summer term 2015.

Growing Together – A report from a successful Wireless Community Weekend 2014

More than sixty people from all over Europe came together at the C-Base in Berlin for the 10th Wireless Community Weekend, the most important meeting of the year for Germany’s Freifunk groups. Wonderful weather, a relaxed atmosphere and interesting lectures made for a productive weekend with lots of lively discussion, as shown by the feedback from Twitter surrounding the WCW.

There were many new faces from newly created groups. Alongside the recently founded groups, such as Magdeburg, Padeborn and Lüneburg were activists from all over Germany. Of course, the “usual suspects” from Berlin, Leipzig and Weimar played their part, as well as Developers from openWRT and OLSR. We’d also like to thank our sponsors and helpers as well as the c-base members for their hospitality and support.

The dual focal points of the WCW 2014 were Decentralisation and Cooperation:

  • How can we improve the cooperation between our communities and share resources whilst maintaining the decentralised structures of Freifunk? How can small or young communities profit and learn from the experiences of larger, established communities? The panel discussion on organisational structures emphasised the diverse views within the community and the importance of decentralisation whilst underlining the desire to deepen the existing collaborative efforts.
  • Which strategies should we pursue in using the IPv6 address space? The subject is complex and offers many, sometimes conflicting, alternatives. As part of a pilot project, communities in Berlin, Lübeck and Weimar have been provided with addresses from the IPv6 pool so that they can try various scenarios and share the knowledge gained with other groups.
  • Another lecture covered the latest developments in the Freifunk API. A Project born of the Google Summer of Code that supports us in searching and processing data.
  • The specifications and technical solutions surrounding the distribution of Freifunk templates of all kinds were discussed, as were public relations materials.
  • A further lecture covered the technical challenges involved in meshnetworks with wired and wireless segments and their solutions.
  • A Workshop was held dealing with offering decentralised services and storage whilst sharing these resources.
  • The Installation of Friendica as an open and decentralised alternative to Facebook and its configuration as an Internal and external service.
  • Last but not least: What is the legal situation? What have we achieved? How do we get predictability in legal decisions? What is the significance of a legal declaration on Freifunk.

Information on the lectures and workshops can be found in the Wiki.

Beyond that we worked on firmware, web Interfaces and written materials, we installed services, created podcasts, talked and, most importantly, barbecued.

We wish everybody in Freifunk a lot of fun and success in transposing and realising the knowledge and ideas gained, and look forward to seeing everyone again at the next Freifunk Community meetings:

10th Wireless Community Weekend 2014 in Berlin

WCW2014Starting Friday May 30 till Sunday June 1, 2014, c-base and the German wireless network community invites you to the “Freifunk Wireless Community Weekend” at the c-base space station in Berlin. Meet interesting people involved in Wireless Community Networks in other cities and countries.

This year’s main topics will be IPv6, encryption and community services and of course recurring topics like firmware development, new installations, legislation and PR. At the end of the day we’ll have a nice barbecue at the Spree river. All information can be found at our wiki.

Feel free to propose your own topics at the topic’s page on our wiki. The timetable will be created just in time.

If you need accomodation take a look at the accomodation page.

We’re looking forward to meet you in Berlin!

Join us at BattleMesh v7 and Wireless Community Weekend 2014

There are two events for free networks enthusiast comming up in may: BattleMesh v7 in Leipzig and the Wireless Community Weekend 2014 (WCW 2014) in Berlin. Please contribute

BattleMesh v7 in Leipzig

The next ‘Wireless Battle of the Meshes’ will take place from 12nd till 18th of May in Leipzig, Germany. The event aims to bring together people from across Europe to test the performance of different routing protocols for ad-hoc networks, like Babel, B.A.T.M.A.N., and OLSR. This will be improving the testbed conditions for mesh protocols with standardized testing procedures that will be reported after the event for the wireless communities.

If you are a mesh networking enthusiast, community networking activist, or have an interest in mesh networks join us! More informations about the event are gathered at:

Wireless Community Weekend 2014 (WCW 2014) in Berlin

Starting Friday May 30 till Sunday June 1, 2014, c-base and the German wireless network community invite you to the “Freifunk Wireless Community Weekend” at the c-base space station in Berlin. Meet interesting people involved in Wireless Community Networks in other cities and countries. You find more information and how to contribute at: