Tag: free networks

Freifunk Application for Google Summer of Code – We did not make it .. this time

Posted on by Mario Behling

What happened to the application of the freifunk community (Blog entry) for the Google Summer of code? Well, as you can guess by now, unfortunately we did not get it.. even though we were close. I had asked Leslie Hawthorn and she wrote us back the following lines:

"I know OpenWRT and like them. We simply couldn’t accept everyone. You folks made our short list if that helps. I can give you more feedback if you send me the URL for your ideas list. Is there a way Google can help you beyond Summer of Code? Leslie Hawthorn"

We had some nice ideas. Our intention was to serve as an umbrella for all the freifunk projects here, but maybe we can join the program next year. We still have the ideas pages, which is probably also intresting for developers who want to join freifunk projects in the future.

Some of the project ideas were/are:

  • Multimedia Streaming in Mesh Networks / Porting Obamp to C++
  • Passive + Active Measurement in Mesh Networks / Porting OpenIMP probes to OpenWRT
  • Traffic Flow Visualization / IPFIX DataSource for freimap
  • Mesh Node Status Monitoring / SNMP DataSource for freimap
  • Service Discovery in Mesh Networks / Avahi DataSource for freimap
  • Service Control Module for freimap
  • Topology visualization / B.A.T.M.A.N and olsrd routing decision recovery for freimap
  • Database output for freimap
  • Antenna placement information elements in freifunk map data
  • Search in Wireless Mesh Networks – Yacy
  • Search in Wireless Mesh Networks – Nutch/Lucene
  • Peer-to-peer file sharing applications in Wireless Mesh Networks
  • Developing a Freifunk Theme for CMS
  • VoIP phoning in Freifunk Mesh Networks
  • Porting Freifunk to EeePC
  • Freifunk Webinterface for OpenWrt Kamikaze

( http://wiki.freifunk.net/Ideas)

OpenEmbedded BeagleBoards soon available as tax free imports from outside the EU

Posted on by Mario Behling

Talking about OpenEmbedded: The BeagleBoard will be available soon. A Motherboard with 600MHz ARM CPU + 256 MIB NAND-Flash + 128 MiB RAM + USB Host + and many more features. Details here: http://elinux.org/BeagleBoard. The price will be around 150.-US$. This matches perfectly with the new regulations of small selfimports from outside the EU. Starting from December 1, 2008 products not exceeding the value of 150,- Euros will be freed from paying tariffs and tax. Until then the limit was 22,- Euro.

Mit Verordnung (EG) Nr. 274/2008 (PDF-Datei)
wurde unter anderem die Wertgrenze für die so genannten Kleinsendungen
(Artikel 27 der Verordnung (EWG) Nr. 918/83 – ZollbefreiungsVO) auf 150
Euro angehoben. Bislang wurden bereits bei Sendungen, deren Wert über 22 Euro lag Einfuhrabgaben fällig – außer es handelte sich um Importe aus Staaten
der Europäischen Gemeinschaft. Die angegebene Verordnung und die damit
erhöhte Wertgrenze gilt ab dem 1. Dezember 2008. Damit ist eine bislang
sehr enge Grenze für Eigenimporte etwa von HD-Discs aus dem Ausland
gefallen. (nij/c’t, 08.04.2008 08:38, http://www.heise.de/newsticker/Goldene-Zeiten-fuer-Eigenimporte–/meldung/106159/from/rss09)

Comment of Robert Schuster: "Ich finds gut: Embedded Systeme für alle und nicht für jene, die sich
teure Evalboards leisten können und ätzende NDAs unterscheiben wollen. :)"

By the way, Robert will have a presentation on OpenEmbedded at the upcoming Linuxtag in Berlin on from 3-4 pm on Thursday May 28, 2008 in Saal London (UG),

Open IEEE 802.11s

Posted on by Mario Behling

open80211s.org is an interesting project to open up the IEEE 802.11 industry standard for wireless mesh networks. Current mesh networks are based on mesh routing software working on higher network layers and on the 802.11a/b/g standard hardware. Mesh-Routing with the
802.11s standard is intended to be more efficient as the routing is "happening" at the MAC layer.

open80211s is a consortium of companies who are sponsoring (and
collaborating in) the creation of an open-source implementation of the
emerging IEEE 802.11s wireless mesh standard. The resulting software
will run on Linux on commodity PC hardware.
Goals
* To create the first open implementation of 802.11s.
* To let the world use it, understand it and contribute to it.
* To connect all the Linux devices in the world to One Big Mesh.
(open80211s.org)

IEEE 802.11s ist eine bisher noch nicht angenommene Teilspezifikation des IEEE 802.11-Industriestandards
für drahtlose Netzwerkkommunikation. Ziel von 802.11s ist ein
herstellerunabhängiger Standard zur Einrichtung von drahtlosen, vermaschten Netzwerken.
Im Unterschied zu derzeitigen Mesh-Netzen, die auf vorhandener
802.11a/b/g-Standard-Hardware und auf höheren Netzwerkebenen
arbeitender Mesh-Routing-Software basieren, findet das Mesh-Routing bei
802.11s in der MAC-Schicht statt und ist daher wesentlich effizienter,
insbesondere auch in Hinblick auf Hardwareanforderungen und
Energieverbrauch. (Version 3.2. 2008, 14:30, http://de.wikipedia.org/wiki/IEEE_802.11s)

IEEE 802.11s is a draft IEEE 802.11 amendment for mesh networking, defining how wireless devices can interconnect to create an ad-hoc network. 802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, and 802.11g versions to provide wireless connectivity in the home, office and some commercial establishments. It extends the IEEE 802.11 MAC standard by defining an architecture and protocol that support both broadcast/multicast and unicast delivery using "radio-aware metrics over self-configuring multi-hop topologies." (2 May 2008, 16:55, http://en.wikipedia.org/wiki/IEEE_802.11s)

 [via alx]

Wireless Community Networks List on Wikipedia

Posted on by Mario Behling

Thee free wireless community is growing and for some time I tried to keep a list of communities on the Global Newswire Site at http://global.freifunk.net/free_global_wireless_community. The bigger the community gets the more difficult it becomes. Instead of maintaining a seperate list of freifunk communities I will join the maintainers of a list of communities in the English Wikipedia, who have created a wiki page here: List of wireless community networks by region.

 

Spiegel.de: Open Hardware und freie Infrastrukturen – Unser Ziel

Posted on by Mario Behling

Juergen Neumann hat Elisabeth Rank vom Spiegel ein Interview  ueber die OpenTech-Konferenz in Taiwan vor zwei Wochen gegeben. Daraus ist ein Artikel entstanden, den ihr jetzt auf Spiegel Online lesen koennt "Freie Hardware, Die Zukunftsbastler".

In Taiwans De-facto-Hauptstadt Taipeh traf sich in der letzten
Aprilwoche ein Kreis von rund hundert freien Entwicklern, viele davon
Studenten, und bastelten gemeinsam an einer alternativen
Technikzukunft. Unterstützt von Asus und zwei Universitäten kamen dort
eben nicht IBM und Intel oder HP und Microsoft zusammen, sondern
Vertreter der KDE-Entwickler (Linux-Benutzeroberfläche), von Open
Pattern, der Berliner Initiative Freifunk, dem freien
Geo-Informationssystem Open Streetmap oder der freien Mobilplattform
OpenMoko. Die Idee zur Veranstaltung hatten Jürgen Neumann von Freifunk und
Joy Tang von der One Village Foundation vor zwei Jahren bei einem
Treffen der Open Hardware Initiative im indischen Dharamsala
entwickelt. Letztes Jahr im Sommer wurde die Konferenz konkret
beschlossen. Asus übernahm einen großen Teil der Finanzierung,
Organisation und Logistik. Der Rest wurde von den Teilnehmern
finanziert. (Die Zukunftsbastler, 8.5.2008, Elisabeth Rank, http://www.spiegel.de/netzwelt/tech/0,1518,551818,00.html)

Freifunk Wireless Community Weekend 2008 – Thank you!

Posted on by Mario Behling

The Freifunk Wireless Community Weekend 2008 is over. I had a fantastic time meeting so many people pushing the idea of free networks to new hights. The interest in free wireless was overwhelming and we probably had more than double the number of the 51 visitors who put their names on the participants list. Many developers were taking part. We saw presentations about OpenWRT, B.A.T.M.A.N., the HorstTool, mikroFM, OpenHardware and the Luci-Interface for Freifunk networks. Receiving questions about "free networks and the implications of the law" regularly, we were extremely pleased that Reto Mantz recently published a doctoral thesis about this subject and held a presentation at the WCW (slides now available).

Besides German communities we were very happy to meet many friends from other countries like www.guifi.net from Catalunia, Spain, Sergey Yugov from Russia, Jesper Svarre with 28 people from Denmark and our friends from the Rome community ninux.org.

Together with the help of Italian and German Freifunkers Saverio and me made tons of interviews. Be sure it will not take two years this time to see them online 😉 Get a little taste of the WCW2008 with the first of a series of videos already published by our Italian friends.

Per ora vi lascio con questo breve video, che mostra qualche immagine
della domenicale del Wireless Community Weekend. Molto presto verranno
pubblicate le interviste. (http://blog.ninux.org/2008/05/05/lultima-sera-al-wcw2008/)

Direct Link: http://www.youtube.com/watch?v=gGZcH49j4hw

Last Preparations for the Freifunk Wireless Community Weekend 2008 in Berlin

Posted on by Mario Behling

The countdown for the Freifunk Wireless Community Weekend 2008 conference is running and cven is haevily working on the final preparation.

As of now we have 48 people who have put their name on the participants list on the wiki at http://wiki.freifunk.net/WCW08:participants and many more who have confirmed their participation to us directly. People are joining us in the upcoming days from Freifunk communities from all over Germany and from communities in other countries. Our friends from Italy will be represented by the two well known free wireless evangelists Nino and Saverio from ninux.org and we expect Jesper Svarre from Denmark with a group of 25 people from the Association of Computer Professionals.

The WCW is a self organized conference and community gathering. We will have a community track with communities presenting themselves, e.g. from Bastian from the Weimar Freifunkers and from Keks from the community in Berlin North-East.

On the other side there will be technical talks from developers of OpenWRT, the B.A.T.M.A.N. routing protocol developers Marek Lindner and Simon Wunderlich; Thomas Hirsch – the developer of the freimap and a presentation of sven-ola – the main developer of the Freifunk Firmware,

Further panels cover subjects like Web 2.0 in the Freifunk Universe (by me, Mario Behling) or Open Networks and the current law by Dr. Reto Mantz, who has recently published a book on "Offene Netze und Recht",

Many opportunities to meet with some of the most exciting people in the international freifunk sphere! Open Mesh advocat Electra will take part in the WCW and after returning from the Open Tech Summit in Taiwan Juergen Neumann will present the latest advancements on Open Wireless Hardware. 

Last but not least we are happy to welcome participants from the academic scene coming from the TU Berlin and the Fraunhofer FOKUS Institute.

Join us at the Freifunki Wireless Community Weekend in Berlin from May 2-4! Check out the latest updates on http://wiki.freifunk.net/Wireless_Community_Weekend_2008

Towards Wireless Open Hardware Routers and WLAN Servers

Posted on by Mario Behling

At the CeBIT I had the chance to talk to some fantastic folks of direct open embedded systems, a new Latvian company that is producing WLAN devices based on the GNU/Linux distributions like OpenWRT, OpenEmbedded and FlashSYS Linux.

In the video they present their devices and some show cases as well as FlashSYS, their own web based firmware for small router computers.

FlashSYS environment is a cross-operating system clent-server environment that allows developers to use existing web development skills (HTML, JavaScript, Ajax, Flash, SQLite, and Lua) to build and deploy Rich Internet Applications (RIA) for an embedded system with a very small footprint. (http://openrb.com)

direct open embedded systems is able to produce WLAN devices that can act as small web servers with currently up to 64 GB storage space.

Most of the free and open source companies presented their products in hall 5, which was packed with crowds of people. You can get an idea when you hear the background noise in the video. The interest in free and open source technologies is amazing and ever increasing.

 

Some more specifications of the router devices:

  • Bittorent, FTP, HTTP download clients included. Now you don’t have to leave your computer on to complete your downloads, they can be easily stored on a Compact Flash card (up to 64GB) or on external USB Flash / hard disk

  • Network OS with AJAX user interface

  • Integrated organizer with Calendar, To-do and Notes

  • RSS feed reader

  • LCD screen for displaying news, notes and current activities

  • P2P streaming media server for video and audio

  • Very rich network functionality (QoS, tunnels, routing, firewall, NAT, etc.)

Extendable

  • PCI bus for wireless interfaces, video, Ethernet and other miniPCI devices

  • I2C bus for serial memory, A/D and D/A converters, temperature/voltage monitors

  • RS232/RS485 for keyboard, LCD and other devices for industrial applications

  • USB host with two ports for various serial devices from flash disks to web cameras

  • GPIO for relays, LEDs, etc.

Memory

  • RAM: up to 512 MB

  • Flash: 8 MB on-board, extendable up to 64 GB using CompactFlash

Green and energy saving

  • Fully ROHS compliant

  • Processor power consumption (typical): 0.72 W at 266 MHz

Stable

  • Hardware watchdog timer

  • Industrial temperature grade

  • ESD protected Ethernet and power ports

  • Reliable tantalum capacitors on board except for only one electrolytic cap

Software ported to

  • OpenEmbedded Linux

  • OpenWRT Linux

  • FlashSYS Linux with revolutionary AJAX interface

  • eCOS Real Time operating system

Created for

  • Wireless and wired router solutions

  • Machine2Machine (M2M) applications

  • Industrial applications

  • Home wireless AP and media servers

  • Automation devices

Wireless

  • Chipset Atheros AR5414

  • IEEE Standards 802.11a/b/g (2.4/5 GHz)

  • Security Hardware 64 and 128 bit WEP; Hardware TKIP and AES-CCM encryption; WPA authentication

  • Bandwidth up to 108 Mbps

  • Modulation OFDM, TDD

Technical details

  • PowerPC processor: 266 or 333 MHz clock frequency

  • 1 or 2 ESD protected Ethernet ports

  • miniPCI sockets for 802.11 wireless cards and other expansion

  • 32-512 MB SDRAM, 64 bit wide for high memory bandwidth

  • 8 MB FLASH for system BIOS and programs

  • True IDE CompactFlash (CF) header for custom OS and applications

  • 7 to 36 V DC supply through DC jack or passive power over LAN connector

  • 2 RS232 serials ports (1 DB9 male socket), RS485 interface header

  • JTAG interface header

  • Hardware and software watchdog timers

  • LM75 thermal monitor

  • GPIO header

  • USB 2.0 host

  • I2C bus header (can be used for front panel interface)

  • 2 LEDs and 1 pushbutton switch, freely programmable

  • Board size: 115 mm x 97 mm

  • CE certified