The NASA Space Application Challenge 2015: one hackathon weekend, 133 cities around the world, 949 projects, and our BigWhoop project is among the final 15 for the global People’s Choice Award. Read on to learn what happened during the event at the Stuttgart hackerspace shackspace and then go on and vote for BigWhoop and make it win the award!

NASA’s Space Apps Challenge is an international mass collaboration/hackathon organized on a global scale and held in all major cities worldwide, with a focus on finding solutions to challenges faced in space exploration and also to life on Earth.

The Winner of the Stuttgart chapter of Global NASA Space Apps Challenge is BigWhoop. BigWhoop addresses the “Open Source Air Traffic Tracking” Challenge. This challenge required the building of a tool that allowed users to select a particular flight and see its out-the-window or other views of the aircraft, and airspace. We decided to extend the scope of the project a bit. Our app was designed as a global sensor grid to measure the whole radio spectrum -thus  making air traffic monitoring a subset of the solution. This free and community driven approach based on small and low-cost software defined radio devices earned the local team a global nomination for NASA’s People’s Choice Awards and will be competing to be among the final 15 out of 949 projects for global People’s Choice awards. And now you can vote for the Stuttgart Team as of 27 April.

Just visit this page and vote for our #BigWhoop app (once a day).


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175x170_freifunknetAm Donnerstag den 30. April 2015 trifft sich Freifunk Stuttgart e.V. im shackspace zum Flash in den Mai.
Los geht es um 18 Uhr.

Wer ein kompatibles Gerät mitbringt, bekommt vor Ort Hilfe beim Aufspielen der Freifunk Firmware. Bei schönem Wetter wird der Grill angeworfen.

Dieser Event richtet sich an alle Freifunkinteressierte und Leute die es werden wollen.

Zum Event:
Eintritt frei! Verbrauchsmaterial muss bezahlt werden. (Spenden an shack e.V. sind gerne gesehen)
Bitte unverbindlich anmelden (
Datum: Donnerstag, 30. April 2015, 18 Uhr
Anfahrt: U4/U9 Haltestelle “Im Degen”, Ulmer Straße 255, Stuttgart Wangen (gegenüber Kulturhaus Arena)

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Aringsm Sonntag, 26. April 2015 von 11 Uhr bis 20 Uhr findet im shackpace ein Chainmail Workshop statt. Heißt soviel wie: Wir basteln $Dinge aus Kettenhemdringen. Was gebastelt wird, können die Teilnehmer selbst entscheiden, primär werden es wohl Beutel sein (für Inspiration hier und hier).

An Material stehen zur Verfügung (siehe Bild):

  • Aluminiumringe (oben im Bild)
  • Gefärbte Aluminiumringe (Bildmitte; es sind weitere Farben verfügbar)
  • Gummiringe (unten im Bild; für Elastizität)

Die Ringe haben einen Durchmesser von etwa 0,8cm.

Durchgeführt wird der Workshop von flyx.

Kosten: Teilnahme ist kostenlos (Spenden an shack e.V. sind gerne gesehen);
allerdings müsst ihr die Ringe, die ihr verbaut, bezahlen. Der Preis beträgt 1,25€ pro 10 Gramm. 300 Ringe wiegen etwa 40 Gramm, für einen großen Beutel benötigt ihr etwa 1000 – 1500 Ringe.

Zum Event:
Eintritt frei! Verbrauchsmaterial muss bezahlt werden. (Spenden an shack e.V. sind gerne gesehen)
Datum: Sonntag, 26. April 2015, 11 bis 20 Uhr
Anfahrt: U4/U9 Haltestelle “Im Degen”, Ulmer Straße 255, Stuttgart Wangen (gegenüber Kulturhaus Arena)

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600_395679172Am Dienstag den 7. April 2015 trifft sich wieder as Hardware Startup Meetup im shackspace.

Wir freuen uns auf euch!

UPDATE: Daniel und Benjamin (die Organisatoren) sind leider kurzfristig verhindert. Es gibt keinen Vortrag. Wer trotzdem kommen will, kann dies gerne tun.

1900 – Networking
1930 – Vorstellrunde
– 15min Vortrag + 15min Q&A
danach Networking

Zum Event:
Eintritt frei! (Spenden an shack e.V. sind gerne gesehen) Jeder ist willkommen!
Bitte kostenlos vorher anmelden (
Datum: Dienstag, 7. April 2015 ab 19 Uhr
Anfahrt: U4/U9 Haltestelle “Im Degen”, Ulmer Straße 255, Stuttgart Wangen (gegenüber Kulturhaus Arena)

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wdmAt shackspace we always aim for higher goals, therefore team krebs took action and started with the utlimate project world domination.
For a long time shackspace has had the wooden ‚world domination map‘ on the lounge wall, which gave the whole room a unique flair.
Finally, this weekend some minor but annoying bugs on the map got fixed, like the missing Black and Caspian Sea in Eurasia.
The goal was to place as many hackerspaces (among those who implement the Hackerspace API) as possible on the map and show their open status using RGB LEDs.
Here’s a short timeline of this hacking weekend:
  • Sadly, all Mapping projects for the spaceAPI seemed dead at this point, so @momorientes and @makefoo teamed up and built to get started. In the process we found some hackerspaces that had switched lat and lon on their API implementations and notified them, in the near future there should be less hackerspaces in the Somalia region 😉
  • ciko, @lotho and @momorientes began to make plans to fix minor bugs in the map and add the Caspian and the Black Sea
  • @phrewfuf and @momorientes started by adding the Caspian and the Black Sea to the exisiting wooden map initially built by @n3rdybirdy.
  • @lotho and @momorientes gave the map a finishing paint.


  •  Jo merged a piece of wood to complete the Caspian Sea
  •  Jo and @codingrixx began to plan the path our bus would have to take around Eurasia
  • @phrewfuf started to solder the WS2812 LEDs and was later replaced by @pcopfer and @codingrixx.
  • @codingrixx and @pcopfer did an awesome job and got half way through Europe
  • Meanwhile @flachdachjogger had started to rip out the existing background illumination and began to replace it with a high density LED stripe
  • @codingrixx single-handedly finished the soldering on Germany (so many hackerspaces!)
  • ttb and @codingrixx continued till 8am to finish Eurasia by soldering LEDs for the Netherlands, Belgium, France and Spain
  • @gryhsl started to assemble a sorted list of all APIs on the maps part.
  •  @momorientes and @flachdachjogger added 3 more hackerspaces to the map.
  • @flachdachjogger, @momorientes and ttb added wood and hot glue to improve the overall sturdiness of the map.
  •  @flachdachjogger added a power supply and improved the maps supply voltage.
  • @phrewfuf added an arduino for doing a simple fade as long as no ‚brain‘ is added.


  •  @makefoo quickly hacked together a control script for the ws2811 on the esp8266 on the nodemcu firmware. The firmware opens a coap server and exposes the control of the LEDs from an external instance. A VM polls the hackerspace APIs and sets the LEDs to red/green according to their open status. Together with Samu the ESP8266 got deployed in place of the arduino used for testing.
After this long weekend the team had completed continental Eurasia (lacking some small islands such as the UK) and added about 80 LEDs (>450 solder joints).
Sadly smaller hackerspaces didn’t fit on the wooden map in crowded places (the Netherlands on the map is as big as four LEDs), but their status is always correctly displayed on
If your hackerspace isn’t on the map, make sure to implement the current version of the hackerspace API, especially when your hackerspace is on the African continent or the Middle East
Work will continue during the next weekends and islands and other continents will be added. The map will also receive a new paint coat and the background illumination will be finalized (we didn’t have enough LED Stripes at hand).
For more pictures of the build check the shackspace Log!


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