user29646: I want to determine my arduino's position. However, I want to use the European Galileo system instead of the US-American GPS. 
Therefore, I searched for any possibilities receiving the Galileo signals. I figured out, that u-blox has some receivers: NEO 8 or the LEA 6 (firmware update required). However I did not find any arduino breakout board (, etc.) that uses these u-blox sensors or other Galileo-compatible hardware.
Does anyone know, how I could use the Galileo Position System?

user30198: You need the hardware and a library. Most GPS modules use a serial communication, and I think that also the Galileo compatible boards use serial communication. That makes them compatible with most microcontrollers and also with Arduino boards.
I could find a few shields that can be attached to an Arduino board.
This one is in development at the moment: Kickstarter shield with Galileo
This one is compatible via the serial pins: GA-001 Multi GNSS Ublox
There is a "NEO-M8N" shield and maybe one or two others.
All those boards are very new, and I don't know if they come with a library for an Arduino. Perhaps you have to wait a few months and then it should be a lot easier to buy a complete functioning module with a library.
Before buying a module, confirm that there is a library for Arduino or good documentation to write your own library.

29646: <p>I want to determine my arduino's position. However, I want to use the <em>European</em> <strong>Galileo</strong> system instead of the <em>US-American GPS</em>. </p>

<p>Therefore, I searched for any possibilities receiving the Galileo signals. I figured out, that u-blox has some receivers: NEO 8 or the LEA 6 (firmware update required). However I did not find any arduino breakout board (, etc.) that uses these u-blox sensors or other Galileo-compatible hardware.</p>

<p>Does anyone know, how I could use the Galileo Position System?</p>
 30198: <p>You need the hardware and a library. Most GPS modules use a serial communication, and I think that also the Galileo compatible boards use serial communication. That makes them compatible with most microcontrollers and also with Arduino boards.</p>

<p>I could find a few shields that can be attached to an Arduino board.<br>
This one is in development at the moment: <a href="https://www.kickstarter.com/projects/sodaq/the-first-nb-iot-shield-for-arduino-supported-by-t" rel="nofollow noreferrer">Kickstarter shield with Galileo</a><br>
This one is compatible via the serial pins: <a href="https://www.tindie.com/products/jrobi772/ga-001-multi-gnss-ublox-development-module/" rel="nofollow noreferrer">GA-001 Multi GNSS Ublox</a><br>
There is a "<a href="http://www.ebay.com/itm/NEO-M8N-GPS-Shield-for-Arduino-Indoor-Positioning-GPS-Galileo-GLONASS-BeiDou-/272086464137" rel="nofollow noreferrer">NEO-M8N</a>" shield and maybe one or two others.</p>

<p>All those boards are very new, and I don't know if they come with a library for an Arduino. Perhaps you have to wait a few months and then it should be a lot easier to buy a complete functioning module with a library.</p>

<p>Before buying a module, confirm that there is a library for Arduino or good documentation to write your own library.</p>
