[solved] Frustrated about the GPS

Lynxmotion UAVs / Drones
1

Hi guys,
at first I want to express all my satisfaction for the quadrino nano board and the MultiWii software.
It is a really good product and I really slowly appreciate how it works and how many configuration it has.

I think, I need a little bit help to get started with the GPS unit because, after 3-4 days of trying and reading in internet I m not be able to get it working.

I set up the board as in the previous post.

Here a screen shot from my pc:

http://s17.postimg.org/8r9fuillb/quadrinoa.jpg

As you can see in myconfig.h file, I m pretty sure I set everything correctly and I double checked the autogenerated config parameter with the real HW and sensor of the board:
The GPS is defined als Venus, the Baudrate is right… it seems everything fine to me.

I uploaded this skecht many times, but after connecting to the board I never get one GPS satellite.
As you can see, I get the following:

http://s29.postimg.org/3q7dhhe0n/quadrinof.jpg

The small green light (PKT) is most of the time off (red). Every minute lights up for 10-14 seconds and then red again… I never got a number of satellite bigger than 0.

Ah! I live in a apartment, last floor (the highest)…so I m not somewhere in a Bunker…

Do you have guys similar problems?

I would really appreciate your help…

Thank you very much

Bye bye

2

Ok,
according to the suggestion from DialFonzo I tried the GPS and the board, with the same settings, outside far away from buildings or houses.

And it works!!!
The blue LED is now blinking once per second. (since I have no laptop with windows I cannot see the GPS information through the MultiWii GUI)

So many thanks for your help and patience.

Regards

3

No problems… :wink:
Some people living in a house sometimes get satellites inside but most can’t. If the roof contain Metal than they will block the signals.

4

Common with some GPS’s, I had a Venus on a breakout, and it acted just like this one.

My Solution: Stick the antenna in a window, and walk away, it may take 20 minutes to an hour to update ephemeris data (?? minutes) and almanac data (12.5 minutes in a perfect world)

so you may actually get several satellites connected - but not an actual lock - maybe why it occasionally blinks (almanac may be inaccurate / incomplete) Once this long-gap update has been made, you should not have the same delay in your next boot / lock

if so, it maybe a configuration issue on the gps.

.