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Old Aug 16, 2014, 07:14 AM
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United Kingdom, England, Southport
Joined Dec 2010
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Help!
GPS Help

Hi.
Just got my GPS, but of course it comes with no instructions or anything for us beginners in this.
Can anyone help me out on how I go about setting this up for my quad?

I have tried following this guide, but in MultiWii GUI, when I try to set GPS Hold on Aux1, The switch doesn't activte it. I can see that the switch is active though, just nothing happening for that.

FC: http://hobbyking.com/hobbyking/store...arehouse_.html
GPS: http://hobbyking.com/hobbyking/store...acy_V1_01.html

Thanks
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Old Aug 16, 2014, 10:52 AM
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Firstly, does your GPS have a good lock on satellites?
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Old Aug 16, 2014, 11:27 AM
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United Kingdom, England, Southport
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I'm not sure how to check for satellites tbh. I'm new to all this quad stuff.

At the moment, though, I've kind of lost MW on my FC. I tried to put Megapirate on it instead, but I couldn't get that to work and now I have neither :/

Edit:
Ok, After hours of torture, I now have MultiWii 2.3 running again, But still without GPS working.
When in MultiWii Conf, and you see "GPS Home" and "GPS Hold", are they meant to turn green if you assign them to an Aux switch? I'd assume they are, but being new to all this, I'm not 100% sure.
If they are meant to turn green, Mine certainly does not work then.
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Last edited by mark36ph; Aug 16, 2014 at 03:05 PM.
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Old Aug 16, 2014, 03:47 PM
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Anyone any clues for me on this?
Thanks
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Old Aug 16, 2014, 04:42 PM
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They won't turn green unless you are armed and have a proper GPS lock.
Multiwiiconf will flash the compass on the right side of the main screen if it is searching for satellites. The GPS will only work if you set it up correctly in the config.h of multiwii.
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Last edited by Arakon; Aug 16, 2014 at 05:02 PM.
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Old Aug 17, 2014, 04:16 AM
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At the moment, the blue light that was flashing on the GPS won't even flash again now for some reason. Any ideas why?
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Old Aug 17, 2014, 05:07 AM
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United Kingdom, England, Southport
Joined Dec 2010
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When trying to update the firmware, I get the display in the image
Not sure if this is right or not?
Also, This image no fix for gps, Yesterday it was showing 3D. What have I messed up?
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Old Aug 18, 2014, 02:51 PM
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Could someone have a look at this config.h file for my multiwii 2.3 and tell me if my GPS settings look right to connect to my FC.

When outside, and my FC with GPS is connected to the laptop, The GPS starts flashing its blue LED for a fix, but in MultiWii conf, the GPS does not appear to be picking anything up.

I am able to connect the GPS only to the laptop, and in u-center, it appears to all be working, but when connected via the FC, it does not work in there either.

Therefore, I am assuming it is something to do with the MultiWii config.h file.

Any help appreciated.

Thanks.

http://pastebin.com/6pVnkE8Y
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Old Aug 18, 2014, 11:05 PM
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Why do you have I2C_GPS defined? That FC hooks up directly to the GPS via a serial port.
Uncomment that one. Also, take a photo of how you wired it up.
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Old Aug 19, 2014, 12:50 AM
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I will try that code tonight when i get home.
As for the wiring, i will sort a pic out for that later too, but i have the 2 power wires going to the i2c power, and the other 2 into another one (cant remember its name). I saw a diagram that said to do that. Its wired to tx -rx2, rx-tx2.
i will post pic later though.
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Old Aug 19, 2014, 09:50 AM
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Ok, I commented out the I2C_GPS, and flashed that to my board, and now in MultiWiiConf, the GPS flashes up!

However, GPS HOLD will not enable for me when I try to switch it on via my transmitter. The Aux1 bar notices that I have told it to do something, but it doesn't seem to want to action it. It will work on other things like ACC, Baro, Mag ect though.

I have also uploaded a few pics to show my wiring of the GPS.
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Old Aug 19, 2014, 12:50 PM
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It won't turn on unless you are armed and possibly in flight.
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Old Aug 19, 2014, 12:56 PM
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Joined Dec 2010
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I finally got it to turn on
Will just have to wait for a calm day to test it properly though, getting kinda blown everywhere in this wind :/
I'm not good at patience!
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