f5soh

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Re: Gps for Revolution
« Reply #15 on: August 11, 2016, 05:48:02 pm »
Found three models of gps. What is a good choice?
Thanks

All three are crap. No I2c wires, sometimes no mag chip inside and after added the i2c wires most of them are defective.

Why not just follow advice we give you and buy a Naza Gps, original or clone ?

startrek66

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Re: Gps for Revolution
« Reply #16 on: August 11, 2016, 09:42:08 pm »

f5soh

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Re: Gps for Revolution
« Reply #17 on: August 11, 2016, 09:45:26 pm »
yes, or similar.
I posted the same link in my first post here.

startrek66

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Re: Gps for Revolution
« Reply #18 on: August 11, 2016, 09:48:03 pm »
Ok very well.  I found only this with ref tu compatibility dji. Thanks

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Wagsy

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Re: Gps for Revolution
« Reply #19 on: August 12, 2016, 12:07:36 am »
Yes just simply get the NAZA one.
Put the NAZA GPS up high out of the way, make sure that once you have a good cal, that it does not turn or move from that position or else your mag will be out again.
Mine is on a little foldaway stand, works really well, boots up fast and always arms, I'm impressed.

Re: Gps for Revolution
« Reply #20 on: August 13, 2016, 06:45:39 pm »
I just ordered one of these apparently authentic DJI GPS for $43 shipped.  It looks exactly like my other authentic DJI, including all markings, screw placement, screw head type, etc.  It seems to be the real thing that the seller has sold for $80 in the past (according to the item sales history).

I will let you know if it is and if it passes my tests as well as my other authentic DJI GPS.

http://www.ebay.com/itm/DJI-GPS-Compass-Module-for-DJI-NAZA-M-Lite-Flight-Control-System-/251862698572
How you test the gps?

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I wrote the DJI GPS part of the firmware and before that I wrote test programs that dump out all data and report all errors.

The easiest way you can test is to configure a flight controller to use it, plug these things into a permanent power supply (AC to DC maybe) and let it run without stopping for several days.  If GPS and mag are still working after several days, they have passed the test.  If not, you should find out how long it runs before breakdown (my cheap GPS breaks down about every 24 hours or so) and decide if it is worth the risk.  I have Attitude mode on my flight mode switch so I can recover if GPS stops working.

startrek66

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Re: Gps for Revolution
« Reply #21 on: August 14, 2016, 10:45:51 am »
I just ordered one of these apparently authentic DJI GPS for $43 shipped.  It looks exactly like my other authentic DJI, including all markings, screw placement, screw head type, etc.  It seems to be the real thing that the seller has sold for $80 in the past (according to the item sales history).

I will let you know if it is and if it passes my tests as well as my other authentic DJI GPS.

http://www.ebay.com/itm/DJI-GPS-Compass-Module-for-DJI-NAZA-M-Lite-Flight-Control-System-/251862698572
How you test the gps?

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I wrote the DJI GPS part of the firmware and before that I wrote test programs that dump out all data and report all errors.

The easiest way you can test is to configure a flight controller to use it, plug these things into a permanent power supply (AC to DC maybe) and let it run without stopping for several days.  If GPS and mag are still working after several days, they have passed the test.  If not, you should find out how long it runs before breakdown (my cheap GPS breaks down about every 24 hours or so) and decide if it is worth the risk.  I have Attitude mode on my flight mode switch so I can recover if GPS stops working.
You supply tension from usb connection?


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f5soh

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Re: Gps for Revolution
« Reply #22 on: August 14, 2016, 03:18:06 pm »
GPS need external +5V to be powered.

Usb only power board, not external devices connected to Receiver/Main/Flexi ports

startrek66

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Re: Gps for Revolution
« Reply #23 on: August 17, 2016, 12:07:47 pm »
GPS need external +5V to be powered.

Usb only power board, not external devices connected to Receiver/Main/Flexi ports
Thank you for reply.
I followed your advice and ordered a naza gps clone but also a neo - 7n GPS ( really low price )

http://www.ebay.it/itm/252497567144

I change the connector with two jst-sh 4 pin.

To configure the GPS can use the 15.9 version of the gcs or I have to change version ?

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f5soh

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Re: Gps for Revolution
« Reply #24 on: August 17, 2016, 01:16:22 pm »
I think you can found the answer in my first post in this thread:

Quote
Naza GPS is currently supported using the Next branch, 15.09 release only support external mag from original OP GPSv9.

startrek66

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Re: Gps for Revolution
« Reply #25 on: August 17, 2016, 02:31:32 pm »
I think you can found the answer in my first post in this thread:

Quote
Naza GPS is currently supported using the Next branch, 15.09 release only support external mag from original OP GPSv9.
Thanks for the reply . I'm not expert in software programming so I think I'll wait a new final version of gcs .


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f5soh

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Re: Gps for Revolution
« Reply #26 on: August 17, 2016, 02:42:59 pm »

startrek66

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Re: Gps for Revolution
« Reply #27 on: August 17, 2016, 02:50:23 pm »
https://forum.librepilot.org/index.php?topic=1910.0
In this community you are all very cooperative . Thanks again.

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Re: Gps for Revolution
« Reply #28 on: August 23, 2016, 09:36:44 pm »
$43 (shipped) DJI/Naza Lite GPS

http://www.ebay.com/itm/251862698572

I received mine today.  It's an authentic DJI Naza Lite.  I haven't tested it yet.

You need "next" or the upcoming release to use it, and you must solder a different connector on it.

startrek66

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Re: Gps for Revolution
« Reply #29 on: August 24, 2016, 08:41:07 pm »
$43 (shipped) DJI/Naza Lite GPS

http://www.ebay.com/itm/251862698572

I received mine today.  It's an authentic DJI Naza Lite.  I haven't tested it yet.

You need "next" or the upcoming release to use it, and you must solder a different connector on it.
Great! Thanks

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