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Before Posting an Issue

Hi All,

Before posting an issue or a problem in the ArduBoat Discussion Forum, please check the wiki table of contents, review the firmware release notes in the subforum, and search that subforum for existing answers to your question. Help avoid duplicate threads by finding other members with the same issue and their solution.

When formulating your post, use a descriptive title such as "rover will not navigate to waypoints in the Auto mode" (not "HELP!" or "Problem").

Please include the following information to help diagnose your query:

  • Describe the problem you are having. What is the expected verses the observed behavior?
  • Provide hardware information such as the brand and version of your autopilot, GPS, radio, and compass, as well as any other pertinent details about your rover setup.
  • What version of the APM: ArdurRover2 firmware version are you running?
  • For navigation issues, provide your tlog and/or dataflash log. Click here for instructions on retrieving a dataflash log.

TCIII

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Comments

  • David Boulanger December 14, 2015 at 11:48am

    Give it 2 or 3 days in the rice.  If it was salt water your done now.  Fresh water you have a chance. 

    Regards,

    David R. Boulanger

  • Richard Sterling December 14, 2015 at 11:26am

    David, good call, underway will keep you posted.

    Regards,

    RS

  • David Boulanger December 14, 2015 at 8:55am

    Richard;

    Last ditch effort would be to stick it in a sealed container of rice to remove the moisture.  Strange that it worked last night and not now.  Maybe nothing is fried but just some moisture causing electrical issues on the circuit board.

    Regards,

    David R. Boulanger

  • Sonia Jardin December 14, 2015 at 7:44am

    My favourite group of course !

  • Admin
    Thomas J Coyle III December 14, 2015 at 7:37am

    @Richard,

    Presently I have the older 3DR UBlox LEA-6 GPS/Compasses modules.

    However, I do have one newer 3DR GPS/Compass module that uses the NEO-7M.

    I have had a UBlox M8Q for about a year and when programmed with the 3DR GPS configuration file does not do any better than the older UBlox LEA-6 in performance.

    Regards,

    Tom C AVD

  • Richard Sterling December 14, 2015 at 7:20am

    @TCIII, thanks, I agree. I think it was moisture and not impact that caused the failure. Whether the moisture entered due to the impact and then caused the failure I'm not sure. But the results are the same . . . it don't work no more.

    What are you using for a GPS+Compass?

    Regards,

    RS 

  • Admin
    Thomas J Coyle III December 14, 2015 at 7:03am

    @Richard,

    The No Fix indicates that the navigation controller is talking to the GPS.

    I suspect that there is a compromised component in the antenna circuit keeping the GPS chip from receiving satellite signals.

    Regards,

    TCIII

  • Richard Sterling December 14, 2015 at 5:51am

    OK, now I'm in the process of purchasing a new GPS with compass for my APM 2.6.

    Can someone please help me with the differnces between the following:

    1. UBlox LEA-6H GPS with Compass: $100 ish. 5hz update rate.
    2. UBlox NEO-7M GPS with Compass:$44 ish. 10hz update rate.
    3. UBlox M8N-6H GPS with Compass: $60 ish. 10Ghz update rate.

    I prefer # 2 & 3 over #1 as 2 & 3 come in cases, as does 1, but 2 & 3 have the cable enclosed at the GPS end and plugs only at the AMP end.

    If it was moisture that caused the failure of my last LEA-6H then 1 & 2 offer an added layer of protection?

    Also prefer the price of 2 & 3 over 1.

    Any thoughts or experiences with any of the above?

    Regards,

    RS

  • Richard Sterling December 14, 2015 at 5:27am

    @TCIII,

    Sorry I missed you post. 

    Well I got up this morning and I can't get a fix.

    HUD:

    3702143691?profile=original

    In the past I have been able to get a GPS fix from inside my workshop (including last night), but now I have the UBlox GPS outside unobstructed and no fix.

    I did notice some evidence of humidity on the tin shielding over the main chip.

    I think I may have killed it!

    Thanks again TCIII,

    RS 

    https://storage.ning.com/topology/rest/1.0/file/get/3702143667?profile=original
  • Richard Sterling December 13, 2015 at 12:35pm

    Cheers David, Opened it up and checked the battery. Not sure what I did but its up and running again.

    I'll post my full set-up as soon as I get it all working for those who are looking for a economical entry level to Arduboat.

    Thanks again,

    RS

This reply was deleted.

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