Discussions

Mission Planner does not connect to pixhawk: heart beat timeout

Posted by Jay Senthilvelan on March 30, 2017 at 5:03pm

Hello,

I am a high school junior and I am attempting to build an autonomous drone for my school project. I have little to no experience with drones, so I am only a beginner.

I am having problems connecting my pixhawk flight controller to Mission Planner on my PC. Whenever I connect, I get the "no heartbeat packet received" received error when mavlink attempts to connect to my pixhawk. 

Also, I had a successful connection to the pixhawk a few days back, and even today I can see the pixhawk detected under COM4 port, however, it refuses to connect. The pixhawk boots up fine and I am able to hear the successful boot up sound. I have tried restarting my computer, unplugging all peripherals, and trying multiple different USB ports/cables, but to no avail.

Any help/suggestions would be greatly appreciated!

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Replies

  • Lee Roper July 30, 2018 at 1:24am

    I had the same issue. REsolved by connecting the Ground unit to laptop using FTDI. Then load settings in mission planner, as you would normally do with the air unit.
    Untick ECC & Op Resend. Save settings & try again.3702440078?profile=original

  • JMLopez December 6, 2017 at 9:33am

    The same problem, Solved by formatting the SD card.

  • Rick Yonika April 14, 2017 at 4:44pm

    the fix for me was to load rover then back to tailsitter,he also fixed every thing else I could think of, amazing skill set, thank you Tridge...... this fixed my pixhawk, the explanation in duel motor tailsitters. 

  • Michael Burmeister April 11, 2017 at 5:47pm

    I'm at a lose than.  It would seem the unit is defective.  Maybe a developer could point to the error sound that the unit is making and determine what might be wrong.

    Mike

  • Jay Senthilvelan April 11, 2017 at 3:02pm

    I can see files on the sd card and I am pretty sure that it is properly inserted. There are two folders, Log and Terrain on the card. Log does not have anything in it. Terrain has some .DAT files in it.

  • Michael Burmeister April 11, 2017 at 2:46pm

    Check that the SD card is properly inserted and if you have a computer make sure that you can see files on it.

  • Jay Senthilvelan April 11, 2017 at 2:22pm

    I think it is the "armed" sound.

  • Michael Burmeister April 11, 2017 at 2:18pm

    That's not good.  Is it one of these sounds?  http://ardupilot.org/copter/docs/common-sounds-pixhawkpx4.html

    Sounds (Pixhawk) — Copter documentation
  • Jay Senthilvelan April 11, 2017 at 1:15pm

    The port and baud rate are set as you said. The center led is yellow solid not flashing. The other lights look are as you said. When it starts up I hear a long beep.

  • Michael Burmeister April 11, 2017 at 12:36pm

    In Mission Planner in the pull down list of com ports it says: COMX PX4 FMU (COMX). baud is 115200.

    On the Pixhawk you have yellow flashing led in the middle and the back 5 LED's has two yellow led's on and on the left one blue led flashing?

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