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

  • APM:Copter V3.4.6 Quad

  • Well that would indicate the board is working.  What version of ArduCopter did you load?

    Mike

  • Yes I have APM Copter loaded on the unit. MP can detect the firmware as well.

  • So, can you load firmware on the unit?  What have you loaded so far?  Without firmware running on the unit there will be no Mavlink heartbeats being sent and your computer will have nothing to talk too.

    If you are getting good sounds when it starts up then the firmware must be not installed correctly.

  • Yes, I have the driver installed. I recently even talked with 3dr's technical support with no avail. I have tried different USB ports, different computer, uninstalling/reinstalling the Mission Planner, connecting without GPS/all peripherals, and checking if the sd card was inserted properly.

    I think I am going to purchase a new pixhawk and return the one I have now as it seems like there may be a hardware defect or something.

  • Hi

    I assume you have the Pixhawk driver installed?

  • I read this article and connected my multimeter to my I2C port and received a voltage of 4.82 V. This is larger than what they said was normal in the article (+-3.3V). So the voltage regulator could be fried, or maybe this article does not apply to my case because it is based off of the APM and not the pixhawk.

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