Back on track

July 10th, 2012 Marcus 9 Responses

We replaced the broken MPU-6050 with the replacements we got and Crazyflie is now flying again! Until now we did not really know if the new architecture with digital sensors was working and able to fly. Now we know it can, and the performance of the copter seems really very good!

Replacing QFN components are not that easy if you don’t have access to good tools. Luckily they have a hot air station at work which makes the job a lot easier. We took a photo of the replaced MPU-6050 and it is actually hard to distinguish between the original re-flow soldered one, except maybe for the crocked capacitors. Ohh and what looks as a short on two of the pins are supposed to be there ;-)

 

We think the stability is a bit better than with the IDG500/ISZ500 gyros. Judge for your self ;-)

Posted in Crazyflie, Electronic
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9 Responses to “Back on track”

  1. DJ says:
    2012-07-10 at 15:21

    Great to see you guys flying again. How is the air-time with all your software optimisation?

    I don’t know if you are in need of some kind of an test-team, but I would like to participate in testing your CrazyFlie. I have some flying experience (FP/CP/coaxial) and I am a software tester in my day-job.

    Would love to help you guys. You can see my e-mail right? ;-)

  2. Connor says:
    2012-07-10 at 16:33

    Dont know if you guys have seen this but I think it would be helpful…

    http://www.idsc.ethz.ch/people/staff/mueller-m/IrosJugglingPaper.pdf

    http://www2.engr.arizona.edu/~sprinkjm/research/c2wt/uploads/Main/QuadrotorDynamicsGNC.pdf

    http://autonomous.uwaterloo.ca/waslander/pubs/GNC08QuadTrajSubmit.pdf

    http://biblion.epfl.ch/EPFL/theses/2007/3727/EPFL_TH3727.pdf

  3. Marco says:
    2012-07-10 at 17:23

    http://media.tumblr.com/tumblr_m63d33kH6H1r2rq11.jpg

  4. T50Japan says:
    2012-07-10 at 19:22

    Hahaa, that was a great video! Lets do the next test run in a wind tunnel, LOL. I can’t wait for the next update video. Thanks guys.

  5. TheFrog4u says:
    2012-07-10 at 22:42

    The fly-stability is amazing for a copter of this size.. realy impressive!

  6. Ola Normann says:
    2012-07-12 at 10:21

    Awesome work guys :) Now, whats next?

    • tobias says:
      2012-07-12 at 15:29

      Well, making our very fist flying prototype took about 6 month. Making something that is manufacturable has taken 18 months and still plenty to do, but now we are at least getting closer. There are test specifications, finishing and releasing software, final HW, etc so we will be occupied during the Swedish summer (which is mostly raining anyway :-) )

  7. Craig says:
    2012-07-15 at 22:36

    Sooooo, why can’t I buy one yet? I really want one!!

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