Hi James

While trying to get a home-built autopilot to fly airplanes without ailerons I found your model of Easystar on the oooark. I've been trying to get the autopilot to fly it safely, but it seems my autopilot favors airplanes with ailerons since it has some problems flying that model. I just wanted to check if there's any problems with the model you're aware of, or if you're saitsfied with the way it behaves in the air.

Best regards

/Lars

Hi James,

I want to interface ardupilot with scilab, and control my UAV from there. Could you please tell me what toolboxes you have used to interface with ardupilot. Is this simple? and how long does it take to develop this link? i'm totally new to microcontrollers.

Thanks & Regards,

Mohan

I will be using Ardupilot Mega. Does this mavsim toolbox come along with scilab? or I have to download it separately and install it. My job is to test the control algorithms for controlling the aircraft. Developing the interface is not the main idea. But if it is readily available, I want to use that one. Can I command the servos as well with this toolbox?

Thanks

Mohan

What is the accuracy of ArduRover i.e. your http://www.youtube.com/watch?v=r1iJWIKbAQc video? Are there any test results such as how close the rc car stopped at the indicated stopping waypoint? Within 1m, 2metres etc? This info will be greatly appreciated, thanks. Also in that video is the magnetometer really needed? How much accuracy does it help with?

Hi James,

I checkout out revision 177 of ArduPilotOne which I believe is the Ardurover version from the youtube video but when I try to compile it I get the error:

"MAVLINK_COMM_NB_HIGH" was not declared in this scope

How can I fix this? One of the libraries path may be wrong or not included?

I fixed it, I changed MAVLINK_COMM_NB_HIGH to MAVLINK_COMM_3

however I was not able to test the code since I can't seem to upload any sketches to my board now I get an error: "avrdude: stk500_2_ReceiveMessage(): timeout" :(

Hi James,

I saw on the Roadmap for APO one of the goals was to "Test rover obstacle avoidance."

Does Ardurover have obstacle avoidance? If so, how does it work and what hardware deos it use for detecting obstacles?

Thanks,

Junior.

Hi James,

I was testing your latest Ardurover code, however I get operation timed out when trying to write waypoints. I am connecting via FTDI to the telemport. Have you ever tried sending waypoints via FTDI?

Thanks,

Junior.

It is noted however that the timeout error only occurs with gps disabled. When gps is enabled waypoints can be sent.

Hi James,

I added the issue to the Google Code site. I remember I told you about this issue a while ago, I thought it was fixed. Is it possible to provide me with a version of the ardurover code in which you can confirm waypoint sending works? I would really like to test it, but I'm still getting timeout errors.

Thanks,

Junior.

I also noticed, when GPS is on and you connect just the APM board to the computer alone with nothing else attached (servos etc) and the board is powered by the usb that you cant seem to get a GPS lock? Is this a power issue? Is the board not receiving enough power?

Ok thanks very much!! I will try it. Do you think the waypoint timeout issue is due to the board not receiving enough power?

Hi, can you help me which revision of the code was demo-ed in the youtube video for ardurover? The video was uploaded on the 12th of April but in the APO wiki it says "DONE 4/4/2011 : Video fo Ground Vehicle (James)"

Thank you.

Junior

yes I made sure to change the svn externals so it would compile properly. I saw a few revisions on the 4th of April ill choose the last revision on the 4th and try it. I would love to stick to the latest code but as I said before (issue #2 posted on google code site) waypoints does not send to the board i.e. communication does not work so its unusable for me. So i'm using the old revision so I can see if I set up my rover correctly. Thanks for the quick reply and the update of your testing!!

Hi James,

How's the debugging coming along? I have a quick question. My MTK gps unit doesnt work but I have an EM406 ( http://www.sparkfun.com/products/465 ), do I have to do any modifications to your code for this gps to work? Also i tried rev120 today waypoints were sent but car didnt go lol ill try rev160 tomoro :D it looks more updated

Junior