ardrone.getAltitude() not reading

[trinhdh]

Thanks for building great library

I got an issue about reading altitude value.

double altitude = ardrone.getAltitude();
printf("ardrone.altitude = %3.2f [m]\n", altitude);

the result after doing this code is : 0.0 only. Even i move the Ardrone around, but nothing change.

Please help me out Thanks

[puku0x]

Hi,

Thank you for your report.

Did the altitude value remain 0.0 even after your AR.Drone took off ?

What about changing the code in "navdata.cpp"

sockCommand.sendf("AT*CONFIG=%d,\"general:navdata_demo\",\"FALSE\"\r", ++seq);

to this ?

sockCommand.sendf("AT*CONFIG=%d,\"general:navdata_demo\",\"TRUE\"\r", ++seq);

I heard some platform caused a memory leak with "general:navdata_demo=FALSE".

Regards, puku0x

[trinhdh]

Hi. I already changed but altitude value still remain 0.0.when ARDrone took off and change the code as you said. Please take a look the photo:

[puku0x]

Hi.

Did you send the take-off command by using ARDrone::takeoff() ?

I found Vx, Vy and Vz were 0.0 too in the photo. This means your AR.Drone was not flying.

These values, including altitude, change only during the AR.Drone is flying.

Regards, puku0x

[trinhdh]

Hi. You are right. I need to takeoff the Ardrone to get altitude. I though i can lift the ARDrone up by my hand to read those value

Solved the problem

Thanks much for your help

[puku0x]

You're welcome. Good luck !