Crazyflie demo fixing

[tdinesh]

No description provided.

[ljarin]

@tdinesh does that last change seem correct to you? not really sure what "QuadrotorSafety" was?

[tdinesh]

Yes thats correct. QuadrotorSafety was the gui name.
https://github.com/KumarRobotics/multi_mav_manager/blob/master/rqt_multi_mav_gui/resource/MultiMavGUI.ui

[ljarin]

Everything mostly LGTM and I tried it in sim using demo_sim.sh, but it has not been tested in real life, so I am not sure about e.g. the radio addresses or the shell script (which I think may have bugs).

[spencerfolk]

I think my student can check on Tuesday if it works on hardware.

[ljarin]

@spencerfolk please have him try if possible https://github.com/KumarRobotics/multi_mav_manager/blob/master/kr_multi_mav_manager/scripts/crazyflie/multi_crazyflie_demo.sh

[DragonXeno]

@tdinesh @ljarin Dinesh & Laura, it seems like we are running into version issues with PyQt. We are currently running version 5.10.1. If I run 5.12 like it states, I get an error saying the following: "ValueError: PyCapsule_GetPointer called with incorrect name".

When running 5.10.1, we get this message in blue, followed by a timeout error.

Could not import "pyqt" bindings of qt_gui_cpp library - so C++ plugins will not be available:
Traceback (most recent call last):
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/cpp_binding_helper.py", line 43, in <module>
    from . import libqt_gui_cpp_sip
ImportError: /home/xeno/.local/lib/python3.8/site-packages/PyQt5/Qt/lib/libQt5Core.so.5: version `Qt_5.12' not found (required by /opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/libqt_gui_cpp_sip.so)

[DragonXeno]

Update: running the code "pip3 uninstall PyQt5-sip PyQt5" makes the blue code just disappear for some reason. We are still just getting a timeout error.

[DragonXeno]

Everything runs. No error messages, but active robots is empty and motors are not turning on or off. We verified we have the correct address, we can fly the drone with a phone, its communicating with the Vicon system fine, the radio works with cfclient.

Any ideas on why the gui buttons are not working? No matter what button we press, it says true, but nothing happens.

[DragonXeno]

Here is the rqt_graph. Looks like /multi_mav_gui is not connected to anything...

[ljarin]

Were you able to take off with just the single crazyflie and rqt_mav_manager?

[ljarin]

resolved offline, was unrelated to this PR