Connection Error

[pnambiar]

Error connecting: ConnectionFailedException occurred at line 371 of /home/priya/ros_workspace/libsegwayrmp/src/impl/rmp_ftd2xx.cc: Error connecting to the SegwayRMP: FTD2XX error while opening the usb port: FT_DEVICE_NOT_OPENED

[dikke]

I have this same error as well when connecting Segway using USB mode.
On the other hand, if I use the serial mode, I got this error.....

Root@Sony$: roslaunch segwayrmp segwayrmp.launch
....
setting /run_id to 8dad0fda-483d-11e5-80fb-d0df9ada3503
process[rosout-1]: started with pid [3824]
started core service [/rosout]
process[segway_rmp_node-2]: started with pid [3841]
[ INFO] [1440186491.945094335]: Accel limits: linear: pos = 0.000000, neg = 0.000000, angular: pos = 0.000000, neg = 0.000000.
[ INFO] [1440186491.946291261]: Velocity limits: linear: 0.000000, angular: 0.000000.
terminate called after throwing an instance of 'segwayrmp::ConfigurationException'
  what():  ConfigurationException occurred at line 245 of `/opt/ros/indigo/share/libsegwayrmp-master/src/segwayrmp.cc`: Error configuring the SegwayRMP: Library is not built with Serial support

I can guarantee that the "libsegwayrmp" package was compiled with "serial" as it says libewayrmp serial supported during its compilation. This might be a problem of CMakeList.

[wjwwood]

@dikke these errors seem to be different.

As for your error, if you're sure you built with Serial support then you might be using a different instance of the headers? The availability of the Serial support is baked in at CMake time if I remember correctly.

I don't have a segway to test with, so the most I can suggest is that you rebuild it and make sure it has Serial support enabled and that it finds the serial library it needs to build in serial support.

[dikke]

Thank you for your reply.
I have further tried with the segwayrmp_gui. This is a binary comes from "libsegwayrmp" package. Please see the result below.

First Photo uses serial connection, no errors.

Second photo uses USB connection, there is error.......

The problem is that, I still can't get the serial version working with "segwayrmp" package. There must be dependency issue during the compilation. The problem, is perhaps, found in here:
https://github.com/segwayrmp/libsegwayrmp/blob/master/cmake/segwayrmp_serial.cmake

[wjwwood]

That is strange. I agree that the only thing that could really be happening is that the segwayrmp package is finding and linking against the wrong libsegwayrmp library.