Hi Hubert,
I fixed the first error:
[ERROR] [1558684707.038321]: Creation of publisher failed: 'module' object has no attribute 'Feedback'
By making a dummy ros package, ros node and made the Feedback.msg on the second CORE2-ROS as well. That worked.
But I still can’t subscribe to custom messages.
Edit after I did what Hubert said:
So I just did exactly as was descibed by Lukasz and I think that worked, the output is:
[INFO] [1558696275.344900]: ROS Serial Python Node
[INFO] [1558696275.382970]: Connecting to /dev/ttyCORE2 at 500000 baud
[ERROR] [1558696292.506964]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino
[INFO] [1558696292.739804]: Note: subscribe buffer size is 512 bytes
[INFO] [1558696292.741576]: Setup subscriber on /vehicle_control [custom_pkg/VehicleControl]
So I do not know why it does not work with the other custom messages.