I am working on ros2 and uXRCE-DSS I have successfully communicated FC and ros2 as via serial telem port MicroXRCEAgent serial --dev /dev/ttyUSB0 -b 115200 shown below
mubashir@mubashir:~$ MicroXRCEAgent serial --dev /dev/ttyUSB0 -b 115200
[1748526929.559184] info | TermiosAgentLinux.cpp | init | running... | fd: 3
[1748526929.559409] info | Root.cpp | set_verbose_level | logger setup | verbose_level: 4
[1748526936.282635] info | Root.cpp | create_client | create | client_key: 0x00000001, session_id: 0x81
[1748526936.282789] info | SessionManager.hpp | establish_session | session established | client_key: 0x00000001, address: 1
[1748526936.314032] info | ProxyClient.cpp | create_participant | participant created | client_key: 0x00000001, participant_id: 0x001(1)
[1748526936.348775] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x800(2), participant_id: 0x001(1)
[1748526936.348895] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x800(4), participant_id: 0x001(1)
[1748526936.350578] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x800(6), subscriber_id: 0x800(4)
[1748526936.388646] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x801(2), participant_id: 0x001(1)
[1748526936.388737] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x801(4), participant_id: 0x001(1)
[1748526936.388935] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x801(6), subscriber_id: 0x801(4)
[1748526936.428829] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x802(2), participant_id: 0x001(1)
[1748526936.428965] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x802(4), participant_id: 0x001(1)
[1748526936.429315] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x802(6), subscriber_id: 0x802(4)
[1748526936.464029] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x803(2), participant_id: 0x001(1)
[1748526936.464184] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x803(4), participant_id: 0x001(1)
[1748526936.464630] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x803(6), subscriber_id: 0x803(4)
[1748526936.504130] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x804(2), participant_id: 0x001(1)
[1748526936.504346] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x804(4), participant_id: 0x001(1)
[1748526936.504629] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x804(6), subscriber_id: 0x804(4)
[1748526936.538733] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x805(2), participant_id: 0x001(1)
[1748526936.538802] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x805(4), participant_id: 0x001(1)
[1748526936.538932] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x805(6), subscriber_id: 0x805(4)
[1748526936.578752] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x806(2), participant_id: 0x001(1)
[1748526936.578836] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x806(4), participant_id: 0x001(1)
[1748526936.578982] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x806(6), subscriber_id: 0x806(4)
[1748526936.618852] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x807(2), participant_id: 0x001(1)
[1748526936.618974] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x807(4), participant_id: 0x001(1)
[1748526936.619206] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x807(6), subscriber_id: 0x807(4)
[1748526936.659897] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x808(2), participant_id: 0x001(1)
[1748526936.660039] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x808(4), participant_id: 0x001(1)
[1748526936.660318] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x808(6), subscriber_id: 0x808(4)
[1748526936.699796] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x809(2), participant_id: 0x001(1)
[1748526936.699889] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x809(4), participant_id: 0x001(1)
[1748526936.700090] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x809(6), subscriber_id: 0x809(4)
[1748526936.734772] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x80A(2), participant_id: 0x001(1)
[1748526936.734864] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x80A(4), participant_id: 0x001(1)
[1748526936.735039] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x80A(6), subscriber_id: 0x80A(4)
[1748526936.783900] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x80B(2), participant_id: 0x001(1)
[1748526936.784017] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x80B(4), participant_id: 0x001(1)
[1748526936.784368] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x80B(6), subscriber_id: 0x80B(4)
[1748526936.818628] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x80C(2), participant_id: 0x001(1)
[1748526936.818709] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x80C(4), participant_id: 0x001(1)
[1748526936.818893] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x80C(6), subscriber_id: 0x80C(4)
[1748526936.853752] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x80D(2), participant_id: 0x001(1)
[1748526936.853820] info | ProxyClient.cpp | create_subscriber | subscriber created | client_key: 0x00000001, subscriber_id: 0x80D(4), participant_id: 0x001(1)
[1748526936.853991] info | ProxyClient.cpp | create_datareader | datareader created | client_key: 0x00000001, datareader_id: 0x80D(6), subscriber_id: 0x80D(4)
[1748526936.888461] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x00000001, topic_id: 0x80E(2), participant_id: 0x001(1)
I am running px4 v1.15.4 and clone and build px4-msgs v1.15 after ros2 topic list I only see in topics out topics are missing
mubashir@mubashir:~$ ros2 topic list
/opt/ros/foxy/bin/ros2:6: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
from pkg_resources import load_entry_point
/fmu/in/actuator_motors
/fmu/in/actuator_servos
/fmu/in/arming_check_reply
/fmu/in/aux_global_position
/fmu/in/config_control_setpoints
/fmu/in/config_overrides_request
/fmu/in/differential_drive_setpoint
/fmu/in/goto_setpoint
/fmu/in/manual_control_input
/fmu/in/message_format_request
/fmu/in/mode_completed
/fmu/in/obstacle_distance
/fmu/in/offboard_control_mode
/fmu/in/onboard_computer_status
/fmu/in/register_ext_component_request
/fmu/in/sensor_optical_flow
/fmu/in/telemetry_status
/fmu/in/trajectory_setpoint
/fmu/in/unregister_ext_component
/fmu/in/vehicle_attitude_setpoint
/fmu/in/vehicle_command
/fmu/in/vehicle_command_mode_executor
/fmu/in/vehicle_mocap_odometry
/fmu/in/vehicle_rates_setpoint
/fmu/in/vehicle_thrust_setpoint
/fmu/in/vehicle_torque_setpoint
/fmu/in/vehicle_trajectory_bezier
/fmu/in/vehicle_trajectory_waypoint
/fmu/in/vehicle_visual_odometry
/parameter_events
/rosout
Development environment
os: ubuntu 20
ros2 foxy