When I complete to install the ros_arduino_bridge, I can not push command through /cmd_vel topic?

asked 2017-05-10 05:16:35 -0500

Dragon gravatar image

I complete install the ros arduino bridge, and can send command "m 20 20" through serial port to controll the car. But I run "roslaunch ros_arduino_python arduino.launch" and I can see the topic like below: /arduino/sensor/arduino_led /arduino/sensor_state /cmd_vel /odom /rosout /rosout_agg /tf But I can not controll the car through command rostopic pub -1 /cmd_vel geometry_msgs/Twist '{ angular: {z: 0.5} }' Why?? Can anyone answer?

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Please post the contents of your arduino_params.yaml file.

Pi Robot gravatar image Pi Robot  ( 2017-05-11 08:19:02 -0500 )edit