When I complete to install the ros_arduino_bridge, I can not push command through /cmd_vel topic?
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?
Please post the contents of your arduino_params.yaml file.