Ros python publisher

#!/usr/bin/env python
# license removed for brevity
import rospy
from std_msgs.msg import String

def talker():
    pub = rospy.Publisher('chatter', String, queue_size=10)
    rospy.init_node('talker', anonymous=True)
    rate = rospy.Rate(10) # 10hz
    while not rospy.is_shutdown():
        hello_str = "hello world %s" % rospy.get_time()
        rospy.loginfo(hello_str)
        pub.publish(hello_str)
        rate.sleep()

if __name__ == '__main__':
    try:
        talker()
    except rospy.ROSInterruptException:
        pass

Source: wiki.ros.org

Ros python subscriber

#!/usr/bin/env python
import rospy
from std_msgs.msg import String

def callback(data):
    rospy.loginfo(rospy.get_caller_id() + "I heard %s", data.data)
    
def listener():

    rospy.init_node('listener', anonymous=True)

    rospy.Subscriber("chatter", String, callback)

    rospy.spin()

if __name__ == '__main__':
    listener()

Source: wiki.ros.org

Publisher python ros

   1 #!/usr/bin/env python
   2 # license removed for brevity
   3 import rospy
   4 from std_msgs.msg import String
   5 
   6 def talker():
   7     pub = rospy.Publisher('chatter', String, queue_size=10)
   8     rospy.init_node('talker', anonymous=True)
   9     rate = rospy.Rate(10) # 10hz
  10     while not rospy.is_shutdown():
  11         hello_str = "hello world %s" % rospy.get_time()
  12         rospy.loginfo(hello_str)
  13         pub.publish(hello_str)
  14         rate.sleep()
  15 
  16 if __name__ == '__main__':
  17     try:
  18         talker()
  19     except rospy.ROSInterruptException:
  20         pass

Source: wiki.ros.org

Similar codes

3 votes357 views2 answers
What is indentation in python
Python
0 vote332 views1 answer
Numpy.ndarray' object has no attribute 'diff'
Python
0 vote333 views1 answer
How to get height of 2d array in python
Python
1 vote347 views1 answer
Django admin action
Python
4 votes328 views1 answer
Round python with list
Python
15 votes407 views6 answers
List to text file python
Python
0 vote362 views1 answer
Pthon return value with highest occurences
Python
16 votes342 views5 answers
How to create window in tkinter
Python
1 vote315 views1 answer
How to get the text from a label in tkinter
Python
11 votes417 views4 answers
Cv2 rgb to bgr
Python