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

2 votes143 views1 answer
Adding new column to existing DataFrame in Pandas using assign method
Python
2 votes139 views1 answer
Django override delete
Python
-3 votes103 views2 answers
Detect text in image opencv
Python
0 vote147 views1 answer
How to pass primary key to url django
Python
1 vote148 views1 answer
Append a dataframe to an empty dataframe
Python
3 votes128 views5 answers
Pandas split column into multiple columns
Python
1 vote143 views1 answer
Uninstall a python package from virtualenv
Python
0 vote160 views1 answer
Day 27: Testing hackerrank solution python
Python
2 votes137 views1 answer
Django template capitalize equivalent
Python
0 vote140 views1 answer
Python discord know message from bot
Python