Robotics Ros Intro — Free Robotics Tutorial

TL;DR: Learn Robotics Ros Intro in Robotics with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Robotics Ros Intro in Robotics

ROS (Robot Operating System) is a middleware framework for building robot applications. It manages communication between sensors, processors, and actuators via a publish-subscribe model.

ROS runs on Linux (Ubuntu). Key concepts: nodes (processes), topics (data streams), services (request-reply), messages (data format).

A typical ROS robot: sensor nodes publish data → processing node subscribes and calculates → control node publishes commands → motor drivers execute.

// ROS node structure (Python)
#!/usr/bin/env python
import rospy
from sensor_msgs.msg import Range

class RobotController:
  def __init__(self):
    rospy.init_node('robot_controller')
    self.sonar_sub = rospy.Subscriber('/sonar', Range, self.sonar_callback)

  def sonar_callback(self, msg):
    distance = msg.range
    rospy.loginfo(f"Distance: {distance}")

if __name__ == '__main__':
  controller = RobotController()
  rospy.spin()

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