How to Build a LiDAR Subscriber in ROS 2 (C++) Open Class
What you will learn in this Open Class
ROS 2 subscribers are essential building blocks for robot communication, allowing nodes to receive and process sensor data in real-time. Understanding how to create subscribers in C++ is fundamental for developing autonomous robot behaviors!
In this Open Class, we'll explore how to create a ROS 2 subscriber node in C++ that receives LiDAR sensor data. Together, we'll implement a node that subscribes to laser scan topics, processes the sensor readings, and extracts useful information like the closest obstacle distance and direction.
Learning points:
In this Open Class, we'll explore how to create a ROS 2 subscriber node in C++ that receives LiDAR sensor data. Together, we'll implement a node that subscribes to laser scan topics, processes the sensor readings, and extracts useful information like the closest obstacle distance and direction.
Learning points:
- Understanding ROS 2 subscribers and callback functions
- Working with sensor_msgs/LaserScan message types
- Creating and launching C++ nodes in ROS 2
- Processing LiDAR data to detect obstacles and distances
- Configuring CMakeLists.txt for C++ ROS 2 packages
Robot Used: FastBot