How to Develop a Custom Alexa Skill to Control Your ROS 2 Robot
👉 How to Develop a Custom Alexa Skill to Control Your ROS 2 Robot In this step-by-step lab, you’ll learn how to create a custom Alexa Skill from scratch that can send commands to your ROS 2 robot. We’ll use the Alexa Developer Console to define intents and invocation phrases, and configure the skill to […]
How to Build and Test a ROS 2 Service Client in Python
In the previous tutorial, we built a simple ROS 2 service server that takes two integers and returns their sum. Now it’s time to create a Python client node that uses this service and communicates with the server to request the calculation. 🤔 What’s a ROS 2 Service Client? A service client is a node […]
How to Build and Test a ROS 2 Service Server in C++
In robotics, especially with ROS 2, it’s common for different nodes to interact and collaborate to accomplish tasks. So far, we’ve used the publisher/subscriber model to communicate between them — which works well for data streaming. But what if you just need to trigger a specific operation and get a result back? That’s where Services […]
How to Build and Test a ROS 2 Service Server in Python
In robotics, especially with ROS 2, it’s common for different nodes to interact and collaborate to accomplish tasks. So far, we’ve used the publisher/subscriber model to communicate between them — which works well for data streaming. But what if you just need to trigger a specific operation and get a result back? That’s where Services […]
Smarter Path Planning in ROS 2: Implementing A* in Python
In the world of robotics, planning a path from one point to another isn’t just about finding a route—it’s about doing it intelligently. If you’ve ever implemented Dijkstra’s algorithm, you know how powerful it is… but also how slow it can be when the map gets big. What if we could be smarter? What if […]
PID Control Algorithm
In control theory, the PID (Proportional–Integral–Derivative) algorithm is often considered the holy grail of control. PID is one of the most successful control algorithms due to its flexibility and simplicity, and it’s relatively easy to implement. In fact, the PID control algorithm has proven robust and flexible enough to yield excellent results in a wide variety […]
Navigazione waypoint ROS2 con ripianificazione dinamica tramite Nav2
In this tutorial, you’ll learn how to implement waypoint-based navigation in ROS2 using the Nav2 stack, enhanced with dynamic replanning capabilities. This setup enables your robot to follow a sequence of predefined goals and recalculate the path if unexpected obstacles appear. It’s ideal for autonomous patrol or area coverage in indoor environments.  📝 Requirements – […]
Advanced SLAM in ROS2: Mapping with Cartographer
In this tutorial, you’ll learn how to use Google’s Cartographer with ROS2 to perform advanced 2D SLAM (Simultaneous Localization and Mapping). Cartographer is a real-time SLAM algorithm that provides loop closure and accurate map construction in dynamic environments. We’ll use a simulated TurtleBot3, but the steps are adaptable to real robots.  📝 Requirements – ROS2 […]
How to Integrate ROS Control into a Simulated Robot in Gazebo
Controlling a simulated robot as if it were real — that’s the power of ROS Control. In this guide, we’ll see how to properly configure the URDF model so ROS can “command” the simulated motors of our BumperBot. 🚀 Introduction: What Is ROS Control and Why Use It? Imagine building a robot with real motors, […]
Choosing the Right Locomotion System for Mobile Robots
Whether it’s a four-legged robot climbing rocky hills or a drone hovering over a building site, locomotion is what gives mobile robots the power to explore, navigate, and interact with the world. But what makes one locomotion system better than another? Is there a perfect design? The answer is more nuanced than you might think. […]
