Program Robots Like a Boss
Great, you’ve learned a bit of Python 3 with your Raspberry Pi and you might be wondering: how can you run a Python 3 script in the terminal? For now you may have used only the Thonny Python IDE, or any other easy-to-use system to write Python programs. This is perfectly fine, especially to start … Read more
In this ROS2 tutorial I will show you how to use an rclcpp parameter callback, so you can dynamically change parameters’ values while a node is alive. With parameters you can already change the configuration of the node at runtime. But after that, any change to any parameter won’t be taken into account. With a … Read more
What are the different Arduino variable types? Whether you are a complete Arduino beginner or you already know how to program, this guide will help you discover and all the most useful Arduino variable types. First of all, Arduino is a subset of C/C++, with additional functionalities related to the hardware features of the board. … Read more
In this Arduino tutorial I will show you how to turn an LED on and off with a push button. In fact, we’ll do 2 slightly different applications. First, we will power on the LED when the button is pressed, and power off the LED when the button is not pressed. And then we’ll modify … Read more
In this tutorial I will show you how to control an LED with your Raspberry Pi 4 (also works with Raspberry Pi 3 and 2) and Python 3. Controlling an LED is the first step you can take to discover how GPIOs work and what to do with them. After this you’ll be able to … Read more
Learning Python 3 with Raspberry Pi is a great idea. You will be able to write programs producing real physical results, while also learning more about computer science in general, system administration, hardware, etc. Programming is not only about smashing code into a text editor. To be able to write great programs you also need … Read more
After starting a ROS2 node with some parameters, you want to be able to dynamically change those parameters and get notified inside your code? Well, the rclpy parameter callback is what you need to use. (if you were using ROS1 before, this is the same as dynamic_reconfigure, but better). In this tutorial I will show … Read more
In this tutorial you will learn how to use the Raspberry Pi camera with the Python picamera library. You will use picamera to capture images and videos, and also to customize the settings of the Pi camera. The tutorial works for Raspberry Pi 4, but also for previous versions of the board: RPi 2 and … Read more
In this tutorial you will learn how to create your own ROS2 custom message (Msg). I will also cover how to create custom services (Srv), as the configuration and the process are the same. In ROS2 the word “message” – when talking about the concept – has been replaced by “interface”. So, to create your … Read more
In this tutorial I will show you how to take a picture with the Raspberry Pi camera, from the Raspberry Pi OS (previously named Raspbian). The Raspberry Pi camera module is a great addition to your Pi. It will allow you to develop more advanced applications with vision. And if you thought that taking pictures … Read more