Program Robots Like a Boss
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 In ROS2 the word “message” – when talking about the concept – has been replaced by “interface”.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
What is the Arduino INPUT_PULLUP option for the pinMode function? In this tutorial I will show you different examples, using an Arduino board and a simple push button, to explain what INPUT_PULLUP does, and how to use it in your Arduino programs. And… Let’s get started! Quick recap about pinMode With Arduino you can use … Read more
When you open a new program in the Arduino IDE, you immediately get empty void setup and void loop functions written for you. void setup() { // put your setup code here, to run once: } void loop() { // put your main code here, to run repeatedly: } What are those void setup and … Read more
In this tutorial you’ll see how to get started with Thonny IDE on Raspberry Pi OS. So, you’ve installed Raspberry Pi OS on your Raspberry Pi 4 (also works for 2 & 3) to start programming with Python 3. If you begin, you want to use tools that just work. You don’t want to waste … Read more
So, you’re starting to learn how to use your Raspberry Pi 4 board, and you may be wondering: what can you do with your Pi? What fun project can you start, and what can this project teach you so you’re progressing while building something? In this post I’ll give you some things to do with … Read more
In this tutorial you’ll learn how to properly use the delay() function to add some delay between 2 actions in your Arduino programs. Then, you will discover why using delay() is often not a good idea when you want to make your programs scale, and how to fix that. All right, let’s get started! Why … Read more
In this tutorial you will learn how to run ROS2 on multiple machines, including a Raspberry Pi 4 board. As you’ll see, things will be quite easy and there is almost no configuration to do. If you’re using a Raspberry Pi with ROS2 as one of the machines, make sure you have correctly installed ROS2 … Read more
In this tutorial I’ll show you how you can chain ROS2 topics and thus build a data pipeline through several nodes. This is a pretty common use case in robotics: you get some data from a sensor, and you need to pass it through several parts of your applications. Each part needs the data to … Read more