Program Robots Like a Boss
In this tutorial you will see how to use YAML to handle your ROS2 parameters. Why using YAML for ROS2 params So, you start to write a ROS2 application and as you progress, you add more nodes, more features, more settings. You use ROS2 params in your nodes because that’s a nice way to set … Read more
In this tutorial I’ll show you how to store an array into the Arduino EEPROM. First we’ll look at arrays composed of int numbers (2 bytes each), and then we’ll do the same with long numbers (4 bytes each). I strongly advise you to check how to store an int number into EEPROM before reading … Read more
So, you’re using the digitalWrite() function in most of your Arduino projects. But you may come to a point when this function is too slow, because you have to use it a lot, and with a high frequency. In this tutorial I’ll show you how to make a fast digitalWrite(), so you can speed up … Read more
In this tutorial I’ll show you how to program your Arduino board from an Ubuntu virtual machine, using VirtualBox. For some reasons, you could want to work with Arduino from your Ubuntu guest instead of your Windows 10 host. In this case, you’ll have a few things to configure before it can work. Nothing really … Read more
In this tutorial you’ll learn how to create a custom ROS action, and import it in your code (Python and Cpp). Using ROS actions is quite handy when you need an asynchronous client/server mechanism. You can of course use some of the existing Action definitions, but oftentimes you’ll need some sort of customization. Setup the … Read more
In this tutorial I’m going to show you how to store an Arduino int data type into your EEPROM memory. If you don’t know how to store and read a byte into EEPROM on Arduino, please check out this Arduino EEPROM tutorial first. This tutorial applies to all Arduino boards that have EEPROM Memory, like … Read more
So, you’re using – or want to use – ROS on a Raspberry Pi. That’s great! ROS + Raspberry Pi is such a powerful combination to create smart robots, with a somehow low cost, and very small electronic board embedded in the robot. Although there are many advantages, there are also some limitations that you … Read more
This tutorial is an introduction to Arduino Firmata, with a focus on Standard Firmata. First I’ll explain to you when and why to use Firmata for Arduino. After that, you’ll see how to quickly setup Standard Firmata on your Arduino. And then you’ll create a client on your computer to actually communicate and give commands … Read more
In this tutorial I’ll show you how to install Raspbian Desktop on a virtual machine, and more specifically on VirtualBox. As you may know, Raspbian – derived from Debian – is the official operating system (OS) for Raspberry Pi boards. But… Raspbian is not only working on Raspberry Pi boards. You can actually install it … Read more
In this tutorial I’ll show you how to write a complete ROS Service on your Raspberry Pi. You’ll see how to create both sides of the ROS Service: the client and the server. Also, to make it more interesting, we’ll use the Raspberry Pi GPIO header to actuate real hardware (using interrupts). Here is the … Read more