The best way to learn Arduino, as with any other hands-on skill, is to practice creating a project. You can find a host of ideas online, but the best resource to find Arduino projects to try is ...

While the Arduino microcontrollers work fairly well on their own, they can take your projects to the next level once you pair them with ESP32 and Raspberry Pi Pico boards.

The thing about Arduino's I/O pins is that they come with special functions (and corresponding limitations) that beginners are generally unaware of. For instance, in the Uno board, pins D0 and D1 ...