If you're on the hunt for the perfect board, then you've probably come across the Uno and Nano. They're two of the most frequently used Arduino variations, but they serve different purposes.

Arduino introduces ... made with Uno R3 or Leonardo. Keeping the pinout, voltage and form factor unchanged from the Uno R3 ensures maximum hardware and electrical compatibility with existing shields ...

The official Arduino team has this week revealed more details about the new Arduino UNO R4 development Board which ... “When it comes to hardware compatibility, pinout, voltage and form factor ...

The WiFi version comes with an Espressif S3 WiFi module, that will help to expand creative opportunities for makers, educators, and hobbyists according to Arduino. The UNO R4 maintains the same form ...

Arduino is launching new versions of the Uno board powered by a Renesas 32bit microcontroller. The Uno R4 comes in two versions: the basic Uno R4 Minima and the Espressif-equipped Uno R4 WiFi.