That said, we'll be focusing on the Uno R3 in this discussion ... also the tiniest ever produced by Arduino. It comes in a light seven-gram weight, with dimensions of 45 mm (length) by 18 mm ...

Arduino will continue to make available the Arduino UNO R3 and provide support to all those Arduino enthusiasts that have and would like to create projects using its 8-bit AVR microcontroller.

The Arduino UNO ... Adhering to the UNO form factor, the UNO R4 Minima ensures hardware compatibility with its predecessors. This means that transitioning from the UNO R3 to the R4 Minima will ...

The Arduino Uno R4 is to have a Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller, and there are “no plans to discontinue the popular Uno R3” , according to Arduino, which estimates that R4 will ...

Arduino has partnered with Renesas and Espressif to introduce the latest addition to its UNO family, the UNO R4, which offers a 3x performance improvement over the UNO R3 and is available in a Wi-Fi ...

Software scalability is also supported on the new board, allowing easy upgrades for projects made with UNO R3 or Leonardo. Requests from the Arduino community see the USB port upgraded to USB-C ...

Then, an Arduino board might be ... it's still slightly cheaper than the R3 at $27.50. One of the most significant differences between the classic Rev3 and Uno's more recent iteration, the R4 ...