“In details, the new Arduino UNO R4 features the Renesas RA4M1 (Arm Cortex-M4) running at 48MHz, which provides a 3x increase over the UNO R3. In addition to that, SRAM went from 2kB to ...

The new UNO R4 board comes in two versions, with and without Wi-Fi connectivity, and maintains the form factor, shield compatibility and 5V power supply of the UNO R3. The UNO R4 with its 96 red LED ...