The UNO R4 will come in two versions – UNO R4 Wi-Fi and UNO R4 Minima. It is powered by the Renesas RA4M1 32-bit microcontroller based on the Arm Cortex-M4 core, providing a significant boost in ...

The Arduino UNO R4 boasts a 3x performance increase over the UNO R3 and , in addition, SRAM has been upgraded from 2kB to 32kB, and flash memory from 32kB to 256kB to support more complex projects.