The UNO R4 Minima clone has a 32-bit ARM Cortex-M4F processor at 48 MHz Renesas RA4M1. The older R3 had an 8-bit ATmega328 processor. The new R4 is 3-16x faster and offers more...
This Arduino UNO R4 board clone has all the same specifications as the original: 32-bit ARM Cortex-M4F processor at 48 MHz Renesas RA4M1. The older R3 had an 8-bit ATmega328...