The previous generation Arduino UNO R3 used the 8-bit microcomputer ATmega328P as the MCU, but the Arduino UNO R4 is equipped with the ' Renesas RA4M1 ' that includes a 32-bit Arm Cortex-M4 core.

We would say that 2023 is shaping up to be the "year of the maker," but every year has looked way since those tiny Raspberry Pi and Arduino microcomputers made their way onto the market. Not only ...