Arduino announces UNO R3 board update after 12 years

Arduino has announced the fourth generation of its most popular single-board microcomputer UNO. According to the manufacturer, the form factor and operating voltage of 5 V were retained in UNO R4, but the filling itself was updated and improved.

It is known that the board will be equipped with a minimum of 32-bit Cortex-M4 processor with a 3-16 times increase in clock speed, RAM and flash storage. Compared to the previous generation, the new product will use the Renesas RA4M1 processor with a 3-fold increase in frequency (48 MHz), 32 KB SRAM instead of 2 KB and 256 KB of storage instead of 32 KB.

“This huge leap starts with the new processor from Renesas, the world leader in microcontrollers. While more than 10 million users have been enjoying playing and working with the 8-bit Arduino UNO R3 MCU for over a decade, the new RA4 series MCU will open up endless possibilities for new projects for more advanced enthusiasts and bring the board up to modern standards. company blog . 

At the request of the community, the USB port has been upgraded to USB Type-C with an increase in the maximum supply voltage to 24W. The board also includes a 12-bit analog DAC. Two versions will be available: UNO R4 Wi-Fi with Espressif S3 Wi-Fi module and UNO R4 Minima without wireless connectivity.

A full presentation of the Arduino UNO R4 will take place in May this year.