The revolutionary UNO R4, announced on Arduino Day, is now available on the Arduino Store! The fourth version of the iconic, beloved UNO adds a whole new dimension to the world of DIY and making revolutionized by the simple 8-bit microcontroller over a decade ago. Take your maker potential to new heights: UNO R4 has a speedy 32-bit Arm Cortex-M4 and offers a 16-fold increase in memory, as well as more connectors and connectivity options than ever - in two variants: UNO R4 Minima and UNO R4 WiFi.

Both variants allow you to start making or easily upgrade UNO R3-based projects with more computational power, memory, and speed than previous versions - courtesy of the RA4M1 microcontroller by Renesas - while maintaining the same form factor and 5 V operating voltage.