RA4M1-R4 core “clone” board (left) vs Arduino UNO R4 Minima (right) Some of the changes include a second row of yellow male headers, a 3.3V/5V switch for Arduino shields, an MD button to enter ...

Arduino has shrunk the UNO R4 with the Arduino Nano R4 board equipped with the same 48 MHz Renesas RA4M1 32-bit Arm ...

LEDs must be SMD parts with high power output (at least 10 W each) Power input connection is provided by standard 16 AWG wire Components must be placed only on the top layer Total board thickness must ...

Arduino has announced the new UNO R4 board family for prototyping and learning. The new models feature a faster microcontroller, a USB-C connector, improved power, Wi-Fi and Bluetooth LE, and more.

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.

However, the USB port doubles as a power port. To use it as such, you need a USB cable and a 5V power source. In the case of the Arduino Nano, a mini-B USB cable is required.