The ARM version of uLisp now adds support for the two new Uno R4 boards from Arduino, which are based on the Renesas RA4M1 ARM Cortex M4 CPU, with 256 KB flash memory, 32 KB RAM, and a 48 MHz clock. With the same form factor as the original Arduino Uno, and a 5V operating voltage, they are compatible with many of the same shields, while offering more memory and higher performance.
The Arduino Uno R4 Minima is the lowest cost of the two boards:
The Arduino Uno R4 WiFi adds Wi-Fi, and an addressable 12x8 LED matrix for displaying text and animations. The Wi-Fi features and LED matrix are supported by uLisp extensions:
For more details see Arduino Uno R4 Boards.