PlatformIO has support for hundreds of boards, including Arduino Uno, Arduino Leonardo, Arduino Nano, and Arduino Mega. You can select the option that matches your board. 4. Write Your Arduino Code.

This code can be used to drive two linked HUB75 Matrix LED 64x32 panels (128x32 but can be used with single 64x32 too) with an Arduino Nano, Pro Mini or Uno (ATMega 328p w/ 2kb RAM and 32kb flash).