Use the four UARTs of the Rowland Technology MULTIUART / SPI2UART board as standard Arduino serial ports.
Each channel is an Arduino Stream, so it works with print, println, readStringUntil and any library that accepts a Stream such as Serial or SoftwareSerial. Four buffered UARTs over a single SPI bus.
| Filename | Release Date | File Size |
|---|---|---|
| MultiUART-1.0.1.zip | 2026-09-17 | 65.59 KiB |
| MultiUART-1.0.0.zip | 2026-09-17 | 65.45 KiB |