29/04/2026
Linux-like shell for the Arduino UNO
https://www.cnx-software.com/2026/04/27/kerneluno-a-lightweight-os-for-arduino-uno-with-a-linux-like-shell/
KernelUNO is a lightweight OS for Microchip Technology Inc. ATmega328P boards that provides a shell with typical commands such as ls, df, free, or uname, as well as commands for GPIO control.
It's a single Arduino sketch with 546 lines of code released under a BSD license.