ConsolePi

What it is

A Raspberry Pi that becomes a serial console server. USB-to-serial adapters and onboard UARTs show up over SSH, Telnet, or Bluetooth. Cluster multiple units over mDNS or Google Drive, AutoHotSpot Wi-Fi, OpenVPN when the IP changes, PushBullet, power-outlet control, and ZTP via DHCP plus Jinja templates. Single-command install on Raspberry Pi OS.