Need help with serial porting; The QinHeng serial adapter (Chinese Arduino Uno) doesn't show up in dmesg. I managed to get it working ones, but after a reboot it disappeared again and
USB to RS485 Adapter
CH340x Driver Information « 3d Printer Tips and Mods Wiki
Serial Console Cable on MacOS - Exterior Memory
WinChipHead USB-SERIAL CH340/CH341 Driver v.3.5.2019.1 download for Windows - deviceinbox.com
Y-HAO USB to RS232 Adapter Driver : Nanjing Qinheng Microelectronics Co., Ltd. : Free Download, Borrow, and Streaming : Internet Archive