BRLTTY
lastmod 2024-10-31created 2024-10-311 edits
BRLTTY is a background process (daemon) which provides access to the Linux/Unix console (when in text mode) for a blind person using a refreshable braille display. It drives the braille display, and provides complete screen review functionality. Some speech capability has also been incorporated.
A program for operating a device called a braille display, which reads out screen contents for visually impaired people when Ubuntu boots into console mode.
Troubleshooting
/dev/ttyUSB0 connection drops by itself on Ubuntu
See Universal Serial Bus#/dev/ttyUSB0 connection drops by itself on Ubuntu. In short, remove brltty with sudo apt purge brltty.