This is a bit of toy code to write in braille. To try this, load this file (‘M-x load-file path/to/toy-braille.el’), then do:
M-: (get-toy-braille-string "just a test")
That’s just a toy, meant as an excuse and maybe a tool to learn a bit of braille, nothing more.
Unicode fonts are needed.
You can try:
M-: (set-default-font "-*-unifont-*-*-*-*-*-*-*-*-*-*-*-*")
or
M-: (set-default-font "-*-clearlyu-*-*-*-*-*-*-*-*-*-*-iso10646-*")
(only works if the relative font is installed and properly configured).