This is amazing! I played (very very briefly - like literally a 5 mins hands on) with a braille display sometime in the mid 90's. My dad was an early blind computer + speech user. like Apple II with ECHO-II speech synth kind or early and one summer had a visitor to the house with an earlier incarnation of the braille display. The guy had a whole load of adaptive tech with him but the braille display was the most interesing at the time. My dad never got into using anything like that, in fact never really got into portable tech as it was all still very big and bulky up to the point he passed away in 2003. I think he'd have loved getting involved in the Raspberry pi ecosystem and had he still been alive may have nudged me to making more use of them in assistive use cases. Thanks for the link!

This has got to be one of the coolest uses of pi ever. Amazing !

Cool.

You make reference to fonts. I assume this isn't font in the traditional sense, ie the look (feel?) of a character.