http://goo.gl/dMdelJ
You can use a Braille display to read and enter text in Google Docs, Google Slides, and Google Drawings.
Enable Braille support
To enable Braille support, follow these steps:
- Open a document, presentation, or drawing in Google Chrome or Internet Explorer. (Firefox isn't yet supported.)
- If you haven't already enabled screen reader support, press Control + Alt + Z (Windows) or Command + Option + Z(Mac).
- Press Alt + / (Windows, Chrome OS) or Option + / (Mac) to open a menu search.
- Type "Braille" to locate the Enable Braille support command. You'll hear "Enable Braille support, not checked."
- Press Enter. You'll hear "Braille support enabled."