Ask HN: Any projects similar to RONJA (optical point-to-point data link)

2 pointsgt565k2 comments

I've been fascinated by this project

http://ronja.twibright.com/about.php

And was wondering if anyone knows of similar/alternative projects.

This one seems to be limited to about 1.4km. I wonder if there are similar projects with higher range out there.

Thinking about building 2 of these to play with.