While we weren’t able to visit the Toronto Maker Faire this past weekend, a friend let us know about this great hack. A mechanized typewriter that types out tweets directed at the maker, @mschwanzer!
[Michael Schwanzer] has a few blog posts outlining the build, but the first part of this news article and accompanying video explain it quite nicely. The printer-typewriter features an array of solenoids that are controlled by an Arduino using shift registers. A Raspberry Pi collects the information from Twitter and then parses the data to the Arduino for typing. A simple concept, but a complex and relatively expensive build.
During the fair, people could have their own tweets printed and streamed on this site. You can still see it in action though, just check out the video after the break!