[Eduardo Zola] has just put the finishing touches on this awesome real-time persistence of vision display which displays text as you type!
It looks like the display is mounted on a small DC fan, which [Eduardo] powers using a bench top power supply. This allows him to fine tune the speed manually, without adjusting the the actual POV controller. The display receives the characters from the keyboard via a small USB RF receiver, and it has got a pretty snappy response time.
There isn’t too much more info on the project, but it certainly gives us an idea — could persistence of vision be used to create a kind of heads up display in a vehicle? What do you think?