Dot Flip Control
Control a Flip-dot screen at high speedWe got some flip-dot signs at the local hackerspace OSAA and we wanted to get them going. The flip-dots are from busses, where the signs got replaced by LED displays. However, the flip-dots are such a lovely technology that you just need to hack them.
Rasmus has been coding a simple serial interface to flip dots while (robot-)Asbjørn and myself have reverse engineered parts of the hardware interface. Subsequently, Asbjørn (the other one) coded some python based wave simulations and Rasmus ported tetris and implemented a real-time video feed.
We have a blog entry on G+ from Flemming which includes a small video of our test setup. It shows an animated 3D cube and illustrates the speed we managed to achieve.
With all the possibilities now, it'll be fun :-)
We now have a collection of code available at http://flipdot.osaa.dk. The code has the firmware of the controller as well as a QT based flipdot screen simulator and a fly-through-the-maze game.
We have the lot running at the local library. We'll make a video and post it here (done).
The sound of the flipdots (very nice indeed).
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