Tiny message scroller
Jose sent us this sweet LED message scroller he made using an ATTiny2313. He’s even got a visual editor to generate code for the sub-palm-sized device.
Nice job - even nicer if he posts the code & schematic 
- 7×5 LED message scroller (Google translation here)
In the Maker store:
LED Micro-Readerboard Kit
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Original post by Collin Cunningham