Spoke POV is an easy-to-make electronic kit toy that turns your bicycle wheel into a customized display! The project includes a free schematic design, open software (this is good) for uploading and editing stored bitmap images, and a high-quality kit with all the parts necessary to build your own.
Specification & Features
Can be used with road, mountain or BMX wheels!
30 LEDs on each side (22 for BMX) x 256 radial pixels
Runs on 2-3 AA batteries for 10 hours or more, assuming 3000mAh alkalines and 50% image coverage.
Can run on rechargable NiMH AA’s
Comes with high-brightness red LEDs, but can be upgraded with green, blue, amber, etc.
Automatically shuts off after 3 minutes
wxPython based software runs on any Linux or Windows PC with a parallel port
Design is all through-hole parts, perfect for a first time kit builder.
With one spoke, total persistence at 15mph. Two spokes, 10mph. Three spokes, 7mph. (Assuming a mountain bike wheel). Looks cool even if not completely persistant.
Great for safe riding at night, provides excellent side visibility.
PCNews Verdict: 8/10 I want to see more projects like this. Really.
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Good news: Kits & PCBs available for purchase 
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