MAKE: Blog: Ian’s Spoke POV

Ian’s Spoke POV

This project consists of three circuit boards with a row of 32 LEDs on each (actually 64 LEDs because they’re double sided). The circuit boards are mounted radially in the spokes of a bicycle wheel and batteries near the hub supply power to them. The LEDs are controlled by a microcontroller that measures the rotational speed of the wheel by way of a hall effect (magnetic) sensor. As the wheel rotates, the microcontroller turns the individual LEDs on and off in such a way that a static image appears to float inside the wheel.

Comments

Oldest comments listed first.

Posted by: Grudge on July 27, 2005 at 3:44 AM

Is there a link available to this project?

Posted by: philliptorrone on July 27, 2005 at 3:52 AM

whoops! http://www.ianpaterson.org/projects/spokepov20050704/index.htm

Posted by: dpenley on July 27, 2005 at 12:22 PM

Commercial version at http://www.hokeyspokes.com/designs.htm

I like Ians better though. More flexibility on images and messages!

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