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PROJECT NAME: Spoke Ink
Take your MSP430 for a spin with Spoke Ink! Spoke Ink is a booster pack that attaches to the spokes of your bicycle wheel. Using an array of 32 RGB LEDs and a magnetic sensor, this booster pack projects a bright, upright image right from the spokes of your wheel. Using our software, you can create this image from any bitmap.
How does it work?
The Spoke Ink booster pack is just one row of LEDs! How can it create an image? The human eye creates a full image on the wheel thanks to a phenomenon known as persistence of vision. To generate a persistant image, Spoke Ink and the MSP430 have to light up in the exact same radial position with each turn of the wheel. And, they have to be able to do so no matter how fast the biker is going and how quickly the wheel is rotating. This dynamic adjustment is achieved by triggering interrupts based on a small magnetic sensor that trips each time the booster pack passes a small magnet glued to the stationary part of the bicycle.
Please, see attached zip folder for all of our code, schematics, documentation, and bill of materials (BOM).
Spin the wheel and watch your image come to life!
Thank you! Don't forget to vote for Spoke Ink in the 2012 Intern Design Challenge!
All the best,
George, Valerie, and Ryan
Video is blocked in my country (USA) :(
Awesome! I know your team worked very hard on this. Isn't it great when it all comes together? I'm impressed! I want one! Congratulations!!
What zip folder?
Charlie, the zip folder should be listed at the top of this page. Ron, thank you very much! And, Max, it was our first YouTube upload, so we ran into some copyright issues. It should be all clear now. Thank you all for checking out Spoke Ink!
Hi, thanks for sharing your project, could you say me what program you use to do the schematic? I tried to open with Eagle 5.9 but i couldn´t. My email is email@example.com
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