external LED strip on my SpokePOV
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external LED strip on my SpokePOV

by carmatic on Fri Jun 01, 2012 12:15 pm

http://www.youtube.com/watch?v=vZMcp6c-yY0
as the video description says, this is my SpokePOV that i puchased last year and i finally got around to powering it up... its lighting up 2 pairs of while LED strips that i have modified , via 2 transistor banks ... the LED's are default 'on' because the transistors are NPN and i have not altered any code in the attiny2313 ... this is it displaying the (inverted) default image which came preloaded with the SpokePOV

the biggest problem was the 60-conductor connectors warping from the solder heat, and not fitting together properly anymore.... it took alot of work to get all the LED's connected properly and lit up!
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Re: external LED strip on my SpokePOV

by carmatic on Thu Jun 14, 2012 12:15 pm

The purpose of these LED strips is for this
Image

this isnt the first VAWT with POV since there was one made by a company called Quiet Revolution back in 2006 which did the same thing... but im pretty sure that mine is the worlds only 'homemade' , magnetically levitated VAWT with POV

As you can probably tell this is SpokePOV displaying one of its preloaded patterns, but in a cylindrical format rather than on a wheel

the Hall effect sensor response seems to be quite inconsistent, the 2 levels of brightness in the LEDs in this long-exposure photo is caused by the SpokePOV 'playing back' the image at 2 different speeds relative to the rate of rotation

this is a video of it in action
http://youtu.be/65w1bNFryw4
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Re: external LED strip on my SpokePOV

by adafruit on Sat Jun 23, 2012 7:11 pm

Interesting, what about using a digital LED strip? might be easier than handsoldering 60 LEDs ?
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