piclist@ian.org wrote:
> I got my hard drive clock project up and running today after some advice 
> from you folks.  I took a drive that worked, but had no room and 
> re-mounted the moter higher up to get it functioning and all the led's and 
> sensor mounted.
>
> I am using a tiny magnet glued to the platter and a hall-effect to time 
> the rotation, and tri-color led's are mounted around the edge for 
> lighting.  The platter is going to be replaced with a nicer one now that 
> I have working hardware.  It's too thin, off center and just plain bad.
>
> The PIC is a 16F88 running with the internal 8MHz clock.  One digital pin 
> for the hall effect switch, and three digital outs hooked to darlington 
> drivers for the red, green and blue 12v lights.  Code is pretty simple, 
> just a single interupt to time the speed of the platter (since it's a hard 
> drive I could hard code the speed but I like it this way because you can 
> slow it down with a finger and it maintains the image) and then turning 
> the leds on and off when needed.
>
> Here are two images, and a video...
>
> http://www.ian.org/HD-Clock/FirstLight.jpg
>
> http://www.ian.org/HD-Clock/NastyPlatterSlice.jpg
>
> http://www.youtube.com/watch?v=dh2ulD3tmDQ
>
> --
> Ian Smith
>   

Thanks Ian.

It is very cool.

Tell me more about the LED's though. I can;t make out what you are 
using... is it a Bar LED? Is there a part number for it or something?

Thanks

Rolf
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