Analog Clock Design

Hi,
H have a problem in designing of clock. If you have a idea, guide me please.

Target:
I want to design a big analog clock with RGB LED.

problem:
I hve 60 string witch in each string I have 10 RGB LED. (Picture : **broken link removed**)
In each string I have 4 lin than refers to Red, Green, Blue and Ground. Exept of Ground that is shared in all circuit, I have 3 pin for each string. Totally, 3 * 60 (string) = 180 pin that i must control by micro or other processors.
180 pin is my problem. for light controllong i have to drive it by PWM, so i can't use Coder/Decoder. Also, this program is not very complex for using FPGA.
I think if all LEDs were the same (single color LED), I used Stepper motor for turning on/off of seconfd hand (for example) but instead of 1 pin, I have 3 pin for colors.

what's your idea? what do you think?

blueroomelectronics said:

The links on your books section are all pirated books. You should consider deleting them if you expect your forums to be taken seriously.

Click to expand...

I'v deleted my Signature. Is it ok?

I changed my project. I want to change my idea in a propeller shape.

Do you have a project or can you guide me how can i design. I found this YouTube clip:
YouTube - the most amazing RGB propeller clock ever seen

As you see, designer have used lach for RGB LED! Is it possible generating PWM signals with Lach/Buffer for controlling the light?