This project was designed by microcontroled1204. You can get the kit from Gadget Gangster. Build time is about 20 Minutes and it's an easy build.
Step 1: FAQ
The LED's on the PCB light up in a specific pattern. As the motor spins the board around, you're able to see the pattern - this is an example of the Persistence of Vision effect.
Does it take batteries?
Yes. The kit comes with a lithium cell battery to power the SX, but you'll need to provide 2 AA batteries to power the motor. The board is designed so you can mount it on other spinning things, like bicycle wheels, also.
Can I put it on something other than a motor?
Yes, the board has a set of holes on both ends, put a string or wire through the holes and you can tie the board to almost anything. I've tied it to my bicycle and it looks pretty cool.
What are the patterns?
You can see an example of the patterns that come pre-programmed in the video on the previous step. Arrows, animation, and text characters are all possible.
Can I change the patterns?
Yes. You'll need an SX Blitz programming key, but otherwise it's pretty straightforward. The last step of this instructable has as link to the source code that you can modify.
The Spinning LED display was designed by microcontroled1204.