The company where I work has recently been doing a big push for safety, and last week they passed out small POV fans with sayings like, “Thx 4 Being Safe”, “Being Safe is Cool”, “I'm a Safety Fan”, etc. The fan has clear, flexible plastic blades, and one of the blades has a strip of 7 LEDs in it which are used to display the messages. The fan itself is pretty cool....but I wanted to see if I could make it say something else. The box it came in says "Programmable Message Fan: Model 45 Series". I searched online and found similar fans that were re programmable, but those had 4 buttons for programming in messages, and mine only has an on/off button. This was a very simple project, but it was fun to figure out how something worked and then make it do something else.
I've posted the Octave script, OOCalc file with character codes, and a sample Arduino sketch at https://sourceforge.net/projects/povfan/ if anyone wants to try this for themselves.