I saw these POV(Persistence of Vision) devices on other Instructables and thought I would like to make one and I have always wanted my own "APPLAUSE" sign. Next improvement will be to make it go on whenever I enter the room. :) Maybe have it say, "And here's Charlie !" But that is for another time.
So I got a fan at a garage sale, did some reading , found some code and below is a video of my machine in action.
I started with nice code from an Instructable by Scott Mitchell - "Arduino Bike POV" but what I ended up with is his code greatly parred down. I could not get it to work at first and so I keep changing the code . Turned out my problem had nothing to do with the code. So I am going to go back to his code and try again as his is much more generic and would work more easily with different phrases. But that is for later also.
The video below shows the POV in action. It does not seem as broken or disconnected in real life as it does on the video.
Step 1: Get stuff
Items used in this project:
small fan - garage sale - 2.00
misc lumber - my basement - 0.00
a length of plastic 15 by 2.5 inches - my basement - 0.00
an Arduino - I use a Ardweeny from SolarBotics - about 10.00
7 red LEDs - already had - 1.00
7 - 330 ohm resistors - 3.00
Halls Sensor - I got from Adafruit - US5881LUA - 2.00
1 10k resistor to be used with the Halls sensor - 1.00
2 magnets from local hobby store - 1.00
also will need : wire, 9v battery , screws, Loctite 5 min epoxy, small PCB from Radio Shack