Halloween Fun with Arduino and LCD
For Halloween this year I did two things. I redid my spinning POV hat. I basicallly, just made it stronger, and lighter since it fell apart last year. To make it lighter I used the Arduino Pro (5V) and two coin style batteries (CF2032) instead of the normal Arduino and the heavier 9 volt battery. I didn't have much time to perfect it so the effect wasn't perfect ( code ). I really need to put a sensor on it that senses every time it spins around for it to work correctly, at the moment I just guess how fast it's spinning and put in a delay based on that guess. What came out doesn't look that hot: The second device I made was a little more successful. It was a 16x2 line LCD from sparkfun (GDM1602K rev 2.1) display connected to a button so that every time you pressed it one more friend would be added. I would go up to people and say "Press the button to be my friend on orkut". There's a colloquialism here in Brazil: "Me Add" which is bo...