Got a Basic POV (persistence of vision) LED demo (want a full text/font.h version, but this is the best I have been able to do yet). It just shows a chaser back and forth type effect when waved around that looks like a saw tooth wave. Video this weekend and more info. Code is below:

#include <avr/io.h> #include <util/delay.h> #define DELAY 125 void display(int nerdful) { PORTC = nerdful; _delay_ms(DELAY); } int main (void) { DDRC = 0x1F; // outputs to PC0, PC1, PC2, PC3,PC 4 while (1) { display(0x01); display(0x02); display(0x04); display(0x08); display(0x10); display(0x08); display(0x04); display(0x02); } return 0; } /* POV (persistence of vision) BASIC DEMO WITH 5 PINS. Does not use libnerdkits in makefile, use # to comment out makefile lines related. Hacked by www.Nerdful.com */