8+ two LED functions off one pin

hi everyone. check out build of 2 led module has 8+ functions off 1 arduino pin.
watch youtube video at: http://www.youtube.com/watch?v=8uzndvtic24&feature=share&list=uu0_hiu0q4bhnghtijcg4sdw

code: [select]


/* module_2_leds 17 may 2014 jds  :)
make module:
1) 1" x 1.5" perf board
1) male 3 pin header
2) female 2 pin headers
1) 220 ohm reststor
1) 74ls04 ic or inverter ic 74ls02 etc.
2) leds

wireing module:
3 pin male header pins are:
signal, 5 volts, ground.
connect signal pin inverter input , 1 pin
of each 2 pin female headers.
connect inverter output other side of the
2 female 2 pin headers.
connect 5 volt male header ic pin 14 of 74ls04
connect ground male header ic pin 7 of 74ls04.
plug 2 leds 2 female 2 pin headers, one
cathode, , on anode, signal side.
that's it!
connect signal arduino pin 3 'in example'.
connect 5 volt pin arduino 5 volts
connect ground pin arduino ground.
load , run program.
*/
int i;
int j;
int signalpin = 3;
void setup() {
 pinmode(signalpin,output);
 serial.begin(9600);
}
void loop() {
 serial.println();
 serial.println("jds led module");
 serial.println("by: jim steinbrecher");
 serial.println("all off 1 arduino pin.");
 serial.println();

 digitalwrite(signalpin,high);
 serial.println("one led on");
 delay(5000);

 digitalwrite(signalpin,low);
 serial.println("other led on");
 delay(5000);

 serial.println("one led flashing");
 digitalwrite(signalpin,high);
 for (i = 1; < 25; i++)
 {
 pinmode(signalpin, input);
 delay(100);
 pinmode(signalpin, output);
 digitalwrite(signalpin,high);
 delay(100);
 }

 serial.println("other led flashing");
 digitalwrite(signalpin, low);
 for (i = 1; < 25; i++)
 {
 pinmode(signalpin, input);
 delay(100);
 pinmode(signalpin, output);
 digitalwrite(signalpin, low);
 delay(100);
 }


 serial.println("flashing leds");
 for (i = 1; < 25; i++)
 {
 digitalwrite(signalpin,high);
 delay(100);
 digitalwrite(signalpin,low);
 delay(100);
 }

 serial.println("both leds on");
 for (i = 1; < 2500; i++)
 {
 digitalwrite(signalpin,high);
 delay(1);
 digitalwrite(signalpin,low);
 delay(1);
 }

 pinmode(signalpin,input);
 serial.println("both leds off");
 delay(5000);
 pinmode(signalpin,output);

 serial.println("flashing leds pwm");
 for (i = 1; < 10; i++)
 {
 for (j = 1; j < 255; j++)
 {
 analogwrite(signalpin, j);
 delay(2);
 }
 for(j = 255; j > 0; j--)
 {
 analogwrite(signalpin, j);
 delay(2);
 }
 }
}


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