// Evil Genius Project 29 - Binary Clock with 16 LEDs!
#include <Time.h>

int hourLEDs[ ] = {1, 2, 3, 4}; 	// least significant bit first 
int minuteLEDs[ ] = {10, 9, 8, 7, 6, 5};
int secondLEDs[ ] = {17, 16, 15, 14, 13, 12};
int loopLEDs[ ] = {17, 16, 15, 14, 13, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
int switchPin = 18;
void setup( )       {  
for (int i = 0; i < 4; i++)  
	{ pinMode(hourLEDs[i], OUTPUT);   }  
for (int i = 0; i < 6; i++)  
	{ pinMode(minuteLEDs[i], OUTPUT);   }  
for (int i = 0; i < 6; i++)  
	{ pinMode(secondLEDs[i], OUTPUT);   } 
setTime(0);
}
void loop( ) {  
if (digitalRead(switchPin))  {  adjustTime(1);  }  
else if (minute( ) == 0 && second( ) == 0)  {  spin(hour( ));  }  updateDisplay( );  delay(1); }

void updateDisplay( ){ 
time_t t = now( );  setOutput(hourLEDs, 4, hourFormat12(t));  setOutput(minuteLEDs, 6, minute(t));  setOutput(secondLEDs, 6, second(t));
}
void setOutput(int *ledArray, int numLEDs, int value) {
	for (int i = 0; i < numLEDs; i++)    
	{ digitalWrite(ledArray[i], bitRead(value, i)); }
}
void spin(int count)  {  	for (int i = 0; i < count; i++)
		    {  	for (int j = 0; j < 16; j++)      
{digitalWrite(loopLEDs[j], HIGH); delay(50); digitalWrite(loopLEDs[j], LOW);  }
	}
} 	// END