Can you run an LED with analog pins?

Forum 2005-2010 (read only) General Frequently-Asked Questions
16

Have you tested a simple sketch that just flashes leds, something like this:

int pinArray[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19};   
int count = 0;                                              
                          
 
void setup(){   
}  
                                              
void loop() { 
                                           
   for (count=5;count<17;count++) {                        
   pinMode(pinArray[count], OUTPUT);                        
   digitalWrite(pinArray[count],HIGH);
   delay(500);                                           
   digitalWrite(pinArray[count],LOW);
   delay(500);  
   pinMode(pinArray[count], INPUT); 
   delay(500); 
  } 
}

If that works as expected , it may narrow down the things that could be going wrong