Blinking lights function for Arduino. Written by Ms Margot.

gistfile1.c

void redAndGreen() {
   int redPins[] = {3,5,7,9};
   int greenPins[] = {2,4,6,8};
   int delayTime = 1000;
   
   for (int i=0;i<4;i++) {  //turn on red, turn off green
     digitalWrite(redPins[i], HIGH);
     digitalWrite(greenPins[i], LOW);
   }
   delay(delayTime);
   
   for (int i=0;i<4;i++) {  //turn on green, turn off red
     digitalWrite(greenPins[i], HIGH);
     digitalWrite(redPins[i], LOW);
   }
   delay(delayTime);
}