2.ino (429B)
1 #define GREEN_LED 7 2 #define YELLOW_LED 12 3 #define RED_LED 13 4 5 void 6 setLEDs(int g, int y, int r) { 7 digitalWrite(GREEN_LED, g); 8 digitalWrite(YELLOW_LED, y); 9 digitalWrite(RED_LED, r); 10 } 11 12 void setup() { 13 // put your setup code here, to run once: 14 pinMode(GREEN_LED, OUTPUT); 15 pinMode(YELLOW_LED, OUTPUT); 16 pinMode(RED_LED, OUTPUT); 17 } 18 19 void loop() { 20 setLEDs(HIGH, HIGH, HIGH); 21 delay(400); 22 setLEDs(LOW, LOW, LOW); 23 delay(400); 24 }