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| #define red 1
#define yellow 2
#define green 3
void setup() {
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
}
void loop() {
trafficLights(red);
trafficLights(yellow);
trafficLights(green);
}
void trafficLights(int light)
{
switch(light){
case 1: digitalWrite(2,HIGH);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
delay(4000);
case 2:
for(int i=0;i<7;i++)
{
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,HIGH);
delay(200);
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
delay(200);
}
case 3: digitalWrite(2,LOW);
digitalWrite(3,HIGH);
digitalWrite(4,LOW);
delay(4000);
break;
}
}
|
