งานปฏิบัติ3

ไฟวิ่ง4ดวง

int led1 = 2;
int led2 = 3;
int led3 = 4;
int led4 = 5;
void setup()
{
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
}
void loop()
{
digitalWrite(led1,HIGH);
delay(500);
digitalWrite(led1,LOW);
delay(500);
digitalWrite(led2,HIGH);
delay(500);
digitalWrite(led2,LOW);
delay(500);
digitalWrite(led3,HIGH);
delay(500);
digitalWrite(led3,LOW);
delay(500);
digitalWrite(led4,HIGH);
delay(500);
digitalWrite(led4,LOW);
delay(500);
}