Traffic Light

1void setup() {
2  pinMode(2,OUTPUT);
3  pinMode(4,OUTPUT);
4  pinMode(7,OUTPUT);
5
6}
7
8void   loop() {
9  digitalWrite(2,HIGH);
10  delay(5000);
11  digitalWrite(2,LOW);
12
13   digitalWrite(4,HIGH);
14  delay(2000);
15  digitalWrite(4,LOW);
16
17   digitalWrite(7,HIGH);
18   delay(2000);
19  digitalWrite(7,LOW);
20
21}
22

1void setup() {
2  pinMode(2,OUTPUT);
3  pinMode(4,OUTPUT);
4  pinMode(7,OUTPUT);
5
6}
7
8void  loop() {
9  digitalWrite(2,HIGH);
10  delay(5000);
11  digitalWrite(2,LOW);
12
13  digitalWrite(4,HIGH);
14  delay(2000);
15  digitalWrite(4,LOW);
16
17   digitalWrite(7,HIGH);
18  delay(2000);
19  digitalWrite(7,LOW);
20
21}
22