Easy To Make Traffic Light Simulator For Begginers

1// you can use whatever you want here it doesn't matter 
2int green
3  = 10;
4int yellow = 8;
5int red = 6;
6
7void setup()
8{
9  pinMode(green,
10  OUTPUT);
11  pinMode(yellow, OUTPUT);
12  pinMode(red, OUTPUT);
13}
14
15void
16  loop()
17{
18  digitalWrite(green, HIGH);
19  delay(20000);
20  digitalWrite(yellow,
21  HIGH);
22  delay(5000);
23  digitalWrite(red, HIGH);
24  delay(20000);
25}
26

1// you can use whatever you want here it doesn't matter 
2int green  = 10;
3int yellow = 8;
4int red = 6;
5
6void setup()
7{
8  pinMode(green,  OUTPUT);
9  pinMode(yellow, OUTPUT);
10  pinMode(red, OUTPUT);
11}
12
13void  loop()
14{
15  digitalWrite(green, HIGH);
16  delay(20000);
17  digitalWrite(yellow,  HIGH);
18  delay(5000);
19  digitalWrite(red, HIGH);
20  delay(20000);
21}
22