Traffic light

Traffic lights for cars and pedestrians

Dec 31, 2021

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Components and supplies

5 mm LED: Green

ELEGOO UNO R3 Project Complete Starter Kit

5 mm LED: Yellow

Jumper wires (generic)

5 mm LED: Red

pushbutton

Breadboard (generic)

Apps and platforms

Arduino IDE

Arduino Web Editor

Project description

Code

Untitled file

c_cpp

1void setup() {
2  // put your setup code here, to run once:
3pinMode(2,INPUT);
4pinMode(8,OUTPUT);
5pinMode(9,OUTPUT);
6pinMode(10,OUTPUT);
7pinMode(11,OUTPUT);
8pinMode(12,OUTPUT);
9}
10
11void  loop() {
12  // put your main code here, to run repeatedly:
13digitalWrite(8,LOW);
14digitalWrite(9,LOW);
15digitalWrite(10,LOW);
16digitalWrite(11,LOW);
17digitalWrite(12,LOW);
18digitalWrite(10,HIGH);
19digitalWrite(9,HIGH);
20if  (digitalRead(2) ==HIGH)
21{
22  digitalWrite(10,LOW);
23  delay(500);
24  digitalWrite(10,HIGH);
25  delay(500);
26    digitalWrite(10,LOW);
27  delay(500);
28  digitalWrite(10,HIGH);
29  delay(500);  
30  digitalWrite(10,LOW);
31  delay(500);
32  digitalWrite(10,HIGH);
33  delay(500);
34  digitalWrite(10,LOW);
35  digitalWrite(11,HIGH);
36  delay(1500);
37  digitalWrite(11,LOW);
38  digitalWrite(12,HIGH);
39  delay(1500);
40  digitalWrite(9,LOW);
41  digitalWrite(8,HIGH);
42  delay(10000);
43  digitalWrite(8,LOW);
44  digitalWrite(9,HIGH);
45  delay(1500);
46  digitalWrite(12,LOW);
47  digitalWrite(10,HIGH);
48  
49}
50}

void setup() {
  // put your setup code here, to run once:
pinMode(2,INPUT);
pinMode(8,OUTPUT);
pinMode(9,OUTPUT);
pinMode(10,OUTPUT);
pinMode(11,OUTPUT);
pinMode(12,OUTPUT);
}

void  loop() {
  // put your main code here, to run repeatedly:
digitalWrite(8,LOW);
digitalWrite(9,LOW);
digitalWrite(10,LOW);
digitalWrite(11,LOW);
digitalWrite(12,LOW);
digitalWrite(10,HIGH);
digitalWrite(9,HIGH);
if  (digitalRead(2) ==HIGH)
{
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);
    digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);  
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);
  digitalWrite(10,LOW);
  digitalWrite(11,HIGH);
  delay(1500);
  digitalWrite(11,LOW);
  digitalWrite(12,HIGH);
  delay(1500);
  digitalWrite(9,LOW);
  digitalWrite(8,HIGH);
  delay(10000);
  digitalWrite(8,LOW);
  digitalWrite(9,HIGH);
  delay(1500);
  digitalWrite(12,LOW);
  digitalWrite(10,HIGH);
  
}
}

Untitled file

c_cpp

1void setup() {
2  // put your setup code here, to run once:
3pinMode(2,INPUT);
4pinMode(8,OUTPUT);
5pinMode(9,OUTPUT);
6pinMode(10,OUTPUT);
7pinMode(11,OUTPUT);
8pinMode(12,OUTPUT);
9}
10
11void
12  loop() {
13  // put your main code here, to run repeatedly:
14digitalWrite(8,LOW);
15digitalWrite(9,LOW);
16digitalWrite(10,LOW);
17digitalWrite(11,LOW);
18digitalWrite(12,LOW);
19digitalWrite(10,HIGH);
20digitalWrite(9,HIGH);
21if
22  (digitalRead(2) ==HIGH)
23{
24  digitalWrite(10,LOW);
25  delay(500);
26  digitalWrite(10,HIGH);
27
28  delay(500);
29    digitalWrite(10,LOW);
30  delay(500);
31  digitalWrite(10,HIGH);
32
33  delay(500);  
34  digitalWrite(10,LOW);
35  delay(500);
36  digitalWrite(10,HIGH);
37
38  delay(500);
39  digitalWrite(10,LOW);
40  digitalWrite(11,HIGH);
41  delay(1500);
42
43  digitalWrite(11,LOW);
44  digitalWrite(12,HIGH);
45  delay(1500);
46  digitalWrite(9,LOW);
47
48  digitalWrite(8,HIGH);
49  delay(10000);
50  digitalWrite(8,LOW);
51  digitalWrite(9,HIGH);
52
53  delay(1500);
54  digitalWrite(12,LOW);
55  digitalWrite(10,HIGH);
56  
57}
58}

void setup() {
  // put your setup code here, to run once:
pinMode(2,INPUT);
pinMode(8,OUTPUT);
pinMode(9,OUTPUT);
pinMode(10,OUTPUT);
pinMode(11,OUTPUT);
pinMode(12,OUTPUT);
}

void
  loop() {
  // put your main code here, to run repeatedly:
digitalWrite(8,LOW);
digitalWrite(9,LOW);
digitalWrite(10,LOW);
digitalWrite(11,LOW);
digitalWrite(12,LOW);
digitalWrite(10,HIGH);
digitalWrite(9,HIGH);
if
  (digitalRead(2) ==HIGH)
{
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);

  delay(500);
    digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);

  delay(500);  
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);

  delay(500);
  digitalWrite(10,LOW);
  digitalWrite(11,HIGH);
  delay(1500);

  digitalWrite(11,LOW);
  digitalWrite(12,HIGH);
  delay(1500);
  digitalWrite(9,LOW);

  digitalWrite(8,HIGH);
  delay(10000);
  digitalWrite(8,LOW);
  digitalWrite(9,HIGH);

  delay(1500);
  digitalWrite(12,LOW);
  digitalWrite(10,HIGH);
  
}
}

Downloadable files

traffic_light_6ydcPbFYo8.pdf

trafficlight_schem_BrnvTIyV57.pdf

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littlefalcon9

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