Formula 1 Start Lights

Learn how to use a simple coding and LEDs to simulate a regulation start light sequence just like in Formula 1!

May 25, 2020

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8254 views

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4 respects

Components and supplies

Resistor 10k ohm

3 mm LED: Red

Tactile Switch, Top Actuated

Resistor 220 ohm

Apps and platforms

Arduino IDE

Project description

Code

arduino

1int buttonState = 0;
2long randNumber;
3
4void setup() {
5  randomSeed(analogRead(7));
6
7{
8   pinMode(2, OUTPUT);
9  pinMode(3, OUTPUT);
10  pinMode(4, OUTPUT);
11  pinMode(5,   OUTPUT);
12  pinMode(6, OUTPUT);
13  pinMode(7, INPUT);
14  }
15}
16
17void   loop() {
18  buttonState = digitalRead(7);
19  randNumber = random(4000, 7000);
20
21   if (buttonState == LOW) {
22
23    digitalWrite(2, LOW);
24    digitalWrite(3,   LOW);
25    digitalWrite(4, LOW);
26    digitalWrite(5, LOW);
27    digitalWrite(6,   LOW);   
28  }
29
30  else {
31
32    digitalWrite(2, HIGH);
33    delay(1000);
34     digitalWrite(3, HIGH);
35    delay(1000);
36    digitalWrite(4, HIGH);
37     delay(1000);
38    digitalWrite(5, HIGH);
39    delay(1000);
40    digitalWrite(6,   HIGH);
41    
42    delay(randNumber);
43    digitalWrite(2, LOW);
44    digitalWrite(3,   LOW);
45    digitalWrite(4, LOW);
46    digitalWrite(5, LOW);
47    digitalWrite(6,   LOW);
48  }
49  }
50

int buttonState = 0;
long randNumber;

void setup() {
  randomSeed(analogRead(7));

{
   pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5,   OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, INPUT);
  }
}

void   loop() {
  buttonState = digitalRead(7);
  randNumber = random(4000, 7000);

   if (buttonState == LOW) {

    digitalWrite(2, LOW);
    digitalWrite(3,   LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    digitalWrite(6,   LOW);   
  }

  else {

    digitalWrite(2, HIGH);
    delay(1000);
     digitalWrite(3, HIGH);
    delay(1000);
    digitalWrite(4, HIGH);
     delay(1000);
    digitalWrite(5, HIGH);
    delay(1000);
    digitalWrite(6,   HIGH);
    
    delay(randNumber);
    digitalWrite(2, LOW);
    digitalWrite(3,   LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    digitalWrite(6,   LOW);
  }
  }

Code

arduino

1int buttonState = 0;
2long randNumber;
3
4void setup() {
5  randomSeed(analogRead(7));
6
7{
8  pinMode(2, OUTPUT);
9  pinMode(3, OUTPUT);
10  pinMode(4, OUTPUT);
11  pinMode(5,  OUTPUT);
12  pinMode(6, OUTPUT);
13  pinMode(7, INPUT);
14  }
15}
16
17void  loop() {
18  buttonState = digitalRead(7);
19  randNumber = random(4000, 7000);
20
21  if (buttonState == LOW) {
22
23    digitalWrite(2, LOW);
24    digitalWrite(3,  LOW);
25    digitalWrite(4, LOW);
26    digitalWrite(5, LOW);
27    digitalWrite(6,  LOW);   
28  }
29
30  else {
31
32    digitalWrite(2, HIGH);
33    delay(1000);
34    digitalWrite(3, HIGH);
35    delay(1000);
36    digitalWrite(4, HIGH);
37    delay(1000);
38    digitalWrite(5, HIGH);
39    delay(1000);
40    digitalWrite(6,  HIGH);
41    
42    delay(randNumber);
43    digitalWrite(2, LOW);
44    digitalWrite(3,  LOW);
45    digitalWrite(4, LOW);
46    digitalWrite(5, LOW);
47    digitalWrite(6,  LOW);
48  }
49  }
50

int buttonState = 0;
long randNumber;

void setup() {
  randomSeed(analogRead(7));

{
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5,  OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, INPUT);
  }
}

void  loop() {
  buttonState = digitalRead(7);
  randNumber = random(4000, 7000);

  if (buttonState == LOW) {

    digitalWrite(2, LOW);
    digitalWrite(3,  LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    digitalWrite(6,  LOW);   
  }

  else {

    digitalWrite(2, HIGH);
    delay(1000);
    digitalWrite(3, HIGH);
    delay(1000);
    digitalWrite(4, HIGH);
    delay(1000);
    digitalWrite(5, HIGH);
    delay(1000);
    digitalWrite(6,  HIGH);
    
    delay(randNumber);
    digitalWrite(2, LOW);
    digitalWrite(3,  LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    digitalWrite(6,  LOW);
  }
  }

Downloadable files

Fritzing Diagram

Frizting Diagram

http://fritzing.org/projects/formula-1-starting-lights

Fritzing Diagram

Frizting Diagram

http://fritzing.org/projects/formula-1-starting-lights

Schematic

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