// FEUX voitures
#define GREEN1 32
#define ORANGE1 17
#define RED1 18
#define GREEN3 23
#define ORANGE3 21
#define RED3 19

// FEUX piétons
#define RED2 16
#define GREEN2 4

// SEGMENTS 7-Seg
int segPins[7] = {25, 26, 27, 14, 12, 33, 22};

const byte digits[10][7] = {
  {1,1,1,1,1,1,0}, // 0
  {0,1,1,0,0,0,0}, // 1
  {1,1,0,1,1,0,1}, // 2
  {1,1,1,1,0,0,1}, // 3
  {0,1,1,0,0,1,1}, // 4
  {1,0,1,1,0,1,1}, // 5
  {1,0,1,1,1,1,1}, // 6
  {1,1,1,0,0,0,0}, // 7
  {1,1,1,1,1,1,1}, // 8
  {1,1,1,1,0,1,1}  // 9
};

void displayDigit(int num) {
  for (int k = 0; k < 7; k++) {
    digitalWrite(segPins[k], digits[num][k]);
  }
}

void setup(){
  pinMode(RED1, OUTPUT);
  pinMode(ORANGE1, OUTPUT);
  pinMode(GREEN1, OUTPUT);
  pinMode(RED2, OUTPUT);
  pinMode(GREEN2, OUTPUT);
  pinMode(RED3, OUTPUT);
  pinMode(ORANGE3, OUTPUT);
  pinMode(GREEN3, OUTPUT);

for (int k = 0; k < 7; k++) {
    pinMode(segPins[k], OUTPUT);
  }
}

void countdown(int seconds) {
  for (int i = seconds; i >= 0; i--) {
    displayDigit(i);
    delay(1000);
  }
}

void loop(){
  digitalWrite(RED1, HIGH);
  digitalWrite(GREEN3, HIGH);
  digitalWrite(GREEN2, HIGH);
  countdown(9);
  digitalWrite(RED1, LOW);
  digitalWrite(GREEN3, LOW);
  digitalWrite(GREEN2, LOW);

  digitalWrite(ORANGE3, HIGH);
  digitalWrite(ORANGE1, HIGH);
  countdown(1);
  digitalWrite(ORANGE3, LOW);
  digitalWrite(ORANGE1, LOW);

  digitalWrite(RED3, HIGH);
  digitalWrite(GREEN1, HIGH);
  digitalWrite(RED2, HIGH);
  countdown(9);
  digitalWrite(RED3, LOW);
  digitalWrite(GREEN1, LOW);
  digitalWrite(RED2, LOW);

  digitalWrite(ORANGE3, HIGH);
  digitalWrite(ORANGE1, HIGH);
  countdown(1);
  digitalWrite(ORANGE3, LOW);
  digitalWrite(ORANGE1, LOW);

}