//led
int ledA = 3;
int ledB = 4;
int ledC = 5;
byte color = 'red'

//seven segment
int a = 6;
int b = 7;
int c = 8;
int d = 9;
int e = 10;
int f = 11;
int g = 12;

void setup() {
  // put your setup code here, to run once:
  //setup LED mode
  pinMode(ledA, OUTPUT);
  pinMode(ledB, OUTPUT);
  pinMode(ledC, OUTPUT);

  //setup seven segment mode
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  red();
  delay(1000); //jeda 1 detik
  yellow();
  delay(1000);
  green();
  delay(1000);
}

//LED merah hidup
void red() {
  digitalWrite(ledA, 1); // set lampu A hidup
  digitalWrite(ledB, 0); // set lampu B mati
  digitalWrite(ledC, 0); //set lampu C mati
}

//LED kuning hidup
void yellow() {
  digitalWrite(ledA, 0); // set lampu A mati
  digitalWrite(ledB, 1); //set lampu B hidup
  digitalWrite(ledC, 0); //set lampu C mati
}

//LED hijau hidup
void green() {
  digitalWrite(ledA, 0); // set lampu A mati
  digitalWrite(ledB, 0); // set lampu B mati
  digitalWrite(ledC, 1); //set lampu C hidup
}

//seven segment lima
void five(){

}

//seven segment empat
void four() {

}

//seven segment tiga
void three() {

}

//seven segment dua
void two() {

}

//seven segment satu
void one() {

}