// Basic Arduiuno //
// Traffic Light With Timer//

#include <Arduino.h>
#include <TM1637TinyDisplay.h>

// Module connection pins (Digital Pins)
#define CLK 9
#define DIO 10

// The amount of time (in milliseconds) Between tests
unsigned int angka = 0;
TM1637TinyDisplay display(CLK, DIO);
int ledmerah1 = 2;
int ledkuning1 = 3;
int ledhijau1 = 4;
int ledmerah2 = 5;
int ledkuning2 = 6;
int ledhijau2 = 8;


void setup() {
  display.setBrightness(0x0f);  //maximum brightness
  pinMode(ledmerah1,OUTPUT);
  pinMode(ledkuning1,OUTPUT);
  pinMode(ledhijau1,OUTPUT);
  pinMode(ledmerah2, OUTPUT);
  pinMode(ledkuning2, OUTPUT);
  pinMode(ledhijau2, OUTPUT);
}

void loop() {
  for (angka = 20;angka>5; angka--){
    display.showNumberDec(angka);
    if(angka<=6){
      digitalWrite(ledmerah1,LOW);
      digitalWrite(ledhijau2, LOW);
    }else {
      digitalWrite(ledmerah1,HIGH);
      digitalWrite(ledhijau2, HIGH);
      delay (1000);
    }
  }
  for (angka = 6;angka>0; angka--){
    display.showNumberDec(angka);
    if(angka<=0){
      digitalWrite(ledkuning1,LOW);
      digitalWrite(ledkuning2,LOW);
    }else {
      digitalWrite(ledkuning1,HIGH);
      digitalWrite(ledkuning2,HIGH);
      delay (1000); 
    }
   }
   for (angka = 1;angka>0; angka--){
    display.showNumberDec(angka);
    if(angka<=-1){
      digitalWrite(ledkuning1,LOW);
      digitalWrite(ledkuning2,LOW);
      delay (1000); 
    }
   }
  for (angka = 20;angka>4; angka--){
    display.showNumberDec(angka);
    if(angka<=5){
      digitalWrite(ledhijau1,LOW);
      digitalWrite(ledmerah2,LOW);
    }else {
      digitalWrite(ledhijau1,HIGH);
      digitalWrite(ledmerah2,HIGH);
      delay (1000); 
    }
  }
  for (angka = 5;angka>0; angka--){
    display.showNumberDec(angka);
    if(angka<=0){
      digitalWrite(ledkuning1,LOW);
      digitalWrite(ledkuning2,LOW);
    }else {
      digitalWrite(ledkuning1,HIGH);
      digitalWrite(ledkuning2,HIGH);
      delay (1000); 
    }
  }
  for (angka = 1;angka>0; angka--){
    display.showNumberDec(angka);
    if(angka<=-1){
      digitalWrite(ledkuning1,LOW);
      digitalWrite(ledkuning2,LOW);
      delay (1000); 
    }
   }
}