Kode pengujian

int redpin = 2;
int yellowpin = 3;
int greenpin = 4;
int apin = 6;
int bpin = 7;
int buttonpin = 5;
status int = 0;
int longiod = 5000; // waktu di hijau atau merah
int shortperiod = 700; // periode waktu saat berubah
int targetCount = shortperiod;
Int Count = 0;
void setup ()
{
  pinmode (apin, input);
  pinmode (bpin, input);
  pinmode (tombol, input);
  pinmode (redpin, output);
  pinmode (yellowpin, output);
  pinmode (greenpin, output);
}
void loop ()
{
  Count ++;
  if (DigitalRead (Buttonpin))
  {
  setlight (tinggi, tinggi, tinggi);
  }
  kalau tidak
  {
  INT Change = getEncoderTurn ();
  int newperioD = longiod + (ubah * 1000);  
  if (newperiod> = 1000 && newperiod <= 10000)
    {
  longperiod = newperiod;
    }
  if (count> targetcount)
    {
  setState ();
  hitung = 0;
    }
  }
  tunda (1);
}
int getEncoderturn ()
{

 // return -1, 0, atau +1
  static int olda = rendah;
  static int oldb = rendah;
  Hasil int = 0;
  int noda = DigitalRead (APIN);
  int newB = DigitalRead (BPIN);
  if (noda! = olda || newb! = oldb)
  {
  // sesuatu telah berubah
  if (olda == rendah && newa == tinggi)
    {
  hasil = - (oldb * 2 - 1);
    }
  }
  Olda = noda;
  oldb = newb;
  hasil pengembalian;
}
int setState ()
  {
  if (state == 0)
    {
  setlight (tinggi, rendah, rendah);
  targetCount = longiod;
  status = 1;
    }
  lain jika (state == 1)
    {
  setlight (tinggi, tinggi, rendah);
  TargetCount = Shortperiod;
  status = 2;
    }
  lain jika (state == 2)
    {
  setlight (rendah, rendah, tinggi);
  targetCount = longiod;
  status = 3;
    }
  lain jika (state == 3)
    {
  setlight (rendah, tinggi, rendah);
  TargetCount = Shortperiod;
  status = 0;
    }
  }
void setlights (int red, int yellow, int green)
{
  DigitalWrite (redpin, merah);
  DigitalWrite (Yellowpin, Yellow);
  DigitalWrite (Greenpin, Green);
}