//program Robot Soccer
// By Rifki Haii
int kiri_mundur = 19;
int kiri_maju = 5;
int kanan_mundur = 16;
int kanan_maju = 0;
char data;
void setup() {
  pinMode(kiri_mundur, OUTPUT);
  pinMode(kiri_maju, OUTPUT);
  pinMode(kanan_mundur, OUTPUT);
  pinMode(kanan_maju, OUTPUT);
  data = 'z' ;
  Serial.begin(9600); 
}

void maju () {
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,HIGH);
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,HIGH);
}

void mundur () {
  digitalWrite(kiri_mundur,HIGH);
  digitalWrite(kiri_maju,LOW);
  digitalWrite(kiri_mundur,HIGH);
  digitalWrite(kiri_maju,LOW);
}

void kanan () {
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,HIGH);
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,LOW);
}

void kiri () { 
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,LOW);
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,HIGH);
}

void berhenti () { 
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,LOW);
  digitalWrite(kiri_mundur,LOW);
  digitalWrite(kiri_maju,LOW);
}

void rem () { 
  digitalWrite(kiri_mundur,HIGH);
  digitalWrite(kiri_maju,HIGH);
  digitalWrite(kiri_mundur, HIGH);
  digitalWrite(kiri_maju,HIGH);
}

void loop() {
  if(Serial.available() >0){ 
    data = Serial.read();
  }
  if(data == 'w'){ 
    maju(); 
  }
  else if(data == 's'){
    mundur(); 
  }
   else if(data == 'd'){
    kanan();
   }
    else if(data == 'a'){
    kiri();
    } 
    else if(data == 'p'){
      berhenti();
    }
     else if(data == 'r'){
    rem();
    }
}