uint8_t led[4]={19,21,22,35};
uint8_t tombol[4]={2,4,16,5};
uint8_t sseg[3]={17,5,18};
uint8_t buzzer=15;
uint8_t lm35=13;
                    //f e d c b a h g
uint8_t dseg[10][8]={{0,0,0,0,0,0,1,1}, //0
                     {1,1,1,0,0,1,1,1}, //1
                     {1,0,0,1,0,0,1,0}, //2
                     {1,1,0,0,0,0,1,1}, //3
                     {0,1,1,0,0,1,1,0}, //4
                     {0,1,0,0,1,0,1,0}, //5
                     {0,0,0,0,1,0,1,0}, //6
                     {1,1,1,0,0,0,1,1}, //7
                     {0,0,0,0,0,0,1,0}, //8
                     {0,1,0,0,0,0,1,0}}; //9


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  for(uint8_t i=0;i<4;i++){
    pinMode(tombol[i],INPUT_PULLUP);
    pinMode(led[i],OUTPUT);
  }
  pinMode(sseg[0],OUTPUT);
  pinMode(sseg[1],OUTPUT);
  pinMode(sseg[2],OUTPUT);
  pinMode(buzzer,OUTPUT);
  for(uint8_t i=0;i<4;i++)
    digitalWrite(led[i], HIGH);
}

uint8_t hitung=0;

void loop() {
  uint8_t potensio=analogRead(lm35) * (9.0 / 4095.0);
  // put your main code here, to run repeatedly:
  for(uint8_t i=0;i<8;i++)
    digitalWrite(led[i],digitalRead(tombol[i]));
  for(uint8_t i=0;i<8;i++){
    digitalWrite(sseg[1],HIGH);
    digitalWrite(sseg[2],HIGH);
    digitalWrite(sseg[0],HIGH);
    digitalWrite(sseg[2],LOW);
    digitalWrite(sseg[1],LOW);
  }
  for(uint8_t i=0;i<8;i++){
    digitalWrite(sseg[1],HIGH);
    digitalWrite(sseg[2],HIGH);
    digitalWrite(sseg[0],dseg[potensio][i]);
    digitalWrite(sseg[2],LOW);
    digitalWrite(sseg[1],LOW);
  }
  delay(500);
  if (hitung<9) 
    hitung++;
  else
    hitung=0;
  tone(buzzer,700);
  delay(potensio*10);
   tone(buzzer,500);
  delay(potensio*10);
  tone(buzzer,700);
  delay(potensio*10);
  noTone(buzzer);
  delay(potensio*10);
}