#define red 19
#define orange 18
#define yellow 5
#define green 4
#define trig 25
#define echo 33
#define buzz 26

void setup(){
  Serial.begin(115200);
  pinMode(red, OUTPUT);
  pinMode(orange, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(buzz, OUTPUT);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);

  digitalWrite(green, LOW);
  digitalWrite(red, LOW);
  digitalWrite(yellow, LOW);
  digitalWrite(orange, LOW);
  noTone(buzz);
}
void loop(){

  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  int duration = pulseIn(echo, HIGH);
  float distance = duration * 0.034/2;

if (distance>50 && distance <=100){
  Serial.println("ah");
  digitalWrite(green, HIGH);
  digitalWrite(red, LOW);
  digitalWrite(orange, LOW);
  digitalWrite(yellow, LOW);
  noTone(buzz);
}

else if (distance>100 && distance <= 200){
  Serial.println("buss");
  digitalWrite(green, LOW);
  digitalWrite(red, LOW);
  digitalWrite(orange, LOW);
  digitalWrite(yellow, HIGH);
  noTone(buzz);
}

else if (distance>200 && distance <=300){
  Serial.println("ambussin");
  digitalWrite(green, LOW);
  digitalWrite(red, LOW);
  digitalWrite(orange, HIGH);
  digitalWrite(yellow, LOW);
  noTone(buzz);
}

else if (distance>300){
  Serial.println("oaghh :>");
  digitalWrite(green, LOW);
  digitalWrite(red, HIGH);
  digitalWrite(orange, LOW);
  digitalWrite(yellow, LOW);
  tone(buzz,200);
  delay(100);
  tone(buzz,250);
  delay(100);
  tone(buzz,200);
  delay(100);
  tone(buzz,300);
  }
}