#include <Servo.h>

#define leda 1
#define ledb 2
#define ledc 3
#define buzzer 4
#define button1 5
#define PIN_TRIG 9
#define PIN_ECHO 10
Servo myservo;

int status1;
int duration;
int condition;

void setup() 
{
  Serial.begin(115200);
  myservo.attach(8);
  pinMode(leda, OUTPUT);
  pinMode(ledb, OUTPUT);
  pinMode(ledc, OUTPUT);

  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  
  pinMode(buzzer, OUTPUT);
  pinMode(button1, INPUT_PULLUP);
}

void loop()
{
  ultrasonic();
  if(duration <= 100 && status1 == 1)
  {
    led();
    status1 = 0;
  }
  else if(duration > 100)
  {
    status1 = 1;
  }
}

void led()
{
  status1 = digitalRead(button1);
  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

  int duration = pulseIn(PIN_ECHO, HIGH);
  Serial.print("distance in cm: ");
  Serial.print(duration / 58);

  duration = duration / 58;
  delay(1000);

  digitalWrite(leda, HIGH);
  myservo.write(0);
  delay(1000);
  digitalWrite(leda, LOW);

  digitalWrite(ledb, HIGH);
  delay(500);
  digitalWrite(ledb, LOW);

  digitalWrite(buzzer, HIGH);
  tone(buzzer, 1000);
  myservo.write(180);
  digitalWrite(ledc, HIGH);
  delay(1000);
  myservo.write(0);
  digitalWrite(ledc, LOW);
  digitalWrite(buzzer, LOW);
  noTone(buzzer);

}
void ultrasonic()
{
  status1 = digitalRead(button1);
  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

  duration = pulseIn(PIN_TRIG, HIGH);
  Serial.print("distance in cm: ");
  Serial.print(duration / 5);

  duration = duration / 58;
  delay(1000);

}

// unfinished project