#include <Servo.h>
Servo diaa;
 int relay = 2;
int buzzer=5;
int but=4;
int buton;
int  gas;
int gase;
void setup() {
Serial.begin(9600);
 pinMode( relay, OUTPUT);
 pinMode(but, INPUT);
 pinMode(buzzer, OUTPUT);
diaa.attach(3);

}

void loop() {
digitalWrite( relay, LOW);


buton=digitalRead(but);
gas=analogRead(A0);
gase=map(gas, 0, 1024, 0, 100);
Serial.println("نسبة الاغز هي");

Serial.print(gase);
Serial.println("%");


diaa.write(90);
noTone(buzzer);
if(gase>=35){
tone(buzzer,500);


}
if(gase>=50){

digitalWrite( relay, HIGH);
tone(buzzer,1000);

diaa.write(0);
delay(10);


}
}