#define pin_key   A3
#define pin_led   12
#define pin_buz   11
#define pin_sp    A0
#define pin_so    A1

int sp;
int so;
int adc;
int sb;
int sd;

void setup() {
pinMode(pin_led, OUTPUT);
pinMode(pin_buz, OUTPUT);

pinMode(pin_key, INPUT_PULLUP);
Serial.begin(115200);
}

void loop() {
 sd = analogRead(pin_sp);
 sp = map(sd, 0, 1023, 30, 100);
 sb = analogRead(pin_so);
 so = map(sb, 0, 1023, 300, 700);
 adc = analogRead(pin_key);

 if(adc >= 20 && adc <= 80){
 digitalWrite(pin_led, HIGH);
 tone(pin_buz, so);
 delay(3* sp);
 digitalWrite(pin_led, LOW);
 noTone(pin_buz);
 delay(sp);
  }
 if(adc >= 130 && adc <= 170){
 digitalWrite(pin_led, HIGH);
 tone(pin_buz, so);
 delay(sp);
 digitalWrite(pin_led, LOW);
 noTone(pin_so);
 delay(sp);
}
Serial.println(adc);
}