long valor;
int led1=25;
int led2=23;
int led3=22;
int z=26;
int TIMPO=255;
int timpo=100;
void setup() {
 pinMode(23, OUTPUT); 
 pinMode(22, OUTPUT);
 pinMode(25, OUTPUT);
pinMode(26, OUTPUT);
delay(TIMPO);
delay(timpo); 

Serial.begin(115200);
Serial.println("valor de potenciometro");
}

void loop() {
int valor=analogRead(34);
Serial.println(valor);
if (valor<=1000){

 analogWrite(23,HIGH);
 tone(26,880,1000);
 
 if (valor<=1000)
 analogWrite( 23,HIGH);
 tone(26,880,1000);
 
 if (valor<=1000)
 analogWrite(23,HIGH);
 tone(26,800,1000);
  delay(500); 
  analogWrite(26,HIGH);

else (digitalWrite(26, LOW);

if (valor<1500,valor<2000){
  analogWrite(22,HIGH);
 tone(26,880,1000);
 
 if (valor<=1000)
 analogWrite( 22,HIGH);
 tone(26,880,1000);
 
 if (valor<=1000)
 analogWrite(22,HIGH);
 tone(26,800,1000);
  delay(500); 
  analogWrite(26,HIGH);

}







}