void setup() {
  Serial.begin(115200);
  pinMode(2, INPUT);
  pinMode(14, OUTPUT);
  pinMode(15, OUTPUT); 
}

void loop() {
 int v =analogRead(2);
 Serial.println("voite:"+String(v));
 int intensity=map(v,0,4995,0,255);
 Serial.println("intersity:"+String(intensity));
 analogWrite(14,intensity);
 if(intensity>130)
 {
  digitalWrite(15, HIGH);
  Serial.println("high voltage");
 }
 else{
  digitalWrite(15, LOW);
  Serial.println("lowh voltage");
 }
}