const byte potansi = 27;
const byte led = 25;
int ptdeger = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(led, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  ptdeger = analogRead(potansi);
  int lamb = map(ptdeger,0,1023,0,255);
  analogWrite(led,lamb);
  delay(10); // this speeds up the simulation
}