const int pinMotor = 19;
const int preg = 35;


const int channel = 1;
const int frequency = 50;
const int resolution = 12;

const int z = resolution;



void setup() {
  pinMode(pinMotor, OUTPUT);
  ledcSetup(channel, frequency, resolution);
  ledcAttachPin(pinMotor, channel);

  Serial.begin(115200);

  pinMode(preg, INPUT);


}


void loop() {

  int z2 = pow(2, z);

int v = analogRead(preg);


  int ms_min = float(z2/20/2);
  Serial.print("Erg MIN: ");
  Serial.println(ms_min);

  int ms_max = float(z2/20*2.4);
  Serial.print("Erg MAX: ");
  Serial.println(ms_max);


int e = map(v, 0, z2, ms_min, ms_max);

Serial.print("Erg: ");
Serial.println(e);

  ledcWrite(channel, e);
  delay(50);
}