Make a motor
answer the knob

int in1Pin = 13;      // Define L293D channel 1 pin
int in2Pin = 14;      // Define L293D channel 2 pin
int enable1Pin = 12;  // Define L293D enable 1 pin
int channel = 0;

boolean rotationDir;  // Define a variable to save the motor's rotation direction
int rotationSpeed;    // Define a variable to save the motor rotation speed

void setup() {
  Serial.begin(115200);
  pinMode(in1Pin, OUTPUT);
  pinMode(in2Pin, OUTPUT);
  pinMode(enable1Pin, OUTPUT);

  ledcAttachChannel(enable1Pin, 1000, 11, channel);//Set PWM to 11 bits, range is 0-2047
}

void loop() {
  int potenVal = analogRead(A0);      // Convert the voltage of rotary potentiometer into digital
  if (potenVal > 2048)
    rotationDir = true;
  else
    rotationDir = false;
  // Calculate the motor speed
  rotationSpeed = abs(potenVal - 2048);
  Serial.println(rotationSpeed);
  delay(100);
  driveMotor(rotationDir, constrain(rotationSpeed,0,2048));
}

void driveMotor(boolean dir, int spd) {
  // Control motor rotation direction
  if (dir) {
    digitalWrite(in1Pin, HIGH);
    digitalWrite(in2Pin, LOW);
  }
  else {
    digitalWrite(in1Pin, LOW);
    digitalWrite(in2Pin, HIGH);
  }
  // Control motor rotation speed
  ledcWrite(enable1Pin, spd);
}

in1Pin=Pin(13, Pin.OUT)
in2Pin=Pin(14, Pin.OUT)

enablePin=Pin(12, Pin.OUT)
pwm=PWM(enablePin,10000)

adc=ADC(Pin(1))

try:
    while True:
        potenVal = adc.read()
        if (potenVal > 2048):
            rotationDir = 1;
        else:
            rotationDir = 0;
        rotationSpeed=int(math.fabs((potenVal-2047)//2)-1)
        driveMotor(rotationDir,rotationSpeed)
        time.sleep_ms(10)