const int potPin = A0;  // Analog input pin for the potentiometer
const int mosfetPin = 9;  // Digital output pin for the MOSFET gate

void setup() {
  pinMode(mosfetPin, OUTPUT);
}

void loop() {
  // Read the potentiometer value
  int potValue = analogRead(potPin);
  
  // Map the potentiometer value (0-1023) to PWM value (0-255)
  int pwmValue = map(potValue, 0, 1023, 0, 255);
  
  // Control the MOSFET using PWM
  analogWrite(mosfetPin, pwmValue);
}