const int ledpin = 9;
const int potpin = A1 ;


void setup() {
  // put your setup code here, to run once:
pinMode(ledpin , OUTPUT);
Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
int potvalue = analogRead(potpin);

Serial.println(potvalue);

if (potvalue > 800){
  analogWrite(ledpin , 225);
}
else if (potvalue > 400) {
  analogWrite(ledpin, 128);
}
else {
  analogWrite(ledpin,0 );
}
delay(100);
}