#define red 18

const int potpin = 14;
void setup() {
  Serial.begin(9600);
  pinMode(red, OUTPUT);
}
void loop() {
  int sensorValue = analogRead(potpin);
  Serial.println(sensorValue);
  delay(100);
  if (sensorValue > 100) {
    digitalWrite(red, HIGH);
  }
  else {
    digitalWrite(red, LOW);
  }
}