---

void setup() {
Serial.begin(9600);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(A1, INPUT);
}

void loop() {
int pot = analogRead(A1);
Serial.println(pot); 
if(pot >= 100){
  digitalWrite(3, HIGH);
}
else{
  digitalWrite(3, LOW);
}
if(pot >= 666){
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
}
else{
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
}
}