/*
  Description: Potentiometer with increasing LEDs (ok it's a short description)
  Coded by: Sh3llc0d3
 */
int greenPinOne = 10;                                // initialises green led (#1) on pin 10
int greenPinTwo = 11;                                // initialises green led (#2) on pin 11
int redPinOne = 12;                                  // initialises red led (#1) on pin 12
int redPinTwo = 13;                                  // initialises red led (#2) on pin 13

void setup() {
  pinMode(greenPinOne, OUTPUT);                      // This just sets the pins up and declares 
  pinMode(greenPinTwo, OUTPUT);                      // the above variables(pins/leds) as outputs.
  pinMode(redPinOne, OUTPUT);
  pinMode(redPinTwo, OUTPUT);
}

void loop() {
  int sensorValue = analogRead(A0);                 // I have a potentiometer hooked up to A0 (analogue pin 0) ...this declares the variable and reads input from A0.
  if (sensorValue == 0)                             // This next bit it pretty simple, just pretty much involves if statements... well it does... the if's
  {                                                 // read the value from the potentiometer and then respond giving the correct output via the led lights.
   digitalWrite(redPinOne, LOW);
    digitalWrite(redPinTwo, LOW);
    digitalWrite(greenPinOne, LOW);
    digitalWrite(greenPinTwo, LOW); 
  }
  if (sensorValue > 0 && sensorValue <= 250)
  {
    digitalWrite(redPinOne, LOW);
    digitalWrite(redPinTwo, LOW);
    digitalWrite(greenPinOne, HIGH);
    digitalWrite(greenPinTwo, LOW);
  }
  if (sensorValue > 250 && sensorValue <= 500)
  {
   digitalWrite(redPinOne, LOW);
   digitalWrite(redPinTwo, LOW);
   digitalWrite(greenPinOne, HIGH);
   digitalWrite(greenPinTwo, HIGH); 
  }
  if (sensorValue > 500 && sensorValue <= 750)
  {
   digitalWrite(redPinOne, HIGH);
    digitalWrite(redPinTwo, LOW);
    digitalWrite(greenPinOne, HIGH);
    digitalWrite(greenPinTwo, HIGH); 
  }
  if (sensorValue > 750 && sensorValue < 1000)
  {
   digitalWrite(redPinOne, HIGH);
    digitalWrite(redPinTwo, HIGH);
    digitalWrite(greenPinOne, HIGH);
    digitalWrite(greenPinTwo, HIGH); 
  }
}