//This sketch varies the brightness of an LED over time!

//Note that the LED is plugged into a pin with the ~ symbol. That symbol means that that pin supports 'analogWrite'


const int led_pin = 6;  //Setting the variable for the LED pin

int led_brightness;

void setup() {
  pinMode(led_pin, OUTPUT);   //Setting the LED as an output

}

void loop() {

  //The value we get from analogread is from 0 to 1024
  //Therefore we need to divide it by 4 to get it to be from 0 to 255,
  //which is the range analogWrite takes in
  
  led_brightness = analogRead(A0) / 4;

  analogWrite(led_pin, led_brightness);
  
}