/*
 controlled flashing light using potentiometers.

 made on 1st March 2023
 by Essam Harous
 http://www.arduino.cc/en/Tutorial/Knob
*/

int potpin = A0;  // analog pin used to connect the potentiometer
int ledPin = 2;  // digital pin used to connect the LED
int val;    // variable to read the value from the analog pin

void setup() {
  pinMode(ledPin, OUTPUT);;  // attaches the servo on pin 9 to the servo object
  
}

void loop() {
  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023)
  digitalWrite(ledPin, HIGH);          // run led pin
  delay(val);                           // waits for the servo to get there
  digitalWrite(ledPin, LOW);          // run led pin
  delay(val);                           // waits for the servo to get there
}