/*
  potentiometer - output to LEDs
 
  written 24 July 2024
  by James Khan
   for fab academy assignment embedded programming
  This example code is in the public domain.

  https://fabacademy.org/2021/labs/vancouver/students/james-khan/assignments/week06/
*/

// define constants to match the pin layout that you are attaching your potentiometer.
const int potentin = A3;
const int led1 = 26;
const int led2 = 0;
const int led3 = 1;

// setup our pins as inputs or outputs
void setup() {
  // initialize analog potentin pin as an input.
  pinMode(potentin, INPUT);
  
  // initialize digital led pins as output.
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
}

// the loop function runs over and over again forever
// analog input is from 0 to 1023. 1000 translates to 1 second delay. 
void loop() {
    // read potentiometer value
  int readvalue = analogRead(potentin);
  
  // reset all leds to off
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);

  if (readvalue < 350) {
    delay((readvalue));
    digitalWrite(led1, HIGH);
    delay((readvalue));
  }
  if (readvalue >= 350) {
      digitalWrite(led1, HIGH);
      delay(readvalue);
      digitalWrite(led2, HIGH);
      delay(readvalue);
  }

}