/*	Lab Test Jul 2024
	 *	Name:	CHIA HOOI BOOY
   * Class:DEEC2
	 *	Date:17-July-2024
	*/ 

#define ADC_IN A5
#define ADC_REF 3.3

char led_green = 18;
char led_green_state = LOW;

long led_green_previous_millis = 0;
int led_green_interval = 750;

long ADC_previous_millis = 0;
int ADC_interval = 1500;
int ADC_value;

void setup()
{ 
 pinMode(led_green, OUTPUT);
  Serial.begin(9600);
  delay(5000);
}

void loop() 
{
  int adcRes;
  long current_millis = millis();

  if (current_millis - led_green_previous_millis >= led_green_interval)
  {
    led_green_previous_millis = current_millis;
 
   if(led_green_state == LOW)
    led_green_state =HIGH;   
   else
    led_green_state = LOW;
   
    digitalWrite(led_green, led_green_state);
  }

  if (current_millis - ADC_previous_millis >= ADC_interval)
  {
   ADC_previous_millis = current_millis;
   ADC_value = analogRead(ADC_IN); //I use A5 (pin 33)

   Serial.println(adcRes);
   delay(1000);

//Print output of ADC to Serial Monitor
  Serial.print("ADC value = "); Serial.println(ADC_value);
  }

}