/*	Lab Test 2
	 *	Name:	CHIA HOOI BOOY
   * Class: DEEC2
	 *	Date:17-July-2024
	*/ 


#define ADC_IN A5
#define ADC_REF 3.3  

char led_red = 23;
char led_red_state = LOW;

long led_red_previousMillisA = 0;
int led_red_intervalA = 1000;

long ADC_previousMillisA = 0;
int ADC_intervalA = 500;
int ADC_value;

void setup()
{
  // put your setup code here, to run once:
  pinMode(led_red, OUTPUT);

  Serial.begin(9600);
  delay(5000);
}

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

  if (currentMillisA - led_red_previousMillisA >= led_red_intervalA)
  {
    led_red_previousMillisA = currentMillisA;
 
   if(led_red_state == LOW)
    led_red_state =HIGH;   
   else
    led_red_state = LOW;
   
    digitalWrite(led_red, led_red_state);
  }

  if (currentMillisA - ADC_previousMillisA >= ADC_intervalA)
  {
   ADC_previousMillisA = currentMillisA;
   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);
  }
if (ADC_value <= 1000)
 {

 digitalWrite(led_red, LOW);
 }
 else if ( (ADC_value > 1000) && (ADC_value < 3500) ) 
 {
 digitalWrite(led_red,HIGH);
 }
 else 
 {
  digitalWrite(led_red, HIGH);
  digitalWrite(led_red, led_red_state);
 }
 
}